git.delta.rocks / unique-network / refs/commits / 2e3c4de7682f

difftreelog

Merge pull request #647 from UniqueNetwork/feature/supports-interface-for-erc721-metadata

Yaroslav Bolyukin2022-10-18parents: #764e4a6 #7e2fc0e.patch.diff
in: master

57 files changed

modified.maintain/scripts/generate_sol.shdiffbeforeafterboth
--- a/.maintain/scripts/generate_sol.sh
+++ b/.maintain/scripts/generate_sol.sh
@@ -11,4 +11,6 @@
 formatted=$(mktemp)
 prettier --config $PRETTIER_CONFIG $raw > $formatted
 
+sed -i -E -e "s/.+\/\/ FORMATTING: FORCE NEWLINE//g" $formatted
+
 mv $formatted $OUTPUT
modifiedcrates/evm-coder/procedural/src/solidity_interface.rsdiffbeforeafterboth
--- a/crates/evm-coder/procedural/src/solidity_interface.rs
+++ b/crates/evm-coder/procedural/src/solidity_interface.rs
@@ -291,22 +291,40 @@
 
 struct MethodInfo {
 	rename_selector: Option<String>,
+	hide: bool,
 }
 impl Parse for MethodInfo {
 	fn parse(input: ParseStream) -> syn::Result<Self> {
 		let mut rename_selector = None;
-		let lookahead = input.lookahead1();
-		if lookahead.peek(kw::rename_selector) {
-			let k = input.parse::<kw::rename_selector>()?;
-			input.parse::<Token![=]>()?;
-			if rename_selector
-				.replace(input.parse::<LitStr>()?.value())
-				.is_some()
-			{
-				return Err(syn::Error::new(k.span(), "rename_selector is already set"));
+		let mut hide = false;
+		while !input.is_empty() {
+			let lookahead = input.lookahead1();
+			if lookahead.peek(kw::rename_selector) {
+				let k = input.parse::<kw::rename_selector>()?;
+				input.parse::<Token![=]>()?;
+				if rename_selector
+					.replace(input.parse::<LitStr>()?.value())
+					.is_some()
+				{
+					return Err(syn::Error::new(k.span(), "rename_selector is already set"));
+				}
+			} else if lookahead.peek(kw::hide) {
+				input.parse::<kw::hide>()?;
+				hide = true;
+			} else {
+				return Err(lookahead.error());
+			}
+
+			if input.peek(Token![,]) {
+				input.parse::<Token![,]>()?;
+			} else if !input.is_empty() {
+				return Err(syn::Error::new(input.span(), "expected end"));
 			}
 		}
-		Ok(Self { rename_selector })
+		Ok(Self {
+			rename_selector,
+			hide,
+		})
 	}
 }
 
@@ -548,6 +566,7 @@
 	syn::custom_keyword!(expect_selector);
 
 	syn::custom_keyword!(rename_selector);
+	syn::custom_keyword!(hide);
 }
 
 /// Rust methods are parsed into this structure when Solidity code is generated
@@ -558,6 +577,7 @@
 	screaming_name: Ident,
 	selector_str: String,
 	selector: u32,
+	hide: bool,
 	args: Vec<MethodArg>,
 	has_normal_args: bool,
 	has_value_args: bool,
@@ -570,6 +590,7 @@
 	fn try_from(value: &ImplItemMethod) -> syn::Result<Self> {
 		let mut info = MethodInfo {
 			rename_selector: None,
+			hide: false,
 		};
 		let mut docs = Vec::new();
 		let mut weight = None;
@@ -667,6 +688,7 @@
 			screaming_name: snake_ident_to_screaming(ident),
 			selector_str,
 			selector,
+			hide: info.hide,
 			args,
 			has_normal_args,
 			has_value_args,
@@ -826,12 +848,14 @@
 		let docs = &self.docs;
 		let selector_str = &self.selector_str;
 		let selector = self.selector;
+		let hide = self.hide;
 		let is_payable = self.has_value_args;
 		quote! {
 			SolidityFunction {
 				docs: &[#(#docs),*],
 				selector_str: #selector_str,
 				selector: #selector,
+				hide: #hide,
 				name: #camel_name,
 				mutability: #mutability,
 				is_payable: #is_payable,
modifiedcrates/evm-coder/src/solidity.rsdiffbeforeafterboth
--- a/crates/evm-coder/src/solidity.rs
+++ b/crates/evm-coder/src/solidity.rs
@@ -225,7 +225,7 @@
 
 pub trait SolidityArguments {
 	fn solidity_name(&self, writer: &mut impl fmt::Write, tc: &TypeCollector) -> fmt::Result;
-	fn solidity_get(&self, writer: &mut impl fmt::Write) -> fmt::Result;
+	fn solidity_get(&self, prefix: &str, writer: &mut impl fmt::Write) -> fmt::Result;
 	fn solidity_default(&self, writer: &mut impl fmt::Write, tc: &TypeCollector) -> fmt::Result;
 	fn is_empty(&self) -> bool {
 		self.len() == 0
@@ -248,7 +248,7 @@
 			Ok(())
 		}
 	}
-	fn solidity_get(&self, _writer: &mut impl fmt::Write) -> fmt::Result {
+	fn solidity_get(&self, _prefix: &str, _writer: &mut impl fmt::Write) -> fmt::Result {
 		Ok(())
 	}
 	fn solidity_default(&self, writer: &mut impl fmt::Write, tc: &TypeCollector) -> fmt::Result {
@@ -283,8 +283,8 @@
 			Ok(())
 		}
 	}
-	fn solidity_get(&self, writer: &mut impl fmt::Write) -> fmt::Result {
-		writeln!(writer, "\t\t{};", self.0)
+	fn solidity_get(&self, prefix: &str, writer: &mut impl fmt::Write) -> fmt::Result {
+		writeln!(writer, "\t{prefix}\t{};", self.0)
 	}
 	fn solidity_default(&self, writer: &mut impl fmt::Write, tc: &TypeCollector) -> fmt::Result {
 		T::solidity_default(writer, tc)
@@ -318,8 +318,8 @@
 			Ok(())
 		}
 	}
-	fn solidity_get(&self, writer: &mut impl fmt::Write) -> fmt::Result {
-		writeln!(writer, "\t\t{};", self.1)
+	fn solidity_get(&self, prefix: &str, writer: &mut impl fmt::Write) -> fmt::Result {
+		writeln!(writer, "\t{prefix}\t{};", self.1)
 	}
 	fn solidity_default(&self, writer: &mut impl fmt::Write, tc: &TypeCollector) -> fmt::Result {
 		T::solidity_default(writer, tc)
@@ -337,7 +337,7 @@
 	fn solidity_name(&self, _writer: &mut impl fmt::Write, _tc: &TypeCollector) -> fmt::Result {
 		Ok(())
 	}
-	fn solidity_get(&self, _writer: &mut impl fmt::Write) -> fmt::Result {
+	fn solidity_get(&self, _prefix: &str, _writer: &mut impl fmt::Write) -> fmt::Result {
 		Ok(())
 	}
 	fn solidity_default(&self, _writer: &mut impl fmt::Write, _tc: &TypeCollector) -> fmt::Result {
@@ -365,9 +365,9 @@
         )* );
 		Ok(())
 	}
-	fn solidity_get(&self, writer: &mut impl fmt::Write) -> fmt::Result {
+	fn solidity_get(&self, prefix: &str, writer: &mut impl fmt::Write) -> fmt::Result {
 		for_tuples!( #(
-            Tuple.solidity_get(writer)?;
+            Tuple.solidity_get(prefix, writer)?;
         )* );
 		Ok(())
 	}
@@ -418,6 +418,7 @@
 	pub docs: &'static [&'static str],
 	pub selector_str: &'static str,
 	pub selector: u32,
+	pub hide: bool,
 	pub name: &'static str,
 	pub args: A,
 	pub result: R,
@@ -431,16 +432,21 @@
 		writer: &mut impl fmt::Write,
 		tc: &TypeCollector,
 	) -> fmt::Result {
+		let hide_comment = self.hide.then(|| "// ").unwrap_or("");
 		for doc in self.docs {
-			writeln!(writer, "\t///{}", doc)?;
+			writeln!(writer, "\t{hide_comment}///{}", doc)?;
 		}
 		writeln!(
 			writer,
-			"\t/// @dev EVM selector for this function is: 0x{:0>8x},",
+			"\t{hide_comment}/// @dev EVM selector for this function is: 0x{:0>8x},",
 			self.selector
 		)?;
-		writeln!(writer, "\t///  or in textual repr: {}", self.selector_str)?;
-		write!(writer, "\tfunction {}(", self.name)?;
+		writeln!(
+			writer,
+			"\t{hide_comment}///  or in textual repr: {}",
+			self.selector_str
+		)?;
+		write!(writer, "\t{hide_comment}function {}(", self.name)?;
 		self.args.solidity_name(writer, tc)?;
 		write!(writer, ")")?;
 		if is_impl {
@@ -463,22 +469,25 @@
 		}
 		if is_impl {
 			writeln!(writer, " {{")?;
-			writeln!(writer, "\t\trequire(false, stub_error);")?;
-			self.args.solidity_get(writer)?;
+			writeln!(writer, "\t{hide_comment}\trequire(false, stub_error);")?;
+			self.args.solidity_get(hide_comment, writer)?;
 			match &self.mutability {
 				SolidityMutability::Pure => {}
-				SolidityMutability::View => writeln!(writer, "\t\tdummy;")?,
-				SolidityMutability::Mutable => writeln!(writer, "\t\tdummy = 0;")?,
+				SolidityMutability::View => writeln!(writer, "\t{hide_comment}\tdummy;")?,
+				SolidityMutability::Mutable => writeln!(writer, "\t{hide_comment}\tdummy = 0;")?,
 			}
 			if !self.result.is_empty() {
-				write!(writer, "\t\treturn ")?;
+				write!(writer, "\t{hide_comment}\treturn ")?;
 				self.result.solidity_default(writer, tc)?;
 				writeln!(writer, ";")?;
 			}
-			writeln!(writer, "\t}}")?;
+			writeln!(writer, "\t{hide_comment}}}")?;
 		} else {
 			writeln!(writer, ";")?;
 		}
+		if self.hide {
+			writeln!(writer, "// FORMATTING: FORCE NEWLINE")?;
+		}
 		Ok(())
 	}
 }
modifiedpallets/common/src/dispatch.rsdiffbeforeafterboth
--- a/pallets/common/src/dispatch.rs
+++ b/pallets/common/src/dispatch.rs
@@ -9,7 +9,7 @@
 	traits::Get,
 };
 use sp_runtime::DispatchError;
-use up_data_structs::{CollectionId, CreateCollectionData};
+use up_data_structs::{CollectionId, CreateCollectionData, CollectionFlags};
 
 use crate::{pallet::Config, CommonCollectionOperations, CollectionHandle};
 
@@ -80,6 +80,7 @@
 		sender: T::CrossAccountId,
 		payer: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
+		flags: CollectionFlags,
 	) -> Result<CollectionId, DispatchError>;
 
 	/// Delete the collection.
modifiedpallets/common/src/erc.rsdiffbeforeafterboth
--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -592,6 +592,7 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
+	#[solidity(rename_selector = "changeCollectionOwner")]
 	fn set_owner(&mut self, caller: caller, new_owner: address) -> Result<void> {
 		self.consume_store_writes(1)?;
 
@@ -659,11 +660,6 @@
 	/// Keys.
 	pub mod key {
 		use super::*;
-
-		/// Key "schemaName".
-		pub fn schema_name() -> up_data_structs::PropertyKey {
-			property_key_from_bytes(b"schemaName").expect(EXPECT_CONVERT_ERROR)
-		}
 
 		/// Key "baseURI".
 		pub fn base_uri() -> up_data_structs::PropertyKey {
@@ -672,30 +668,17 @@
 
 		/// Key "url".
 		pub fn url() -> up_data_structs::PropertyKey {
-			property_key_from_bytes(b"url").expect(EXPECT_CONVERT_ERROR)
+			property_key_from_bytes(b"URI").expect(EXPECT_CONVERT_ERROR)
 		}
 
 		/// Key "suffix".
 		pub fn suffix() -> up_data_structs::PropertyKey {
-			property_key_from_bytes(b"suffix").expect(EXPECT_CONVERT_ERROR)
+			property_key_from_bytes(b"URISuffix").expect(EXPECT_CONVERT_ERROR)
 		}
 
 		/// Key "parentNft".
 		pub fn parent_nft() -> up_data_structs::PropertyKey {
 			property_key_from_bytes(b"parentNft").expect(EXPECT_CONVERT_ERROR)
-		}
-	}
-
-	/// Values.
-	pub mod value {
-		use super::*;
-
-		/// Value "ERC721Metadata".
-		pub const ERC721_METADATA: &[u8] = b"ERC721Metadata";
-
-		/// Value for [`ERC721_METADATA`].
-		pub fn erc721() -> up_data_structs::PropertyValue {
-			property_value_from_bytes(ERC721_METADATA).expect(EXPECT_CONVERT_ERROR)
 		}
 	}
 
modifiedpallets/common/src/lib.rsdiffbeforeafterboth
--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -71,6 +71,7 @@
 	Collection,
 	RpcCollection,
 	CollectionFlags,
+	RpcCollectionFlags,
 	CollectionId,
 	CreateItemData,
 	MAX_TOKEN_PREFIX_LENGTH,
@@ -824,7 +825,11 @@
 			token_property_permissions,
 			properties,
 			read_only: flags.external,
-			foreign: flags.foreign,
+
+			flags: RpcCollectionFlags {
+				foreign: flags.foreign,
+				erc721metadata: flags.erc721metadata,
+			},
 		})
 	}
 }
modifiedpallets/evm-contract-helpers/src/stubs/ContractHelpers.rawdiffbeforeafterboth

binary blob — no preview

modifiedpallets/fungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/fungible/src/lib.rs
+++ b/pallets/fungible/src/lib.rs
@@ -212,8 +212,9 @@
 		owner: T::CrossAccountId,
 		payer: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
+		flags: CollectionFlags,
 	) -> Result<CollectionId, DispatchError> {
-		<PalletCommon<T>>::init_collection(owner, payer, data, CollectionFlags::default())
+		<PalletCommon<T>>::init_collection(owner, payer, data, flags)
 	}
 
 	/// Initializes the collection with ForeignCollection flag. Returns [CollectionId] on success, [DispatchError] otherwise.
modifiedpallets/fungible/src/stubs/UniqueFungible.rawdiffbeforeafterboth

binary blob — no preview

modifiedpallets/fungible/src/stubs/UniqueFungible.soldiffbeforeafterboth
--- a/pallets/fungible/src/stubs/UniqueFungible.sol
+++ b/pallets/fungible/src/stubs/UniqueFungible.sol
@@ -18,7 +18,7 @@
 }
 
 /// @title A contract that allows you to work with collections.
-/// @dev the ERC-165 identifier for this interface is 0x3e1e8083
+/// @dev the ERC-165 identifier for this interface is 0x62e22290
 contract Collection is Dummy, ERC165 {
 	/// Set collection property.
 	///
@@ -296,9 +296,9 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
-	/// @dev EVM selector for this function is: 0x13af4035,
-	///  or in textual repr: setOwner(address)
-	function setOwner(address newOwner) public {
+	/// @dev EVM selector for this function is: 0x4f53e226,
+	///  or in textual repr: changeCollectionOwner(address)
+	function changeCollectionOwner(address newOwner) public {
 		require(false, stub_error);
 		newOwner;
 		dummy = 0;
modifiedpallets/nonfungible/src/benchmarking.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/benchmarking.rs
+++ b/pallets/nonfungible/src/benchmarking.rs
@@ -55,7 +55,7 @@
 		owner,
 		CollectionMode::NFT,
 		|owner: T::CrossAccountId, data| {
-			<Pallet<T>>::init_collection(owner.clone(), owner, data, true)
+			<Pallet<T>>::init_collection(owner.clone(), owner, data, Default::default())
 		},
 		NonfungibleHandle::cast,
 	)
modifiedpallets/nonfungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -33,16 +33,12 @@
 use pallet_evm_coder_substrate::dispatch_to_evm;
 use sp_std::vec::Vec;
 use pallet_common::{
-	erc::{
-		CommonEvmHandler, PrecompileResult, CollectionCall,
-		static_property::{key, value as property_value},
-	},
+	erc::{CommonEvmHandler, PrecompileResult, CollectionCall, static_property::key},
 	CollectionHandle, CollectionPropertyPermissions,
 };
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::call;
 use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};
-use alloc::string::ToString;
 
 use crate::{
 	AccountBalance, Config, CreateItemData, NonfungibleHandle, Pallet, TokenData, TokensMinted,
@@ -194,7 +190,7 @@
 }
 
 #[derive(ToLog)]
-pub enum ERC721MintableEvents {
+pub enum ERC721UniqueMintableEvents {
 	#[allow(dead_code)]
 	MintingFinished {},
 }
@@ -204,15 +200,17 @@
 #[solidity_interface(name = ERC721Metadata, expect_selector = 0x5b5e139f)]
 impl<T: Config> NonfungibleHandle<T> {
 	/// @notice A descriptive name for a collection of NFTs in this contract
-	fn name(&self) -> Result<string> {
-		Ok(decode_utf16(self.name.iter().copied())
-			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))
-			.collect::<string>())
+	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	#[solidity(hide, rename_selector = "name")]
+	fn name_proxy(&self) -> Result<string> {
+		self.name()
 	}
 
 	/// @notice An abbreviated name for NFTs in this contract
-	fn symbol(&self) -> Result<string> {
-		Ok(string::from_utf8_lossy(&self.token_prefix).into())
+	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	#[solidity(hide, rename_selector = "symbol")]
+	fn symbol_proxy(&self) -> Result<string> {
+		self.symbol()
 	}
 
 	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
@@ -228,35 +226,38 @@
 	fn token_uri(&self, token_id: uint256) -> Result<string> {
 		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 
-		if let Ok(url) = get_token_property(self, token_id_u32, &key::url()) {
-			if !url.is_empty() {
-				return Ok(url);
+		match get_token_property(self, token_id_u32, &key::url()).as_deref() {
+			Err(_) | Ok("") => (),
+			Ok(url) => {
+				return Ok(url.into());
 			}
-		} else if !is_erc721_metadata_compatible::<T>(self.id) {
-			return Err("tokenURI not set".into());
-		}
+		};
 
-		if let Some(base_uri) =
+		let base_uri =
 			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())
-		{
-			if !base_uri.is_empty() {
-				let base_uri = string::from_utf8(base_uri.into_inner()).map_err(|e| {
+				.map(BoundedVec::into_inner)
+				.map(string::from_utf8)
+				.transpose()
+				.map_err(|e| {
 					Error::Revert(alloc::format!(
 						"Can not convert value \"baseURI\" to string with error \"{}\"",
 						e
 					))
 				})?;
-				if let Ok(suffix) = get_token_property(self, token_id_u32, &key::suffix()) {
-					if !suffix.is_empty() {
-						return Ok(base_uri + suffix.as_str());
-					}
-				}
 
-				return Ok(base_uri + token_id.to_string().as_str());
+		let base_uri = match base_uri.as_deref() {
+			None | Some("") => {
+				return Ok("".into());
 			}
-		}
+			Some(base_uri) => base_uri.into(),
+		};
 
-		Ok("".into())
+		Ok(
+			match get_token_property(self, token_id_u32, &key::suffix()).as_deref() {
+				Err(_) | Ok("") => base_uri,
+				Ok(suffix) => base_uri + suffix,
+			},
+		)
 	}
 }
 
@@ -427,19 +428,33 @@
 }
 
 /// @title ERC721 minting logic.
-#[solidity_interface(name = ERC721Mintable, events(ERC721MintableEvents))]
+#[solidity_interface(name = ERC721UniqueMintable, events(ERC721UniqueMintableEvents))]
 impl<T: Config> NonfungibleHandle<T> {
 	fn minting_finished(&self) -> Result<bool> {
 		Ok(false)
 	}
 
 	/// @notice Function to mint token.
+	/// @param to The new owner
+	/// @return uint256 The id of the newly minted token
+	#[weight(<SelfWeightOf<T>>::create_item())]
+	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {
+		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+			.checked_add(1)
+			.ok_or("item id overflow")?
+			.into();
+		self.mint_check_id(caller, to, token_id)?;
+		Ok(token_id)
+	}
+
+	/// @notice Function to mint token.
 	/// @dev `tokenId` should be obtained with `nextTokenId` method,
 	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
 	/// @param tokenId ID of the minted NFT
+	#[solidity(hide, rename_selector = "mint")]
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {
+	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token_id: u32 = token_id.try_into()?;
@@ -470,14 +485,34 @@
 	}
 
 	/// @notice Function to mint token with the given tokenUri.
+	/// @param to The new owner
+	/// @param tokenUri Token URI that would be stored in the NFT properties
+	/// @return uint256 The id of the newly minted token
+	#[solidity(rename_selector = "mintWithTokenURI")]
+	#[weight(<SelfWeightOf<T>>::create_item())]
+	fn mint_with_token_uri(
+		&mut self,
+		caller: caller,
+		to: address,
+		token_uri: string,
+	) -> Result<uint256> {
+		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+			.checked_add(1)
+			.ok_or("item id overflow")?
+			.into();
+		self.mint_with_token_uri_check_id(caller, to, token_id, token_uri)?;
+		Ok(token_id)
+	}
+
+	/// @notice Function to mint token with the given tokenUri.
 	/// @dev `tokenId` should be obtained with `nextTokenId` method,
 	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
 	/// @param tokenId ID of the minted NFT
 	/// @param tokenUri Token URI that would be stored in the NFT properties
-	#[solidity(rename_selector = "mintWithTokenURI")]
+	#[solidity(hide, rename_selector = "mintWithTokenURI")]
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint_with_token_uri(
+	fn mint_with_token_uri_check_id(
 		&mut self,
 		caller: caller,
 		to: address,
@@ -550,17 +585,6 @@
 	Err("Property tokenURI not found".into())
 }
 
-fn is_erc721_metadata_compatible<T: Config>(collection_id: CollectionId) -> bool {
-	if let Some(shema_name) =
-		pallet_common::Pallet::<T>::get_collection_property(collection_id, &key::schema_name())
-	{
-		let shema_name = shema_name.into_inner();
-		shema_name == property_value::ERC721_METADATA
-	} else {
-		false
-	}
-}
-
 fn get_token_permission<T: Config>(
 	collection_id: CollectionId,
 	key: &PropertyKey,
@@ -575,21 +599,23 @@
 			Error::Revert(alloc::format!("No permission for key {}", key))
 		})?;
 	Ok(a)
-}
-
-fn has_token_permission<T: Config>(collection_id: CollectionId, key: &PropertyKey) -> bool {
-	if let Ok(token_property_permissions) =
-		CollectionPropertyPermissions::<T>::try_get(collection_id)
-	{
-		return token_property_permissions.contains_key(key);
-	}
-
-	false
 }
 
 /// @title Unique extensions for ERC721.
 #[solidity_interface(name = ERC721UniqueExtensions)]
 impl<T: Config> NonfungibleHandle<T> {
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	fn name(&self) -> Result<string> {
+		Ok(decode_utf16(self.name.iter().copied())
+			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))
+			.collect::<string>())
+	}
+
+	/// @notice An abbreviated name for NFTs in this contract
+	fn symbol(&self) -> Result<string> {
+		Ok(string::from_utf8_lossy(&self.token_prefix).into())
+	}
+
 	/// @notice Transfer ownership of an NFT
 	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`
 	///  is the zero address. Throws if `tokenId` is not a valid NFT.
@@ -642,6 +668,7 @@
 	///  should be obtained with `nextTokenId` method
 	/// @param to The new owner
 	/// @param tokenIds IDs of the minted NFTs
+	// #[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]
 	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
@@ -678,7 +705,7 @@
 	///  numbers and first number should be obtained with `nextTokenId` method
 	/// @param to The new owner
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
-	#[solidity(rename_selector = "mintBulkWithTokenURI")]
+	#[solidity(/*hide,*/ rename_selector = "mintBulkWithTokenURI")]
 	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32))]
 	fn mint_bulk_with_token_uri(
 		&mut self,
@@ -731,11 +758,11 @@
 	name = UniqueNFT,
 	is(
 		ERC721,
-		ERC721Metadata,
 		ERC721Enumerable,
 		ERC721UniqueExtensions,
-		ERC721Mintable,
+		ERC721UniqueMintable,
 		ERC721Burnable,
+		ERC721Metadata(if(this.flags.erc721metadata)),
 		Collection(via(common_mut returns CollectionHandle<T>)),
 		TokenProperties,
 	)
modifiedpallets/nonfungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/lib.rs
+++ b/pallets/nonfungible/src/lib.rs
@@ -295,6 +295,7 @@
 		&mut self.0
 	}
 }
+
 impl<T: Config> WithRecorder<T> for NonfungibleHandle<T> {
 	fn recorder(&self) -> &SubstrateRecorder<T> {
 		self.0.recorder()
@@ -407,17 +408,9 @@
 		owner: T::CrossAccountId,
 		payer: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
-		is_external: bool,
+		flags: CollectionFlags,
 	) -> Result<CollectionId, DispatchError> {
-		<PalletCommon<T>>::init_collection(
-			owner,
-			payer,
-			data,
-			CollectionFlags {
-				external: is_external,
-				..Default::default()
-			},
-		)
+		<PalletCommon<T>>::init_collection(owner, payer, data, flags)
 	}
 
 	/// Destroy NFT collection
modifiedpallets/nonfungible/src/stubs/UniqueNFT.rawdiffbeforeafterboth

binary blob — no preview

modifiedpallets/nonfungible/src/stubs/UniqueNFT.soldiffbeforeafterboth
--- a/pallets/nonfungible/src/stubs/UniqueNFT.sol
+++ b/pallets/nonfungible/src/stubs/UniqueNFT.sol
@@ -91,7 +91,7 @@
 }
 
 /// @title A contract that allows you to work with collections.
-/// @dev the ERC-165 identifier for this interface is 0x3e1e8083
+/// @dev the ERC-165 identifier for this interface is 0x62e22290
 contract Collection is Dummy, ERC165 {
 	/// Set collection property.
 	///
@@ -369,9 +369,9 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
-	/// @dev EVM selector for this function is: 0x13af4035,
-	///  or in textual repr: setOwner(address)
-	function setOwner(address newOwner) public {
+	/// @dev EVM selector for this function is: 0x4f53e226,
+	///  or in textual repr: changeCollectionOwner(address)
+	function changeCollectionOwner(address newOwner) public {
 		require(false, stub_error);
 		newOwner;
 		dummy = 0;
@@ -384,6 +384,49 @@
 	uint256 field_1;
 }
 
+/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
+/// @dev See https://eips.ethereum.org/EIPS/eip-721
+/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
+contract ERC721Metadata is Dummy, ERC165 {
+	// /// @notice A descriptive name for a collection of NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x06fdde03,
+	// ///  or in textual repr: name()
+	// function name() public view returns (string memory) {
+	// 	require(false, stub_error);
+	// 	dummy;
+	// 	return "";
+	// }
+
+	// /// @notice An abbreviated name for NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x95d89b41,
+	// ///  or in textual repr: symbol()
+	// function symbol() public view returns (string memory) {
+	// 	require(false, stub_error);
+	// 	dummy;
+	// 	return "";
+	// }
+
+	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
+	///
+	/// @dev If the token has a `url` property and it is not empty, it is returned.
+	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
+	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
+	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
+	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
+	///
+	/// @return token's const_metadata
+	/// @dev EVM selector for this function is: 0xc87b56dd,
+	///  or in textual repr: tokenURI(uint256)
+	function tokenURI(uint256 tokenId) public view returns (string memory) {
+		require(false, stub_error);
+		tokenId;
+		dummy;
+		return "";
+	}
+}
+
 /// @title ERC721 Token that can be irreversibly burned (destroyed).
 /// @dev the ERC-165 identifier for this interface is 0x42966c68
 contract ERC721Burnable is Dummy, ERC165 {
@@ -401,13 +444,13 @@
 }
 
 /// @dev inlined interface
-contract ERC721MintableEvents {
+contract ERC721UniqueMintableEvents {
 	event MintingFinished();
 }
 
 /// @title ERC721 minting logic.
-/// @dev the ERC-165 identifier for this interface is 0x68ccfe89
-contract ERC721Mintable is Dummy, ERC165, ERC721MintableEvents {
+/// @dev the ERC-165 identifier for this interface is 0x476ff149
+contract ERC721UniqueMintable is Dummy, ERC165, ERC721UniqueMintableEvents {
 	/// @dev EVM selector for this function is: 0x05d2035b,
 	///  or in textual repr: mintingFinished()
 	function mintingFinished() public view returns (bool) {
@@ -417,41 +460,63 @@
 	}
 
 	/// @notice Function to mint token.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted NFT
-	/// @dev EVM selector for this function is: 0x40c10f19,
-	///  or in textual repr: mint(address,uint256)
-	function mint(address to, uint256 tokenId) public returns (bool) {
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x6a627842,
+	///  or in textual repr: mint(address)
+	function mint(address to) public returns (uint256) {
 		require(false, stub_error);
 		to;
-		tokenId;
 		dummy = 0;
-		return false;
+		return 0;
 	}
 
+	// /// @notice Function to mint token.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted NFT
+	// /// @dev EVM selector for this function is: 0x40c10f19,
+	// ///  or in textual repr: mint(address,uint256)
+	// function mint(address to, uint256 tokenId) public returns (bool) {
+	// 	require(false, stub_error);
+	// 	to;
+	// 	tokenId;
+	// 	dummy = 0;
+	// 	return false;
+	// }
+
 	/// @notice Function to mint token with the given tokenUri.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted NFT
 	/// @param tokenUri Token URI that would be stored in the NFT properties
-	/// @dev EVM selector for this function is: 0x50bb4e7f,
-	///  or in textual repr: mintWithTokenURI(address,uint256,string)
-	function mintWithTokenURI(
-		address to,
-		uint256 tokenId,
-		string memory tokenUri
-	) public returns (bool) {
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x45c17782,
+	///  or in textual repr: mintWithTokenURI(address,string)
+	function mintWithTokenURI(address to, string memory tokenUri) public returns (uint256) {
 		require(false, stub_error);
 		to;
-		tokenId;
 		tokenUri;
 		dummy = 0;
-		return false;
+		return 0;
 	}
 
+	// /// @notice Function to mint token with the given tokenUri.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted NFT
+	// /// @param tokenUri Token URI that would be stored in the NFT properties
+	// /// @dev EVM selector for this function is: 0x50bb4e7f,
+	// ///  or in textual repr: mintWithTokenURI(address,uint256,string)
+	// function mintWithTokenURI(address to, uint256 tokenId, string memory tokenUri) public returns (bool) {
+	// 	require(false, stub_error);
+	// 	to;
+	// 	tokenId;
+	// 	tokenUri;
+	// 	dummy = 0;
+	// 	return false;
+	// }
+
 	/// @dev Not implemented
 	/// @dev EVM selector for this function is: 0x7d64bcb4,
 	///  or in textual repr: finishMinting()
@@ -463,8 +528,26 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0xd74d154f
+/// @dev the ERC-165 identifier for this interface is 0x4468500d
 contract ERC721UniqueExtensions is Dummy, ERC165 {
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	/// @dev EVM selector for this function is: 0x06fdde03,
+	///  or in textual repr: name()
+	function name() public view returns (string memory) {
+		require(false, stub_error);
+		dummy;
+		return "";
+	}
+
+	/// @notice An abbreviated name for NFTs in this contract
+	/// @dev EVM selector for this function is: 0x95d89b41,
+	///  or in textual repr: symbol()
+	function symbol() public view returns (string memory) {
+		require(false, stub_error);
+		dummy;
+		return "";
+	}
+
 	/// @notice Transfer ownership of an NFT
 	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`
 	///  is the zero address. Throws if `tokenId` is not a valid NFT.
@@ -525,7 +608,7 @@
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
 	/// @dev EVM selector for this function is: 0x36543006,
 	///  or in textual repr: mintBulkWithTokenURI(address,(uint256,string)[])
-	function mintBulkWithTokenURI(address to, Tuple8[] memory tokens) public returns (bool) {
+	function mintBulkWithTokenURI(address to, Tuple6[] memory tokens) public returns (bool) {
 		require(false, stub_error);
 		to;
 		tokens;
@@ -535,7 +618,7 @@
 }
 
 /// @dev anonymous struct
-struct Tuple8 {
+struct Tuple6 {
 	uint256 field_0;
 	string field_1;
 }
@@ -579,48 +662,7 @@
 		return 0;
 	}
 }
-
-/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
-/// @dev See https://eips.ethereum.org/EIPS/eip-721
-/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
-contract ERC721Metadata is Dummy, ERC165 {
-	/// @notice A descriptive name for a collection of NFTs in this contract
-	/// @dev EVM selector for this function is: 0x06fdde03,
-	///  or in textual repr: name()
-	function name() public view returns (string memory) {
-		require(false, stub_error);
-		dummy;
-		return "";
-	}
-
-	/// @notice An abbreviated name for NFTs in this contract
-	/// @dev EVM selector for this function is: 0x95d89b41,
-	///  or in textual repr: symbol()
-	function symbol() public view returns (string memory) {
-		require(false, stub_error);
-		dummy;
-		return "";
-	}
 
-	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
-	///
-	/// @dev If the token has a `url` property and it is not empty, it is returned.
-	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
-	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
-	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
-	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
-	///
-	/// @return token's const_metadata
-	/// @dev EVM selector for this function is: 0xc87b56dd,
-	///  or in textual repr: tokenURI(uint256)
-	function tokenURI(uint256 tokenId) public view returns (string memory) {
-		require(false, stub_error);
-		tokenId;
-		dummy;
-		return "";
-	}
-}
-
 /// @dev inlined interface
 contract ERC721Events {
 	event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
@@ -766,11 +808,11 @@
 	Dummy,
 	ERC165,
 	ERC721,
-	ERC721Metadata,
 	ERC721Enumerable,
 	ERC721UniqueExtensions,
-	ERC721Mintable,
+	ERC721UniqueMintable,
 	ERC721Burnable,
+	ERC721Metadata,
 	Collection,
 	TokenProperties
 {}
modifiedpallets/proxy-rmrk-core/src/lib.rsdiffbeforeafterboth
before · pallets/proxy-rmrk-core/src/lib.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! # RMRK Core Proxy Pallet18//!19//! A pallet used as proxy for RMRK Core (<https://rmrk-team.github.io/rmrk-substrate/#/pallets/rmrk-core>).20//!21//! - [`Config`]22//! - [`Call`]23//! - [`Pallet`]24//!25//! ## Overview26//!27//! The RMRK Core Proxy pallet mirrors the functionality of RMRK Core,28//! binding its externalities to Unique's own underlying structure.29//! It is purposed to mimic RMRK Core exactly, allowing seamless integrations30//! of solutions based on RMRK.31//!32//! RMRK Core itself contains essential functionality for RMRK's nested and33//! multi-resourced NFTs.34//!35//! *Note*, that while RMRK itself is subject to active development and restructuring,36//! the proxy may be caught temporarily out of date.37//!38//! ### What is RMRK?39//!40//! RMRK is a set of NFT standards which compose several "NFT 2.0 lego" primitives.41//! Putting these legos together allows a user to create NFT systems of arbitrary complexity.42//!43//! Meaning, RMRK NFTs are dynamic, able to nest into each other and form a hierarchy,44//! make use of specific changeable and partially shared metadata in the form of resources,45//! and more.46//!47//! Visit RMRK documentation and repositories to learn more:48//! - Docs: <https://docs.rmrk.app/getting-started/>49//! - FAQ: <https://coda.io/@rmrk/faq>50//! - Substrate code repository: <https://github.com/rmrk-team/rmrk-substrate>51//! - RMRK specification repository: <https://github.com/rmrk-team/rmrk-spec>52//!53//! ## Terminology54//!55//! For more information on RMRK, see RMRK's own documentation.56//!57//! ### Intro to RMRK58//!59//! - **Resource:** Additional piece of metadata of an NFT usually serving to add60//! a piece of media on top of the root metadata (NFT's own), be it a different wing61//! on the root template bird or something entirely unrelated.62//!63//! - **Base:** A list of possible "components" - Parts, a combination of which can64//! be appended/equipped to/on an NFT.65//!66//! - **Part:** Something that, together with other Parts, can constitute an NFT.67//! Parts are defined in the Base to which they belong. Parts can be either68//! of the `slot` type or `fixed` type. Slots are intended for equippables.69//! Note that "part of something" and "Part of a Base" can be easily confused,70//! and so in this documentation these words are distinguished by the capital letter.71//!72//! - **Theme:** Named objects of variable => value pairs which get interpolated into73//! the Base's `themable` Parts. Themes can hold any value, but are often represented74//! in RMRK's examples as colors applied to visible Parts.75//!76//! ### Peculiarities in Unique77//!78//! - **Scoped properties:** Properties that are normally obscured from users.79//! Their purpose is to contain structured metadata that was not included in the Unique standard80//! for collections and tokens, meant to be operated on by proxies and other outliers.81//! Scoped property keys are prefixed with `some-scope:`, where `some-scope` is82//! an arbitrary keyword, like "rmrk". `:` is considered an unacceptable symbol in user-defined83//! properties, which, along with other safeguards, makes scoped ones impossible to tamper with.84//!85//! - **Auxiliary properties:** A slightly different structure of properties,86//! trading universality of use for more convenient storage, writes and access.87//! Meant to be inaccessible to end users.88//!89//! ## Proxy Implementation90//!91//! An external user is supposed to be able to utilize this proxy as they would92//! utilize RMRK, and get exactly the same results. Normally, Unique transactions93//! are off-limits to RMRK collections and tokens, and vice versa. However,94//! the information stored on chain can be freely interpreted by storage reads and Unique RPCs.95//!96//! ### ID Mapping97//!98//! RMRK's collections' IDs are counted independently of Unique's and start at 0.99//! Note that tokens' IDs still start at 1.100//! The collections themselves, as well as tokens, are stored as Unique collections,101//! and thus RMRK IDs are mapped to Unique IDs (but not vice versa).102//!103//! ### External/Internal Collection Insulation104//!105//! A Unique transaction cannot target collections purposed for RMRK,106//! and they are flagged as `external` to specify that. On the other hand,107//! due to the mapping, RMRK transactions and RPCs simply cannot reach Unique collections.108//!109//! ### Native Properties110//!111//! Many of RMRK's native parameters are stored as scoped properties of a collection112//! or an NFT on the chain. Scoped properties are prefixed with `rmrk:`, where `:`113//! is an unacceptable symbol in user-defined properties, which, along with other safeguards,114//! makes them impossible to tamper with.115//!116//! ### Collection and NFT Types, or Base, Parts and Themes Handling117//!118//! RMRK introduces the concept of a Base, which is a catalogue of Parts,119//! possible components of an NFT. Due to its similarity with the functionality120//! of a token collection, a Base is stored and handled as one, and the Base's Parts and Themes121//! are this collection's NFTs. See [`CollectionType`] and [`NftType`].122//!123//! ## Interface124//!125//! ### Dispatchables126//!127//! - `create_collection` - Create a new collection of NFTs.128//! - `destroy_collection` - Destroy a collection.129//! - `change_collection_issuer` - Change the issuer of a collection.130//! Analogous to Unique's collection's [`owner`](up_data_structs::Collection).131//! - `lock_collection` - "Lock" the collection and prevent new token creation. **Cannot be undone.**132//! - `mint_nft` - Mint an NFT in a specified collection.133//! - `burn_nft` - Burn an NFT, destroying it and its nested tokens.134//! - `send` - Transfer an NFT from an account/NFT A to another account/NFT B.135//! - `accept_nft` - Accept an NFT sent from another account to self or an owned NFT.136//! - `reject_nft` - Reject an NFT sent from another account to self or owned NFT and **burn it**.137//! - `accept_resource` - Accept the addition of a newly created pending resource to an existing NFT.138//! - `accept_resource_removal` - Accept the removal of a removal-pending resource from an NFT.139//! - `set_property` - Add or edit a custom user property of a token or a collection.140//! - `set_priority` - Set a different order of resource priorities for an NFT.141//! - `add_basic_resource` - Create and set/propose a basic resource for an NFT.142//! - `add_composable_resource` - Create and set/propose a composable resource for an NFT.143//! - `add_slot_resource` - Create and set/propose a slot resource for an NFT.144//! - `remove_resource` - Remove and erase a resource from an NFT.145146#![cfg_attr(not(feature = "std"), no_std)]147148use frame_support::{pallet_prelude::*, BoundedVec, dispatch::DispatchResult};149use frame_system::{pallet_prelude::*, ensure_signed};150use sp_runtime::{DispatchError, Permill, traits::StaticLookup};151use sp_std::{152	vec::Vec,153	collections::{btree_set::BTreeSet, btree_map::BTreeMap},154};155use up_data_structs::{*, mapping::TokenAddressMapping};156use pallet_common::{157	Pallet as PalletCommon, Error as CommonError, CollectionHandle, CommonCollectionOperations,158};159use pallet_nonfungible::{Pallet as PalletNft, NonfungibleHandle, TokenData};160use pallet_structure::{Pallet as PalletStructure, Error as StructureError};161use pallet_evm::account::CrossAccountId;162use core::convert::AsRef;163164pub use pallet::*;165166#[cfg(feature = "runtime-benchmarks")]167pub mod benchmarking;168pub mod misc;169pub mod property;170pub mod rpc;171pub mod weights;172173pub type SelfWeightOf<T> = <T as Config>::WeightInfo;174175use weights::WeightInfo;176use misc::*;177pub use property::*;178179use RmrkProperty::*;180181/// Maximum number of levels of depth in the token nesting tree.182pub const NESTING_BUDGET: u32 = 5;183184type PendingTarget = (CollectionId, TokenId);185type PendingChild = (RmrkCollectionId, RmrkNftId);186type PendingChildrenSet = BTreeSet<PendingChild>;187188type BasesMap = BTreeMap<RmrkBaseId, u32>;189190#[frame_support::pallet]191pub mod pallet {192	use super::*;193	use pallet_evm::account;194195	#[pallet::config]196	pub trait Config:197		frame_system::Config + pallet_common::Config + pallet_nonfungible::Config + account::Config198	{199		/// Overarching event type.200		type Event: From<Event<Self>> + IsType<<Self as frame_system::Config>::Event>;201202		/// The weight information of this pallet.203		type WeightInfo: WeightInfo;204	}205206	/// Latest yet-unused collection ID.207	#[pallet::storage]208	#[pallet::getter(fn collection_index)]209	pub type CollectionIndex<T: Config> = StorageValue<_, RmrkCollectionId, ValueQuery>;210211	/// Mapping from RMRK collection ID to Unique's.212	#[pallet::storage]213	pub type UniqueCollectionId<T: Config> =214		StorageMap<_, Twox64Concat, RmrkCollectionId, CollectionId, ValueQuery>;215216	#[pallet::pallet]217	#[pallet::generate_store(pub(super) trait Store)]218	pub struct Pallet<T>(_);219220	#[pallet::event]221	#[pallet::generate_deposit(pub(super) fn deposit_event)]222	pub enum Event<T: Config> {223		CollectionCreated {224			issuer: T::AccountId,225			collection_id: RmrkCollectionId,226		},227		CollectionDestroyed {228			issuer: T::AccountId,229			collection_id: RmrkCollectionId,230		},231		IssuerChanged {232			old_issuer: T::AccountId,233			new_issuer: T::AccountId,234			collection_id: RmrkCollectionId,235		},236		CollectionLocked {237			issuer: T::AccountId,238			collection_id: RmrkCollectionId,239		},240		NftMinted {241			owner: T::AccountId,242			collection_id: RmrkCollectionId,243			nft_id: RmrkNftId,244		},245		NFTBurned {246			owner: T::AccountId,247			nft_id: RmrkNftId,248		},249		NFTSent {250			sender: T::AccountId,251			recipient: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,252			collection_id: RmrkCollectionId,253			nft_id: RmrkNftId,254			approval_required: bool,255		},256		NFTAccepted {257			sender: T::AccountId,258			recipient: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,259			collection_id: RmrkCollectionId,260			nft_id: RmrkNftId,261		},262		NFTRejected {263			sender: T::AccountId,264			collection_id: RmrkCollectionId,265			nft_id: RmrkNftId,266		},267		PropertySet {268			collection_id: RmrkCollectionId,269			maybe_nft_id: Option<RmrkNftId>,270			key: RmrkKeyString,271			value: RmrkValueString,272		},273		ResourceAdded {274			nft_id: RmrkNftId,275			resource_id: RmrkResourceId,276		},277		ResourceRemoval {278			nft_id: RmrkNftId,279			resource_id: RmrkResourceId,280		},281		ResourceAccepted {282			nft_id: RmrkNftId,283			resource_id: RmrkResourceId,284		},285		ResourceRemovalAccepted {286			nft_id: RmrkNftId,287			resource_id: RmrkResourceId,288		},289		PrioritySet {290			collection_id: RmrkCollectionId,291			nft_id: RmrkNftId,292		},293	}294295	#[pallet::error]296	pub enum Error<T> {297		/* Unique proxy-specific events */298		/// Property of the type of RMRK collection could not be read successfully.299		CorruptedCollectionType,300		// NftTypeEncodeError,301		/// Too many symbols supplied as the property key. The maximum is [256](up_data_structs::MAX_PROPERTY_KEY_LENGTH).302		RmrkPropertyKeyIsTooLong,303		/// Too many bytes supplied as the property value. The maximum is [32768](up_data_structs::MAX_PROPERTY_VALUE_LENGTH).304		RmrkPropertyValueIsTooLong,305		/// Could not find a property by the supplied key.306		RmrkPropertyIsNotFound,307		/// Something went wrong when decoding encoded data from the storage.308		/// Perhaps, there was a wrong key supplied for the type, or the data was improperly stored.309		UnableToDecodeRmrkData,310311		/* RMRK compatible events */312		/// Only destroying collections without tokens is allowed.313		CollectionNotEmpty,314		/// Could not find an ID for a collection. It is likely there were too many collections created on the chain, causing an overflow.315		NoAvailableCollectionId,316		/// Token does not exist, or there is no suitable ID for it, likely too many tokens were created in a collection, causing an overflow.317		NoAvailableNftId,318		/// Collection does not exist, has a wrong type, or does not map to a Unique ID.319		CollectionUnknown,320		/// No permission to perform action.321		NoPermission,322		/// Token is marked as non-transferable, and thus cannot be transferred.323		NonTransferable,324		/// Too many tokens created in the collection, no new ones are allowed.325		CollectionFullOrLocked,326		/// No such resource found.327		ResourceDoesntExist,328		/// If an NFT is sent to a descendant, that would form a nesting loop, an ouroboros.329		/// Sending to self is redundant.330		CannotSendToDescendentOrSelf,331		/// Not the target owner of the sent NFT.332		CannotAcceptNonOwnedNft,333		/// Not the target owner of the sent NFT.334		CannotRejectNonOwnedNft,335		/// NFT was not sent and is not pending.336		CannotRejectNonPendingNft,337		/// Resource is not pending for the operation.338		ResourceNotPending,339		/// Could not find an ID for the resource. It is likely there were too many resources created on an NFT, causing an overflow.340		NoAvailableResourceId,341	}342343	#[pallet::call]344	impl<T: Config> Pallet<T> {345		// todo :refactor replace every collection_id with rmrk_collection_id (and nft_id) in arguments for uniformity?346347		/// Create a new collection of NFTs.348		///349		/// # Permissions:350		/// * Anyone - will be assigned as the issuer of the collection.351		///352		/// # Arguments:353		/// - `origin`: sender of the transaction354		/// - `metadata`: Metadata describing the collection, e.g. IPFS hash. Cannot be changed.355		/// - `max`: Optional maximum number of tokens.356		/// - `symbol`: UTF-8 string with token prefix, by which to represent the token in wallets and UIs.357		/// Analogous to Unique's [`token_prefix`](up_data_structs::Collection). Cannot be changed.358		#[pallet::weight(<SelfWeightOf<T>>::create_collection())]359		pub fn create_collection(360			origin: OriginFor<T>,361			metadata: RmrkString,362			max: Option<u32>,363			symbol: RmrkCollectionSymbol,364		) -> DispatchResult {365			let sender = ensure_signed(origin)?;366367			let limits = CollectionLimits {368				owner_can_transfer: Some(false),369				token_limit: max,370				..Default::default()371			};372373			let data = CreateCollectionData {374				limits: Some(limits),375				token_prefix: symbol376					.into_inner()377					.try_into()378					.map_err(|_| <CommonError<T>>::CollectionTokenPrefixLimitExceeded)?,379				permissions: Some(CollectionPermissions {380					nesting: Some(NestingPermissions {381						token_owner: true,382						collection_admin: false,383						restricted: None,384						#[cfg(feature = "runtime-benchmarks")]385						permissive: false,386					}),387					..Default::default()388				}),389				..Default::default()390			};391392			let unique_collection_id = Self::init_collection(393				T::CrossAccountId::from_sub(sender.clone()),394				data,395				[396					Self::encode_rmrk_property(Metadata, &metadata)?,397					Self::encode_rmrk_property(CollectionType, &misc::CollectionType::Regular)?,398				]399				.into_iter(),400			)?;401			let rmrk_collection_id = <CollectionIndex<T>>::get();402403			<UniqueCollectionId<T>>::insert(rmrk_collection_id, unique_collection_id);404405			<PalletCommon<T>>::set_scoped_collection_property(406				unique_collection_id,407				RMRK_SCOPE,408				Self::encode_rmrk_property(RmrkInternalCollectionId, &rmrk_collection_id)?,409			)?;410411			<CollectionIndex<T>>::mutate(|n| *n += 1);412413			Self::deposit_event(Event::CollectionCreated {414				issuer: sender,415				collection_id: rmrk_collection_id,416			});417418			Ok(())419		}420421		/// Destroy a collection.422		///423		/// Only empty collections can be destroyed. If it has any tokens, they must be burned first.424		///425		/// # Permissions:426		/// * Collection issuer427		///428		/// # Arguments:429		/// - `origin`: sender of the transaction430		/// - `collection_id`: RMRK ID of the collection to destroy.431		#[pallet::weight(<SelfWeightOf<T>>::destroy_collection())]432		pub fn destroy_collection(433			origin: OriginFor<T>,434			collection_id: RmrkCollectionId,435		) -> DispatchResult {436			let sender = ensure_signed(origin)?;437			let cross_sender = T::CrossAccountId::from_sub(sender.clone());438439			let collection = Self::get_typed_nft_collection(440				Self::unique_collection_id(collection_id)?,441				misc::CollectionType::Regular,442			)?;443			collection.check_is_external()?;444445			<PalletNft<T>>::destroy_collection(collection, &cross_sender)446				.map_err(Self::map_unique_err_to_proxy)?;447448			Self::deposit_event(Event::CollectionDestroyed {449				issuer: sender,450				collection_id,451			});452453			Ok(())454		}455456		/// Change the issuer of a collection. Analogous to Unique's collection's [`owner`](up_data_structs::Collection).457		///458		/// # Permissions:459		/// * Collection issuer460		///461		/// # Arguments:462		/// - `origin`: sender of the transaction463		/// - `collection_id`: RMRK collection ID to change the issuer of.464		/// - `new_issuer`: Collection's new issuer.465		#[pallet::weight(<SelfWeightOf<T>>::change_collection_issuer())]466		pub fn change_collection_issuer(467			origin: OriginFor<T>,468			collection_id: RmrkCollectionId,469			new_issuer: <T::Lookup as StaticLookup>::Source,470		) -> DispatchResult {471			let sender = ensure_signed(origin)?;472473			let collection = Self::get_nft_collection(Self::unique_collection_id(collection_id)?)?;474			collection.check_is_external()?;475476			let new_issuer = T::Lookup::lookup(new_issuer)?;477478			Self::change_collection_owner(479				Self::unique_collection_id(collection_id)?,480				misc::CollectionType::Regular,481				sender.clone(),482				new_issuer.clone(),483			)?;484485			Self::deposit_event(Event::IssuerChanged {486				old_issuer: sender,487				new_issuer,488				collection_id,489			});490491			Ok(())492		}493494		/// "Lock" the collection and prevent new token creation. Cannot be undone.495		///496		/// # Permissions:497		/// * Collection issuer498		///499		/// # Arguments:500		/// - `origin`: sender of the transaction501		/// - `collection_id`: RMRK ID of the collection to lock.502		#[pallet::weight(<SelfWeightOf<T>>::lock_collection())]503		pub fn lock_collection(504			origin: OriginFor<T>,505			collection_id: RmrkCollectionId,506		) -> DispatchResult {507			let sender = ensure_signed(origin)?;508			let cross_sender = T::CrossAccountId::from_sub(sender.clone());509510			let collection = Self::get_typed_nft_collection(511				Self::unique_collection_id(collection_id)?,512				misc::CollectionType::Regular,513			)?;514			collection.check_is_external()?;515516			Self::check_collection_owner(&collection, &cross_sender)?;517518			let token_count = collection.total_supply();519520			let mut collection = collection.into_inner();521			collection.limits.token_limit = Some(token_count);522			collection.save()?;523524			Self::deposit_event(Event::CollectionLocked {525				issuer: sender,526				collection_id,527			});528529			Ok(())530		}531532		/// Mint an NFT in a specified collection.533		///534		/// # Permissions:535		/// * Collection issuer536		///537		/// # Arguments:538		/// - `origin`: sender of the transaction539		/// - `owner`: Owner account of the NFT. If set to None, defaults to the sender (collection issuer).540		/// - `collection_id`: RMRK collection ID for the NFT to be minted within. Cannot be changed.541		/// - `recipient`: Receiver account of the royalty. Has no effect if the `royalty_amount` is not set. Cannot be changed.542		/// - `royalty_amount`: Optional permillage reward from each trade for the `recipient`. Cannot be changed.543		/// - `metadata`: Arbitrary data about an NFT, e.g. IPFS hash. Cannot be changed.544		/// - `transferable`: Can this NFT be transferred? Cannot be changed.545		/// - `resources`: Resource data to be added to the NFT immediately after minting.546		#[pallet::weight(<SelfWeightOf<T>>::mint_nft(resources.as_ref().map(|r| r.len() as u32).unwrap_or(0)))]547		pub fn mint_nft(548			origin: OriginFor<T>,549			owner: Option<T::AccountId>,550			collection_id: RmrkCollectionId,551			recipient: Option<T::AccountId>,552			royalty_amount: Option<Permill>,553			metadata: RmrkString,554			transferable: bool,555			resources: Option<BoundedVec<RmrkResourceTypes, MaxResourcesOnMint>>,556		) -> DispatchResult {557			let sender = ensure_signed(origin)?;558			let cross_sender = T::CrossAccountId::from_sub(sender.clone());559560			let owner = owner.unwrap_or(sender.clone());561			let cross_owner = T::CrossAccountId::from_sub(owner.clone());562563			let collection = Self::get_typed_nft_collection(564				Self::unique_collection_id(collection_id)?,565				misc::CollectionType::Regular,566			)?;567			collection.check_is_external()?;568569			let royalty_info = royalty_amount.map(|amount| rmrk_traits::RoyaltyInfo {570				recipient: recipient.unwrap_or_else(|| owner.clone()),571				amount,572			});573574			let nft_id = Self::create_nft(575				&cross_sender,576				&cross_owner,577				&collection,578				[579					Self::encode_rmrk_property(TokenType, &NftType::Regular)?,580					Self::encode_rmrk_property(Transferable, &transferable)?,581					Self::encode_rmrk_property(PendingNftAccept, &None::<PendingTarget>)?,582					Self::encode_rmrk_property(RoyaltyInfo, &royalty_info)?,583					Self::encode_rmrk_property(Metadata, &metadata)?,584					Self::encode_rmrk_property(Equipped, &false)?,585					Self::encode_rmrk_property(ResourcePriorities, &<Vec<u8>>::new())?,586					Self::encode_rmrk_property(NextResourceId, &(0 as RmrkResourceId))?,587					Self::encode_rmrk_property(PendingChildren, &PendingChildrenSet::new())?,588					Self::encode_rmrk_property(AssociatedBases, &BasesMap::new())?,589				]590				.into_iter(),591			)592			.map_err(|err| match err {593				DispatchError::Arithmetic(_) => <Error<T>>::NoAvailableNftId.into(),594				err => Self::map_unique_err_to_proxy(err),595			})?;596597			if let Some(resources) = resources {598				for resource in resources {599					Self::resource_add(sender.clone(), collection.id, nft_id, resource)?;600				}601			}602603			Self::deposit_event(Event::NftMinted {604				owner,605				collection_id,606				nft_id: nft_id.0,607			});608609			Ok(())610		}611612		/// Burn an NFT, destroying it and its nested tokens up to the specified limit.613		/// If the burning budget is exceeded, the transaction is reverted.614		///615		/// This is the way to burn a nested token as well.616		///617		/// For more information, see [`burn_recursively`](pallet_nonfungible::pallet::Pallet::burn_recursively).618		///619		/// # Permissions:620		/// * Token owner621		///622		/// # Arguments:623		/// - `origin`: sender of the transaction624		/// - `collection_id`: RMRK ID of the collection in which the NFT to burn belongs to.625		/// - `nft_id`: ID of the NFT to be destroyed.626		/// - `max_burns`: Maximum number of tokens to burn, assuming nesting. The transaction627		/// is reverted if there are more tokens to burn in the nesting tree than this number.628		/// This is primarily a mechanism of transaction weight control.629		#[pallet::weight(<SelfWeightOf<T>>::burn_nft(*max_burns))]630		pub fn burn_nft(631			origin: OriginFor<T>,632			collection_id: RmrkCollectionId,633			nft_id: RmrkNftId,634			max_burns: u32,635		) -> DispatchResult {636			let sender = ensure_signed(origin)?;637			let cross_sender = T::CrossAccountId::from_sub(sender.clone());638639			let collection = Self::get_typed_nft_collection(640				Self::unique_collection_id(collection_id)?,641				misc::CollectionType::Regular,642			)?;643			collection.check_is_external()?;644645			Self::destroy_nft(646				cross_sender,647				Self::unique_collection_id(collection_id)?,648				nft_id.into(),649				max_burns,650				<Error<T>>::NoPermission,651			)652			.map_err(|err| Self::map_unique_err_to_proxy(err.error))?;653654			Self::deposit_event(Event::NFTBurned {655				owner: sender,656				nft_id,657			});658659			Ok(())660		}661662		/// Transfer an NFT from an account/NFT A to another account/NFT B.663		/// The token must be transferable. Nesting cannot occur deeper than the [`NESTING_BUDGET`].664		///665		/// If the target owner is an NFT owned by another account, then the NFT will enter666		/// the pending state and will have to be accepted by the other account.667		///668		/// # Permissions:669		/// - Token owner670		///671		/// # Arguments:672		/// - `origin`: sender of the transaction673		/// - `rmrk_collection_id`: RMRK ID of the collection of the NFT to be transferred.674		/// - `rmrk_nft_id`: ID of the NFT to be transferred.675		/// - `new_owner`: New owner of the nft which can be either an account or a NFT.676		#[pallet::weight(<SelfWeightOf<T>>::send())]677		pub fn send(678			origin: OriginFor<T>,679			rmrk_collection_id: RmrkCollectionId,680			rmrk_nft_id: RmrkNftId,681			new_owner: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,682		) -> DispatchResult {683			let sender = ensure_signed(origin.clone())?;684			let cross_sender = T::CrossAccountId::from_sub(sender.clone());685686			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;687			let nft_id = rmrk_nft_id.into();688689			let collection =690				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;691			collection.check_is_external()?;692693			let token_data =694				<TokenData<T>>::get((collection_id, nft_id)).ok_or(<Error<T>>::NoAvailableNftId)?;695696			let from = token_data.owner;697698			ensure!(699				Self::get_nft_property_decoded(collection_id, nft_id, RmrkProperty::Transferable)?,700				<Error<T>>::NonTransferable701			);702703			ensure!(704				Self::get_nft_property_decoded::<Option<PendingTarget>>(705					collection_id,706					nft_id,707					RmrkProperty::PendingNftAccept708				)?709				.is_none(),710				<Error<T>>::NoPermission711			);712713			let target_owner;714			let approval_required;715716			match new_owner {717				RmrkAccountIdOrCollectionNftTuple::AccountId(ref account_id) => {718					target_owner = T::CrossAccountId::from_sub(account_id.clone());719					approval_required = false;720				}721				RmrkAccountIdOrCollectionNftTuple::CollectionAndNftTuple(722					target_collection_id,723					target_nft_id,724				) => {725					let target_collection_id = Self::unique_collection_id(target_collection_id)?;726727					let target_nft_budget = budget::Value::new(NESTING_BUDGET);728729					let target_nft_owner = <PalletStructure<T>>::get_checked_topmost_owner(730						target_collection_id,731						target_nft_id.into(),732						Some((collection_id, nft_id)),733						&target_nft_budget,734					)735					.map_err(Self::map_unique_err_to_proxy)?;736737					approval_required = cross_sender != target_nft_owner;738739					if approval_required {740						target_owner = target_nft_owner;741742						<PalletNft<T>>::set_scoped_token_property(743							collection.id,744							nft_id,745							RMRK_SCOPE,746							Self::encode_rmrk_property::<Option<PendingTarget>>(747								PendingNftAccept,748								&Some((target_collection_id, target_nft_id.into())),749							)?,750						)?;751752						Self::insert_pending_child(753							(target_collection_id, target_nft_id.into()),754							(rmrk_collection_id, rmrk_nft_id),755						)?;756					} else {757						target_owner = T::CrossTokenAddressMapping::token_to_address(758							target_collection_id,759							target_nft_id.into(),760						);761					}762				}763			}764765			let src_nft_budget = budget::Value::new(NESTING_BUDGET);766767			<PalletNft<T>>::transfer_from(768				&collection,769				&cross_sender,770				&from,771				&target_owner,772				nft_id,773				&src_nft_budget,774			)775			.map_err(Self::map_unique_err_to_proxy)?;776777			Self::deposit_event(Event::NFTSent {778				sender,779				recipient: new_owner,780				collection_id: rmrk_collection_id,781				nft_id: rmrk_nft_id,782				approval_required,783			});784785			Ok(())786		}787788		/// Accept an NFT sent from another account to self or an owned NFT.789		///790		/// The NFT in question must be pending, and, thus, be [sent](`Pallet::send`) first.791		///792		/// # Permissions:793		/// - Token-owner-to-be794		///795		/// # Arguments:796		/// - `origin`: sender of the transaction797		/// - `rmrk_collection_id`: RMRK collection ID of the NFT to be accepted.798		/// - `rmrk_nft_id`: ID of the NFT to be accepted.799		/// - `new_owner`: Either the sender's account ID or a sender-owned NFT,800		/// whichever the accepted NFT was sent to.801		#[pallet::weight(<SelfWeightOf<T>>::accept_nft())]802		pub fn accept_nft(803			origin: OriginFor<T>,804			rmrk_collection_id: RmrkCollectionId,805			rmrk_nft_id: RmrkNftId,806			new_owner: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,807		) -> DispatchResult {808			let sender = ensure_signed(origin.clone())?;809			let cross_sender = T::CrossAccountId::from_sub(sender.clone());810811			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;812			let nft_id = rmrk_nft_id.into();813814			let collection =815				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;816			collection.check_is_external()?;817818			let new_cross_owner = match new_owner {819				RmrkAccountIdOrCollectionNftTuple::AccountId(ref account_id) => {820					T::CrossAccountId::from_sub(account_id.clone())821				}822				RmrkAccountIdOrCollectionNftTuple::CollectionAndNftTuple(823					target_collection_id,824					target_nft_id,825				) => {826					let target_collection_id = Self::unique_collection_id(target_collection_id)?;827828					T::CrossTokenAddressMapping::token_to_address(829						target_collection_id,830						TokenId(target_nft_id),831					)832				}833			};834835			let budget = budget::Value::new(NESTING_BUDGET);836837			<PalletNft<T>>::transfer(838				&collection,839				&cross_sender,840				&new_cross_owner,841				nft_id,842				&budget,843			)844			.map_err(|err| {845				if err == <CommonError<T>>::UserIsNotAllowedToNest.into() {846					<Error<T>>::CannotAcceptNonOwnedNft.into()847				} else {848					Self::map_unique_err_to_proxy(err)849				}850			})?;851852			let pending_target = Self::get_nft_property_decoded::<Option<PendingTarget>>(853				collection_id,854				nft_id,855				RmrkProperty::PendingNftAccept,856			)?;857858			if let Some(pending_target) = pending_target {859				Self::remove_pending_child(pending_target, (rmrk_collection_id, rmrk_nft_id))?;860861				<PalletNft<T>>::set_scoped_token_property(862					collection.id,863					nft_id,864					RMRK_SCOPE,865					Self::encode_rmrk_property(PendingNftAccept, &None::<PendingTarget>)?,866				)?;867			}868869			Self::deposit_event(Event::NFTAccepted {870				sender,871				recipient: new_owner,872				collection_id: rmrk_collection_id,873				nft_id: rmrk_nft_id,874			});875876			Ok(())877		}878879		/// Reject an NFT sent from another account to self or owned NFT.880		/// The NFT in question will not be sent back and burnt instead.881		///882		/// The NFT in question must be pending, and, thus, be [sent](`Pallet::send`) first.883		///884		/// # Permissions:885		/// - Token-owner-to-be-not886		///887		/// # Arguments:888		/// - `origin`: sender of the transaction889		/// - `rmrk_collection_id`: RMRK ID of the NFT to be rejected.890		/// - `rmrk_nft_id`: ID of the NFT to be rejected.891		#[pallet::weight(<SelfWeightOf<T>>::reject_nft())]892		pub fn reject_nft(893			origin: OriginFor<T>,894			rmrk_collection_id: RmrkCollectionId,895			rmrk_nft_id: RmrkNftId,896		) -> DispatchResult {897			let sender = ensure_signed(origin)?;898			let cross_sender = T::CrossAccountId::from_sub(sender.clone());899900			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;901			let nft_id = rmrk_nft_id.into();902903			let collection =904				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;905			collection.check_is_external()?;906907			ensure!(908				<TokenData<T>>::get((collection_id, nft_id)).is_some(),909				<Error<T>>::NoAvailableNftId910			);911912			let pending_target = Self::get_nft_property_decoded::<Option<PendingTarget>>(913				collection_id,914				nft_id,915				RmrkProperty::PendingNftAccept,916			)?;917918			match pending_target {919				Some(pending_target) => {920					Self::remove_pending_child(pending_target, (rmrk_collection_id, rmrk_nft_id))?921				}922				None => return Err(<Error<T>>::CannotRejectNonPendingNft.into()),923			}924925			Self::destroy_nft(926				cross_sender,927				collection_id,928				nft_id,929				NESTING_BUDGET,930				<Error<T>>::CannotRejectNonOwnedNft,931			)932			.map_err(|err| Self::map_unique_err_to_proxy(err.error))?;933934			Self::deposit_event(Event::NFTRejected {935				sender,936				collection_id: rmrk_collection_id,937				nft_id: rmrk_nft_id,938			});939940			Ok(())941		}942943		/// Accept the addition of a newly created pending resource to an existing NFT.944		///945		/// This transaction is needed when a resource is created and assigned to an NFT946		/// by a non-owner, i.e. the collection issuer, with one of the947		/// [`add_...` transactions](Pallet::add_basic_resource).948		///949		/// # Permissions:950		/// - Token owner951		///952		/// # Arguments:953		/// - `origin`: sender of the transaction954		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.955		/// - `rmrk_nft_id`: ID of the NFT with a pending resource to be accepted.956		/// - `resource_id`: ID of the newly created pending resource.957		/// accept the addition of a new resource to an existing NFT958		#[pallet::weight(<SelfWeightOf<T>>::accept_resource())]959		pub fn accept_resource(960			origin: OriginFor<T>,961			rmrk_collection_id: RmrkCollectionId,962			rmrk_nft_id: RmrkNftId,963			resource_id: RmrkResourceId,964		) -> DispatchResult {965			let sender = ensure_signed(origin)?;966			let cross_sender = T::CrossAccountId::from_sub(sender);967968			let collection_id = Self::unique_collection_id(rmrk_collection_id)969				.map_err(|_| <Error<T>>::ResourceDoesntExist)?;970			let collection =971				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;972			collection.check_is_external()?;973974			let nft_id = rmrk_nft_id.into();975976			let budget = budget::Value::new(NESTING_BUDGET);977978			let nft_owner =979				<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)980					.map_err(|_| <Error<T>>::ResourceDoesntExist)?;981982			Self::try_mutate_resource_info(collection_id, nft_id, resource_id, |res| {983				ensure!(res.pending, <Error<T>>::ResourceNotPending);984				ensure!(cross_sender == nft_owner, <Error<T>>::NoPermission);985986				res.pending = false;987988				Ok(())989			})?;990991			Self::deposit_event(Event::<T>::ResourceAccepted {992				nft_id: rmrk_nft_id,993				resource_id,994			});995996			Ok(())997		}998999		/// Accept the removal of a removal-pending resource from an NFT.1000		///1001		/// This transaction is needed when a non-owner, i.e. the collection issuer,1002		/// requests a [removal](`Pallet::remove_resource`) of a resource from an NFT.1003		///1004		/// # Permissions:1005		/// - Token owner1006		///1007		/// # Arguments:1008		/// - `origin`: sender of the transaction1009		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1010		/// - `rmrk_nft_id`: ID of the NFT with a resource to be removed.1011		/// - `resource_id`: ID of the removal-pending resource.1012		#[pallet::weight(<SelfWeightOf<T>>::accept_resource_removal())]1013		pub fn accept_resource_removal(1014			origin: OriginFor<T>,1015			rmrk_collection_id: RmrkCollectionId,1016			rmrk_nft_id: RmrkNftId,1017			resource_id: RmrkResourceId,1018		) -> DispatchResult {1019			let sender = ensure_signed(origin)?;1020			let cross_sender = T::CrossAccountId::from_sub(sender);10211022			let collection_id = Self::unique_collection_id(rmrk_collection_id)1023				.map_err(|_| <Error<T>>::ResourceDoesntExist)?;1024			let collection =1025				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1026			collection.check_is_external()?;10271028			let nft_id = rmrk_nft_id.into();10291030			let budget = budget::Value::new(NESTING_BUDGET);10311032			let nft_owner =1033				<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)1034					.map_err(|_| <Error<T>>::ResourceDoesntExist)?;10351036			ensure!(cross_sender == nft_owner, <Error<T>>::NoPermission);10371038			let resource_id_key = Self::get_scoped_property_key(ResourceId(resource_id))?;10391040			let resource_info = <PalletNft<T>>::token_aux_property((1041				collection_id,1042				nft_id,1043				RMRK_SCOPE,1044				resource_id_key.clone(),1045			))1046			.ok_or(<Error<T>>::ResourceDoesntExist)?;10471048			let resource_info: RmrkResourceInfo = Self::decode_property_value(&resource_info)?;10491050			ensure!(1051				resource_info.pending_removal,1052				<Error<T>>::ResourceNotPending1053			);10541055			<PalletNft<T>>::remove_token_aux_property(1056				collection_id,1057				nft_id,1058				RMRK_SCOPE,1059				resource_id_key,1060			);10611062			if let RmrkResourceTypes::Composable(resource) = resource_info.resource {1063				let base_id = resource.base;10641065				Self::remove_associated_base_id(collection_id, nft_id, base_id)?;1066			}10671068			Self::deposit_event(Event::<T>::ResourceRemovalAccepted {1069				nft_id: rmrk_nft_id,1070				resource_id,1071			});10721073			Ok(())1074		}10751076		/// Add or edit a custom user property, a key-value pair, describing the metadata1077		/// of a token or a collection, on either one of these.1078		///1079		/// Note that in this proxy implementation many details regarding RMRK are stored1080		/// as scoped properties prefixed with "rmrk:", normally inaccessible1081		/// to external transactions and RPCs.1082		///1083		/// # Permissions:1084		/// - Collection issuer - in case of collection property1085		/// - Token owner - in case of NFT property1086		///1087		/// # Arguments:1088		/// - `origin`: sender of the transaction1089		/// - `rmrk_collection_id`: RMRK collection ID.1090		/// - `maybe_nft_id`: Optional ID of the NFT. If left empty, then the property is set for the collection.1091		/// - `key`: Key of the custom property to be referenced by.1092		/// - `value`: Value of the custom property to be stored.1093		#[pallet::weight(<SelfWeightOf<T>>::set_property())]1094		pub fn set_property(1095			origin: OriginFor<T>,1096			#[pallet::compact] rmrk_collection_id: RmrkCollectionId,1097			maybe_nft_id: Option<RmrkNftId>,1098			key: RmrkKeyString,1099			value: RmrkValueString,1100		) -> DispatchResult {1101			let sender = ensure_signed(origin)?;1102			let sender = T::CrossAccountId::from_sub(sender);11031104			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1105			let collection =1106				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1107			collection.check_is_external()?;11081109			let budget = budget::Value::new(NESTING_BUDGET);11101111			match maybe_nft_id {1112				Some(nft_id) => {1113					let token_id: TokenId = nft_id.into();11141115					Self::ensure_nft_type(collection_id, token_id, NftType::Regular)?;1116					Self::ensure_nft_owner(collection_id, token_id, &sender, &budget)?;11171118					<PalletNft<T>>::set_scoped_token_property(1119						collection_id,1120						token_id,1121						RMRK_SCOPE,1122						Self::encode_rmrk_property(UserProperty(key.as_slice()), &value)?,1123					)?;1124				}1125				None => {1126					let collection = Self::get_typed_nft_collection(1127						collection_id,1128						misc::CollectionType::Regular,1129					)?;11301131					Self::check_collection_owner(&collection, &sender)?;11321133					<PalletCommon<T>>::set_scoped_collection_property(1134						collection_id,1135						RMRK_SCOPE,1136						Self::encode_rmrk_property(UserProperty(key.as_slice()), &value)?,1137					)?;1138				}1139			}11401141			Self::deposit_event(Event::PropertySet {1142				collection_id: rmrk_collection_id,1143				maybe_nft_id,1144				key,1145				value,1146			});11471148			Ok(())1149		}11501151		/// Set a different order of resource priorities for an NFT. Priorities can be used,1152		/// for example, for order of rendering.1153		///1154		/// Note that the priorities are not updated automatically, and are an empty vector1155		/// by default. There is no pre-set definition for the order to be particular,1156		/// it can be interpreted arbitrarily use-case by use-case.1157		///1158		/// # Permissions:1159		/// - Token owner1160		///1161		/// # Arguments:1162		/// - `origin`: sender of the transaction1163		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1164		/// - `rmrk_nft_id`: ID of the NFT to rearrange resource priorities for.1165		/// - `priorities`: Ordered vector of resource IDs.1166		#[pallet::weight(<SelfWeightOf<T>>::set_priority())]1167		pub fn set_priority(1168			origin: OriginFor<T>,1169			rmrk_collection_id: RmrkCollectionId,1170			rmrk_nft_id: RmrkNftId,1171			priorities: BoundedVec<RmrkResourceId, RmrkMaxPriorities>,1172		) -> DispatchResult {1173			let sender = ensure_signed(origin)?;1174			let sender = T::CrossAccountId::from_sub(sender);11751176			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1177			let nft_id = rmrk_nft_id.into();11781179			let collection =1180				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1181			collection.check_is_external()?;11821183			let budget = budget::Value::new(NESTING_BUDGET);11841185			Self::ensure_nft_type(collection_id, nft_id, NftType::Regular)?;1186			Self::ensure_nft_owner(collection_id, nft_id, &sender, &budget)?;11871188			<PalletNft<T>>::set_scoped_token_property(1189				collection_id,1190				nft_id,1191				RMRK_SCOPE,1192				Self::encode_rmrk_property(ResourcePriorities, &priorities.into_inner())?,1193			)?;11941195			Self::deposit_event(Event::<T>::PrioritySet {1196				collection_id: rmrk_collection_id,1197				nft_id: rmrk_nft_id,1198			});11991200			Ok(())1201		}12021203		/// Create and set/propose a basic resource for an NFT.1204		///1205		/// A basic resource is the simplest, lacking a Base and anything that comes with it.1206		/// See RMRK docs for more information and examples.1207		///1208		/// # Permissions:1209		/// - Collection issuer - if not the token owner, adding the resource will warrant1210		/// the owner's [acceptance](Pallet::accept_resource).1211		///1212		/// # Arguments:1213		/// - `origin`: sender of the transaction1214		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1215		/// - `nft_id`: ID of the NFT to assign a resource to.1216		/// - `resource`: Data of the resource to be created.1217		#[pallet::weight(<SelfWeightOf<T>>::add_basic_resource())]1218		pub fn add_basic_resource(1219			origin: OriginFor<T>,1220			rmrk_collection_id: RmrkCollectionId,1221			nft_id: RmrkNftId,1222			resource: RmrkBasicResource,1223		) -> DispatchResult {1224			let sender = ensure_signed(origin.clone())?;12251226			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1227			let collection =1228				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1229			collection.check_is_external()?;12301231			let resource_id = Self::resource_add(1232				sender,1233				collection_id,1234				nft_id.into(),1235				RmrkResourceTypes::Basic(resource),1236			)?;12371238			Self::deposit_event(Event::ResourceAdded {1239				nft_id,1240				resource_id,1241			});1242			Ok(())1243		}12441245		/// Create and set/propose a composable resource for an NFT.1246		///1247		/// A composable resource links to a Base and has a subset of its Parts it is composed of.1248		/// See RMRK docs for more information and examples.1249		///1250		/// # Permissions:1251		/// - Collection issuer - if not the token owner, adding the resource will warrant1252		/// the owner's [acceptance](Pallet::accept_resource).1253		///1254		/// # Arguments:1255		/// - `origin`: sender of the transaction1256		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1257		/// - `nft_id`: ID of the NFT to assign a resource to.1258		/// - `resource`: Data of the resource to be created.1259		#[pallet::weight(<SelfWeightOf<T>>::add_composable_resource())]1260		pub fn add_composable_resource(1261			origin: OriginFor<T>,1262			rmrk_collection_id: RmrkCollectionId,1263			nft_id: RmrkNftId,1264			resource: RmrkComposableResource,1265		) -> DispatchResult {1266			let sender = ensure_signed(origin.clone())?;12671268			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1269			let collection =1270				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1271			collection.check_is_external()?;12721273			let base_id = resource.base;12741275			let resource_id = Self::resource_add(1276				sender,1277				collection_id,1278				nft_id.into(),1279				RmrkResourceTypes::Composable(resource),1280			)?;12811282			<PalletNft<T>>::try_mutate_token_aux_property(1283				collection_id,1284				nft_id.into(),1285				RMRK_SCOPE,1286				Self::get_scoped_property_key(AssociatedBases)?,1287				|value| -> DispatchResult {1288					let mut bases: BasesMap = match value {1289						Some(value) => Self::decode_property_value(value)?,1290						None => BasesMap::new(),1291					};12921293					*bases.entry(base_id).or_insert(0) += 1;12941295					*value = Some(Self::encode_property_value(&bases)?);1296					Ok(())1297				},1298			)?;12991300			Self::deposit_event(Event::ResourceAdded {1301				nft_id,1302				resource_id,1303			});1304			Ok(())1305		}13061307		/// Create and set/propose a slot resource for an NFT.1308		///1309		/// A slot resource links to a Base and a slot ID in it which it can fit into.1310		/// See RMRK docs for more information and examples.1311		///1312		/// # Permissions:1313		/// - Collection issuer - if not the token owner, adding the resource will warrant1314		/// the owner's [acceptance](Pallet::accept_resource).1315		///1316		/// # Arguments:1317		/// - `origin`: sender of the transaction1318		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1319		/// - `nft_id`: ID of the NFT to assign a resource to.1320		/// - `resource`: Data of the resource to be created.1321		#[pallet::weight(<SelfWeightOf<T>>::add_slot_resource())]1322		pub fn add_slot_resource(1323			origin: OriginFor<T>,1324			rmrk_collection_id: RmrkCollectionId,1325			nft_id: RmrkNftId,1326			resource: RmrkSlotResource,1327		) -> DispatchResult {1328			let sender = ensure_signed(origin.clone())?;13291330			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1331			let collection =1332				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1333			collection.check_is_external()?;13341335			let resource_id = Self::resource_add(1336				sender,1337				collection_id,1338				nft_id.into(),1339				RmrkResourceTypes::Slot(resource),1340			)?;13411342			Self::deposit_event(Event::ResourceAdded {1343				nft_id,1344				resource_id,1345			});1346			Ok(())1347		}13481349		/// Remove and erase a resource from an NFT.1350		///1351		/// If the sender does not own the NFT, then it will be pending confirmation,1352		/// and will have to be [accepted](Pallet::accept_resource_removal) by the token owner.1353		///1354		/// # Permissions1355		/// - Collection issuer1356		///1357		/// # Arguments1358		/// - `origin`: sender of the transaction1359		/// - `rmrk_collection_id`: RMRK ID of a collection to which the NFT making use of the resource belongs to.1360		/// - `nft_id`: ID of the NFT with a resource to be removed.1361		/// - `resource_id`: ID of the resource to be removed.1362		#[pallet::weight(<SelfWeightOf<T>>::remove_resource())]1363		pub fn remove_resource(1364			origin: OriginFor<T>,1365			rmrk_collection_id: RmrkCollectionId,1366			nft_id: RmrkNftId,1367			resource_id: RmrkResourceId,1368		) -> DispatchResult {1369			let sender = ensure_signed(origin.clone())?;13701371			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1372			let collection =1373				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1374			collection.check_is_external()?;13751376			Self::resource_remove(sender, collection_id, nft_id.into(), resource_id)?;13771378			Self::deposit_event(Event::ResourceRemoval {1379				nft_id,1380				resource_id,1381			});1382			Ok(())1383		}1384	}1385}13861387impl<T: Config> Pallet<T> {1388	/// Transform one of possible RMRK keys into a byte key with a RMRK scope.1389	pub fn get_scoped_property_key(rmrk_key: RmrkProperty) -> Result<PropertyKey, DispatchError> {1390		let key = rmrk_key.to_key::<T>()?;13911392		let scoped_key = RMRK_SCOPE1393			.apply(key)1394			.map_err(|_| <Error<T>>::RmrkPropertyKeyIsTooLong)?;13951396		Ok(scoped_key)1397	}13981399	/// Form a Unique property, transforming a RMRK key into bytes (without assigning the scope yet)1400	/// and encoding the value from an arbitrary type into bytes.1401	pub fn encode_rmrk_property<E: Encode>(1402		rmrk_key: RmrkProperty,1403		value: &E,1404	) -> Result<Property, DispatchError> {1405		let key = rmrk_key.to_key::<T>()?;14061407		let value = Self::encode_property_value(value)?;14081409		let property = Property { key, value };14101411		Ok(property)1412	}14131414	/// Encode property value from an arbitrary type into bytes for storage.1415	pub fn encode_property_value<E: Encode, S: Get<u32>>(1416		value: &E,1417	) -> Result<BoundedBytes<S>, DispatchError> {1418		let value = value1419			.encode()1420			.try_into()1421			.map_err(|_| <Error<T>>::RmrkPropertyValueIsTooLong)?;14221423		Ok(value)1424	}14251426	/// Decode property value from bytes into an arbitrary type.1427	pub fn decode_property_value<D: Decode, S: Get<u32>>(1428		vec: &BoundedBytes<S>,1429	) -> Result<D, DispatchError> {1430		vec.decode()1431			.map_err(|_| <Error<T>>::UnableToDecodeRmrkData.into())1432	}14331434	/// Change the limit of a property value byte vector.1435	pub fn rebind<L, S>(vec: &BoundedVec<u8, L>) -> Result<BoundedVec<u8, S>, DispatchError>1436	where1437		BoundedVec<u8, S>: TryFrom<Vec<u8>>,1438	{1439		vec.rebind()1440			.map_err(|_| <Error<T>>::RmrkPropertyValueIsTooLong.into())1441	}14421443	/// Initialize a new NFT collection with certain RMRK-scoped properties.1444	///1445	/// See [`init_collection`](pallet_nonfungible::pallet::Pallet::init_collection) for more details.1446	fn init_collection(1447		sender: T::CrossAccountId,1448		data: CreateCollectionData<T::AccountId>,1449		properties: impl Iterator<Item = Property>,1450	) -> Result<CollectionId, DispatchError> {1451		let collection_id = <PalletNft<T>>::init_collection(sender.clone(), sender, data, true);14521453		if let Err(DispatchError::Arithmetic(_)) = &collection_id {1454			return Err(<Error<T>>::NoAvailableCollectionId.into());1455		}14561457		<PalletCommon<T>>::set_scoped_collection_properties(1458			collection_id?,1459			RMRK_SCOPE,1460			properties,1461		)?;14621463		collection_id1464	}14651466	/// Mint a new NFT with certain RMRK-scoped properties. Sender must be the collection owner.1467	///1468	/// See [`create_item`](pallet_nonfungible::pallet::Pallet::create_item) for more details.1469	pub fn create_nft(1470		sender: &T::CrossAccountId,1471		owner: &T::CrossAccountId,1472		collection: &NonfungibleHandle<T>,1473		properties: impl Iterator<Item = Property>,1474	) -> Result<TokenId, DispatchError> {1475		let data = CreateNftExData {1476			properties: BoundedVec::default(),1477			owner: owner.clone(),1478		};14791480		let budget = budget::Value::new(NESTING_BUDGET);14811482		<PalletNft<T>>::create_item(collection, sender, data, &budget)?;14831484		let nft_id = <PalletNft<T>>::current_token_id(collection.id);14851486		<PalletNft<T>>::set_scoped_token_properties(collection.id, nft_id, RMRK_SCOPE, properties)?;14871488		Ok(nft_id)1489	}14901491	/// Burn an NFT, along with its nested children, limited by `max_burns`. The sender must be the token owner.1492	///1493	/// See [`burn_recursively`](pallet_nonfungible::pallet::Pallet::burn_recursively) for more details.1494	fn destroy_nft(1495		sender: T::CrossAccountId,1496		collection_id: CollectionId,1497		token_id: TokenId,1498		max_burns: u32,1499		error_if_not_owned: Error<T>,1500	) -> DispatchResultWithPostInfo {1501		let collection =1502			Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;15031504		let token_data =1505			<TokenData<T>>::get((collection_id, token_id)).ok_or(<Error<T>>::NoAvailableNftId)?;15061507		let from = token_data.owner;15081509		let owner_check_budget = budget::Value::new(NESTING_BUDGET);15101511		ensure!(1512			<PalletStructure<T>>::check_indirectly_owned(1513				sender.clone(),1514				collection_id,1515				token_id,1516				None,1517				&owner_check_budget1518			)?,1519			error_if_not_owned,1520		);15211522		let burns_budget = budget::Value::new(max_burns);1523		let breadth_budget = budget::Value::new(max_burns);15241525		<PalletNft<T>>::burn_recursively(1526			&collection,1527			&from,1528			token_id,1529			&burns_budget,1530			&breadth_budget,1531		)1532	}15331534	/// Add a sent token pending acceptance to the target owning token as a property.1535	fn insert_pending_child(1536		target: (CollectionId, TokenId),1537		child: (RmrkCollectionId, RmrkNftId),1538	) -> DispatchResult {1539		Self::mutate_pending_children(target, |pending_children| {1540			pending_children.insert(child);1541		})1542	}15431544	/// Remove a sent token pending acceptance from the target token's properties.1545	fn remove_pending_child(1546		target: (CollectionId, TokenId),1547		child: (RmrkCollectionId, RmrkNftId),1548	) -> DispatchResult {1549		Self::mutate_pending_children(target, |pending_children| {1550			pending_children.remove(&child);1551		})1552	}15531554	/// Apply a mutation to the property of a token containing sent tokens1555	/// that are currently pending acceptance.1556	fn mutate_pending_children(1557		(target_collection_id, target_nft_id): (CollectionId, TokenId),1558		f: impl FnOnce(&mut PendingChildrenSet),1559	) -> DispatchResult {1560		<PalletNft<T>>::try_mutate_token_aux_property(1561			target_collection_id,1562			target_nft_id,1563			RMRK_SCOPE,1564			Self::get_scoped_property_key(PendingChildren)?,1565			|pending_children| -> DispatchResult {1566				let mut map = match pending_children {1567					Some(map) => Self::decode_property_value(map)?,1568					None => PendingChildrenSet::new(),1569				};15701571				f(&mut map);15721573				*pending_children = Some(Self::encode_property_value(&map)?);15741575				Ok(())1576			},1577		)1578	}15791580	/// Get an iterator from a token's property containing tokens sent to it1581	/// that are currently pending acceptance.1582	fn iterate_pending_children(1583		collection_id: CollectionId,1584		nft_id: TokenId,1585	) -> Result<impl Iterator<Item = PendingChild>, DispatchError> {1586		let property = <PalletNft<T>>::token_aux_property((1587			collection_id,1588			nft_id,1589			RMRK_SCOPE,1590			Self::get_scoped_property_key(PendingChildren)?,1591		));15921593		let pending_children = match property {1594			Some(map) => Self::decode_property_value(&map)?,1595			None => PendingChildrenSet::new(),1596		};15971598		Ok(pending_children.into_iter())1599	}16001601	/// Get incremented resource ID from within an NFT's properties and store the new latest ID.1602	/// Thus, the returned resource ID should be used.1603	///1604	/// Resource IDs are unique only across an NFT.1605	fn acquire_next_resource_id(1606		collection_id: CollectionId,1607		nft_id: TokenId,1608	) -> Result<RmrkResourceId, DispatchError> {1609		let resource_id: RmrkResourceId =1610			Self::get_nft_property_decoded(collection_id, nft_id, NextResourceId)?;16111612		let next_id = resource_id1613			.checked_add(1)1614			.ok_or(<Error<T>>::NoAvailableResourceId)?;16151616		<PalletNft<T>>::set_scoped_token_property(1617			collection_id,1618			nft_id,1619			RMRK_SCOPE,1620			Self::encode_rmrk_property(NextResourceId, &next_id)?,1621		)?;16221623		Ok(resource_id)1624	}16251626	/// Create and add a resource for a regular NFT, mark it as pending if the sender1627	/// is not the token owner. The sender must be the collection owner.1628	fn resource_add(1629		sender: T::AccountId,1630		collection_id: CollectionId,1631		nft_id: TokenId,1632		resource: RmrkResourceTypes,1633	) -> Result<RmrkResourceId, DispatchError> {1634		let collection =1635			Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1636		ensure!(collection.owner == sender, Error::<T>::NoPermission);16371638		let sender = T::CrossAccountId::from_sub(sender);1639		let budget = budget::Value::new(NESTING_BUDGET);16401641		let nft_owner = <PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)1642			.map_err(Self::map_unique_err_to_proxy)?;16431644		let pending = sender != nft_owner;16451646		let id = Self::acquire_next_resource_id(collection_id, nft_id)?;16471648		let resource_info = RmrkResourceInfo {1649			id,1650			resource,1651			pending,1652			pending_removal: false,1653		};16541655		<PalletNft<T>>::try_mutate_token_aux_property(1656			collection_id,1657			nft_id,1658			RMRK_SCOPE,1659			Self::get_scoped_property_key(ResourceId(id))?,1660			|value| -> DispatchResult {1661				*value = Some(Self::encode_property_value(&resource_info)?);16621663				Ok(())1664			},1665		)?;16661667		Ok(id)1668	}16691670	/// Designate a resource for erasure from an NFT, and remove it if the sender is the token owner.1671	/// The sender must be the collection owner.1672	fn resource_remove(1673		sender: T::AccountId,1674		collection_id: CollectionId,1675		nft_id: TokenId,1676		resource_id: RmrkResourceId,1677	) -> DispatchResult {1678		let collection =1679			Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1680		ensure!(collection.owner == sender, Error::<T>::NoPermission);16811682		let resource_id_key = Self::get_scoped_property_key(ResourceId(resource_id))?;16831684		let resource = <PalletNft<T>>::token_aux_property((1685			collection_id,1686			nft_id,1687			RMRK_SCOPE,1688			resource_id_key.clone(),1689		))1690		.ok_or(<Error<T>>::ResourceDoesntExist)?;16911692		let resource_info: RmrkResourceInfo = Self::decode_property_value(&resource)?;16931694		let budget = up_data_structs::budget::Value::new(NESTING_BUDGET);1695		let topmost_owner =1696			<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)?;16971698		let sender = T::CrossAccountId::from_sub(sender);1699		if topmost_owner == sender {1700			<PalletNft<T>>::remove_token_aux_property(1701				collection_id,1702				nft_id,1703				RMRK_SCOPE,1704				Self::get_scoped_property_key(ResourceId(resource_id))?,1705			);17061707			if let RmrkResourceTypes::Composable(resource) = resource_info.resource {1708				let base_id = resource.base;17091710				Self::remove_associated_base_id(collection_id, nft_id, base_id)?;1711			}1712		} else {1713			Self::try_mutate_resource_info(collection_id, nft_id, resource_id, |res| {1714				res.pending_removal = true;17151716				Ok(())1717			})?;1718		}17191720		Ok(())1721	}17221723	/// Remove a Base ID from an NFT if they are associated.1724	/// The Base itself is deleted if the number of associated NFTs reaches 0.1725	fn remove_associated_base_id(1726		collection_id: CollectionId,1727		nft_id: TokenId,1728		base_id: RmrkBaseId,1729	) -> DispatchResult {1730		<PalletNft<T>>::try_mutate_token_aux_property(1731			collection_id,1732			nft_id,1733			RMRK_SCOPE,1734			Self::get_scoped_property_key(AssociatedBases)?,1735			|value| -> DispatchResult {1736				let mut bases: BasesMap = match value {1737					Some(value) => Self::decode_property_value(value)?,1738					None => BasesMap::new(),1739				};17401741				let remaining = bases.get(&base_id);17421743				if let Some(remaining) = remaining {1744					if let Some(0) | None = remaining.checked_sub(1) {1745						bases.remove(&base_id);1746					}1747				}17481749				*value = Some(Self::encode_property_value(&bases)?);1750				Ok(())1751			},1752		)1753	}17541755	/// Apply a mutation to a resource stored in the token properties of an NFT.1756	fn try_mutate_resource_info(1757		collection_id: CollectionId,1758		nft_id: TokenId,1759		resource_id: RmrkResourceId,1760		f: impl FnOnce(&mut RmrkResourceInfo) -> DispatchResult,1761	) -> DispatchResult {1762		<PalletNft<T>>::try_mutate_token_aux_property(1763			collection_id,1764			nft_id,1765			RMRK_SCOPE,1766			Self::get_scoped_property_key(ResourceId(resource_id))?,1767			|value| match value {1768				Some(value) => {1769					let mut resource_info: RmrkResourceInfo = Self::decode_property_value(value)?;17701771					f(&mut resource_info)?;17721773					*value = Self::encode_property_value(&resource_info)?;17741775					Ok(())1776				}1777				None => Err(<Error<T>>::ResourceDoesntExist.into()),1778			},1779		)1780	}17811782	/// Change the owner of an NFT collection, ensuring that the sender is the current owner.1783	fn change_collection_owner(1784		collection_id: CollectionId,1785		collection_type: misc::CollectionType,1786		sender: T::AccountId,1787		new_owner: T::AccountId,1788	) -> DispatchResult {1789		let collection = Self::get_typed_nft_collection(collection_id, collection_type)?;1790		Self::check_collection_owner(&collection, &T::CrossAccountId::from_sub(sender))?;17911792		let mut collection = collection.into_inner();17931794		collection.owner = new_owner;1795		collection.save()1796	}17971798	/// Ensure that an account is the collection owner/issuer, return an error if not.1799	pub fn check_collection_owner(1800		collection: &NonfungibleHandle<T>,1801		account: &T::CrossAccountId,1802	) -> DispatchResult {1803		collection1804			.check_is_owner(account)1805			.map_err(Self::map_unique_err_to_proxy)1806	}18071808	/// Get the latest yet-unused RMRK collection index from the storage.1809	pub fn last_collection_idx() -> RmrkCollectionId {1810		<CollectionIndex<T>>::get()1811	}18121813	/// Get a mapping from a RMRK collection ID to its corresponding Unique collection ID.1814	pub fn unique_collection_id(1815		rmrk_collection_id: RmrkCollectionId,1816	) -> Result<CollectionId, DispatchError> {1817		<UniqueCollectionId<T>>::try_get(rmrk_collection_id)1818			.map_err(|_| <Error<T>>::CollectionUnknown.into())1819	}18201821	/// Get a mapping from a Unique collection ID to its RMRK collection ID counterpart, if it exists.1822	pub fn rmrk_collection_id(1823		unique_collection_id: CollectionId,1824	) -> Result<RmrkCollectionId, DispatchError> {1825		Self::get_collection_property_decoded(unique_collection_id, RmrkInternalCollectionId)1826	}18271828	/// Fetch a Unique NFT collection.1829	pub fn get_nft_collection(1830		collection_id: CollectionId,1831	) -> Result<NonfungibleHandle<T>, DispatchError> {1832		let collection = <CollectionHandle<T>>::try_get(collection_id)1833			.map_err(|_| <Error<T>>::CollectionUnknown)?;18341835		match collection.mode {1836			CollectionMode::NFT => Ok(NonfungibleHandle::cast(collection)),1837			_ => Err(<Error<T>>::CollectionUnknown.into()),1838		}1839	}18401841	/// Check if an NFT collection with such an ID exists.1842	pub fn collection_exists(collection_id: CollectionId) -> bool {1843		<CollectionHandle<T>>::try_get(collection_id).is_ok()1844	}18451846	/// Fetch and decode a RMRK-scoped collection property value in bytes.1847	pub fn get_collection_property(1848		collection_id: CollectionId,1849		key: RmrkProperty,1850	) -> Result<PropertyValue, DispatchError> {1851		let collection_property = <PalletCommon<T>>::collection_properties(collection_id)1852			.get(&Self::get_scoped_property_key(key)?)1853			.ok_or(<Error<T>>::CollectionUnknown)?1854			.clone();18551856		Ok(collection_property)1857	}18581859	/// Fetch a RMRK-scoped collection property and decode it from bytes into an appropriate type.1860	pub fn get_collection_property_decoded<V: Decode>(1861		collection_id: CollectionId,1862		key: RmrkProperty,1863	) -> Result<V, DispatchError> {1864		Self::decode_property_value(&Self::get_collection_property(collection_id, key)?)1865	}18661867	/// Get the type of a collection stored as a scoped property.1868	///1869	/// RMRK Core proxy differentiates between regular collections as well as RMRK Bases as collections.1870	pub fn get_collection_type(1871		collection_id: CollectionId,1872	) -> Result<misc::CollectionType, DispatchError> {1873		Self::get_collection_property_decoded(collection_id, CollectionType).map_err(|err| {1874			if err != <Error<T>>::CollectionUnknown.into() {1875				<Error<T>>::CorruptedCollectionType.into()1876			} else {1877				err1878			}1879		})1880	}18811882	/// Ensure that the type of the collection equals the provided type,1883	/// otherwise return an error.1884	pub fn ensure_collection_type(1885		collection_id: CollectionId,1886		collection_type: misc::CollectionType,1887	) -> DispatchResult {1888		let actual_type = Self::get_collection_type(collection_id)?;1889		ensure!(1890			actual_type == collection_type,1891			<CommonError<T>>::NoPermission1892		);18931894		Ok(())1895	}18961897	/// Fetch an NFT collection, but make sure it has the appropriate type.1898	pub fn get_typed_nft_collection(1899		collection_id: CollectionId,1900		collection_type: misc::CollectionType,1901	) -> Result<NonfungibleHandle<T>, DispatchError> {1902		Self::ensure_collection_type(collection_id, collection_type)?;19031904		Self::get_nft_collection(collection_id)1905	}19061907	/// Same as [`get_typed_nft_collection`](crate::pallet::Pallet::get_typed_nft_collection),1908	/// but also return the Unique collection ID.1909	pub fn get_typed_nft_collection_mapped(1910		rmrk_collection_id: RmrkCollectionId,1911		collection_type: misc::CollectionType,1912	) -> Result<(NonfungibleHandle<T>, CollectionId), DispatchError> {1913		let unique_collection_id = match collection_type {1914			misc::CollectionType::Regular => Self::unique_collection_id(rmrk_collection_id)?,1915			_ => rmrk_collection_id.into(),1916		};19171918		let collection = Self::get_typed_nft_collection(unique_collection_id, collection_type)?;19191920		Ok((collection, unique_collection_id))1921	}19221923	/// Fetch and decode a RMRK-scoped NFT property value in bytes.1924	pub fn get_nft_property(1925		collection_id: CollectionId,1926		nft_id: TokenId,1927		key: RmrkProperty,1928	) -> Result<PropertyValue, DispatchError> {1929		let nft_property = <PalletNft<T>>::token_properties((collection_id, nft_id))1930			.get(&Self::get_scoped_property_key(key)?)1931			.ok_or(<Error<T>>::RmrkPropertyIsNotFound)?1932			.clone();19331934		Ok(nft_property)1935	}19361937	/// Fetch a RMRK-scoped NFT property and decode it from bytes into an appropriate type.1938	pub fn get_nft_property_decoded<V: Decode>(1939		collection_id: CollectionId,1940		nft_id: TokenId,1941		key: RmrkProperty,1942	) -> Result<V, DispatchError> {1943		Self::decode_property_value(&Self::get_nft_property(collection_id, nft_id, key)?)1944	}19451946	/// Check that an NFT exists.1947	pub fn nft_exists(collection_id: CollectionId, nft_id: TokenId) -> bool {1948		<TokenData<T>>::contains_key((collection_id, nft_id))1949	}19501951	/// Get the type of an NFT stored as a scoped property.1952	///1953	/// RMRK Core proxy differentiates between regular NFTs, and RMRK Parts and Themes.1954	pub fn get_nft_type(1955		collection_id: CollectionId,1956		token_id: TokenId,1957	) -> Result<NftType, DispatchError> {1958		Self::get_nft_property_decoded(collection_id, token_id, TokenType)1959			.map_err(|_| <Error<T>>::NoAvailableNftId.into())1960	}19611962	/// Ensure that the type of the NFT equals the provided type, otherwise return an error.1963	pub fn ensure_nft_type(1964		collection_id: CollectionId,1965		token_id: TokenId,1966		nft_type: NftType,1967	) -> DispatchResult {1968		let actual_type = Self::get_nft_type(collection_id, token_id)?;1969		ensure!(actual_type == nft_type, <Error<T>>::NoPermission);19701971		Ok(())1972	}19731974	/// Ensure that an account is the owner of the token, either directly1975	/// or at the top of the nesting hierarchy; return an error if it is not.1976	pub fn ensure_nft_owner(1977		collection_id: CollectionId,1978		token_id: TokenId,1979		possible_owner: &T::CrossAccountId,1980		nesting_budget: &dyn budget::Budget,1981	) -> DispatchResult {1982		let is_owned = <PalletStructure<T>>::check_indirectly_owned(1983			possible_owner.clone(),1984			collection_id,1985			token_id,1986			None,1987			nesting_budget,1988		)1989		.map_err(Self::map_unique_err_to_proxy)?;19901991		ensure!(is_owned, <Error<T>>::NoPermission);19921993		Ok(())1994	}19951996	/// Fetch non-scoped properties of a collection or a token that match the filter keys supplied,1997	/// or, if None are provided, return all non-scoped properties.1998	pub fn filter_user_properties<Key, Value, R, Mapper>(1999		collection_id: CollectionId,2000		token_id: Option<TokenId>,2001		filter_keys: Option<Vec<RmrkPropertyKey>>,2002		mapper: Mapper,2003	) -> Result<Vec<R>, DispatchError>2004	where2005		Key: TryFrom<RmrkPropertyKey> + AsRef<[u8]>,2006		Value: Decode + Default,2007		Mapper: Fn(Key, Value) -> R,2008	{2009		filter_keys2010			.map(|keys| {2011				let properties = keys2012					.into_iter()2013					.filter_map(|key| {2014						let key: Key = key.try_into().ok()?;20152016						let value = match token_id {2017							Some(token_id) => Self::get_nft_property_decoded(2018								collection_id,2019								token_id,2020								UserProperty(key.as_ref()),2021							),2022							None => Self::get_collection_property_decoded(2023								collection_id,2024								UserProperty(key.as_ref()),2025							),2026						}2027						.ok()?;20282029						Some(mapper(key, value))2030					})2031					.collect();20322033				Ok(properties)2034			})2035			.unwrap_or_else(|| {2036				let properties =2037					Self::iterate_user_properties(collection_id, token_id, mapper)?.collect();20382039				Ok(properties)2040			})2041	}20422043	/// Get all non-scoped properties from a collection or a token, and apply some transformation,2044	/// supplied by `mapper`, to each key-value pair.2045	pub fn iterate_user_properties<Key, Value, R, Mapper>(2046		collection_id: CollectionId,2047		token_id: Option<TokenId>,2048		mapper: Mapper,2049	) -> Result<impl Iterator<Item = R>, DispatchError>2050	where2051		Key: TryFrom<RmrkPropertyKey> + AsRef<[u8]>,2052		Value: Decode + Default,2053		Mapper: Fn(Key, Value) -> R,2054	{2055		let properties = match token_id {2056			Some(token_id) => <PalletNft<T>>::token_properties((collection_id, token_id)),2057			None => <PalletCommon<T>>::collection_properties(collection_id),2058		};20592060		let properties = properties.into_iter().filter_map(move |(key, value)| {2061			let key = strip_key_prefix(&key, USER_PROPERTY_PREFIX)?;20622063			let key: Key = key.to_vec().try_into().ok()?;2064			let value: Value = value.decode().ok()?;20652066			Some(mapper(key, value))2067		});20682069		Ok(properties)2070	}20712072	/// Match Unique errors to RMRK's own and return the RMRK error if a match is successful.2073	fn map_unique_err_to_proxy(err: DispatchError) -> DispatchError {2074		map_unique_err_to_proxy! {2075			match err {2076				CommonError::NoPermission => NoPermission,2077				CommonError::CollectionTokenLimitExceeded => CollectionFullOrLocked,2078				CommonError::PublicMintingNotAllowed => NoPermission,2079				CommonError::TokenNotFound => NoAvailableNftId,2080				CommonError::ApprovedValueTooLow => NoPermission,2081				CommonError::CantDestroyNotEmptyCollection => CollectionNotEmpty,2082				StructureError::TokenNotFound => NoAvailableNftId,2083				StructureError::OuroborosDetected => CannotSendToDescendentOrSelf,2084			}2085		}2086	}2087}
after · pallets/proxy-rmrk-core/src/lib.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! # RMRK Core Proxy Pallet18//!19//! A pallet used as proxy for RMRK Core (<https://rmrk-team.github.io/rmrk-substrate/#/pallets/rmrk-core>).20//!21//! - [`Config`]22//! - [`Call`]23//! - [`Pallet`]24//!25//! ## Overview26//!27//! The RMRK Core Proxy pallet mirrors the functionality of RMRK Core,28//! binding its externalities to Unique's own underlying structure.29//! It is purposed to mimic RMRK Core exactly, allowing seamless integrations30//! of solutions based on RMRK.31//!32//! RMRK Core itself contains essential functionality for RMRK's nested and33//! multi-resourced NFTs.34//!35//! *Note*, that while RMRK itself is subject to active development and restructuring,36//! the proxy may be caught temporarily out of date.37//!38//! ### What is RMRK?39//!40//! RMRK is a set of NFT standards which compose several "NFT 2.0 lego" primitives.41//! Putting these legos together allows a user to create NFT systems of arbitrary complexity.42//!43//! Meaning, RMRK NFTs are dynamic, able to nest into each other and form a hierarchy,44//! make use of specific changeable and partially shared metadata in the form of resources,45//! and more.46//!47//! Visit RMRK documentation and repositories to learn more:48//! - Docs: <https://docs.rmrk.app/getting-started/>49//! - FAQ: <https://coda.io/@rmrk/faq>50//! - Substrate code repository: <https://github.com/rmrk-team/rmrk-substrate>51//! - RMRK specification repository: <https://github.com/rmrk-team/rmrk-spec>52//!53//! ## Terminology54//!55//! For more information on RMRK, see RMRK's own documentation.56//!57//! ### Intro to RMRK58//!59//! - **Resource:** Additional piece of metadata of an NFT usually serving to add60//! a piece of media on top of the root metadata (NFT's own), be it a different wing61//! on the root template bird or something entirely unrelated.62//!63//! - **Base:** A list of possible "components" - Parts, a combination of which can64//! be appended/equipped to/on an NFT.65//!66//! - **Part:** Something that, together with other Parts, can constitute an NFT.67//! Parts are defined in the Base to which they belong. Parts can be either68//! of the `slot` type or `fixed` type. Slots are intended for equippables.69//! Note that "part of something" and "Part of a Base" can be easily confused,70//! and so in this documentation these words are distinguished by the capital letter.71//!72//! - **Theme:** Named objects of variable => value pairs which get interpolated into73//! the Base's `themable` Parts. Themes can hold any value, but are often represented74//! in RMRK's examples as colors applied to visible Parts.75//!76//! ### Peculiarities in Unique77//!78//! - **Scoped properties:** Properties that are normally obscured from users.79//! Their purpose is to contain structured metadata that was not included in the Unique standard80//! for collections and tokens, meant to be operated on by proxies and other outliers.81//! Scoped property keys are prefixed with `some-scope:`, where `some-scope` is82//! an arbitrary keyword, like "rmrk". `:` is considered an unacceptable symbol in user-defined83//! properties, which, along with other safeguards, makes scoped ones impossible to tamper with.84//!85//! - **Auxiliary properties:** A slightly different structure of properties,86//! trading universality of use for more convenient storage, writes and access.87//! Meant to be inaccessible to end users.88//!89//! ## Proxy Implementation90//!91//! An external user is supposed to be able to utilize this proxy as they would92//! utilize RMRK, and get exactly the same results. Normally, Unique transactions93//! are off-limits to RMRK collections and tokens, and vice versa. However,94//! the information stored on chain can be freely interpreted by storage reads and Unique RPCs.95//!96//! ### ID Mapping97//!98//! RMRK's collections' IDs are counted independently of Unique's and start at 0.99//! Note that tokens' IDs still start at 1.100//! The collections themselves, as well as tokens, are stored as Unique collections,101//! and thus RMRK IDs are mapped to Unique IDs (but not vice versa).102//!103//! ### External/Internal Collection Insulation104//!105//! A Unique transaction cannot target collections purposed for RMRK,106//! and they are flagged as `external` to specify that. On the other hand,107//! due to the mapping, RMRK transactions and RPCs simply cannot reach Unique collections.108//!109//! ### Native Properties110//!111//! Many of RMRK's native parameters are stored as scoped properties of a collection112//! or an NFT on the chain. Scoped properties are prefixed with `rmrk:`, where `:`113//! is an unacceptable symbol in user-defined properties, which, along with other safeguards,114//! makes them impossible to tamper with.115//!116//! ### Collection and NFT Types, or Base, Parts and Themes Handling117//!118//! RMRK introduces the concept of a Base, which is a catalogue of Parts,119//! possible components of an NFT. Due to its similarity with the functionality120//! of a token collection, a Base is stored and handled as one, and the Base's Parts and Themes121//! are this collection's NFTs. See [`CollectionType`] and [`NftType`].122//!123//! ## Interface124//!125//! ### Dispatchables126//!127//! - `create_collection` - Create a new collection of NFTs.128//! - `destroy_collection` - Destroy a collection.129//! - `change_collection_issuer` - Change the issuer of a collection.130//! Analogous to Unique's collection's [`owner`](up_data_structs::Collection).131//! - `lock_collection` - "Lock" the collection and prevent new token creation. **Cannot be undone.**132//! - `mint_nft` - Mint an NFT in a specified collection.133//! - `burn_nft` - Burn an NFT, destroying it and its nested tokens.134//! - `send` - Transfer an NFT from an account/NFT A to another account/NFT B.135//! - `accept_nft` - Accept an NFT sent from another account to self or an owned NFT.136//! - `reject_nft` - Reject an NFT sent from another account to self or owned NFT and **burn it**.137//! - `accept_resource` - Accept the addition of a newly created pending resource to an existing NFT.138//! - `accept_resource_removal` - Accept the removal of a removal-pending resource from an NFT.139//! - `set_property` - Add or edit a custom user property of a token or a collection.140//! - `set_priority` - Set a different order of resource priorities for an NFT.141//! - `add_basic_resource` - Create and set/propose a basic resource for an NFT.142//! - `add_composable_resource` - Create and set/propose a composable resource for an NFT.143//! - `add_slot_resource` - Create and set/propose a slot resource for an NFT.144//! - `remove_resource` - Remove and erase a resource from an NFT.145146#![cfg_attr(not(feature = "std"), no_std)]147148use frame_support::{pallet_prelude::*, BoundedVec, dispatch::DispatchResult};149use frame_system::{pallet_prelude::*, ensure_signed};150use sp_runtime::{DispatchError, Permill, traits::StaticLookup};151use sp_std::{152	vec::Vec,153	collections::{btree_set::BTreeSet, btree_map::BTreeMap},154};155use up_data_structs::{*, mapping::TokenAddressMapping};156use pallet_common::{157	Pallet as PalletCommon, Error as CommonError, CollectionHandle, CommonCollectionOperations,158};159use pallet_nonfungible::{Pallet as PalletNft, NonfungibleHandle, TokenData};160use pallet_structure::{Pallet as PalletStructure, Error as StructureError};161use pallet_evm::account::CrossAccountId;162use core::convert::AsRef;163164pub use pallet::*;165166#[cfg(feature = "runtime-benchmarks")]167pub mod benchmarking;168pub mod misc;169pub mod property;170pub mod rpc;171pub mod weights;172173pub type SelfWeightOf<T> = <T as Config>::WeightInfo;174175use weights::WeightInfo;176use misc::*;177pub use property::*;178179use RmrkProperty::*;180181/// Maximum number of levels of depth in the token nesting tree.182pub const NESTING_BUDGET: u32 = 5;183184type PendingTarget = (CollectionId, TokenId);185type PendingChild = (RmrkCollectionId, RmrkNftId);186type PendingChildrenSet = BTreeSet<PendingChild>;187188type BasesMap = BTreeMap<RmrkBaseId, u32>;189190#[frame_support::pallet]191pub mod pallet {192	use super::*;193	use pallet_evm::account;194195	#[pallet::config]196	pub trait Config:197		frame_system::Config + pallet_common::Config + pallet_nonfungible::Config + account::Config198	{199		/// Overarching event type.200		type Event: From<Event<Self>> + IsType<<Self as frame_system::Config>::Event>;201202		/// The weight information of this pallet.203		type WeightInfo: WeightInfo;204	}205206	/// Latest yet-unused collection ID.207	#[pallet::storage]208	#[pallet::getter(fn collection_index)]209	pub type CollectionIndex<T: Config> = StorageValue<_, RmrkCollectionId, ValueQuery>;210211	/// Mapping from RMRK collection ID to Unique's.212	#[pallet::storage]213	pub type UniqueCollectionId<T: Config> =214		StorageMap<_, Twox64Concat, RmrkCollectionId, CollectionId, ValueQuery>;215216	#[pallet::pallet]217	#[pallet::generate_store(pub(super) trait Store)]218	pub struct Pallet<T>(_);219220	#[pallet::event]221	#[pallet::generate_deposit(pub(super) fn deposit_event)]222	pub enum Event<T: Config> {223		CollectionCreated {224			issuer: T::AccountId,225			collection_id: RmrkCollectionId,226		},227		CollectionDestroyed {228			issuer: T::AccountId,229			collection_id: RmrkCollectionId,230		},231		IssuerChanged {232			old_issuer: T::AccountId,233			new_issuer: T::AccountId,234			collection_id: RmrkCollectionId,235		},236		CollectionLocked {237			issuer: T::AccountId,238			collection_id: RmrkCollectionId,239		},240		NftMinted {241			owner: T::AccountId,242			collection_id: RmrkCollectionId,243			nft_id: RmrkNftId,244		},245		NFTBurned {246			owner: T::AccountId,247			nft_id: RmrkNftId,248		},249		NFTSent {250			sender: T::AccountId,251			recipient: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,252			collection_id: RmrkCollectionId,253			nft_id: RmrkNftId,254			approval_required: bool,255		},256		NFTAccepted {257			sender: T::AccountId,258			recipient: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,259			collection_id: RmrkCollectionId,260			nft_id: RmrkNftId,261		},262		NFTRejected {263			sender: T::AccountId,264			collection_id: RmrkCollectionId,265			nft_id: RmrkNftId,266		},267		PropertySet {268			collection_id: RmrkCollectionId,269			maybe_nft_id: Option<RmrkNftId>,270			key: RmrkKeyString,271			value: RmrkValueString,272		},273		ResourceAdded {274			nft_id: RmrkNftId,275			resource_id: RmrkResourceId,276		},277		ResourceRemoval {278			nft_id: RmrkNftId,279			resource_id: RmrkResourceId,280		},281		ResourceAccepted {282			nft_id: RmrkNftId,283			resource_id: RmrkResourceId,284		},285		ResourceRemovalAccepted {286			nft_id: RmrkNftId,287			resource_id: RmrkResourceId,288		},289		PrioritySet {290			collection_id: RmrkCollectionId,291			nft_id: RmrkNftId,292		},293	}294295	#[pallet::error]296	pub enum Error<T> {297		/* Unique proxy-specific events */298		/// Property of the type of RMRK collection could not be read successfully.299		CorruptedCollectionType,300		// NftTypeEncodeError,301		/// Too many symbols supplied as the property key. The maximum is [256](up_data_structs::MAX_PROPERTY_KEY_LENGTH).302		RmrkPropertyKeyIsTooLong,303		/// Too many bytes supplied as the property value. The maximum is [32768](up_data_structs::MAX_PROPERTY_VALUE_LENGTH).304		RmrkPropertyValueIsTooLong,305		/// Could not find a property by the supplied key.306		RmrkPropertyIsNotFound,307		/// Something went wrong when decoding encoded data from the storage.308		/// Perhaps, there was a wrong key supplied for the type, or the data was improperly stored.309		UnableToDecodeRmrkData,310311		/* RMRK compatible events */312		/// Only destroying collections without tokens is allowed.313		CollectionNotEmpty,314		/// Could not find an ID for a collection. It is likely there were too many collections created on the chain, causing an overflow.315		NoAvailableCollectionId,316		/// Token does not exist, or there is no suitable ID for it, likely too many tokens were created in a collection, causing an overflow.317		NoAvailableNftId,318		/// Collection does not exist, has a wrong type, or does not map to a Unique ID.319		CollectionUnknown,320		/// No permission to perform action.321		NoPermission,322		/// Token is marked as non-transferable, and thus cannot be transferred.323		NonTransferable,324		/// Too many tokens created in the collection, no new ones are allowed.325		CollectionFullOrLocked,326		/// No such resource found.327		ResourceDoesntExist,328		/// If an NFT is sent to a descendant, that would form a nesting loop, an ouroboros.329		/// Sending to self is redundant.330		CannotSendToDescendentOrSelf,331		/// Not the target owner of the sent NFT.332		CannotAcceptNonOwnedNft,333		/// Not the target owner of the sent NFT.334		CannotRejectNonOwnedNft,335		/// NFT was not sent and is not pending.336		CannotRejectNonPendingNft,337		/// Resource is not pending for the operation.338		ResourceNotPending,339		/// Could not find an ID for the resource. It is likely there were too many resources created on an NFT, causing an overflow.340		NoAvailableResourceId,341	}342343	#[pallet::call]344	impl<T: Config> Pallet<T> {345		// todo :refactor replace every collection_id with rmrk_collection_id (and nft_id) in arguments for uniformity?346347		/// Create a new collection of NFTs.348		///349		/// # Permissions:350		/// * Anyone - will be assigned as the issuer of the collection.351		///352		/// # Arguments:353		/// - `origin`: sender of the transaction354		/// - `metadata`: Metadata describing the collection, e.g. IPFS hash. Cannot be changed.355		/// - `max`: Optional maximum number of tokens.356		/// - `symbol`: UTF-8 string with token prefix, by which to represent the token in wallets and UIs.357		/// Analogous to Unique's [`token_prefix`](up_data_structs::Collection). Cannot be changed.358		#[pallet::weight(<SelfWeightOf<T>>::create_collection())]359		pub fn create_collection(360			origin: OriginFor<T>,361			metadata: RmrkString,362			max: Option<u32>,363			symbol: RmrkCollectionSymbol,364		) -> DispatchResult {365			let sender = ensure_signed(origin)?;366367			let limits = CollectionLimits {368				owner_can_transfer: Some(false),369				token_limit: max,370				..Default::default()371			};372373			let data = CreateCollectionData {374				limits: Some(limits),375				token_prefix: symbol376					.into_inner()377					.try_into()378					.map_err(|_| <CommonError<T>>::CollectionTokenPrefixLimitExceeded)?,379				permissions: Some(CollectionPermissions {380					nesting: Some(NestingPermissions {381						token_owner: true,382						collection_admin: false,383						restricted: None,384						#[cfg(feature = "runtime-benchmarks")]385						permissive: false,386					}),387					..Default::default()388				}),389				..Default::default()390			};391392			let unique_collection_id = Self::init_collection(393				T::CrossAccountId::from_sub(sender.clone()),394				data,395				[396					Self::encode_rmrk_property(Metadata, &metadata)?,397					Self::encode_rmrk_property(CollectionType, &misc::CollectionType::Regular)?,398				]399				.into_iter(),400			)?;401			let rmrk_collection_id = <CollectionIndex<T>>::get();402403			<UniqueCollectionId<T>>::insert(rmrk_collection_id, unique_collection_id);404405			<PalletCommon<T>>::set_scoped_collection_property(406				unique_collection_id,407				RMRK_SCOPE,408				Self::encode_rmrk_property(RmrkInternalCollectionId, &rmrk_collection_id)?,409			)?;410411			<CollectionIndex<T>>::mutate(|n| *n += 1);412413			Self::deposit_event(Event::CollectionCreated {414				issuer: sender,415				collection_id: rmrk_collection_id,416			});417418			Ok(())419		}420421		/// Destroy a collection.422		///423		/// Only empty collections can be destroyed. If it has any tokens, they must be burned first.424		///425		/// # Permissions:426		/// * Collection issuer427		///428		/// # Arguments:429		/// - `origin`: sender of the transaction430		/// - `collection_id`: RMRK ID of the collection to destroy.431		#[pallet::weight(<SelfWeightOf<T>>::destroy_collection())]432		pub fn destroy_collection(433			origin: OriginFor<T>,434			collection_id: RmrkCollectionId,435		) -> DispatchResult {436			let sender = ensure_signed(origin)?;437			let cross_sender = T::CrossAccountId::from_sub(sender.clone());438439			let collection = Self::get_typed_nft_collection(440				Self::unique_collection_id(collection_id)?,441				misc::CollectionType::Regular,442			)?;443			collection.check_is_external()?;444445			<PalletNft<T>>::destroy_collection(collection, &cross_sender)446				.map_err(Self::map_unique_err_to_proxy)?;447448			Self::deposit_event(Event::CollectionDestroyed {449				issuer: sender,450				collection_id,451			});452453			Ok(())454		}455456		/// Change the issuer of a collection. Analogous to Unique's collection's [`owner`](up_data_structs::Collection).457		///458		/// # Permissions:459		/// * Collection issuer460		///461		/// # Arguments:462		/// - `origin`: sender of the transaction463		/// - `collection_id`: RMRK collection ID to change the issuer of.464		/// - `new_issuer`: Collection's new issuer.465		#[pallet::weight(<SelfWeightOf<T>>::change_collection_issuer())]466		pub fn change_collection_issuer(467			origin: OriginFor<T>,468			collection_id: RmrkCollectionId,469			new_issuer: <T::Lookup as StaticLookup>::Source,470		) -> DispatchResult {471			let sender = ensure_signed(origin)?;472473			let collection = Self::get_nft_collection(Self::unique_collection_id(collection_id)?)?;474			collection.check_is_external()?;475476			let new_issuer = T::Lookup::lookup(new_issuer)?;477478			Self::change_collection_owner(479				Self::unique_collection_id(collection_id)?,480				misc::CollectionType::Regular,481				sender.clone(),482				new_issuer.clone(),483			)?;484485			Self::deposit_event(Event::IssuerChanged {486				old_issuer: sender,487				new_issuer,488				collection_id,489			});490491			Ok(())492		}493494		/// "Lock" the collection and prevent new token creation. Cannot be undone.495		///496		/// # Permissions:497		/// * Collection issuer498		///499		/// # Arguments:500		/// - `origin`: sender of the transaction501		/// - `collection_id`: RMRK ID of the collection to lock.502		#[pallet::weight(<SelfWeightOf<T>>::lock_collection())]503		pub fn lock_collection(504			origin: OriginFor<T>,505			collection_id: RmrkCollectionId,506		) -> DispatchResult {507			let sender = ensure_signed(origin)?;508			let cross_sender = T::CrossAccountId::from_sub(sender.clone());509510			let collection = Self::get_typed_nft_collection(511				Self::unique_collection_id(collection_id)?,512				misc::CollectionType::Regular,513			)?;514			collection.check_is_external()?;515516			Self::check_collection_owner(&collection, &cross_sender)?;517518			let token_count = collection.total_supply();519520			let mut collection = collection.into_inner();521			collection.limits.token_limit = Some(token_count);522			collection.save()?;523524			Self::deposit_event(Event::CollectionLocked {525				issuer: sender,526				collection_id,527			});528529			Ok(())530		}531532		/// Mint an NFT in a specified collection.533		///534		/// # Permissions:535		/// * Collection issuer536		///537		/// # Arguments:538		/// - `origin`: sender of the transaction539		/// - `owner`: Owner account of the NFT. If set to None, defaults to the sender (collection issuer).540		/// - `collection_id`: RMRK collection ID for the NFT to be minted within. Cannot be changed.541		/// - `recipient`: Receiver account of the royalty. Has no effect if the `royalty_amount` is not set. Cannot be changed.542		/// - `royalty_amount`: Optional permillage reward from each trade for the `recipient`. Cannot be changed.543		/// - `metadata`: Arbitrary data about an NFT, e.g. IPFS hash. Cannot be changed.544		/// - `transferable`: Can this NFT be transferred? Cannot be changed.545		/// - `resources`: Resource data to be added to the NFT immediately after minting.546		#[pallet::weight(<SelfWeightOf<T>>::mint_nft(resources.as_ref().map(|r| r.len() as u32).unwrap_or(0)))]547		pub fn mint_nft(548			origin: OriginFor<T>,549			owner: Option<T::AccountId>,550			collection_id: RmrkCollectionId,551			recipient: Option<T::AccountId>,552			royalty_amount: Option<Permill>,553			metadata: RmrkString,554			transferable: bool,555			resources: Option<BoundedVec<RmrkResourceTypes, MaxResourcesOnMint>>,556		) -> DispatchResult {557			let sender = ensure_signed(origin)?;558			let cross_sender = T::CrossAccountId::from_sub(sender.clone());559560			let owner = owner.unwrap_or(sender.clone());561			let cross_owner = T::CrossAccountId::from_sub(owner.clone());562563			let collection = Self::get_typed_nft_collection(564				Self::unique_collection_id(collection_id)?,565				misc::CollectionType::Regular,566			)?;567			collection.check_is_external()?;568569			let royalty_info = royalty_amount.map(|amount| rmrk_traits::RoyaltyInfo {570				recipient: recipient.unwrap_or_else(|| owner.clone()),571				amount,572			});573574			let nft_id = Self::create_nft(575				&cross_sender,576				&cross_owner,577				&collection,578				[579					Self::encode_rmrk_property(TokenType, &NftType::Regular)?,580					Self::encode_rmrk_property(Transferable, &transferable)?,581					Self::encode_rmrk_property(PendingNftAccept, &None::<PendingTarget>)?,582					Self::encode_rmrk_property(RoyaltyInfo, &royalty_info)?,583					Self::encode_rmrk_property(Metadata, &metadata)?,584					Self::encode_rmrk_property(Equipped, &false)?,585					Self::encode_rmrk_property(ResourcePriorities, &<Vec<u8>>::new())?,586					Self::encode_rmrk_property(NextResourceId, &(0 as RmrkResourceId))?,587					Self::encode_rmrk_property(PendingChildren, &PendingChildrenSet::new())?,588					Self::encode_rmrk_property(AssociatedBases, &BasesMap::new())?,589				]590				.into_iter(),591			)592			.map_err(|err| match err {593				DispatchError::Arithmetic(_) => <Error<T>>::NoAvailableNftId.into(),594				err => Self::map_unique_err_to_proxy(err),595			})?;596597			if let Some(resources) = resources {598				for resource in resources {599					Self::resource_add(sender.clone(), collection.id, nft_id, resource)?;600				}601			}602603			Self::deposit_event(Event::NftMinted {604				owner,605				collection_id,606				nft_id: nft_id.0,607			});608609			Ok(())610		}611612		/// Burn an NFT, destroying it and its nested tokens up to the specified limit.613		/// If the burning budget is exceeded, the transaction is reverted.614		///615		/// This is the way to burn a nested token as well.616		///617		/// For more information, see [`burn_recursively`](pallet_nonfungible::pallet::Pallet::burn_recursively).618		///619		/// # Permissions:620		/// * Token owner621		///622		/// # Arguments:623		/// - `origin`: sender of the transaction624		/// - `collection_id`: RMRK ID of the collection in which the NFT to burn belongs to.625		/// - `nft_id`: ID of the NFT to be destroyed.626		/// - `max_burns`: Maximum number of tokens to burn, assuming nesting. The transaction627		/// is reverted if there are more tokens to burn in the nesting tree than this number.628		/// This is primarily a mechanism of transaction weight control.629		#[pallet::weight(<SelfWeightOf<T>>::burn_nft(*max_burns))]630		pub fn burn_nft(631			origin: OriginFor<T>,632			collection_id: RmrkCollectionId,633			nft_id: RmrkNftId,634			max_burns: u32,635		) -> DispatchResult {636			let sender = ensure_signed(origin)?;637			let cross_sender = T::CrossAccountId::from_sub(sender.clone());638639			let collection = Self::get_typed_nft_collection(640				Self::unique_collection_id(collection_id)?,641				misc::CollectionType::Regular,642			)?;643			collection.check_is_external()?;644645			Self::destroy_nft(646				cross_sender,647				Self::unique_collection_id(collection_id)?,648				nft_id.into(),649				max_burns,650				<Error<T>>::NoPermission,651			)652			.map_err(|err| Self::map_unique_err_to_proxy(err.error))?;653654			Self::deposit_event(Event::NFTBurned {655				owner: sender,656				nft_id,657			});658659			Ok(())660		}661662		/// Transfer an NFT from an account/NFT A to another account/NFT B.663		/// The token must be transferable. Nesting cannot occur deeper than the [`NESTING_BUDGET`].664		///665		/// If the target owner is an NFT owned by another account, then the NFT will enter666		/// the pending state and will have to be accepted by the other account.667		///668		/// # Permissions:669		/// - Token owner670		///671		/// # Arguments:672		/// - `origin`: sender of the transaction673		/// - `rmrk_collection_id`: RMRK ID of the collection of the NFT to be transferred.674		/// - `rmrk_nft_id`: ID of the NFT to be transferred.675		/// - `new_owner`: New owner of the nft which can be either an account or a NFT.676		#[pallet::weight(<SelfWeightOf<T>>::send())]677		pub fn send(678			origin: OriginFor<T>,679			rmrk_collection_id: RmrkCollectionId,680			rmrk_nft_id: RmrkNftId,681			new_owner: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,682		) -> DispatchResult {683			let sender = ensure_signed(origin.clone())?;684			let cross_sender = T::CrossAccountId::from_sub(sender.clone());685686			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;687			let nft_id = rmrk_nft_id.into();688689			let collection =690				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;691			collection.check_is_external()?;692693			let token_data =694				<TokenData<T>>::get((collection_id, nft_id)).ok_or(<Error<T>>::NoAvailableNftId)?;695696			let from = token_data.owner;697698			ensure!(699				Self::get_nft_property_decoded(collection_id, nft_id, RmrkProperty::Transferable)?,700				<Error<T>>::NonTransferable701			);702703			ensure!(704				Self::get_nft_property_decoded::<Option<PendingTarget>>(705					collection_id,706					nft_id,707					RmrkProperty::PendingNftAccept708				)?709				.is_none(),710				<Error<T>>::NoPermission711			);712713			let target_owner;714			let approval_required;715716			match new_owner {717				RmrkAccountIdOrCollectionNftTuple::AccountId(ref account_id) => {718					target_owner = T::CrossAccountId::from_sub(account_id.clone());719					approval_required = false;720				}721				RmrkAccountIdOrCollectionNftTuple::CollectionAndNftTuple(722					target_collection_id,723					target_nft_id,724				) => {725					let target_collection_id = Self::unique_collection_id(target_collection_id)?;726727					let target_nft_budget = budget::Value::new(NESTING_BUDGET);728729					let target_nft_owner = <PalletStructure<T>>::get_checked_topmost_owner(730						target_collection_id,731						target_nft_id.into(),732						Some((collection_id, nft_id)),733						&target_nft_budget,734					)735					.map_err(Self::map_unique_err_to_proxy)?;736737					approval_required = cross_sender != target_nft_owner;738739					if approval_required {740						target_owner = target_nft_owner;741742						<PalletNft<T>>::set_scoped_token_property(743							collection.id,744							nft_id,745							RMRK_SCOPE,746							Self::encode_rmrk_property::<Option<PendingTarget>>(747								PendingNftAccept,748								&Some((target_collection_id, target_nft_id.into())),749							)?,750						)?;751752						Self::insert_pending_child(753							(target_collection_id, target_nft_id.into()),754							(rmrk_collection_id, rmrk_nft_id),755						)?;756					} else {757						target_owner = T::CrossTokenAddressMapping::token_to_address(758							target_collection_id,759							target_nft_id.into(),760						);761					}762				}763			}764765			let src_nft_budget = budget::Value::new(NESTING_BUDGET);766767			<PalletNft<T>>::transfer_from(768				&collection,769				&cross_sender,770				&from,771				&target_owner,772				nft_id,773				&src_nft_budget,774			)775			.map_err(Self::map_unique_err_to_proxy)?;776777			Self::deposit_event(Event::NFTSent {778				sender,779				recipient: new_owner,780				collection_id: rmrk_collection_id,781				nft_id: rmrk_nft_id,782				approval_required,783			});784785			Ok(())786		}787788		/// Accept an NFT sent from another account to self or an owned NFT.789		///790		/// The NFT in question must be pending, and, thus, be [sent](`Pallet::send`) first.791		///792		/// # Permissions:793		/// - Token-owner-to-be794		///795		/// # Arguments:796		/// - `origin`: sender of the transaction797		/// - `rmrk_collection_id`: RMRK collection ID of the NFT to be accepted.798		/// - `rmrk_nft_id`: ID of the NFT to be accepted.799		/// - `new_owner`: Either the sender's account ID or a sender-owned NFT,800		/// whichever the accepted NFT was sent to.801		#[pallet::weight(<SelfWeightOf<T>>::accept_nft())]802		pub fn accept_nft(803			origin: OriginFor<T>,804			rmrk_collection_id: RmrkCollectionId,805			rmrk_nft_id: RmrkNftId,806			new_owner: RmrkAccountIdOrCollectionNftTuple<T::AccountId>,807		) -> DispatchResult {808			let sender = ensure_signed(origin.clone())?;809			let cross_sender = T::CrossAccountId::from_sub(sender.clone());810811			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;812			let nft_id = rmrk_nft_id.into();813814			let collection =815				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;816			collection.check_is_external()?;817818			let new_cross_owner = match new_owner {819				RmrkAccountIdOrCollectionNftTuple::AccountId(ref account_id) => {820					T::CrossAccountId::from_sub(account_id.clone())821				}822				RmrkAccountIdOrCollectionNftTuple::CollectionAndNftTuple(823					target_collection_id,824					target_nft_id,825				) => {826					let target_collection_id = Self::unique_collection_id(target_collection_id)?;827828					T::CrossTokenAddressMapping::token_to_address(829						target_collection_id,830						TokenId(target_nft_id),831					)832				}833			};834835			let budget = budget::Value::new(NESTING_BUDGET);836837			<PalletNft<T>>::transfer(838				&collection,839				&cross_sender,840				&new_cross_owner,841				nft_id,842				&budget,843			)844			.map_err(|err| {845				if err == <CommonError<T>>::UserIsNotAllowedToNest.into() {846					<Error<T>>::CannotAcceptNonOwnedNft.into()847				} else {848					Self::map_unique_err_to_proxy(err)849				}850			})?;851852			let pending_target = Self::get_nft_property_decoded::<Option<PendingTarget>>(853				collection_id,854				nft_id,855				RmrkProperty::PendingNftAccept,856			)?;857858			if let Some(pending_target) = pending_target {859				Self::remove_pending_child(pending_target, (rmrk_collection_id, rmrk_nft_id))?;860861				<PalletNft<T>>::set_scoped_token_property(862					collection.id,863					nft_id,864					RMRK_SCOPE,865					Self::encode_rmrk_property(PendingNftAccept, &None::<PendingTarget>)?,866				)?;867			}868869			Self::deposit_event(Event::NFTAccepted {870				sender,871				recipient: new_owner,872				collection_id: rmrk_collection_id,873				nft_id: rmrk_nft_id,874			});875876			Ok(())877		}878879		/// Reject an NFT sent from another account to self or owned NFT.880		/// The NFT in question will not be sent back and burnt instead.881		///882		/// The NFT in question must be pending, and, thus, be [sent](`Pallet::send`) first.883		///884		/// # Permissions:885		/// - Token-owner-to-be-not886		///887		/// # Arguments:888		/// - `origin`: sender of the transaction889		/// - `rmrk_collection_id`: RMRK ID of the NFT to be rejected.890		/// - `rmrk_nft_id`: ID of the NFT to be rejected.891		#[pallet::weight(<SelfWeightOf<T>>::reject_nft())]892		pub fn reject_nft(893			origin: OriginFor<T>,894			rmrk_collection_id: RmrkCollectionId,895			rmrk_nft_id: RmrkNftId,896		) -> DispatchResult {897			let sender = ensure_signed(origin)?;898			let cross_sender = T::CrossAccountId::from_sub(sender.clone());899900			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;901			let nft_id = rmrk_nft_id.into();902903			let collection =904				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;905			collection.check_is_external()?;906907			ensure!(908				<TokenData<T>>::get((collection_id, nft_id)).is_some(),909				<Error<T>>::NoAvailableNftId910			);911912			let pending_target = Self::get_nft_property_decoded::<Option<PendingTarget>>(913				collection_id,914				nft_id,915				RmrkProperty::PendingNftAccept,916			)?;917918			match pending_target {919				Some(pending_target) => {920					Self::remove_pending_child(pending_target, (rmrk_collection_id, rmrk_nft_id))?921				}922				None => return Err(<Error<T>>::CannotRejectNonPendingNft.into()),923			}924925			Self::destroy_nft(926				cross_sender,927				collection_id,928				nft_id,929				NESTING_BUDGET,930				<Error<T>>::CannotRejectNonOwnedNft,931			)932			.map_err(|err| Self::map_unique_err_to_proxy(err.error))?;933934			Self::deposit_event(Event::NFTRejected {935				sender,936				collection_id: rmrk_collection_id,937				nft_id: rmrk_nft_id,938			});939940			Ok(())941		}942943		/// Accept the addition of a newly created pending resource to an existing NFT.944		///945		/// This transaction is needed when a resource is created and assigned to an NFT946		/// by a non-owner, i.e. the collection issuer, with one of the947		/// [`add_...` transactions](Pallet::add_basic_resource).948		///949		/// # Permissions:950		/// - Token owner951		///952		/// # Arguments:953		/// - `origin`: sender of the transaction954		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.955		/// - `rmrk_nft_id`: ID of the NFT with a pending resource to be accepted.956		/// - `resource_id`: ID of the newly created pending resource.957		/// accept the addition of a new resource to an existing NFT958		#[pallet::weight(<SelfWeightOf<T>>::accept_resource())]959		pub fn accept_resource(960			origin: OriginFor<T>,961			rmrk_collection_id: RmrkCollectionId,962			rmrk_nft_id: RmrkNftId,963			resource_id: RmrkResourceId,964		) -> DispatchResult {965			let sender = ensure_signed(origin)?;966			let cross_sender = T::CrossAccountId::from_sub(sender);967968			let collection_id = Self::unique_collection_id(rmrk_collection_id)969				.map_err(|_| <Error<T>>::ResourceDoesntExist)?;970			let collection =971				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;972			collection.check_is_external()?;973974			let nft_id = rmrk_nft_id.into();975976			let budget = budget::Value::new(NESTING_BUDGET);977978			let nft_owner =979				<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)980					.map_err(|_| <Error<T>>::ResourceDoesntExist)?;981982			Self::try_mutate_resource_info(collection_id, nft_id, resource_id, |res| {983				ensure!(res.pending, <Error<T>>::ResourceNotPending);984				ensure!(cross_sender == nft_owner, <Error<T>>::NoPermission);985986				res.pending = false;987988				Ok(())989			})?;990991			Self::deposit_event(Event::<T>::ResourceAccepted {992				nft_id: rmrk_nft_id,993				resource_id,994			});995996			Ok(())997		}998999		/// Accept the removal of a removal-pending resource from an NFT.1000		///1001		/// This transaction is needed when a non-owner, i.e. the collection issuer,1002		/// requests a [removal](`Pallet::remove_resource`) of a resource from an NFT.1003		///1004		/// # Permissions:1005		/// - Token owner1006		///1007		/// # Arguments:1008		/// - `origin`: sender of the transaction1009		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1010		/// - `rmrk_nft_id`: ID of the NFT with a resource to be removed.1011		/// - `resource_id`: ID of the removal-pending resource.1012		#[pallet::weight(<SelfWeightOf<T>>::accept_resource_removal())]1013		pub fn accept_resource_removal(1014			origin: OriginFor<T>,1015			rmrk_collection_id: RmrkCollectionId,1016			rmrk_nft_id: RmrkNftId,1017			resource_id: RmrkResourceId,1018		) -> DispatchResult {1019			let sender = ensure_signed(origin)?;1020			let cross_sender = T::CrossAccountId::from_sub(sender);10211022			let collection_id = Self::unique_collection_id(rmrk_collection_id)1023				.map_err(|_| <Error<T>>::ResourceDoesntExist)?;1024			let collection =1025				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1026			collection.check_is_external()?;10271028			let nft_id = rmrk_nft_id.into();10291030			let budget = budget::Value::new(NESTING_BUDGET);10311032			let nft_owner =1033				<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)1034					.map_err(|_| <Error<T>>::ResourceDoesntExist)?;10351036			ensure!(cross_sender == nft_owner, <Error<T>>::NoPermission);10371038			let resource_id_key = Self::get_scoped_property_key(ResourceId(resource_id))?;10391040			let resource_info = <PalletNft<T>>::token_aux_property((1041				collection_id,1042				nft_id,1043				RMRK_SCOPE,1044				resource_id_key.clone(),1045			))1046			.ok_or(<Error<T>>::ResourceDoesntExist)?;10471048			let resource_info: RmrkResourceInfo = Self::decode_property_value(&resource_info)?;10491050			ensure!(1051				resource_info.pending_removal,1052				<Error<T>>::ResourceNotPending1053			);10541055			<PalletNft<T>>::remove_token_aux_property(1056				collection_id,1057				nft_id,1058				RMRK_SCOPE,1059				resource_id_key,1060			);10611062			if let RmrkResourceTypes::Composable(resource) = resource_info.resource {1063				let base_id = resource.base;10641065				Self::remove_associated_base_id(collection_id, nft_id, base_id)?;1066			}10671068			Self::deposit_event(Event::<T>::ResourceRemovalAccepted {1069				nft_id: rmrk_nft_id,1070				resource_id,1071			});10721073			Ok(())1074		}10751076		/// Add or edit a custom user property, a key-value pair, describing the metadata1077		/// of a token or a collection, on either one of these.1078		///1079		/// Note that in this proxy implementation many details regarding RMRK are stored1080		/// as scoped properties prefixed with "rmrk:", normally inaccessible1081		/// to external transactions and RPCs.1082		///1083		/// # Permissions:1084		/// - Collection issuer - in case of collection property1085		/// - Token owner - in case of NFT property1086		///1087		/// # Arguments:1088		/// - `origin`: sender of the transaction1089		/// - `rmrk_collection_id`: RMRK collection ID.1090		/// - `maybe_nft_id`: Optional ID of the NFT. If left empty, then the property is set for the collection.1091		/// - `key`: Key of the custom property to be referenced by.1092		/// - `value`: Value of the custom property to be stored.1093		#[pallet::weight(<SelfWeightOf<T>>::set_property())]1094		pub fn set_property(1095			origin: OriginFor<T>,1096			#[pallet::compact] rmrk_collection_id: RmrkCollectionId,1097			maybe_nft_id: Option<RmrkNftId>,1098			key: RmrkKeyString,1099			value: RmrkValueString,1100		) -> DispatchResult {1101			let sender = ensure_signed(origin)?;1102			let sender = T::CrossAccountId::from_sub(sender);11031104			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1105			let collection =1106				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1107			collection.check_is_external()?;11081109			let budget = budget::Value::new(NESTING_BUDGET);11101111			match maybe_nft_id {1112				Some(nft_id) => {1113					let token_id: TokenId = nft_id.into();11141115					Self::ensure_nft_type(collection_id, token_id, NftType::Regular)?;1116					Self::ensure_nft_owner(collection_id, token_id, &sender, &budget)?;11171118					<PalletNft<T>>::set_scoped_token_property(1119						collection_id,1120						token_id,1121						RMRK_SCOPE,1122						Self::encode_rmrk_property(UserProperty(key.as_slice()), &value)?,1123					)?;1124				}1125				None => {1126					let collection = Self::get_typed_nft_collection(1127						collection_id,1128						misc::CollectionType::Regular,1129					)?;11301131					Self::check_collection_owner(&collection, &sender)?;11321133					<PalletCommon<T>>::set_scoped_collection_property(1134						collection_id,1135						RMRK_SCOPE,1136						Self::encode_rmrk_property(UserProperty(key.as_slice()), &value)?,1137					)?;1138				}1139			}11401141			Self::deposit_event(Event::PropertySet {1142				collection_id: rmrk_collection_id,1143				maybe_nft_id,1144				key,1145				value,1146			});11471148			Ok(())1149		}11501151		/// Set a different order of resource priorities for an NFT. Priorities can be used,1152		/// for example, for order of rendering.1153		///1154		/// Note that the priorities are not updated automatically, and are an empty vector1155		/// by default. There is no pre-set definition for the order to be particular,1156		/// it can be interpreted arbitrarily use-case by use-case.1157		///1158		/// # Permissions:1159		/// - Token owner1160		///1161		/// # Arguments:1162		/// - `origin`: sender of the transaction1163		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1164		/// - `rmrk_nft_id`: ID of the NFT to rearrange resource priorities for.1165		/// - `priorities`: Ordered vector of resource IDs.1166		#[pallet::weight(<SelfWeightOf<T>>::set_priority())]1167		pub fn set_priority(1168			origin: OriginFor<T>,1169			rmrk_collection_id: RmrkCollectionId,1170			rmrk_nft_id: RmrkNftId,1171			priorities: BoundedVec<RmrkResourceId, RmrkMaxPriorities>,1172		) -> DispatchResult {1173			let sender = ensure_signed(origin)?;1174			let sender = T::CrossAccountId::from_sub(sender);11751176			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1177			let nft_id = rmrk_nft_id.into();11781179			let collection =1180				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1181			collection.check_is_external()?;11821183			let budget = budget::Value::new(NESTING_BUDGET);11841185			Self::ensure_nft_type(collection_id, nft_id, NftType::Regular)?;1186			Self::ensure_nft_owner(collection_id, nft_id, &sender, &budget)?;11871188			<PalletNft<T>>::set_scoped_token_property(1189				collection_id,1190				nft_id,1191				RMRK_SCOPE,1192				Self::encode_rmrk_property(ResourcePriorities, &priorities.into_inner())?,1193			)?;11941195			Self::deposit_event(Event::<T>::PrioritySet {1196				collection_id: rmrk_collection_id,1197				nft_id: rmrk_nft_id,1198			});11991200			Ok(())1201		}12021203		/// Create and set/propose a basic resource for an NFT.1204		///1205		/// A basic resource is the simplest, lacking a Base and anything that comes with it.1206		/// See RMRK docs for more information and examples.1207		///1208		/// # Permissions:1209		/// - Collection issuer - if not the token owner, adding the resource will warrant1210		/// the owner's [acceptance](Pallet::accept_resource).1211		///1212		/// # Arguments:1213		/// - `origin`: sender of the transaction1214		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1215		/// - `nft_id`: ID of the NFT to assign a resource to.1216		/// - `resource`: Data of the resource to be created.1217		#[pallet::weight(<SelfWeightOf<T>>::add_basic_resource())]1218		pub fn add_basic_resource(1219			origin: OriginFor<T>,1220			rmrk_collection_id: RmrkCollectionId,1221			nft_id: RmrkNftId,1222			resource: RmrkBasicResource,1223		) -> DispatchResult {1224			let sender = ensure_signed(origin.clone())?;12251226			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1227			let collection =1228				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1229			collection.check_is_external()?;12301231			let resource_id = Self::resource_add(1232				sender,1233				collection_id,1234				nft_id.into(),1235				RmrkResourceTypes::Basic(resource),1236			)?;12371238			Self::deposit_event(Event::ResourceAdded {1239				nft_id,1240				resource_id,1241			});1242			Ok(())1243		}12441245		/// Create and set/propose a composable resource for an NFT.1246		///1247		/// A composable resource links to a Base and has a subset of its Parts it is composed of.1248		/// See RMRK docs for more information and examples.1249		///1250		/// # Permissions:1251		/// - Collection issuer - if not the token owner, adding the resource will warrant1252		/// the owner's [acceptance](Pallet::accept_resource).1253		///1254		/// # Arguments:1255		/// - `origin`: sender of the transaction1256		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1257		/// - `nft_id`: ID of the NFT to assign a resource to.1258		/// - `resource`: Data of the resource to be created.1259		#[pallet::weight(<SelfWeightOf<T>>::add_composable_resource())]1260		pub fn add_composable_resource(1261			origin: OriginFor<T>,1262			rmrk_collection_id: RmrkCollectionId,1263			nft_id: RmrkNftId,1264			resource: RmrkComposableResource,1265		) -> DispatchResult {1266			let sender = ensure_signed(origin.clone())?;12671268			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1269			let collection =1270				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1271			collection.check_is_external()?;12721273			let base_id = resource.base;12741275			let resource_id = Self::resource_add(1276				sender,1277				collection_id,1278				nft_id.into(),1279				RmrkResourceTypes::Composable(resource),1280			)?;12811282			<PalletNft<T>>::try_mutate_token_aux_property(1283				collection_id,1284				nft_id.into(),1285				RMRK_SCOPE,1286				Self::get_scoped_property_key(AssociatedBases)?,1287				|value| -> DispatchResult {1288					let mut bases: BasesMap = match value {1289						Some(value) => Self::decode_property_value(value)?,1290						None => BasesMap::new(),1291					};12921293					*bases.entry(base_id).or_insert(0) += 1;12941295					*value = Some(Self::encode_property_value(&bases)?);1296					Ok(())1297				},1298			)?;12991300			Self::deposit_event(Event::ResourceAdded {1301				nft_id,1302				resource_id,1303			});1304			Ok(())1305		}13061307		/// Create and set/propose a slot resource for an NFT.1308		///1309		/// A slot resource links to a Base and a slot ID in it which it can fit into.1310		/// See RMRK docs for more information and examples.1311		///1312		/// # Permissions:1313		/// - Collection issuer - if not the token owner, adding the resource will warrant1314		/// the owner's [acceptance](Pallet::accept_resource).1315		///1316		/// # Arguments:1317		/// - `origin`: sender of the transaction1318		/// - `rmrk_collection_id`: RMRK collection ID of the NFT.1319		/// - `nft_id`: ID of the NFT to assign a resource to.1320		/// - `resource`: Data of the resource to be created.1321		#[pallet::weight(<SelfWeightOf<T>>::add_slot_resource())]1322		pub fn add_slot_resource(1323			origin: OriginFor<T>,1324			rmrk_collection_id: RmrkCollectionId,1325			nft_id: RmrkNftId,1326			resource: RmrkSlotResource,1327		) -> DispatchResult {1328			let sender = ensure_signed(origin.clone())?;13291330			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1331			let collection =1332				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1333			collection.check_is_external()?;13341335			let resource_id = Self::resource_add(1336				sender,1337				collection_id,1338				nft_id.into(),1339				RmrkResourceTypes::Slot(resource),1340			)?;13411342			Self::deposit_event(Event::ResourceAdded {1343				nft_id,1344				resource_id,1345			});1346			Ok(())1347		}13481349		/// Remove and erase a resource from an NFT.1350		///1351		/// If the sender does not own the NFT, then it will be pending confirmation,1352		/// and will have to be [accepted](Pallet::accept_resource_removal) by the token owner.1353		///1354		/// # Permissions1355		/// - Collection issuer1356		///1357		/// # Arguments1358		/// - `origin`: sender of the transaction1359		/// - `rmrk_collection_id`: RMRK ID of a collection to which the NFT making use of the resource belongs to.1360		/// - `nft_id`: ID of the NFT with a resource to be removed.1361		/// - `resource_id`: ID of the resource to be removed.1362		#[pallet::weight(<SelfWeightOf<T>>::remove_resource())]1363		pub fn remove_resource(1364			origin: OriginFor<T>,1365			rmrk_collection_id: RmrkCollectionId,1366			nft_id: RmrkNftId,1367			resource_id: RmrkResourceId,1368		) -> DispatchResult {1369			let sender = ensure_signed(origin.clone())?;13701371			let collection_id = Self::unique_collection_id(rmrk_collection_id)?;1372			let collection =1373				Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1374			collection.check_is_external()?;13751376			Self::resource_remove(sender, collection_id, nft_id.into(), resource_id)?;13771378			Self::deposit_event(Event::ResourceRemoval {1379				nft_id,1380				resource_id,1381			});1382			Ok(())1383		}1384	}1385}13861387impl<T: Config> Pallet<T> {1388	/// Transform one of possible RMRK keys into a byte key with a RMRK scope.1389	pub fn get_scoped_property_key(rmrk_key: RmrkProperty) -> Result<PropertyKey, DispatchError> {1390		let key = rmrk_key.to_key::<T>()?;13911392		let scoped_key = RMRK_SCOPE1393			.apply(key)1394			.map_err(|_| <Error<T>>::RmrkPropertyKeyIsTooLong)?;13951396		Ok(scoped_key)1397	}13981399	/// Form a Unique property, transforming a RMRK key into bytes (without assigning the scope yet)1400	/// and encoding the value from an arbitrary type into bytes.1401	pub fn encode_rmrk_property<E: Encode>(1402		rmrk_key: RmrkProperty,1403		value: &E,1404	) -> Result<Property, DispatchError> {1405		let key = rmrk_key.to_key::<T>()?;14061407		let value = Self::encode_property_value(value)?;14081409		let property = Property { key, value };14101411		Ok(property)1412	}14131414	/// Encode property value from an arbitrary type into bytes for storage.1415	pub fn encode_property_value<E: Encode, S: Get<u32>>(1416		value: &E,1417	) -> Result<BoundedBytes<S>, DispatchError> {1418		let value = value1419			.encode()1420			.try_into()1421			.map_err(|_| <Error<T>>::RmrkPropertyValueIsTooLong)?;14221423		Ok(value)1424	}14251426	/// Decode property value from bytes into an arbitrary type.1427	pub fn decode_property_value<D: Decode, S: Get<u32>>(1428		vec: &BoundedBytes<S>,1429	) -> Result<D, DispatchError> {1430		vec.decode()1431			.map_err(|_| <Error<T>>::UnableToDecodeRmrkData.into())1432	}14331434	/// Change the limit of a property value byte vector.1435	pub fn rebind<L, S>(vec: &BoundedVec<u8, L>) -> Result<BoundedVec<u8, S>, DispatchError>1436	where1437		BoundedVec<u8, S>: TryFrom<Vec<u8>>,1438	{1439		vec.rebind()1440			.map_err(|_| <Error<T>>::RmrkPropertyValueIsTooLong.into())1441	}14421443	/// Initialize a new NFT collection with certain RMRK-scoped properties.1444	///1445	/// See [`init_collection`](pallet_nonfungible::pallet::Pallet::init_collection) for more details.1446	fn init_collection(1447		sender: T::CrossAccountId,1448		data: CreateCollectionData<T::AccountId>,1449		properties: impl Iterator<Item = Property>,1450	) -> Result<CollectionId, DispatchError> {1451		let collection_id = <PalletNft<T>>::init_collection(1452			sender.clone(),1453			sender,1454			data,1455			up_data_structs::CollectionFlags {1456				external: true,1457				..Default::default()1458			},1459		);14601461		if let Err(DispatchError::Arithmetic(_)) = &collection_id {1462			return Err(<Error<T>>::NoAvailableCollectionId.into());1463		}14641465		<PalletCommon<T>>::set_scoped_collection_properties(1466			collection_id?,1467			RMRK_SCOPE,1468			properties,1469		)?;14701471		collection_id1472	}14731474	/// Mint a new NFT with certain RMRK-scoped properties. Sender must be the collection owner.1475	///1476	/// See [`create_item`](pallet_nonfungible::pallet::Pallet::create_item) for more details.1477	pub fn create_nft(1478		sender: &T::CrossAccountId,1479		owner: &T::CrossAccountId,1480		collection: &NonfungibleHandle<T>,1481		properties: impl Iterator<Item = Property>,1482	) -> Result<TokenId, DispatchError> {1483		let data = CreateNftExData {1484			properties: BoundedVec::default(),1485			owner: owner.clone(),1486		};14871488		let budget = budget::Value::new(NESTING_BUDGET);14891490		<PalletNft<T>>::create_item(collection, sender, data, &budget)?;14911492		let nft_id = <PalletNft<T>>::current_token_id(collection.id);14931494		<PalletNft<T>>::set_scoped_token_properties(collection.id, nft_id, RMRK_SCOPE, properties)?;14951496		Ok(nft_id)1497	}14981499	/// Burn an NFT, along with its nested children, limited by `max_burns`. The sender must be the token owner.1500	///1501	/// See [`burn_recursively`](pallet_nonfungible::pallet::Pallet::burn_recursively) for more details.1502	fn destroy_nft(1503		sender: T::CrossAccountId,1504		collection_id: CollectionId,1505		token_id: TokenId,1506		max_burns: u32,1507		error_if_not_owned: Error<T>,1508	) -> DispatchResultWithPostInfo {1509		let collection =1510			Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;15111512		let token_data =1513			<TokenData<T>>::get((collection_id, token_id)).ok_or(<Error<T>>::NoAvailableNftId)?;15141515		let from = token_data.owner;15161517		let owner_check_budget = budget::Value::new(NESTING_BUDGET);15181519		ensure!(1520			<PalletStructure<T>>::check_indirectly_owned(1521				sender.clone(),1522				collection_id,1523				token_id,1524				None,1525				&owner_check_budget1526			)?,1527			error_if_not_owned,1528		);15291530		let burns_budget = budget::Value::new(max_burns);1531		let breadth_budget = budget::Value::new(max_burns);15321533		<PalletNft<T>>::burn_recursively(1534			&collection,1535			&from,1536			token_id,1537			&burns_budget,1538			&breadth_budget,1539		)1540	}15411542	/// Add a sent token pending acceptance to the target owning token as a property.1543	fn insert_pending_child(1544		target: (CollectionId, TokenId),1545		child: (RmrkCollectionId, RmrkNftId),1546	) -> DispatchResult {1547		Self::mutate_pending_children(target, |pending_children| {1548			pending_children.insert(child);1549		})1550	}15511552	/// Remove a sent token pending acceptance from the target token's properties.1553	fn remove_pending_child(1554		target: (CollectionId, TokenId),1555		child: (RmrkCollectionId, RmrkNftId),1556	) -> DispatchResult {1557		Self::mutate_pending_children(target, |pending_children| {1558			pending_children.remove(&child);1559		})1560	}15611562	/// Apply a mutation to the property of a token containing sent tokens1563	/// that are currently pending acceptance.1564	fn mutate_pending_children(1565		(target_collection_id, target_nft_id): (CollectionId, TokenId),1566		f: impl FnOnce(&mut PendingChildrenSet),1567	) -> DispatchResult {1568		<PalletNft<T>>::try_mutate_token_aux_property(1569			target_collection_id,1570			target_nft_id,1571			RMRK_SCOPE,1572			Self::get_scoped_property_key(PendingChildren)?,1573			|pending_children| -> DispatchResult {1574				let mut map = match pending_children {1575					Some(map) => Self::decode_property_value(map)?,1576					None => PendingChildrenSet::new(),1577				};15781579				f(&mut map);15801581				*pending_children = Some(Self::encode_property_value(&map)?);15821583				Ok(())1584			},1585		)1586	}15871588	/// Get an iterator from a token's property containing tokens sent to it1589	/// that are currently pending acceptance.1590	fn iterate_pending_children(1591		collection_id: CollectionId,1592		nft_id: TokenId,1593	) -> Result<impl Iterator<Item = PendingChild>, DispatchError> {1594		let property = <PalletNft<T>>::token_aux_property((1595			collection_id,1596			nft_id,1597			RMRK_SCOPE,1598			Self::get_scoped_property_key(PendingChildren)?,1599		));16001601		let pending_children = match property {1602			Some(map) => Self::decode_property_value(&map)?,1603			None => PendingChildrenSet::new(),1604		};16051606		Ok(pending_children.into_iter())1607	}16081609	/// Get incremented resource ID from within an NFT's properties and store the new latest ID.1610	/// Thus, the returned resource ID should be used.1611	///1612	/// Resource IDs are unique only across an NFT.1613	fn acquire_next_resource_id(1614		collection_id: CollectionId,1615		nft_id: TokenId,1616	) -> Result<RmrkResourceId, DispatchError> {1617		let resource_id: RmrkResourceId =1618			Self::get_nft_property_decoded(collection_id, nft_id, NextResourceId)?;16191620		let next_id = resource_id1621			.checked_add(1)1622			.ok_or(<Error<T>>::NoAvailableResourceId)?;16231624		<PalletNft<T>>::set_scoped_token_property(1625			collection_id,1626			nft_id,1627			RMRK_SCOPE,1628			Self::encode_rmrk_property(NextResourceId, &next_id)?,1629		)?;16301631		Ok(resource_id)1632	}16331634	/// Create and add a resource for a regular NFT, mark it as pending if the sender1635	/// is not the token owner. The sender must be the collection owner.1636	fn resource_add(1637		sender: T::AccountId,1638		collection_id: CollectionId,1639		nft_id: TokenId,1640		resource: RmrkResourceTypes,1641	) -> Result<RmrkResourceId, DispatchError> {1642		let collection =1643			Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1644		ensure!(collection.owner == sender, Error::<T>::NoPermission);16451646		let sender = T::CrossAccountId::from_sub(sender);1647		let budget = budget::Value::new(NESTING_BUDGET);16481649		let nft_owner = <PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)1650			.map_err(Self::map_unique_err_to_proxy)?;16511652		let pending = sender != nft_owner;16531654		let id = Self::acquire_next_resource_id(collection_id, nft_id)?;16551656		let resource_info = RmrkResourceInfo {1657			id,1658			resource,1659			pending,1660			pending_removal: false,1661		};16621663		<PalletNft<T>>::try_mutate_token_aux_property(1664			collection_id,1665			nft_id,1666			RMRK_SCOPE,1667			Self::get_scoped_property_key(ResourceId(id))?,1668			|value| -> DispatchResult {1669				*value = Some(Self::encode_property_value(&resource_info)?);16701671				Ok(())1672			},1673		)?;16741675		Ok(id)1676	}16771678	/// Designate a resource for erasure from an NFT, and remove it if the sender is the token owner.1679	/// The sender must be the collection owner.1680	fn resource_remove(1681		sender: T::AccountId,1682		collection_id: CollectionId,1683		nft_id: TokenId,1684		resource_id: RmrkResourceId,1685	) -> DispatchResult {1686		let collection =1687			Self::get_typed_nft_collection(collection_id, misc::CollectionType::Regular)?;1688		ensure!(collection.owner == sender, Error::<T>::NoPermission);16891690		let resource_id_key = Self::get_scoped_property_key(ResourceId(resource_id))?;16911692		let resource = <PalletNft<T>>::token_aux_property((1693			collection_id,1694			nft_id,1695			RMRK_SCOPE,1696			resource_id_key.clone(),1697		))1698		.ok_or(<Error<T>>::ResourceDoesntExist)?;16991700		let resource_info: RmrkResourceInfo = Self::decode_property_value(&resource)?;17011702		let budget = up_data_structs::budget::Value::new(NESTING_BUDGET);1703		let topmost_owner =1704			<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)?;17051706		let sender = T::CrossAccountId::from_sub(sender);1707		if topmost_owner == sender {1708			<PalletNft<T>>::remove_token_aux_property(1709				collection_id,1710				nft_id,1711				RMRK_SCOPE,1712				Self::get_scoped_property_key(ResourceId(resource_id))?,1713			);17141715			if let RmrkResourceTypes::Composable(resource) = resource_info.resource {1716				let base_id = resource.base;17171718				Self::remove_associated_base_id(collection_id, nft_id, base_id)?;1719			}1720		} else {1721			Self::try_mutate_resource_info(collection_id, nft_id, resource_id, |res| {1722				res.pending_removal = true;17231724				Ok(())1725			})?;1726		}17271728		Ok(())1729	}17301731	/// Remove a Base ID from an NFT if they are associated.1732	/// The Base itself is deleted if the number of associated NFTs reaches 0.1733	fn remove_associated_base_id(1734		collection_id: CollectionId,1735		nft_id: TokenId,1736		base_id: RmrkBaseId,1737	) -> DispatchResult {1738		<PalletNft<T>>::try_mutate_token_aux_property(1739			collection_id,1740			nft_id,1741			RMRK_SCOPE,1742			Self::get_scoped_property_key(AssociatedBases)?,1743			|value| -> DispatchResult {1744				let mut bases: BasesMap = match value {1745					Some(value) => Self::decode_property_value(value)?,1746					None => BasesMap::new(),1747				};17481749				let remaining = bases.get(&base_id);17501751				if let Some(remaining) = remaining {1752					if let Some(0) | None = remaining.checked_sub(1) {1753						bases.remove(&base_id);1754					}1755				}17561757				*value = Some(Self::encode_property_value(&bases)?);1758				Ok(())1759			},1760		)1761	}17621763	/// Apply a mutation to a resource stored in the token properties of an NFT.1764	fn try_mutate_resource_info(1765		collection_id: CollectionId,1766		nft_id: TokenId,1767		resource_id: RmrkResourceId,1768		f: impl FnOnce(&mut RmrkResourceInfo) -> DispatchResult,1769	) -> DispatchResult {1770		<PalletNft<T>>::try_mutate_token_aux_property(1771			collection_id,1772			nft_id,1773			RMRK_SCOPE,1774			Self::get_scoped_property_key(ResourceId(resource_id))?,1775			|value| match value {1776				Some(value) => {1777					let mut resource_info: RmrkResourceInfo = Self::decode_property_value(value)?;17781779					f(&mut resource_info)?;17801781					*value = Self::encode_property_value(&resource_info)?;17821783					Ok(())1784				}1785				None => Err(<Error<T>>::ResourceDoesntExist.into()),1786			},1787		)1788	}17891790	/// Change the owner of an NFT collection, ensuring that the sender is the current owner.1791	fn change_collection_owner(1792		collection_id: CollectionId,1793		collection_type: misc::CollectionType,1794		sender: T::AccountId,1795		new_owner: T::AccountId,1796	) -> DispatchResult {1797		let collection = Self::get_typed_nft_collection(collection_id, collection_type)?;1798		Self::check_collection_owner(&collection, &T::CrossAccountId::from_sub(sender))?;17991800		let mut collection = collection.into_inner();18011802		collection.owner = new_owner;1803		collection.save()1804	}18051806	/// Ensure that an account is the collection owner/issuer, return an error if not.1807	pub fn check_collection_owner(1808		collection: &NonfungibleHandle<T>,1809		account: &T::CrossAccountId,1810	) -> DispatchResult {1811		collection1812			.check_is_owner(account)1813			.map_err(Self::map_unique_err_to_proxy)1814	}18151816	/// Get the latest yet-unused RMRK collection index from the storage.1817	pub fn last_collection_idx() -> RmrkCollectionId {1818		<CollectionIndex<T>>::get()1819	}18201821	/// Get a mapping from a RMRK collection ID to its corresponding Unique collection ID.1822	pub fn unique_collection_id(1823		rmrk_collection_id: RmrkCollectionId,1824	) -> Result<CollectionId, DispatchError> {1825		<UniqueCollectionId<T>>::try_get(rmrk_collection_id)1826			.map_err(|_| <Error<T>>::CollectionUnknown.into())1827	}18281829	/// Get a mapping from a Unique collection ID to its RMRK collection ID counterpart, if it exists.1830	pub fn rmrk_collection_id(1831		unique_collection_id: CollectionId,1832	) -> Result<RmrkCollectionId, DispatchError> {1833		Self::get_collection_property_decoded(unique_collection_id, RmrkInternalCollectionId)1834	}18351836	/// Fetch a Unique NFT collection.1837	pub fn get_nft_collection(1838		collection_id: CollectionId,1839	) -> Result<NonfungibleHandle<T>, DispatchError> {1840		let collection = <CollectionHandle<T>>::try_get(collection_id)1841			.map_err(|_| <Error<T>>::CollectionUnknown)?;18421843		match collection.mode {1844			CollectionMode::NFT => Ok(NonfungibleHandle::cast(collection)),1845			_ => Err(<Error<T>>::CollectionUnknown.into()),1846		}1847	}18481849	/// Check if an NFT collection with such an ID exists.1850	pub fn collection_exists(collection_id: CollectionId) -> bool {1851		<CollectionHandle<T>>::try_get(collection_id).is_ok()1852	}18531854	/// Fetch and decode a RMRK-scoped collection property value in bytes.1855	pub fn get_collection_property(1856		collection_id: CollectionId,1857		key: RmrkProperty,1858	) -> Result<PropertyValue, DispatchError> {1859		let collection_property = <PalletCommon<T>>::collection_properties(collection_id)1860			.get(&Self::get_scoped_property_key(key)?)1861			.ok_or(<Error<T>>::CollectionUnknown)?1862			.clone();18631864		Ok(collection_property)1865	}18661867	/// Fetch a RMRK-scoped collection property and decode it from bytes into an appropriate type.1868	pub fn get_collection_property_decoded<V: Decode>(1869		collection_id: CollectionId,1870		key: RmrkProperty,1871	) -> Result<V, DispatchError> {1872		Self::decode_property_value(&Self::get_collection_property(collection_id, key)?)1873	}18741875	/// Get the type of a collection stored as a scoped property.1876	///1877	/// RMRK Core proxy differentiates between regular collections as well as RMRK Bases as collections.1878	pub fn get_collection_type(1879		collection_id: CollectionId,1880	) -> Result<misc::CollectionType, DispatchError> {1881		Self::get_collection_property_decoded(collection_id, CollectionType).map_err(|err| {1882			if err != <Error<T>>::CollectionUnknown.into() {1883				<Error<T>>::CorruptedCollectionType.into()1884			} else {1885				err1886			}1887		})1888	}18891890	/// Ensure that the type of the collection equals the provided type,1891	/// otherwise return an error.1892	pub fn ensure_collection_type(1893		collection_id: CollectionId,1894		collection_type: misc::CollectionType,1895	) -> DispatchResult {1896		let actual_type = Self::get_collection_type(collection_id)?;1897		ensure!(1898			actual_type == collection_type,1899			<CommonError<T>>::NoPermission1900		);19011902		Ok(())1903	}19041905	/// Fetch an NFT collection, but make sure it has the appropriate type.1906	pub fn get_typed_nft_collection(1907		collection_id: CollectionId,1908		collection_type: misc::CollectionType,1909	) -> Result<NonfungibleHandle<T>, DispatchError> {1910		Self::ensure_collection_type(collection_id, collection_type)?;19111912		Self::get_nft_collection(collection_id)1913	}19141915	/// Same as [`get_typed_nft_collection`](crate::pallet::Pallet::get_typed_nft_collection),1916	/// but also return the Unique collection ID.1917	pub fn get_typed_nft_collection_mapped(1918		rmrk_collection_id: RmrkCollectionId,1919		collection_type: misc::CollectionType,1920	) -> Result<(NonfungibleHandle<T>, CollectionId), DispatchError> {1921		let unique_collection_id = match collection_type {1922			misc::CollectionType::Regular => Self::unique_collection_id(rmrk_collection_id)?,1923			_ => rmrk_collection_id.into(),1924		};19251926		let collection = Self::get_typed_nft_collection(unique_collection_id, collection_type)?;19271928		Ok((collection, unique_collection_id))1929	}19301931	/// Fetch and decode a RMRK-scoped NFT property value in bytes.1932	pub fn get_nft_property(1933		collection_id: CollectionId,1934		nft_id: TokenId,1935		key: RmrkProperty,1936	) -> Result<PropertyValue, DispatchError> {1937		let nft_property = <PalletNft<T>>::token_properties((collection_id, nft_id))1938			.get(&Self::get_scoped_property_key(key)?)1939			.ok_or(<Error<T>>::RmrkPropertyIsNotFound)?1940			.clone();19411942		Ok(nft_property)1943	}19441945	/// Fetch a RMRK-scoped NFT property and decode it from bytes into an appropriate type.1946	pub fn get_nft_property_decoded<V: Decode>(1947		collection_id: CollectionId,1948		nft_id: TokenId,1949		key: RmrkProperty,1950	) -> Result<V, DispatchError> {1951		Self::decode_property_value(&Self::get_nft_property(collection_id, nft_id, key)?)1952	}19531954	/// Check that an NFT exists.1955	pub fn nft_exists(collection_id: CollectionId, nft_id: TokenId) -> bool {1956		<TokenData<T>>::contains_key((collection_id, nft_id))1957	}19581959	/// Get the type of an NFT stored as a scoped property.1960	///1961	/// RMRK Core proxy differentiates between regular NFTs, and RMRK Parts and Themes.1962	pub fn get_nft_type(1963		collection_id: CollectionId,1964		token_id: TokenId,1965	) -> Result<NftType, DispatchError> {1966		Self::get_nft_property_decoded(collection_id, token_id, TokenType)1967			.map_err(|_| <Error<T>>::NoAvailableNftId.into())1968	}19691970	/// Ensure that the type of the NFT equals the provided type, otherwise return an error.1971	pub fn ensure_nft_type(1972		collection_id: CollectionId,1973		token_id: TokenId,1974		nft_type: NftType,1975	) -> DispatchResult {1976		let actual_type = Self::get_nft_type(collection_id, token_id)?;1977		ensure!(actual_type == nft_type, <Error<T>>::NoPermission);19781979		Ok(())1980	}19811982	/// Ensure that an account is the owner of the token, either directly1983	/// or at the top of the nesting hierarchy; return an error if it is not.1984	pub fn ensure_nft_owner(1985		collection_id: CollectionId,1986		token_id: TokenId,1987		possible_owner: &T::CrossAccountId,1988		nesting_budget: &dyn budget::Budget,1989	) -> DispatchResult {1990		let is_owned = <PalletStructure<T>>::check_indirectly_owned(1991			possible_owner.clone(),1992			collection_id,1993			token_id,1994			None,1995			nesting_budget,1996		)1997		.map_err(Self::map_unique_err_to_proxy)?;19981999		ensure!(is_owned, <Error<T>>::NoPermission);20002001		Ok(())2002	}20032004	/// Fetch non-scoped properties of a collection or a token that match the filter keys supplied,2005	/// or, if None are provided, return all non-scoped properties.2006	pub fn filter_user_properties<Key, Value, R, Mapper>(2007		collection_id: CollectionId,2008		token_id: Option<TokenId>,2009		filter_keys: Option<Vec<RmrkPropertyKey>>,2010		mapper: Mapper,2011	) -> Result<Vec<R>, DispatchError>2012	where2013		Key: TryFrom<RmrkPropertyKey> + AsRef<[u8]>,2014		Value: Decode + Default,2015		Mapper: Fn(Key, Value) -> R,2016	{2017		filter_keys2018			.map(|keys| {2019				let properties = keys2020					.into_iter()2021					.filter_map(|key| {2022						let key: Key = key.try_into().ok()?;20232024						let value = match token_id {2025							Some(token_id) => Self::get_nft_property_decoded(2026								collection_id,2027								token_id,2028								UserProperty(key.as_ref()),2029							),2030							None => Self::get_collection_property_decoded(2031								collection_id,2032								UserProperty(key.as_ref()),2033							),2034						}2035						.ok()?;20362037						Some(mapper(key, value))2038					})2039					.collect();20402041				Ok(properties)2042			})2043			.unwrap_or_else(|| {2044				let properties =2045					Self::iterate_user_properties(collection_id, token_id, mapper)?.collect();20462047				Ok(properties)2048			})2049	}20502051	/// Get all non-scoped properties from a collection or a token, and apply some transformation,2052	/// supplied by `mapper`, to each key-value pair.2053	pub fn iterate_user_properties<Key, Value, R, Mapper>(2054		collection_id: CollectionId,2055		token_id: Option<TokenId>,2056		mapper: Mapper,2057	) -> Result<impl Iterator<Item = R>, DispatchError>2058	where2059		Key: TryFrom<RmrkPropertyKey> + AsRef<[u8]>,2060		Value: Decode + Default,2061		Mapper: Fn(Key, Value) -> R,2062	{2063		let properties = match token_id {2064			Some(token_id) => <PalletNft<T>>::token_properties((collection_id, token_id)),2065			None => <PalletCommon<T>>::collection_properties(collection_id),2066		};20672068		let properties = properties.into_iter().filter_map(move |(key, value)| {2069			let key = strip_key_prefix(&key, USER_PROPERTY_PREFIX)?;20702071			let key: Key = key.to_vec().try_into().ok()?;2072			let value: Value = value.decode().ok()?;20732074			Some(mapper(key, value))2075		});20762077		Ok(properties)2078	}20792080	/// Match Unique errors to RMRK's own and return the RMRK error if a match is successful.2081	fn map_unique_err_to_proxy(err: DispatchError) -> DispatchError {2082		map_unique_err_to_proxy! {2083			match err {2084				CommonError::NoPermission => NoPermission,2085				CommonError::CollectionTokenLimitExceeded => CollectionFullOrLocked,2086				CommonError::PublicMintingNotAllowed => NoPermission,2087				CommonError::TokenNotFound => NoAvailableNftId,2088				CommonError::ApprovedValueTooLow => NoPermission,2089				CommonError::CantDestroyNotEmptyCollection => CollectionNotEmpty,2090				StructureError::TokenNotFound => NoAvailableNftId,2091				StructureError::OuroborosDetected => CannotSendToDescendentOrSelf,2092			}2093		}2094	}2095}
modifiedpallets/proxy-rmrk-equip/src/lib.rsdiffbeforeafterboth
--- a/pallets/proxy-rmrk-equip/src/lib.rs
+++ b/pallets/proxy-rmrk-equip/src/lib.rs
@@ -254,7 +254,10 @@
 				cross_sender.clone(),
 				cross_sender.clone(),
 				data,
-				true,
+				up_data_structs::CollectionFlags {
+					external: true,
+					..Default::default()
+				},
 			);
 
 			if let Err(DispatchError::Arithmetic(_)) = &collection_id_res {
modifiedpallets/refungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -21,19 +21,15 @@
 
 extern crate alloc;
 
-use alloc::string::ToString;
 use core::{
 	char::{REPLACEMENT_CHARACTER, decode_utf16},
 	convert::TryInto,
 };
 use evm_coder::{ToLog, execution::*, generate_stubgen, solidity, solidity_interface, types::*, weight};
-use frame_support::BoundedBTreeMap;
+use frame_support::{BoundedBTreeMap, BoundedVec};
 use pallet_common::{
 	CollectionHandle, CollectionPropertyPermissions,
-	erc::{
-		CommonEvmHandler, CollectionCall,
-		static_property::{key, value as property_value},
-	},
+	erc::{CommonEvmHandler, CollectionCall, static_property::key},
 };
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::{call, dispatch_to_evm};
@@ -191,7 +187,7 @@
 }
 
 #[derive(ToLog)]
-pub enum ERC721MintableEvents {
+pub enum ERC721UniqueMintableEvents {
 	/// @dev Not supported
 	#[allow(dead_code)]
 	MintingFinished {},
@@ -199,16 +195,18 @@
 
 #[solidity_interface(name = ERC721Metadata)]
 impl<T: Config> RefungibleHandle<T> {
-	/// @notice A descriptive name for a collection of RFTs in this contract
-	fn name(&self) -> Result<string> {
-		Ok(decode_utf16(self.name.iter().copied())
-			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))
-			.collect::<string>())
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	#[solidity(hide, rename_selector = "name")]
+	fn name_proxy(&self) -> Result<string> {
+		self.name()
 	}
 
-	/// @notice An abbreviated name for RFTs in this contract
-	fn symbol(&self) -> Result<string> {
-		Ok(string::from_utf8_lossy(&self.token_prefix).into())
+	/// @notice An abbreviated name for NFTs in this contract
+	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	#[solidity(hide, rename_selector = "symbol")]
+	fn symbol_proxy(&self) -> Result<string> {
+		self.symbol()
 	}
 
 	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
@@ -224,35 +222,38 @@
 	fn token_uri(&self, token_id: uint256) -> Result<string> {
 		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 
-		if let Ok(url) = get_token_property(self, token_id_u32, &key::url()) {
-			if !url.is_empty() {
-				return Ok(url);
+		match get_token_property(self, token_id_u32, &key::url()).as_deref() {
+			Err(_) | Ok("") => (),
+			Ok(url) => {
+				return Ok(url.into());
 			}
-		} else if !is_erc721_metadata_compatible::<T>(self.id) {
-			return Err("tokenURI not set".into());
-		}
+		};
 
-		if let Some(base_uri) =
+		let base_uri =
 			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())
-		{
-			if !base_uri.is_empty() {
-				let base_uri = string::from_utf8(base_uri.into_inner()).map_err(|e| {
+				.map(BoundedVec::into_inner)
+				.map(string::from_utf8)
+				.transpose()
+				.map_err(|e| {
 					Error::Revert(alloc::format!(
 						"Can not convert value \"baseURI\" to string with error \"{}\"",
 						e
 					))
 				})?;
-				if let Ok(suffix) = get_token_property(self, token_id_u32, &key::suffix()) {
-					if !suffix.is_empty() {
-						return Ok(base_uri + suffix.as_str());
-					}
-				}
 
-				return Ok(base_uri + token_id.to_string().as_str());
+		let base_uri = match base_uri.as_deref() {
+			None | Some("") => {
+				return Ok("".into());
 			}
-		}
+			Some(base_uri) => base_uri.into(),
+		};
 
-		Ok("".into())
+		Ok(
+			match get_token_property(self, token_id_u32, &key::suffix()).as_deref() {
+				Err(_) | Ok("") => base_uri,
+				Ok(suffix) => base_uri + suffix,
+			},
+		)
 	}
 }
 
@@ -448,19 +449,33 @@
 }
 
 /// @title ERC721 minting logic.
-#[solidity_interface(name = ERC721Mintable, events(ERC721MintableEvents))]
+#[solidity_interface(name = ERC721UniqueMintable, events(ERC721UniqueMintableEvents))]
 impl<T: Config> RefungibleHandle<T> {
 	fn minting_finished(&self) -> Result<bool> {
 		Ok(false)
 	}
 
 	/// @notice Function to mint token.
+	/// @param to The new owner
+	/// @return uint256 The id of the newly minted token
+	#[weight(<SelfWeightOf<T>>::create_item())]
+	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {
+		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+			.checked_add(1)
+			.ok_or("item id overflow")?
+			.into();
+		self.mint_check_id(caller, to, token_id)?;
+		Ok(token_id)
+	}
+
+	/// @notice Function to mint token.
 	/// @dev `tokenId` should be obtained with `nextTokenId` method,
 	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
 	/// @param tokenId ID of the minted RFT
+	#[solidity(hide, rename_selector = "mint")]
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {
+	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token_id: u32 = token_id.try_into()?;
@@ -496,14 +511,34 @@
 	}
 
 	/// @notice Function to mint token with the given tokenUri.
+	/// @param to The new owner
+	/// @param tokenUri Token URI that would be stored in the NFT properties
+	/// @return uint256 The id of the newly minted token
+	#[solidity(rename_selector = "mintWithTokenURI")]
+	#[weight(<SelfWeightOf<T>>::create_item())]
+	fn mint_with_token_uri(
+		&mut self,
+		caller: caller,
+		to: address,
+		token_uri: string,
+	) -> Result<uint256> {
+		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+			.checked_add(1)
+			.ok_or("item id overflow")?
+			.into();
+		self.mint_with_token_uri_check_id(caller, to, token_id, token_uri)?;
+		Ok(token_id)
+	}
+
+	/// @notice Function to mint token with the given tokenUri.
 	/// @dev `tokenId` should be obtained with `nextTokenId` method,
 	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
 	/// @param tokenId ID of the minted RFT
 	/// @param tokenUri Token URI that would be stored in the RFT properties
-	#[solidity(rename_selector = "mintWithTokenURI")]
+	#[solidity(hide, rename_selector = "mintWithTokenURI")]
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint_with_token_uri(
+	fn mint_with_token_uri_check_id(
 		&mut self,
 		caller: caller,
 		to: address,
@@ -578,17 +613,6 @@
 	Err("Property tokenURI not found".into())
 }
 
-fn is_erc721_metadata_compatible<T: Config>(collection_id: CollectionId) -> bool {
-	if let Some(shema_name) =
-		pallet_common::Pallet::<T>::get_collection_property(collection_id, &key::schema_name())
-	{
-		let shema_name = shema_name.into_inner();
-		shema_name == property_value::ERC721_METADATA
-	} else {
-		false
-	}
-}
-
 fn get_token_permission<T: Config>(
 	collection_id: CollectionId,
 	key: &PropertyKey,
@@ -608,6 +632,18 @@
 /// @title Unique extensions for ERC721.
 #[solidity_interface(name = ERC721UniqueExtensions)]
 impl<T: Config> RefungibleHandle<T> {
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	fn name(&self) -> Result<string> {
+		Ok(decode_utf16(self.name.iter().copied())
+			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))
+			.collect::<string>())
+	}
+
+	/// @notice An abbreviated name for NFTs in this contract
+	fn symbol(&self) -> Result<string> {
+		Ok(string::from_utf8_lossy(&self.token_prefix).into())
+	}
+
 	/// @notice Transfer ownership of an RFT
 	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`
 	///  is the zero address. Throws if `tokenId` is not a valid RFT.
@@ -669,6 +705,7 @@
 	///  should be obtained with `nextTokenId` method
 	/// @param to The new owner
 	/// @param tokenIds IDs of the minted RFTs
+	// #[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]
 	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
@@ -711,7 +748,7 @@
 	///  numbers and first number should be obtained with `nextTokenId` method
 	/// @param to The new owner
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
-	#[solidity(rename_selector = "mintBulkWithTokenURI")]
+	#[solidity(/*hide,*/ rename_selector = "mintBulkWithTokenURI")]
 	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32))]
 	fn mint_bulk_with_token_uri(
 		&mut self,
@@ -780,11 +817,11 @@
 	name = UniqueRefungible,
 	is(
 		ERC721,
-		ERC721Metadata,
 		ERC721Enumerable,
 		ERC721UniqueExtensions,
-		ERC721Mintable,
+		ERC721UniqueMintable,
 		ERC721Burnable,
+		ERC721Metadata(if(this.flags.erc721metadata)),
 		Collection(via(common_mut returns CollectionHandle<T>)),
 		TokenProperties,
 	)
modifiedpallets/refungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -92,9 +92,11 @@
 
 use codec::{Encode, Decode, MaxEncodedLen};
 use core::ops::Deref;
+use derivative::Derivative;
 use evm_coder::ToLog;
 use frame_support::{
-	BoundedVec, ensure, fail, storage::with_transaction, transactional, pallet_prelude::ConstU32,
+	BoundedBTreeMap, BoundedVec, ensure, fail, storage::with_transaction, transactional,
+	pallet_prelude::ConstU32,
 };
 use pallet_evm::{account::CrossAccountId, Pallet as PalletEvm};
 use pallet_evm_coder_substrate::WithRecorder;
@@ -113,8 +115,6 @@
 	MAX_REFUNGIBLE_PIECES, Property, PropertyKey, PropertyKeyPermission, PropertyPermission,
 	PropertyScope, PropertyValue, TokenId, TrySetProperty,
 };
-use frame_support::BoundedBTreeMap;
-use derivative::Derivative;
 
 pub use pallet::*;
 #[cfg(feature = "runtime-benchmarks")]
@@ -371,8 +371,9 @@
 		owner: T::CrossAccountId,
 		payer: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
+		flags: CollectionFlags,
 	) -> Result<CollectionId, DispatchError> {
-		<PalletCommon<T>>::init_collection(owner, payer, data, CollectionFlags::default())
+		<PalletCommon<T>>::init_collection(owner, payer, data, flags)
 	}
 
 	/// Destroy RFT collection
modifiedpallets/refungible/src/stubs/UniqueRefungible.rawdiffbeforeafterboth

binary blob — no preview

modifiedpallets/refungible/src/stubs/UniqueRefungible.soldiffbeforeafterboth
--- a/pallets/refungible/src/stubs/UniqueRefungible.sol
+++ b/pallets/refungible/src/stubs/UniqueRefungible.sol
@@ -91,7 +91,7 @@
 }
 
 /// @title A contract that allows you to work with collections.
-/// @dev the ERC-165 identifier for this interface is 0x3e1e8083
+/// @dev the ERC-165 identifier for this interface is 0x62e22290
 contract Collection is Dummy, ERC165 {
 	/// Set collection property.
 	///
@@ -369,9 +369,9 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
-	/// @dev EVM selector for this function is: 0x13af4035,
-	///  or in textual repr: setOwner(address)
-	function setOwner(address newOwner) public {
+	/// @dev EVM selector for this function is: 0x4f53e226,
+	///  or in textual repr: changeCollectionOwner(address)
+	function changeCollectionOwner(address newOwner) public {
 		require(false, stub_error);
 		newOwner;
 		dummy = 0;
@@ -384,6 +384,47 @@
 	uint256 field_1;
 }
 
+/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
+contract ERC721Metadata is Dummy, ERC165 {
+	// /// @notice A descriptive name for a collection of NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x06fdde03,
+	// ///  or in textual repr: name()
+	// function name() public view returns (string memory) {
+	// 	require(false, stub_error);
+	// 	dummy;
+	// 	return "";
+	// }
+
+	// /// @notice An abbreviated name for NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x95d89b41,
+	// ///  or in textual repr: symbol()
+	// function symbol() public view returns (string memory) {
+	// 	require(false, stub_error);
+	// 	dummy;
+	// 	return "";
+	// }
+
+	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
+	///
+	/// @dev If the token has a `url` property and it is not empty, it is returned.
+	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
+	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
+	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
+	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
+	///
+	/// @return token's const_metadata
+	/// @dev EVM selector for this function is: 0xc87b56dd,
+	///  or in textual repr: tokenURI(uint256)
+	function tokenURI(uint256 tokenId) public view returns (string memory) {
+		require(false, stub_error);
+		tokenId;
+		dummy;
+		return "";
+	}
+}
+
 /// @title ERC721 Token that can be irreversibly burned (destroyed).
 /// @dev the ERC-165 identifier for this interface is 0x42966c68
 contract ERC721Burnable is Dummy, ERC165 {
@@ -401,13 +442,13 @@
 }
 
 /// @dev inlined interface
-contract ERC721MintableEvents {
+contract ERC721UniqueMintableEvents {
 	event MintingFinished();
 }
 
 /// @title ERC721 minting logic.
-/// @dev the ERC-165 identifier for this interface is 0x68ccfe89
-contract ERC721Mintable is Dummy, ERC165, ERC721MintableEvents {
+/// @dev the ERC-165 identifier for this interface is 0x476ff149
+contract ERC721UniqueMintable is Dummy, ERC165, ERC721UniqueMintableEvents {
 	/// @dev EVM selector for this function is: 0x05d2035b,
 	///  or in textual repr: mintingFinished()
 	function mintingFinished() public view returns (bool) {
@@ -417,41 +458,63 @@
 	}
 
 	/// @notice Function to mint token.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted RFT
-	/// @dev EVM selector for this function is: 0x40c10f19,
-	///  or in textual repr: mint(address,uint256)
-	function mint(address to, uint256 tokenId) public returns (bool) {
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x6a627842,
+	///  or in textual repr: mint(address)
+	function mint(address to) public returns (uint256) {
 		require(false, stub_error);
 		to;
-		tokenId;
 		dummy = 0;
-		return false;
+		return 0;
 	}
 
+	// /// @notice Function to mint token.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted RFT
+	// /// @dev EVM selector for this function is: 0x40c10f19,
+	// ///  or in textual repr: mint(address,uint256)
+	// function mint(address to, uint256 tokenId) public returns (bool) {
+	// 	require(false, stub_error);
+	// 	to;
+	// 	tokenId;
+	// 	dummy = 0;
+	// 	return false;
+	// }
+
 	/// @notice Function to mint token with the given tokenUri.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted RFT
-	/// @param tokenUri Token URI that would be stored in the RFT properties
-	/// @dev EVM selector for this function is: 0x50bb4e7f,
-	///  or in textual repr: mintWithTokenURI(address,uint256,string)
-	function mintWithTokenURI(
-		address to,
-		uint256 tokenId,
-		string memory tokenUri
-	) public returns (bool) {
+	/// @param tokenUri Token URI that would be stored in the NFT properties
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x45c17782,
+	///  or in textual repr: mintWithTokenURI(address,string)
+	function mintWithTokenURI(address to, string memory tokenUri) public returns (uint256) {
 		require(false, stub_error);
 		to;
-		tokenId;
 		tokenUri;
 		dummy = 0;
-		return false;
+		return 0;
 	}
 
+	// /// @notice Function to mint token with the given tokenUri.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted RFT
+	// /// @param tokenUri Token URI that would be stored in the RFT properties
+	// /// @dev EVM selector for this function is: 0x50bb4e7f,
+	// ///  or in textual repr: mintWithTokenURI(address,uint256,string)
+	// function mintWithTokenURI(address to, uint256 tokenId, string memory tokenUri) public returns (bool) {
+	// 	require(false, stub_error);
+	// 	to;
+	// 	tokenId;
+	// 	tokenUri;
+	// 	dummy = 0;
+	// 	return false;
+	// }
+
 	/// @dev Not implemented
 	/// @dev EVM selector for this function is: 0x7d64bcb4,
 	///  or in textual repr: finishMinting()
@@ -463,8 +526,26 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x7c3bef89
+/// @dev the ERC-165 identifier for this interface is 0xef1eaacb
 contract ERC721UniqueExtensions is Dummy, ERC165 {
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	/// @dev EVM selector for this function is: 0x06fdde03,
+	///  or in textual repr: name()
+	function name() public view returns (string memory) {
+		require(false, stub_error);
+		dummy;
+		return "";
+	}
+
+	/// @notice An abbreviated name for NFTs in this contract
+	/// @dev EVM selector for this function is: 0x95d89b41,
+	///  or in textual repr: symbol()
+	function symbol() public view returns (string memory) {
+		require(false, stub_error);
+		dummy;
+		return "";
+	}
+
 	/// @notice Transfer ownership of an RFT
 	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`
 	///  is the zero address. Throws if `tokenId` is not a valid RFT.
@@ -527,7 +608,7 @@
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
 	/// @dev EVM selector for this function is: 0x36543006,
 	///  or in textual repr: mintBulkWithTokenURI(address,(uint256,string)[])
-	function mintBulkWithTokenURI(address to, Tuple8[] memory tokens) public returns (bool) {
+	function mintBulkWithTokenURI(address to, Tuple6[] memory tokens) public returns (bool) {
 		require(false, stub_error);
 		to;
 		tokens;
@@ -549,7 +630,7 @@
 }
 
 /// @dev anonymous struct
-struct Tuple8 {
+struct Tuple6 {
 	uint256 field_0;
 	string field_1;
 }
@@ -591,46 +672,7 @@
 		require(false, stub_error);
 		dummy;
 		return 0;
-	}
-}
-
-/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
-contract ERC721Metadata is Dummy, ERC165 {
-	/// @notice A descriptive name for a collection of RFTs in this contract
-	/// @dev EVM selector for this function is: 0x06fdde03,
-	///  or in textual repr: name()
-	function name() public view returns (string memory) {
-		require(false, stub_error);
-		dummy;
-		return "";
-	}
-
-	/// @notice An abbreviated name for RFTs in this contract
-	/// @dev EVM selector for this function is: 0x95d89b41,
-	///  or in textual repr: symbol()
-	function symbol() public view returns (string memory) {
-		require(false, stub_error);
-		dummy;
-		return "";
 	}
-
-	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
-	///
-	/// @dev If the token has a `url` property and it is not empty, it is returned.
-	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
-	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
-	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
-	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
-	///
-	/// @return token's const_metadata
-	/// @dev EVM selector for this function is: 0xc87b56dd,
-	///  or in textual repr: tokenURI(uint256)
-	function tokenURI(uint256 tokenId) public view returns (string memory) {
-		require(false, stub_error);
-		tokenId;
-		dummy;
-		return "";
-	}
 }
 
 /// @dev inlined interface
@@ -776,11 +818,11 @@
 	Dummy,
 	ERC165,
 	ERC721,
-	ERC721Metadata,
 	ERC721Enumerable,
 	ERC721UniqueExtensions,
-	ERC721Mintable,
+	ERC721UniqueMintable,
 	ERC721Burnable,
+	ERC721Metadata,
 	Collection,
 	TokenProperties
 {}
modifiedpallets/refungible/src/stubs/UniqueRefungibleToken.rawdiffbeforeafterboth

binary blob — no preview

modifiedpallets/unique/src/eth/mod.rsdiffbeforeafterboth
--- a/pallets/unique/src/eth/mod.rs
+++ b/pallets/unique/src/eth/mod.rs
@@ -25,14 +25,16 @@
 	dispatch::CollectionDispatch,
 	erc::{
 		CollectionHelpersEvents,
-		static_property::{key, value as property_value},
+		static_property::{key},
 	},
+	Pallet as PalletCommon,
 };
 use pallet_evm_coder_substrate::{dispatch_to_evm, SubstrateRecorder, WithRecorder};
 use pallet_evm::{account::CrossAccountId, OnMethodCall, PrecompileHandle, PrecompileResult};
+use sp_std::vec;
 use up_data_structs::{
 	CollectionName, CollectionDescription, CollectionTokenPrefix, CreateCollectionData,
-	CollectionMode, PropertyValue,
+	CollectionMode, PropertyValue, CollectionFlags,
 };
 
 use crate::{Config, SelfWeightOf, weights::WeightInfo};
@@ -57,13 +59,11 @@
 	name: string,
 	description: string,
 	token_prefix: string,
-	base_uri: string,
 ) -> Result<(
 	T::CrossAccountId,
 	CollectionName,
 	CollectionDescription,
 	CollectionTokenPrefix,
-	PropertyValue,
 )> {
 	let caller = T::CrossAccountId::from_eth(caller);
 	let name = name
@@ -81,75 +81,7 @@
 	let token_prefix = token_prefix.into_bytes().try_into().map_err(|_| {
 		error_field_too_long(stringify!(token_prefix), CollectionTokenPrefix::bound())
 	})?;
-	let base_uri_value = base_uri
-		.into_bytes()
-		.try_into()
-		.map_err(|_| error_field_too_long(stringify!(token_prefix), PropertyValue::bound()))?;
-	Ok((caller, name, description, token_prefix, base_uri_value))
-}
-
-fn make_data<T: Config>(
-	name: CollectionName,
-	mode: CollectionMode,
-	description: CollectionDescription,
-	token_prefix: CollectionTokenPrefix,
-	base_uri_value: PropertyValue,
-	add_properties: bool,
-) -> Result<CreateCollectionData<T::AccountId>> {
-	let mut properties = up_data_structs::CollectionPropertiesVec::default();
-	let mut token_property_permissions =
-		up_data_structs::CollectionPropertiesPermissionsVec::default();
-
-	token_property_permissions
-		.try_push(up_data_structs::PropertyKeyPermission {
-			key: key::url(),
-			permission: up_data_structs::PropertyPermission {
-				mutable: false,
-				collection_admin: true,
-				token_owner: false,
-			},
-		})
-		.map_err(|e| Error::Revert(format!("{:?}", e)))?;
-
-	if add_properties {
-		token_property_permissions
-			.try_push(up_data_structs::PropertyKeyPermission {
-				key: key::suffix(),
-				permission: up_data_structs::PropertyPermission {
-					mutable: false,
-					collection_admin: true,
-					token_owner: false,
-				},
-			})
-			.map_err(|e| Error::Revert(format!("{:?}", e)))?;
-
-		properties
-			.try_push(up_data_structs::Property {
-				key: key::schema_name(),
-				value: property_value::erc721(),
-			})
-			.map_err(|e| Error::Revert(format!("{:?}", e)))?;
-
-		if !base_uri_value.is_empty() {
-			properties
-				.try_push(up_data_structs::Property {
-					key: key::base_uri(),
-					value: base_uri_value,
-				})
-				.map_err(|e| Error::Revert(format!("{:?}", e)))?;
-		}
-	}
-
-	let data = CreateCollectionData {
-		name,
-		mode,
-		description,
-		token_prefix,
-		token_property_permissions,
-		properties,
-		..Default::default()
-	};
-	Ok(data)
+	Ok((caller, name, description, token_prefix))
 }
 
 fn create_refungible_collection_internal<
@@ -160,26 +92,27 @@
 	name: string,
 	description: string,
 	token_prefix: string,
-	base_uri: string,
-	add_properties: bool,
 ) -> Result<address> {
-	let (caller, name, description, token_prefix, base_uri_value) =
-		convert_data::<T>(caller, name, description, token_prefix, base_uri)?;
-	let data = make_data::<T>(
+	let (caller, name, description, token_prefix) =
+		convert_data::<T>(caller, name, description, token_prefix)?;
+	let data = CreateCollectionData {
 		name,
-		CollectionMode::ReFungible,
+		mode: CollectionMode::ReFungible,
 		description,
 		token_prefix,
-		base_uri_value,
-		add_properties,
-	)?;
+		..Default::default()
+	};
 	check_sent_amount_equals_collection_creation_price::<T>(value)?;
 	let collection_helpers_address =
 		T::CrossAccountId::from_eth(<T as pallet_common::Config>::ContractAddress::get());
 
-	let collection_id =
-		T::CollectionDispatch::create(caller.clone(), collection_helpers_address, data)
-			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
+	let collection_id = T::CollectionDispatch::create(
+		caller.clone(),
+		collection_helpers_address,
+		data,
+		Default::default(),
+	)
+	.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
 	let address = pallet_common::eth::collection_id_to_address(collection_id);
 	Ok(address)
 }
@@ -212,7 +145,8 @@
 	/// @param tokenPrefix Token prefix to represent the collection tokens in UI and user applications
 	/// @return address Address of the newly created collection
 	#[weight(<SelfWeightOf<T>>::create_collection())]
-	fn create_nonfungible_collection(
+	#[solidity(rename_selector = "createNFTCollection")]
+	fn create_nft_collection(
 		&mut self,
 		caller: caller,
 		value: value,
@@ -220,60 +154,51 @@
 		description: string,
 		token_prefix: string,
 	) -> Result<address> {
-		let (caller, name, description, token_prefix, _base_uri_value) =
-			convert_data::<T>(caller, name, description, token_prefix, "".into())?;
-		let data = make_data::<T>(
+		let (caller, name, description, token_prefix) =
+			convert_data::<T>(caller, name, description, token_prefix)?;
+		let data = CreateCollectionData {
 			name,
-			CollectionMode::NFT,
+			mode: CollectionMode::NFT,
 			description,
 			token_prefix,
-			Default::default(),
-			false,
-		)?;
+			..Default::default()
+		};
 		check_sent_amount_equals_collection_creation_price::<T>(value)?;
 		let collection_helpers_address =
 			T::CrossAccountId::from_eth(<T as pallet_common::Config>::ContractAddress::get());
-		let collection_id = T::CollectionDispatch::create(caller, collection_helpers_address, data)
-			.map_err(dispatch_to_evm::<T>)?;
+		let collection_id = T::CollectionDispatch::create(
+			caller,
+			collection_helpers_address,
+			data,
+			Default::default(),
+		)
+		.map_err(dispatch_to_evm::<T>)?;
 
 		let address = pallet_common::eth::collection_id_to_address(collection_id);
 		Ok(address)
 	}
-
+	/// Create an NFT collection
+	/// @param name Name of the collection
+	/// @param description Informative description of the collection
+	/// @param tokenPrefix Token prefix to represent the collection tokens in UI and user applications
+	/// @return address Address of the newly created collection
 	#[weight(<SelfWeightOf<T>>::create_collection())]
-	#[solidity(rename_selector = "createERC721MetadataCompatibleCollection")]
-	fn create_nonfungible_collection_with_properties(
+	#[deprecated(note = "mathod was renamed to `create_nft_collection`, prefer it instead")]
+	#[solidity(hide)]
+	fn create_nonfungible_collection(
 		&mut self,
 		caller: caller,
 		value: value,
 		name: string,
 		description: string,
 		token_prefix: string,
-		base_uri: string,
 	) -> Result<address> {
-		let (caller, name, description, token_prefix, base_uri_value) =
-			convert_data::<T>(caller, name, description, token_prefix, base_uri)?;
-		let data = make_data::<T>(
-			name,
-			CollectionMode::NFT,
-			description,
-			token_prefix,
-			base_uri_value,
-			true,
-		)?;
-		check_sent_amount_equals_collection_creation_price::<T>(value)?;
-		let collection_helpers_address =
-			T::CrossAccountId::from_eth(<T as pallet_common::Config>::ContractAddress::get());
-		let collection_id = T::CollectionDispatch::create(caller, collection_helpers_address, data)
-			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
-
-		let address = pallet_common::eth::collection_id_to_address(collection_id);
-		Ok(address)
+		self.create_nft_collection(caller, value, name, description, token_prefix)
 	}
 
 	#[weight(<SelfWeightOf<T>>::create_collection())]
 	#[solidity(rename_selector = "createRFTCollection")]
-	fn create_refungible_collection(
+	fn create_rft_collection(
 		&mut self,
 		caller: caller,
 		value: value,
@@ -281,37 +206,94 @@
 		description: string,
 		token_prefix: string,
 	) -> Result<address> {
-		create_refungible_collection_internal::<T>(
-			caller,
-			value,
-			name,
-			description,
-			token_prefix,
-			Default::default(),
-			false,
-		)
+		create_refungible_collection_internal::<T>(caller, value, name, description, token_prefix)
 	}
 
-	#[weight(<SelfWeightOf<T>>::create_collection())]
-	#[solidity(rename_selector = "createERC721MetadataCompatibleRFTCollection")]
-	fn create_refungible_collection_with_properties(
+	#[solidity(rename_selector = "makeCollectionERC721MetadataCompatible")]
+	fn make_collection_metadata_compatible(
 		&mut self,
 		caller: caller,
-		value: value,
-		name: string,
-		description: string,
-		token_prefix: string,
+		collection: address,
 		base_uri: string,
-	) -> Result<address> {
-		create_refungible_collection_internal::<T>(
-			caller,
-			value,
-			name,
-			description,
-			token_prefix,
-			base_uri,
-			true,
-		)
+	) -> Result<()> {
+		let caller = T::CrossAccountId::from_eth(caller);
+		let collection =
+			pallet_common::eth::map_eth_to_id(&collection).ok_or("not a collection address")?;
+		let mut collection =
+			<crate::CollectionHandle<T>>::new(collection).ok_or("collection not found")?;
+
+		if !matches!(
+			collection.mode,
+			CollectionMode::NFT | CollectionMode::ReFungible
+		) {
+			return Err("target collection should be either NFT or Refungible".into());
+		}
+
+		self.recorder().consume_sstore()?;
+		collection
+			.check_is_owner_or_admin(&caller)
+			.map_err(dispatch_to_evm::<T>)?;
+
+		if collection.flags.erc721metadata {
+			return Err("target collection is already Erc721Metadata compatible".into());
+		}
+		collection.flags.erc721metadata = true;
+
+		let all_permissions = <pallet_common::CollectionPropertyPermissions<T>>::get(collection.id);
+		if all_permissions.get(&key::url()).is_none() {
+			self.recorder().consume_sstore()?;
+			<PalletCommon<T>>::set_property_permission(
+				&collection,
+				&caller,
+				up_data_structs::PropertyKeyPermission {
+					key: key::url(),
+					permission: up_data_structs::PropertyPermission {
+						mutable: true,
+						collection_admin: true,
+						token_owner: false,
+					},
+				},
+			)
+			.map_err(dispatch_to_evm::<T>)?;
+		}
+		if all_permissions.get(&key::suffix()).is_none() {
+			self.recorder().consume_sstore()?;
+			<PalletCommon<T>>::set_property_permission(
+				&collection,
+				&caller,
+				up_data_structs::PropertyKeyPermission {
+					key: key::suffix(),
+					permission: up_data_structs::PropertyPermission {
+						mutable: true,
+						collection_admin: true,
+						token_owner: false,
+					},
+				},
+			)
+			.map_err(dispatch_to_evm::<T>)?;
+		}
+
+		let all_properties = <pallet_common::CollectionProperties<T>>::get(collection.id);
+		if all_properties.get(&key::base_uri()).is_none() && !base_uri.is_empty() {
+			self.recorder().consume_sstore()?;
+			<PalletCommon<T>>::set_collection_properties(
+				&collection,
+				&caller,
+				vec![up_data_structs::Property {
+					key: key::base_uri(),
+					value: base_uri
+						.into_bytes()
+						.try_into()
+						.map_err(|_| "base uri is too large")?,
+				}],
+			)
+			.map_err(dispatch_to_evm::<T>)?;
+		}
+
+		self.recorder().consume_sstore()?;
+		collection.save().map_err(dispatch_to_evm::<T>)?;
+
+		Ok(())
 	}
 
 	/// Check if a collection exists
modifiedpallets/unique/src/eth/stubs/CollectionHelpers.rawdiffbeforeafterboth

binary blob — no preview

modifiedpallets/unique/src/eth/stubs/CollectionHelpers.soldiffbeforeafterboth
--- a/pallets/unique/src/eth/stubs/CollectionHelpers.sol
+++ b/pallets/unique/src/eth/stubs/CollectionHelpers.sol
@@ -23,16 +23,16 @@
 }
 
 /// @title Contract, which allows users to operate with collections
-/// @dev the ERC-165 identifier for this interface is 0x5ad4f440
+/// @dev the ERC-165 identifier for this interface is 0x58918631
 contract CollectionHelpers is Dummy, ERC165, CollectionHelpersEvents {
 	/// Create an NFT collection
 	/// @param name Name of the collection
 	/// @param description Informative description of the collection
 	/// @param tokenPrefix Token prefix to represent the collection tokens in UI and user applications
 	/// @return address Address of the newly created collection
-	/// @dev EVM selector for this function is: 0xe34a6844,
-	///  or in textual repr: createNonfungibleCollection(string,string,string)
-	function createNonfungibleCollection(
+	/// @dev EVM selector for this function is: 0x844af658,
+	///  or in textual repr: createNFTCollection(string,string,string)
+	function createNFTCollection(
 		string memory name,
 		string memory description,
 		string memory tokenPrefix
@@ -45,22 +45,21 @@
 		return 0x0000000000000000000000000000000000000000;
 	}
 
-	/// @dev EVM selector for this function is: 0xa634a5f9,
-	///  or in textual repr: createERC721MetadataCompatibleCollection(string,string,string,string)
-	function createERC721MetadataCompatibleCollection(
-		string memory name,
-		string memory description,
-		string memory tokenPrefix,
-		string memory baseUri
-	) public payable returns (address) {
-		require(false, stub_error);
-		name;
-		description;
-		tokenPrefix;
-		baseUri;
-		dummy = 0;
-		return 0x0000000000000000000000000000000000000000;
-	}
+	// /// Create an NFT collection
+	// /// @param name Name of the collection
+	// /// @param description Informative description of the collection
+	// /// @param tokenPrefix Token prefix to represent the collection tokens in UI and user applications
+	// /// @return address Address of the newly created collection
+	// /// @dev EVM selector for this function is: 0xe34a6844,
+	// ///  or in textual repr: createNonfungibleCollection(string,string,string)
+	// function createNonfungibleCollection(string memory name, string memory description, string memory tokenPrefix) public payable returns (address) {
+	// 	require(false, stub_error);
+	// 	name;
+	// 	description;
+	// 	tokenPrefix;
+	// 	dummy = 0;
+	// 	return 0x0000000000000000000000000000000000000000;
+	// }
 
 	/// @dev EVM selector for this function is: 0xab173450,
 	///  or in textual repr: createRFTCollection(string,string,string)
@@ -77,21 +76,13 @@
 		return 0x0000000000000000000000000000000000000000;
 	}
 
-	/// @dev EVM selector for this function is: 0xa5596388,
-	///  or in textual repr: createERC721MetadataCompatibleRFTCollection(string,string,string,string)
-	function createERC721MetadataCompatibleRFTCollection(
-		string memory name,
-		string memory description,
-		string memory tokenPrefix,
-		string memory baseUri
-	) public payable returns (address) {
+	/// @dev EVM selector for this function is: 0x85624258,
+	///  or in textual repr: makeCollectionERC721MetadataCompatible(address,string)
+	function makeCollectionERC721MetadataCompatible(address collection, string memory baseUri) public {
 		require(false, stub_error);
-		name;
-		description;
-		tokenPrefix;
+		collection;
 		baseUri;
 		dummy = 0;
-		return 0x0000000000000000000000000000000000000000;
 	}
 
 	/// Check if a collection exists
modifiedpallets/unique/src/lib.rsdiffbeforeafterboth
--- a/pallets/unique/src/lib.rs
+++ b/pallets/unique/src/lib.rs
@@ -345,7 +345,7 @@
 
 			// =========
 			let sender = T::CrossAccountId::from_sub(sender);
-			let _id = T::CollectionDispatch::create(sender.clone(), sender, data)?;
+			let _id = T::CollectionDispatch::create(sender.clone(), sender, data, Default::default())?;
 
 			Ok(())
 		}
modifiedprimitives/data-structs/src/lib.rsdiffbeforeafterboth
--- a/primitives/data-structs/src/lib.rs
+++ b/primitives/data-structs/src/lib.rs
@@ -365,11 +365,14 @@
 	/// Tokens in foreign collections can be transferred, but not burnt
 	#[bondrewd(bits = "0..1")]
 	pub foreign: bool,
+	/// Supports ERC721Metadata
+	#[bondrewd(bits = "1..2")]
+	pub erc721metadata: bool,
 	/// External collections can't be managed using `unique` api
 	#[bondrewd(bits = "7..8")]
 	pub external: bool,
 
-	#[bondrewd(reserve, bits = "1..7")]
+	#[bondrewd(reserve, bits = "2..7")]
 	pub reserved: u8,
 }
 bondrewd_codec!(CollectionFlags);
@@ -434,6 +437,15 @@
 	pub meta_update_permission: MetaUpdatePermission,
 }
 
+#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]
+#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+pub struct RpcCollectionFlags {
+	/// Is collection is foreign.
+	pub foreign: bool,
+	/// Collection supports ERC721Metadata.
+	pub erc721metadata: bool,
+}
+
 /// Collection parameters, used in RPC calls (see [`Collection`] for the storage version).
 #[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
@@ -471,8 +483,8 @@
 	/// Is collection read only.
 	pub read_only: bool,
 
-	/// Is collection is foreign.
-	pub foreign: bool,
+	/// Extra collection flags
+	pub flags: RpcCollectionFlags,
 }
 
 /// Data used for create collection.
modifiedruntime/common/dispatch.rsdiffbeforeafterboth
--- a/runtime/common/dispatch.rs
+++ b/runtime/common/dispatch.rs
@@ -31,7 +31,7 @@
 };
 use up_data_structs::{
 	CollectionMode, CreateCollectionData, MAX_DECIMAL_POINTS, mapping::TokenAddressMapping,
-	CollectionId,
+	CollectionId, CollectionFlags,
 };
 
 #[cfg(not(feature = "refungible"))]
@@ -57,10 +57,11 @@
 		sender: T::CrossAccountId,
 		payer: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
+		flags: CollectionFlags,
 	) -> Result<CollectionId, DispatchError> {
 		let id = match data.mode {
 			CollectionMode::NFT => {
-				<PalletNonfungible<T>>::init_collection(sender, payer, data, false)?
+				<PalletNonfungible<T>>::init_collection(sender, payer, data, flags)?
 			}
 			CollectionMode::Fungible(decimal_points) => {
 				// check params
@@ -68,11 +69,13 @@
 					decimal_points <= MAX_DECIMAL_POINTS,
 					pallet_unique::Error::<T>::CollectionDecimalPointLimitExceeded
 				);
-				<PalletFungible<T>>::init_collection(sender, payer, data)?
+				<PalletFungible<T>>::init_collection(sender, payer, data, flags)?
 			}
 
 			#[cfg(feature = "refungible")]
-			CollectionMode::ReFungible => <PalletRefungible<T>>::init_collection(sender, payer, data)?,
+			CollectionMode::ReFungible => {
+				<PalletRefungible<T>>::init_collection(sender, payer, data, flags)?
+			}
 
 			#[cfg(not(feature = "refungible"))]
 			CollectionMode::ReFungible => return unsupported!(T),
modifiedruntime/common/ethereum/sponsoring.rsdiffbeforeafterboth
--- a/runtime/common/ethereum/sponsoring.rs
+++ b/runtime/common/ethereum/sponsoring.rs
@@ -24,7 +24,7 @@
 use pallet_nonfungible::{
 	Config as NonfungibleConfig,
 	erc::{
-		UniqueNFTCall, ERC721UniqueExtensionsCall, ERC721MintableCall, ERC721Call,
+		UniqueNFTCall, ERC721UniqueExtensionsCall, ERC721UniqueMintableCall, ERC721Call,
 		TokenPropertiesCall,
 	},
 };
@@ -82,18 +82,17 @@
 						let token_id: TokenId = token_id.try_into().ok()?;
 						withdraw_transfer::<T>(&collection, &who, &token_id).map(|()| sponsor)
 					}
-					UniqueNFTCall::ERC721Mintable(
-						ERC721MintableCall::Mint { token_id, .. }
-						| ERC721MintableCall::MintWithTokenUri { token_id, .. },
-					) => {
-						let _token_id: TokenId = token_id.try_into().ok()?;
-						withdraw_create_item::<T>(
-							&collection,
-							&who,
-							&CreateItemData::NFT(CreateNftData::default()),
-						)
-						.map(|()| sponsor)
-					}
+					UniqueNFTCall::ERC721UniqueMintable(
+						ERC721UniqueMintableCall::Mint { .. }
+						| ERC721UniqueMintableCall::MintCheckId { .. }
+						| ERC721UniqueMintableCall::MintWithTokenUri { .. }
+						| ERC721UniqueMintableCall::MintWithTokenUriCheckId { .. },
+					) => withdraw_create_item::<T>(
+						&collection,
+						&who,
+						&CreateItemData::NFT(CreateNftData::default()),
+					)
+					.map(|()| sponsor),
 					UniqueNFTCall::ERC721(ERC721Call::TransferFrom { token_id, from, .. }) => {
 						let token_id: TokenId = token_id.try_into().ok()?;
 						let from = T::CrossAccountId::from_eth(from);
modifiedtests/src/eth/allowlist.test.tsdiffbeforeafterboth
--- a/tests/src/eth/allowlist.test.ts
+++ b/tests/src/eth/allowlist.test.ts
@@ -78,7 +78,7 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const user = helper.eth.createAccount();
 
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     expect(await collectionEvm.methods.allowed(user).call({from: owner})).to.be.false;
@@ -94,7 +94,7 @@
   //   const owner = await helper.eth.createAccountWithBalance(donor);
   //   const user = donor;
 
-  //   const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+  //   const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
   //   const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
   //   expect(await helper.collection.allowed(collectionId, {Substrate: user.address})).to.be.false;
@@ -110,7 +110,7 @@
     const notOwner = await helper.eth.createAccountWithBalance(donor);
     const user = helper.eth.createAccount();
 
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     expect(await collectionEvm.methods.allowed(user).call({from: owner})).to.be.false;
@@ -129,7 +129,7 @@
   //   const notOwner = await helper.eth.createAccountWithBalance(donor);
   //   const user = donor;
 
-  //   const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+  //   const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
   //   const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
   //   expect(await helper.collection.allowed(collectionId, {Substrate: user.address})).to.be.false;
modifiedtests/src/eth/api/CollectionHelpers.soldiffbeforeafterboth
--- a/tests/src/eth/api/CollectionHelpers.sol
+++ b/tests/src/eth/api/CollectionHelpers.sol
@@ -18,29 +18,29 @@
 }
 
 /// @title Contract, which allows users to operate with collections
-/// @dev the ERC-165 identifier for this interface is 0x5ad4f440
+/// @dev the ERC-165 identifier for this interface is 0x58918631
 interface CollectionHelpers is Dummy, ERC165, CollectionHelpersEvents {
 	/// Create an NFT collection
 	/// @param name Name of the collection
 	/// @param description Informative description of the collection
 	/// @param tokenPrefix Token prefix to represent the collection tokens in UI and user applications
 	/// @return address Address of the newly created collection
-	/// @dev EVM selector for this function is: 0xe34a6844,
-	///  or in textual repr: createNonfungibleCollection(string,string,string)
-	function createNonfungibleCollection(
+	/// @dev EVM selector for this function is: 0x844af658,
+	///  or in textual repr: createNFTCollection(string,string,string)
+	function createNFTCollection(
 		string memory name,
 		string memory description,
 		string memory tokenPrefix
 	) external payable returns (address);
 
-	/// @dev EVM selector for this function is: 0xa634a5f9,
-	///  or in textual repr: createERC721MetadataCompatibleCollection(string,string,string,string)
-	function createERC721MetadataCompatibleCollection(
-		string memory name,
-		string memory description,
-		string memory tokenPrefix,
-		string memory baseUri
-	) external payable returns (address);
+	// /// Create an NFT collection
+	// /// @param name Name of the collection
+	// /// @param description Informative description of the collection
+	// /// @param tokenPrefix Token prefix to represent the collection tokens in UI and user applications
+	// /// @return address Address of the newly created collection
+	// /// @dev EVM selector for this function is: 0xe34a6844,
+	// ///  or in textual repr: createNonfungibleCollection(string,string,string)
+	// function createNonfungibleCollection(string memory name, string memory description, string memory tokenPrefix) external payable returns (address);
 
 	/// @dev EVM selector for this function is: 0xab173450,
 	///  or in textual repr: createRFTCollection(string,string,string)
@@ -50,14 +50,9 @@
 		string memory tokenPrefix
 	) external payable returns (address);
 
-	/// @dev EVM selector for this function is: 0xa5596388,
-	///  or in textual repr: createERC721MetadataCompatibleRFTCollection(string,string,string,string)
-	function createERC721MetadataCompatibleRFTCollection(
-		string memory name,
-		string memory description,
-		string memory tokenPrefix,
-		string memory baseUri
-	) external payable returns (address);
+	/// @dev EVM selector for this function is: 0x85624258,
+	///  or in textual repr: makeCollectionERC721MetadataCompatible(address,string)
+	function makeCollectionERC721MetadataCompatible(address collection, string memory baseUri) external;
 
 	/// Check if a collection exists
 	/// @param collectionAddress Address of the collection in question
modifiedtests/src/eth/api/UniqueFungible.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueFungible.sol
+++ b/tests/src/eth/api/UniqueFungible.sol
@@ -13,7 +13,7 @@
 }
 
 /// @title A contract that allows you to work with collections.
-/// @dev the ERC-165 identifier for this interface is 0x3e1e8083
+/// @dev the ERC-165 identifier for this interface is 0x62e22290
 interface Collection is Dummy, ERC165 {
 	/// Set collection property.
 	///
@@ -194,9 +194,9 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
-	/// @dev EVM selector for this function is: 0x13af4035,
-	///  or in textual repr: setOwner(address)
-	function setOwner(address newOwner) external;
+	/// @dev EVM selector for this function is: 0x4f53e226,
+	///  or in textual repr: changeCollectionOwner(address)
+	function changeCollectionOwner(address newOwner) external;
 }
 
 /// @dev the ERC-165 identifier for this interface is 0x63034ac5
modifiedtests/src/eth/api/UniqueNFT.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueNFT.sol
+++ b/tests/src/eth/api/UniqueNFT.sol
@@ -62,7 +62,7 @@
 }
 
 /// @title A contract that allows you to work with collections.
-/// @dev the ERC-165 identifier for this interface is 0x3e1e8083
+/// @dev the ERC-165 identifier for this interface is 0x62e22290
 interface Collection is Dummy, ERC165 {
 	/// Set collection property.
 	///
@@ -243,9 +243,9 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
-	/// @dev EVM selector for this function is: 0x13af4035,
-	///  or in textual repr: setOwner(address)
-	function setOwner(address newOwner) external;
+	/// @dev EVM selector for this function is: 0x4f53e226,
+	///  or in textual repr: changeCollectionOwner(address)
+	function changeCollectionOwner(address newOwner) external;
 }
 
 /// @dev anonymous struct
@@ -254,6 +254,36 @@
 	uint256 field_1;
 }
 
+/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
+/// @dev See https://eips.ethereum.org/EIPS/eip-721
+/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
+interface ERC721Metadata is Dummy, ERC165 {
+	// /// @notice A descriptive name for a collection of NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x06fdde03,
+	// ///  or in textual repr: name()
+	// function name() external view returns (string memory);
+
+	// /// @notice An abbreviated name for NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x95d89b41,
+	// ///  or in textual repr: symbol()
+	// function symbol() external view returns (string memory);
+
+	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
+	///
+	/// @dev If the token has a `url` property and it is not empty, it is returned.
+	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
+	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
+	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
+	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
+	///
+	/// @return token's const_metadata
+	/// @dev EVM selector for this function is: 0xc87b56dd,
+	///  or in textual repr: tokenURI(uint256)
+	function tokenURI(uint256 tokenId) external view returns (string memory);
+}
+
 /// @title ERC721 Token that can be irreversibly burned (destroyed).
 /// @dev the ERC-165 identifier for this interface is 0x42966c68
 interface ERC721Burnable is Dummy, ERC165 {
@@ -267,39 +297,50 @@
 }
 
 /// @dev inlined interface
-interface ERC721MintableEvents {
+interface ERC721UniqueMintableEvents {
 	event MintingFinished();
 }
 
 /// @title ERC721 minting logic.
-/// @dev the ERC-165 identifier for this interface is 0x68ccfe89
-interface ERC721Mintable is Dummy, ERC165, ERC721MintableEvents {
+/// @dev the ERC-165 identifier for this interface is 0x476ff149
+interface ERC721UniqueMintable is Dummy, ERC165, ERC721UniqueMintableEvents {
 	/// @dev EVM selector for this function is: 0x05d2035b,
 	///  or in textual repr: mintingFinished()
 	function mintingFinished() external view returns (bool);
 
 	/// @notice Function to mint token.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted NFT
-	/// @dev EVM selector for this function is: 0x40c10f19,
-	///  or in textual repr: mint(address,uint256)
-	function mint(address to, uint256 tokenId) external returns (bool);
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x6a627842,
+	///  or in textual repr: mint(address)
+	function mint(address to) external returns (uint256);
+
+	// /// @notice Function to mint token.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted NFT
+	// /// @dev EVM selector for this function is: 0x40c10f19,
+	// ///  or in textual repr: mint(address,uint256)
+	// function mint(address to, uint256 tokenId) external returns (bool);
 
 	/// @notice Function to mint token with the given tokenUri.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted NFT
 	/// @param tokenUri Token URI that would be stored in the NFT properties
-	/// @dev EVM selector for this function is: 0x50bb4e7f,
-	///  or in textual repr: mintWithTokenURI(address,uint256,string)
-	function mintWithTokenURI(
-		address to,
-		uint256 tokenId,
-		string memory tokenUri
-	) external returns (bool);
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x45c17782,
+	///  or in textual repr: mintWithTokenURI(address,string)
+	function mintWithTokenURI(address to, string memory tokenUri) external returns (uint256);
+
+	// /// @notice Function to mint token with the given tokenUri.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted NFT
+	// /// @param tokenUri Token URI that would be stored in the NFT properties
+	// /// @dev EVM selector for this function is: 0x50bb4e7f,
+	// ///  or in textual repr: mintWithTokenURI(address,uint256,string)
+	// function mintWithTokenURI(address to, uint256 tokenId, string memory tokenUri) external returns (bool);
 
 	/// @dev Not implemented
 	/// @dev EVM selector for this function is: 0x7d64bcb4,
@@ -308,8 +349,18 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0xd74d154f
+/// @dev the ERC-165 identifier for this interface is 0x4468500d
 interface ERC721UniqueExtensions is Dummy, ERC165 {
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	/// @dev EVM selector for this function is: 0x06fdde03,
+	///  or in textual repr: name()
+	function name() external view returns (string memory);
+
+	/// @notice An abbreviated name for NFTs in this contract
+	/// @dev EVM selector for this function is: 0x95d89b41,
+	///  or in textual repr: symbol()
+	function symbol() external view returns (string memory);
+
 	/// @notice Transfer ownership of an NFT
 	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`
 	///  is the zero address. Throws if `tokenId` is not a valid NFT.
@@ -350,11 +401,11 @@
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
 	/// @dev EVM selector for this function is: 0x36543006,
 	///  or in textual repr: mintBulkWithTokenURI(address,(uint256,string)[])
-	function mintBulkWithTokenURI(address to, Tuple8[] memory tokens) external returns (bool);
+	function mintBulkWithTokenURI(address to, Tuple6[] memory tokens) external returns (bool);
 }
 
 /// @dev anonymous struct
-struct Tuple8 {
+struct Tuple6 {
 	uint256 field_0;
 	string field_1;
 }
@@ -384,34 +435,6 @@
 	function totalSupply() external view returns (uint256);
 }
 
-/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
-/// @dev See https://eips.ethereum.org/EIPS/eip-721
-/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
-interface ERC721Metadata is Dummy, ERC165 {
-	/// @notice A descriptive name for a collection of NFTs in this contract
-	/// @dev EVM selector for this function is: 0x06fdde03,
-	///  or in textual repr: name()
-	function name() external view returns (string memory);
-
-	/// @notice An abbreviated name for NFTs in this contract
-	/// @dev EVM selector for this function is: 0x95d89b41,
-	///  or in textual repr: symbol()
-	function symbol() external view returns (string memory);
-
-	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
-	///
-	/// @dev If the token has a `url` property and it is not empty, it is returned.
-	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
-	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
-	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
-	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
-	///
-	/// @return token's const_metadata
-	/// @dev EVM selector for this function is: 0xc87b56dd,
-	///  or in textual repr: tokenURI(uint256)
-	function tokenURI(uint256 tokenId) external view returns (string memory);
-}
-
 /// @dev inlined interface
 interface ERC721Events {
 	event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
@@ -507,11 +530,11 @@
 	Dummy,
 	ERC165,
 	ERC721,
-	ERC721Metadata,
 	ERC721Enumerable,
 	ERC721UniqueExtensions,
-	ERC721Mintable,
+	ERC721UniqueMintable,
 	ERC721Burnable,
+	ERC721Metadata,
 	Collection,
 	TokenProperties
 {}
deletedtests/src/eth/api/UniqueRFT.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueRFT.sol
+++ /dev/null
@@ -1,163 +0,0 @@
-// SPDX-License-Identifier: OTHER
-// This code is automatically generated
-
-pragma solidity >=0.8.0 <0.9.0;
-
-// Common stubs holder
-interface Dummy {
-
-}
-
-interface ERC165 is Dummy {
-	function supportsInterface(bytes4 interfaceID) external view returns (bool);
-}
-
-// Selector: 7d9262e6
-interface Collection is Dummy, ERC165 {
-	// Set collection property.
-	//
-	// @param key Property key.
-	// @param value Propery value.
-	//
-	// Selector: setCollectionProperty(string,bytes) 2f073f66
-	function setCollectionProperty(string memory key, bytes memory value)
-		external;
-
-	// Delete collection property.
-	//
-	// @param key Property key.
-	//
-	// Selector: deleteCollectionProperty(string) 7b7debce
-	function deleteCollectionProperty(string memory key) external;
-
-	// Get collection property.
-	//
-	// @dev Throws error if key not found.
-	//
-	// @param key Property key.
-	// @return bytes The property corresponding to the key.
-	//
-	// Selector: collectionProperty(string) cf24fd6d
-	function collectionProperty(string memory key)
-		external
-		view
-		returns (bytes memory);
-
-	// Set the sponsor of the collection.
-	//
-	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
-	//
-	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
-	//
-	// Selector: setCollectionSponsor(address) 7623402e
-	function setCollectionSponsor(address sponsor) external;
-
-	// Collection sponsorship confirmation.
-	//
-	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
-	//
-	// Selector: confirmCollectionSponsorship() 3c50e97a
-	function confirmCollectionSponsorship() external;
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"accountTokenOwnershipLimit",
-	// 	"sponsoredDataSize",
-	// 	"sponsoredDataRateLimit",
-	// 	"tokenLimit",
-	// 	"sponsorTransferTimeout",
-	// 	"sponsorApproveTimeout"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,uint32) 6a3841db
-	function setCollectionLimit(string memory limit, uint32 value) external;
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"ownerCanTransfer",
-	// 	"ownerCanDestroy",
-	// 	"transfersEnabled"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,bool) 993b7fba
-	function setCollectionLimit(string memory limit, bool value) external;
-
-	// Get contract address.
-	//
-	// Selector: contractAddress() f6b4dfb4
-	function contractAddress() external view returns (address);
-
-	// Add collection admin by substrate address.
-	// @param new_admin Substrate administrator address.
-	//
-	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
-	function addCollectionAdminSubstrate(uint256 newAdmin) external;
-
-	// Remove collection admin by substrate address.
-	// @param admin Substrate administrator address.
-	//
-	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
-	function removeCollectionAdminSubstrate(uint256 admin) external;
-
-	// Add collection admin.
-	// @param new_admin Address of the added administrator.
-	//
-	// Selector: addCollectionAdmin(address) 92e462c7
-	function addCollectionAdmin(address newAdmin) external;
-
-	// Remove collection admin.
-	//
-	// @param new_admin Address of the removed administrator.
-	//
-	// Selector: removeCollectionAdmin(address) fafd7b42
-	function removeCollectionAdmin(address admin) external;
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
-	//
-	// Selector: setCollectionNesting(bool) 112d4586
-	function setCollectionNesting(bool enable) external;
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
-	// @param collections Addresses of collections that will be available for nesting.
-	//
-	// Selector: setCollectionNesting(bool,address[]) 64872396
-	function setCollectionNesting(bool enable, address[] memory collections)
-		external;
-
-	// Set the collection access method.
-	// @param mode Access mode
-	// 	0 for Normal
-	// 	1 for AllowList
-	//
-	// Selector: setCollectionAccess(uint8) 41835d4c
-	function setCollectionAccess(uint8 mode) external;
-
-	// Add the user to the allowed list.
-	//
-	// @param user Address of a trusted user.
-	//
-	// Selector: addToCollectionAllowList(address) 67844fe6
-	function addToCollectionAllowList(address user) external;
-
-	// Remove the user from the allowed list.
-	//
-	// @param user Address of a removed user.
-	//
-	// Selector: removeFromCollectionAllowList(address) 85c51acb
-	function removeFromCollectionAllowList(address user) external;
-
-	// Switch permission for minting.
-	//
-	// @param mode Enable if "true".
-	//
-	// Selector: setCollectionMintMode(bool) 00018e84
-	function setCollectionMintMode(bool mode) external;
-}
-
-interface UniqueRFT is Dummy, ERC165, Collection {}
modifiedtests/src/eth/api/UniqueRefungible.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueRefungible.sol
+++ b/tests/src/eth/api/UniqueRefungible.sol
@@ -62,7 +62,7 @@
 }
 
 /// @title A contract that allows you to work with collections.
-/// @dev the ERC-165 identifier for this interface is 0x3e1e8083
+/// @dev the ERC-165 identifier for this interface is 0x62e22290
 interface Collection is Dummy, ERC165 {
 	/// Set collection property.
 	///
@@ -243,9 +243,9 @@
 	///
 	/// @dev Owner can be changed only by current owner
 	/// @param newOwner new owner account
-	/// @dev EVM selector for this function is: 0x13af4035,
-	///  or in textual repr: setOwner(address)
-	function setOwner(address newOwner) external;
+	/// @dev EVM selector for this function is: 0x4f53e226,
+	///  or in textual repr: changeCollectionOwner(address)
+	function changeCollectionOwner(address newOwner) external;
 }
 
 /// @dev anonymous struct
@@ -254,6 +254,34 @@
 	uint256 field_1;
 }
 
+/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
+interface ERC721Metadata is Dummy, ERC165 {
+	// /// @notice A descriptive name for a collection of NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x06fdde03,
+	// ///  or in textual repr: name()
+	// function name() external view returns (string memory);
+
+	// /// @notice An abbreviated name for NFTs in this contract
+	// /// @dev real implementation of this function lies in `ERC721UniqueExtensions`
+	// /// @dev EVM selector for this function is: 0x95d89b41,
+	// ///  or in textual repr: symbol()
+	// function symbol() external view returns (string memory);
+
+	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
+	///
+	/// @dev If the token has a `url` property and it is not empty, it is returned.
+	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
+	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
+	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
+	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
+	///
+	/// @return token's const_metadata
+	/// @dev EVM selector for this function is: 0xc87b56dd,
+	///  or in textual repr: tokenURI(uint256)
+	function tokenURI(uint256 tokenId) external view returns (string memory);
+}
+
 /// @title ERC721 Token that can be irreversibly burned (destroyed).
 /// @dev the ERC-165 identifier for this interface is 0x42966c68
 interface ERC721Burnable is Dummy, ERC165 {
@@ -267,40 +295,51 @@
 }
 
 /// @dev inlined interface
-interface ERC721MintableEvents {
+interface ERC721UniqueMintableEvents {
 	event MintingFinished();
 }
 
 /// @title ERC721 minting logic.
-/// @dev the ERC-165 identifier for this interface is 0x68ccfe89
-interface ERC721Mintable is Dummy, ERC165, ERC721MintableEvents {
+/// @dev the ERC-165 identifier for this interface is 0x476ff149
+interface ERC721UniqueMintable is Dummy, ERC165, ERC721UniqueMintableEvents {
 	/// @dev EVM selector for this function is: 0x05d2035b,
 	///  or in textual repr: mintingFinished()
 	function mintingFinished() external view returns (bool);
 
 	/// @notice Function to mint token.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted RFT
-	/// @dev EVM selector for this function is: 0x40c10f19,
-	///  or in textual repr: mint(address,uint256)
-	function mint(address to, uint256 tokenId) external returns (bool);
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x6a627842,
+	///  or in textual repr: mint(address)
+	function mint(address to) external returns (uint256);
+
+	// /// @notice Function to mint token.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted RFT
+	// /// @dev EVM selector for this function is: 0x40c10f19,
+	// ///  or in textual repr: mint(address,uint256)
+	// function mint(address to, uint256 tokenId) external returns (bool);
 
 	/// @notice Function to mint token with the given tokenUri.
-	/// @dev `tokenId` should be obtained with `nextTokenId` method,
-	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
-	/// @param tokenId ID of the minted RFT
-	/// @param tokenUri Token URI that would be stored in the RFT properties
-	/// @dev EVM selector for this function is: 0x50bb4e7f,
-	///  or in textual repr: mintWithTokenURI(address,uint256,string)
-	function mintWithTokenURI(
-		address to,
-		uint256 tokenId,
-		string memory tokenUri
-	) external returns (bool);
+	/// @param tokenUri Token URI that would be stored in the NFT properties
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0x45c17782,
+	///  or in textual repr: mintWithTokenURI(address,string)
+	function mintWithTokenURI(address to, string memory tokenUri) external returns (uint256);
 
+	// /// @notice Function to mint token with the given tokenUri.
+	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
+	// ///  unlike standard, you can't specify it manually
+	// /// @param to The new owner
+	// /// @param tokenId ID of the minted RFT
+	// /// @param tokenUri Token URI that would be stored in the RFT properties
+	// /// @dev EVM selector for this function is: 0x50bb4e7f,
+	// ///  or in textual repr: mintWithTokenURI(address,uint256,string)
+	// function mintWithTokenURI(address to, uint256 tokenId, string memory tokenUri) external returns (bool);
+
 	/// @dev Not implemented
 	/// @dev EVM selector for this function is: 0x7d64bcb4,
 	///  or in textual repr: finishMinting()
@@ -308,8 +347,18 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x7c3bef89
+/// @dev the ERC-165 identifier for this interface is 0xef1eaacb
 interface ERC721UniqueExtensions is Dummy, ERC165 {
+	/// @notice A descriptive name for a collection of NFTs in this contract
+	/// @dev EVM selector for this function is: 0x06fdde03,
+	///  or in textual repr: name()
+	function name() external view returns (string memory);
+
+	/// @notice An abbreviated name for NFTs in this contract
+	/// @dev EVM selector for this function is: 0x95d89b41,
+	///  or in textual repr: symbol()
+	function symbol() external view returns (string memory);
+
 	/// @notice Transfer ownership of an RFT
 	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`
 	///  is the zero address. Throws if `tokenId` is not a valid RFT.
@@ -352,7 +401,7 @@
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
 	/// @dev EVM selector for this function is: 0x36543006,
 	///  or in textual repr: mintBulkWithTokenURI(address,(uint256,string)[])
-	function mintBulkWithTokenURI(address to, Tuple8[] memory tokens) external returns (bool);
+	function mintBulkWithTokenURI(address to, Tuple6[] memory tokens) external returns (bool);
 
 	/// Returns EVM address for refungible token
 	///
@@ -363,7 +412,7 @@
 }
 
 /// @dev anonymous struct
-struct Tuple8 {
+struct Tuple6 {
 	uint256 field_0;
 	string field_1;
 }
@@ -393,32 +442,6 @@
 	function totalSupply() external view returns (uint256);
 }
 
-/// @dev the ERC-165 identifier for this interface is 0x5b5e139f
-interface ERC721Metadata is Dummy, ERC165 {
-	/// @notice A descriptive name for a collection of RFTs in this contract
-	/// @dev EVM selector for this function is: 0x06fdde03,
-	///  or in textual repr: name()
-	function name() external view returns (string memory);
-
-	/// @notice An abbreviated name for RFTs in this contract
-	/// @dev EVM selector for this function is: 0x95d89b41,
-	///  or in textual repr: symbol()
-	function symbol() external view returns (string memory);
-
-	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
-	///
-	/// @dev If the token has a `url` property and it is not empty, it is returned.
-	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
-	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
-	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
-	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
-	///
-	/// @return token's const_metadata
-	/// @dev EVM selector for this function is: 0xc87b56dd,
-	///  or in textual repr: tokenURI(uint256)
-	function tokenURI(uint256 tokenId) external view returns (string memory);
-}
-
 /// @dev inlined interface
 interface ERC721Events {
 	event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
@@ -512,11 +535,11 @@
 	Dummy,
 	ERC165,
 	ERC721,
-	ERC721Metadata,
 	ERC721Enumerable,
 	ERC721UniqueExtensions,
-	ERC721Mintable,
+	ERC721UniqueMintable,
 	ERC721Burnable,
+	ERC721Metadata,
 	Collection,
 	TokenProperties
 {}
modifiedtests/src/eth/base.test.tsdiffbeforeafterboth
--- a/tests/src/eth/base.test.ts
+++ b/tests/src/eth/base.test.ts
@@ -23,7 +23,7 @@
 describe('Contract calls', () => {
   let donor: IKeyringPair;
 
-  before(async function() {
+  before(async function () {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
       donor = await privateKey({filename: __filename});
     });
@@ -40,7 +40,12 @@
   itEth('Balance transfer fee is less than 0.2 UNQ', async ({helper}) => {
     const userA = await helper.eth.createAccountWithBalance(donor);
     const userB = helper.eth.createAccount();
-    const cost = await helper.eth.calculateFee({Ethereum: userA}, () => helper.getWeb3().eth.sendTransaction({from: userA, to: userB, value: '1000000', gas: helper.eth.DEFAULT_GAS}));
+    const cost = await helper.eth.calculateFee({Ethereum: userA}, () => helper.getWeb3().eth.sendTransaction({
+      from: userA,
+      to: userB,
+      value: '1000000',
+      gas: helper.eth.DEFAULT_GAS
+    }));
     const balanceB = await helper.balance.getEthereum(userB);
     expect(cost - balanceB < BigInt(0.2 * Number(helper.balance.getOneTokenNominal()))).to.be.true;
   });
@@ -69,51 +74,59 @@
 describe('ERC165 tests', async () => {
   // https://eips.ethereum.org/EIPS/eip-165
 
-  let collection: number;
+  let erc721MetadataCompatibleNftCollectionId: number;
+  let simpleNftCollectionId: number;
   let minter: string;
 
-  function contract(helper: EthUniqueHelper): Contract {
-    return helper.ethNativeContract.collection(helper.ethAddress.fromCollectionId(collection), 'nft', minter);
+  const BASE_URI = 'base/';
+
+  async function checkInterface(helper: EthUniqueHelper, interfaceId: string, simpleResult: boolean, compatibleResult: boolean) {
+    const simple = helper.ethNativeContract.collection(helper.ethAddress.fromCollectionId(simpleNftCollectionId), 'nft', minter);
+    const compatible = helper.ethNativeContract.collection(helper.ethAddress.fromCollectionId(erc721MetadataCompatibleNftCollectionId), 'nft', minter);
+
+    expect(await simple.methods.supportsInterface(interfaceId).call()).to.equal(simpleResult, `empty (not ERC721Metadata compatible) NFT collection returns not ${simpleResult}`);
+    expect(await compatible.methods.supportsInterface(interfaceId).call()).to.equal(compatibleResult, `ERC721Metadata compatible NFT collection returns not ${compatibleResult}`);
   }
 
   before(async () => {
     await usingEthPlaygrounds(async (helper, privateKey) => {
       const donor = await privateKey({filename: __filename});
       const [alice] = await helper.arrange.createAccounts([10n], donor);
-      ({collectionId: collection} = await helper.nft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'}));
+      ({collectionId: simpleNftCollectionId} = await helper.nft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'}));
       minter = helper.eth.createAccount();
+      ({collectionId: erc721MetadataCompatibleNftCollectionId} = await helper.eth.createERC721MetadataCompatibleNFTCollection(minter, 'n', 'd', 'p', BASE_URI));
     });
   });
 
-  itEth('interfaceID == 0xffffffff always false', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0xffffffff').call()).to.be.false;
+  itEth('nonexistent interfaceID - 0xffffffff - always false', async ({helper}) => {
+    await checkInterface(helper, '0xffffffff', false, false);
   });
 
-  itEth('ERC721 support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0x780e9d63').call()).to.be.true;
+  itEth('ERC721 - 0x780e9d63 - support', async ({helper}) => {
+    await checkInterface(helper, '0x780e9d63', true, true);
   });
 
-  itEth('ERC721Metadata support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0x5b5e139f').call()).to.be.true;
+  itEth('ERC721Metadata - 0x5b5e139f - support', async ({helper}) => {
+    await checkInterface(helper, '0x5b5e139f', false, true);
   });
 
-  itEth('ERC721Mintable support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0x68ccfe89').call()).to.be.true;
+  itEth('ERC721UniqueMintable - 0x476ff149 - support', async ({helper}) => {
+    await checkInterface(helper, '0x476ff149', true, true);
   });
 
-  itEth('ERC721Enumerable support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0x780e9d63').call()).to.be.true;
+  itEth('ERC721Enumerable - 0x780e9d63 - support', async ({helper}) => {
+    await checkInterface(helper, '0x780e9d63', true, true);
   });
 
-  itEth('ERC721UniqueExtensions support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0xd74d154f').call()).to.be.true;
+  itEth('ERC721UniqueExtensions - 0x4468500d - support', async ({helper}) => {
+    await checkInterface(helper, '0x4468500d', true, true);
   });
 
-  itEth('ERC721Burnable support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0x42966c68').call()).to.be.true;
+  itEth('ERC721Burnable - 0x42966c68 - support', async ({helper}) => {
+    await checkInterface(helper, '0x42966c68', true, true);
   });
 
-  itEth('ERC165 support', async ({helper}) => {
-    expect(await contract(helper).methods.supportsInterface('0x01ffc9a7').call()).to.be.true;
+  itEth('ERC165 - 0x01ffc9a7 - support', async ({helper}) => {
+    await checkInterface(helper, '0x01ffc9a7', true, true);
   });
 });
modifiedtests/src/eth/collectionAdmin.test.tsdiffbeforeafterboth
--- a/tests/src/eth/collectionAdmin.test.ts
+++ b/tests/src/eth/collectionAdmin.test.ts
@@ -38,7 +38,7 @@
 
   itEth('Add admin by owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     const newAdmin = helper.eth.createAccount();
@@ -51,7 +51,7 @@
 
   itEth.skip('Add substrate admin by owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     const [newAdmin] = await helper.arrange.createAccounts([10n], donor);
@@ -64,7 +64,7 @@
 
   itEth('Verify owner or admin', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const newAdmin = helper.eth.createAccount();
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -75,7 +75,7 @@
 
   itEth('(!negative tests!) Add admin by ADMIN is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const admin = await helper.eth.createAccountWithBalance(donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -93,7 +93,7 @@
 
   itEth('(!negative tests!) Add admin by USER is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const notAdmin = await helper.eth.createAccountWithBalance(donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -108,7 +108,7 @@
 
   itEth.skip('(!negative tests!) Add substrate admin by ADMIN is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const admin = await helper.eth.createAccountWithBalance(donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -126,7 +126,7 @@
 
   itEth.skip('(!negative tests!) Add substrate admin by USER is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const notAdmin0 = await helper.eth.createAccountWithBalance(donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -150,7 +150,7 @@
 
   itEth('Remove admin by owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const newAdmin = helper.eth.createAccount();
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -170,7 +170,7 @@
 
   itEth.skip('Remove substrate admin by owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const [newAdmin] = await helper.arrange.createAccounts([10n], donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -188,7 +188,7 @@
 
   itEth('(!negative tests!) Remove admin by ADMIN is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
@@ -210,7 +210,7 @@
 
   itEth('(!negative tests!) Remove admin by USER is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
@@ -230,7 +230,7 @@
 
   itEth.skip('(!negative tests!) Remove substrate admin by ADMIN is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const [adminSub] = await helper.arrange.createAccounts([10n], donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -250,7 +250,7 @@
 
   itEth.skip('(!negative tests!) Remove substrate admin by USER is not allowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
     const [adminSub] = await helper.arrange.createAccounts([10n], donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
@@ -279,10 +279,10 @@
   itEth('Change owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const newOwner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
-    await collectionEvm.methods.setOwner(newOwner).send();
+    await collectionEvm.methods.changeCollectionOwner(newOwner).send();
 
     expect(await collectionEvm.methods.isOwnerOrAdmin(owner).call()).to.be.false;
     expect(await collectionEvm.methods.isOwnerOrAdmin(newOwner).call()).to.be.true;
@@ -291,9 +291,9 @@
   itEth('change owner call fee', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const newOwner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
-    const cost = await recordEthFee(helper, owner, () => collectionEvm.methods.setOwner(newOwner).send());
+    const cost = await recordEthFee(helper, owner, () => collectionEvm.methods.changeCollectionOwner(newOwner).send());
     expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));
     expect(cost > 0);
   });
@@ -301,10 +301,10 @@
   itEth('(!negative tests!) call setOwner by non owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const newOwner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
-    await expect(collectionEvm.methods.setOwner(newOwner).send({from: newOwner})).to.be.rejected;
+    await expect(collectionEvm.methods.changeCollectionOwner(newOwner).send({from: newOwner})).to.be.rejected;
     expect(await collectionEvm.methods.isOwnerOrAdmin(newOwner).call()).to.be.false;
   });
 });
@@ -321,7 +321,7 @@
   itEth.skip('Change owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const [newOwner] = await helper.arrange.createAccounts([10n], donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     expect(await collectionEvm.methods.isOwnerOrAdmin(owner).call()).to.be.true;
@@ -336,7 +336,7 @@
   itEth.skip('change owner call fee', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const [newOwner] = await helper.arrange.createAccounts([10n], donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     const cost = await recordEthFee(helper, owner, () => collectionEvm.methods.setOwnerSubstrate(newOwner.addressRaw).send());
@@ -348,7 +348,7 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const otherReceiver = await helper.eth.createAccountWithBalance(donor);
     const [newOwner] = await helper.arrange.createAccounts([10n], donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
     await expect(collectionEvm.methods.setOwnerSubstrate(newOwner.addressRaw).send({from: otherReceiver})).to.be.rejected;
modifiedtests/src/eth/collectionHelpersAbi.jsondiffbeforeafterboth
--- a/tests/src/eth/collectionHelpersAbi.json
+++ b/tests/src/eth/collectionHelpersAbi.json
@@ -29,33 +29,9 @@
     "inputs": [
       { "internalType": "string", "name": "name", "type": "string" },
       { "internalType": "string", "name": "description", "type": "string" },
-      { "internalType": "string", "name": "tokenPrefix", "type": "string" },
-      { "internalType": "string", "name": "baseUri", "type": "string" }
-    ],
-    "name": "createERC721MetadataCompatibleCollection",
-    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
-    "stateMutability": "payable",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      { "internalType": "string", "name": "name", "type": "string" },
-      { "internalType": "string", "name": "description", "type": "string" },
-      { "internalType": "string", "name": "tokenPrefix", "type": "string" },
-      { "internalType": "string", "name": "baseUri", "type": "string" }
-    ],
-    "name": "createERC721MetadataCompatibleRFTCollection",
-    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
-    "stateMutability": "payable",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      { "internalType": "string", "name": "name", "type": "string" },
-      { "internalType": "string", "name": "description", "type": "string" },
       { "internalType": "string", "name": "tokenPrefix", "type": "string" }
     ],
-    "name": "createNonfungibleCollection",
+    "name": "createNFTCollection",
     "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
     "stateMutability": "payable",
     "type": "function"
@@ -86,6 +62,16 @@
   },
   {
     "inputs": [
+      { "internalType": "address", "name": "collection", "type": "address" },
+      { "internalType": "string", "name": "baseUri", "type": "string" }
+    ],
+    "name": "makeCollectionERC721MetadataCompatible",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
       { "internalType": "bytes4", "name": "interfaceID", "type": "bytes4" }
     ],
     "name": "supportsInterface",
modifiedtests/src/eth/collectionProperties.test.tsdiffbeforeafterboth
--- a/tests/src/eth/collectionProperties.test.ts
+++ b/tests/src/eth/collectionProperties.test.ts
@@ -14,8 +14,11 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import {itEth, usingEthPlaygrounds, expect} from './util';
+import {itEth, usingEthPlaygrounds, expect, EthUniqueHelper} from './util';
+import {Pallets} from '../util';
+import {IProperty, ITokenPropertyPermission} from '../util/playgrounds/types';
 import {IKeyringPair} from '@polkadot/types/types';
+import {Contract} from 'web3-eth-contract';
 
 describe('EVM collection properties', () => {
   let donor: IKeyringPair;
@@ -30,7 +33,7 @@
 
   itEth('Can be set', async({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const collection = await helper.nft.mintCollection(alice, {name: 'name', description: 'test', tokenPrefix: 'test'});
+    const collection = await helper.nft.mintCollection(alice, {name: 'name', description: 'test', tokenPrefix: 'test', properties: []});
     await collection.addAdmin(alice, {Ethereum: caller});
 
     const address = helper.ethAddress.fromCollectionId(collection.collectionId);
@@ -70,3 +73,92 @@
     expect(value).to.equal(helper.getWeb3().utils.toHex('testValue'));
   });
 });
+
+describe('Supports ERC721Metadata', () => {
+  let donor: IKeyringPair;
+
+  before(async function() {
+    await usingEthPlaygrounds(async (_helper, privateKey) => {
+      donor = await privateKey({filename: __filename});
+    });
+  });
+
+  const checkERC721Metadata = async (helper: EthUniqueHelper, mode: 'nft' | 'rft') => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const bruh = await helper.eth.createAccountWithBalance(donor);
+
+    const BASE_URI = 'base/'
+    const SUFFIX = 'suffix1'
+    const URI = 'uri1'
+
+    const collectionHelpers = helper.ethNativeContract.collectionHelpers(caller);
+    const creatorMethod = mode === 'rft' ? 'createRFTCollection' : 'createNFTCollection'
+
+    const {collectionId, collectionAddress} = await helper.eth[creatorMethod](caller, 'n', 'd', 'p')
+
+    const contract = helper.ethNativeContract.collectionById(collectionId, mode, caller);
+    await contract.methods.addCollectionAdmin(bruh).send(); // to check that admin will work too
+
+    const collection1 = await helper.nft.getCollectionObject(collectionId);
+    const data1 = await collection1.getData()
+    expect(data1?.raw.flags.erc721metadata).to.be.false;
+    expect(await contract.methods.supportsInterface('0x5b5e139f').call()).to.be.false;
+
+    await collectionHelpers.methods.makeCollectionERC721MetadataCompatible(collectionAddress, BASE_URI)
+      .send({from: bruh});
+
+    expect(await contract.methods.supportsInterface('0x5b5e139f').call()).to.be.true;
+
+    const collection2 = await helper.nft.getCollectionObject(collectionId);
+    const data2 = await collection2.getData()
+    expect(data2?.raw.flags.erc721metadata).to.be.true;
+
+    const TPPs = data2?.raw.tokenPropertyPermissions
+    expect(TPPs?.length).to.equal(2);
+
+    expect(TPPs.find((tpp: ITokenPropertyPermission) => {
+      return tpp.key === "URI" && tpp.permission.mutable && tpp.permission.collectionAdmin && !tpp.permission.tokenOwner
+    })).to.be.not.null
+
+    expect(TPPs.find((tpp: ITokenPropertyPermission) => {
+      return tpp.key === "URISuffix" && tpp.permission.mutable && tpp.permission.collectionAdmin && !tpp.permission.tokenOwner
+    })).to.be.not.null
+
+    expect(data2?.raw.properties?.find((property: IProperty) => {
+      return property.key === "baseURI" && property.value === BASE_URI
+    })).to.be.not.null
+
+    const token1Result = await contract.methods.mint(bruh).send();
+    const tokenId1 = token1Result.events.Transfer.returnValues.tokenId;
+
+    expect(await contract.methods.tokenURI(tokenId1).call()).to.equal(BASE_URI);
+
+    await contract.methods.setProperty(tokenId1, "URISuffix", Buffer.from(SUFFIX)).send();
+    expect(await contract.methods.tokenURI(tokenId1).call()).to.equal(BASE_URI + SUFFIX);
+
+    await contract.methods.setProperty(tokenId1, "URI", Buffer.from(URI)).send();
+    expect(await contract.methods.tokenURI(tokenId1).call()).to.equal(URI);
+
+    await contract.methods.deleteProperty(tokenId1, "URI").send();
+    expect(await contract.methods.tokenURI(tokenId1).call()).to.equal(BASE_URI + SUFFIX);
+
+    const token2Result = await contract.methods.mintWithTokenURI(bruh, URI).send();
+    const tokenId2 = token2Result.events.Transfer.returnValues.tokenId;
+
+    expect(await contract.methods.tokenURI(tokenId2).call()).to.equal(URI);
+
+    await contract.methods.deleteProperty(tokenId2, "URI").send();
+    expect(await contract.methods.tokenURI(tokenId2).call()).to.equal(BASE_URI);
+
+    await contract.methods.setProperty(tokenId2, "URISuffix", Buffer.from(SUFFIX)).send();
+    expect(await contract.methods.tokenURI(tokenId2).call()).to.equal(BASE_URI + SUFFIX);
+  }
+
+  itEth('ERC721Metadata property can be set for NFT collection', async({helper}) => {
+    await checkERC721Metadata(helper, 'nft');
+  });
+
+  itEth.ifWithPallets('ERC721Metadata property can be set for RFT collection', [Pallets.ReFungible], async({helper}) => {
+    await checkERC721Metadata(helper, 'rft');
+  });
+});
modifiedtests/src/eth/collectionSponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/eth/collectionSponsoring.test.ts
+++ b/tests/src/eth/collectionSponsoring.test.ts
@@ -44,9 +44,8 @@
 
     await collection.addToAllowList(alice, {Ethereum: minter});
 
-    const nextTokenId = await contract.methods.nextTokenId().call();
-    expect(nextTokenId).to.equal('1');
-    const result = await contract.methods.mint(minter, nextTokenId).send();
+    const result = await contract.methods.mint(minter).send();
+
     const events = helper.eth.normalizeEvents(result.events);
     expect(events).to.be.deep.equal([
       {
@@ -55,7 +54,7 @@
         args: {
           from: '0x0000000000000000000000000000000000000000',
           to: minter,
-          tokenId: nextTokenId,
+          tokenId: '1',
         },
       },
     ]);
@@ -65,7 +64,7 @@
   // itWeb3('Set substrate sponsor', async ({api, web3, privateKeyWrapper}) => {
   //   const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
   //   const collectionHelpers = evmCollectionHelpers(web3, owner);
-  //   let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send();
+  //   let result = await collectionHelpers.methods.createNFTCollection('Sponsor collection', '1', '1').send();
   //   const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
   //   const sponsor = privateKeyWrapper('//Alice');
   //   const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
@@ -73,11 +72,11 @@
   //   expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.false;
   //   result = await collectionEvm.methods.setCollectionSponsorSubstrate(sponsor.addressRaw).send({from: owner});
   //   expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.true;
-    
+
   //   const confirmTx = await api.tx.unique.confirmSponsorship(collectionId);
   //   await submitTransactionAsync(sponsor, confirmTx);
   //   expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.false;
-    
+
   //   const sponsorTuple = await collectionEvm.methods.collectionSponsor().call({from: owner});
   //   expect(bigIntToSub(api, BigInt(sponsorTuple[1]))).to.be.eq(sponsor.address);
   // });
@@ -86,7 +85,7 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const collectionHelpers = helper.ethNativeContract.collectionHelpers(owner);
 
-    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
+    let result = await collectionHelpers.methods.createNFTCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
     const collectionIdAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
     const sponsor = await helper.eth.createAccountWithBalance(donor);
     const collectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', owner);
@@ -94,28 +93,26 @@
     expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.false;
     result = await collectionEvm.methods.setCollectionSponsor(sponsor).send({from: owner});
     expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.true;
-    
+
     await collectionEvm.methods.confirmCollectionSponsorship().send({from: sponsor});
     expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.false;
-    
+
     await collectionEvm.methods.removeCollectionSponsor().send({from: owner});
-    
+
     const sponsorTuple = await collectionEvm.methods.collectionSponsor().call({from: owner});
     expect(sponsorTuple.field_0).to.be.eq('0x0000000000000000000000000000000000000000');
   });
 
   itEth('Sponsoring collection from evm address via access list', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const collectionHelpers = helper.ethNativeContract.collectionHelpers(owner);
 
-    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
-    const collectionIdAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
-    const collectionId = helper.ethAddress.extractCollectionId(collectionIdAddress);
+    const {collectionId, collectionAddress} = await helper.eth.createERC721MetadataCompatibleNFTCollection(owner, 'Sponsor collection', '1', '1', '');
+
     const collection = helper.nft.getCollectionObject(collectionId);
     const sponsor = await helper.eth.createAccountWithBalance(donor);
-    const collectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', owner);
+    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
-    result = await collectionEvm.methods.setCollectionSponsor(sponsor).send({from: owner});
+    await collectionEvm.methods.setCollectionSponsor(sponsor).send({from: owner});
     let collectionData = (await collection.getData())!;
     expect(collectionData.raw.sponsorship.Unconfirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
     await expect(collectionEvm.methods.confirmCollectionSponsorship().call()).to.be.rejectedWith('caller is not set as sponsor');
@@ -144,23 +141,17 @@
     const sponsorBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(sponsor));
 
     {
-      const nextTokenId = await collectionEvm.methods.nextTokenId().call();
-      expect(nextTokenId).to.be.equal('1');
-      const result = await collectionEvm.methods.mintWithTokenURI(
-        user,
-        nextTokenId,
-        'Test URI',
-      ).send({from: user});
+      const result = await collectionEvm.methods.mintWithTokenURI(user, 'Test URI').send({from: user});
       const events = helper.eth.normalizeEvents(result.events);
 
       expect(events).to.be.deep.equal([
         {
-          address: collectionIdAddress,
+          address: collectionAddress,
           event: 'Transfer',
           args: {
             from: '0x0000000000000000000000000000000000000000',
             to: user,
-            tokenId: nextTokenId,
+            tokenId: '1',
           },
         },
       ]);
@@ -178,16 +169,16 @@
   // itWeb3('Sponsoring collection from substrate address via access list', async ({api, web3, privateKeyWrapper}) => {
   //   const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
   //   const collectionHelpers = evmCollectionHelpers(web3, owner);
-  //   const result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send();
+  //   const result = await collectionHelpers.methods.createERC721MetadataCompatibleNFTCollection('Sponsor collection', '1', '1', '').send();
   //   const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
   //   const sponsor = privateKeyWrapper('//Alice');
   //   const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
 
   //   await collectionEvm.methods.setCollectionSponsorSubstrate(sponsor.addressRaw).send({from: owner});
-    
+
   //   const confirmTx = await api.tx.unique.confirmSponsorship(collectionId);
   //   await submitTransactionAsync(sponsor, confirmTx);
-    
+
   //   const user = createEthAccount(web3);
   //   const nextTokenId = await collectionEvm.methods.nextTokenId().call();
   //   expect(nextTokenId).to.be.equal('1');
@@ -232,39 +223,32 @@
 
   itEth('Check that transaction via EVM spend money from sponsor address', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const collectionHelpers = helper.ethNativeContract.collectionHelpers(owner);
 
-    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
-    const collectionIdAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
-    const collectionId = helper.ethAddress.extractCollectionId(collectionIdAddress);
+    const {collectionAddress, collectionId} = await helper.eth.createERC721MetadataCompatibleNFTCollection(owner,'Sponsor collection', '1', '1', '');
     const collection = helper.nft.getCollectionObject(collectionId);
     const sponsor = await helper.eth.createAccountWithBalance(donor);
-    const collectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', owner);
+    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
 
-    result = await collectionEvm.methods.setCollectionSponsor(sponsor).send();
+    await collectionEvm.methods.setCollectionSponsor(sponsor).send();
     let collectionData = (await collection.getData())!;
     expect(collectionData.raw.sponsorship.Unconfirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
     await expect(collectionEvm.methods.confirmCollectionSponsorship().call()).to.be.rejectedWith('caller is not set as sponsor');
 
-    const sponsorCollection = helper.ethNativeContract.collection(collectionIdAddress, 'nft', sponsor);
+    const sponsorCollection = helper.ethNativeContract.collection(collectionAddress, 'nft', sponsor);
     await sponsorCollection.methods.confirmCollectionSponsorship().send();
     collectionData = (await collection.getData())!;
     expect(collectionData.raw.sponsorship.Confirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
 
     const user = helper.eth.createAccount();
     await collectionEvm.methods.addCollectionAdmin(user).send();
-    
+
     const ownerBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(owner));
     const sponsorBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(sponsor));
 
-    const userCollectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', user);
-    const nextTokenId = await userCollectionEvm.methods.nextTokenId().call();
-    expect(nextTokenId).to.be.equal('1');
-    result = await userCollectionEvm.methods.mintWithTokenURI(
-      user,
-      nextTokenId,
-      'Test URI',
-    ).send();
+    const userCollectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', user);
+
+    let result = await userCollectionEvm.methods.mintWithTokenURI(user, 'Test URI',).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     const events = helper.eth.normalizeEvents(result.events);
     const address = helper.ethAddress.fromCollectionId(collectionId);
@@ -276,12 +260,12 @@
         args: {
           from: '0x0000000000000000000000000000000000000000',
           to: user,
-          tokenId: nextTokenId,
+          tokenId: '1',
         },
       },
     ]);
-    expect(await userCollectionEvm.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI');
-  
+    expect(await userCollectionEvm.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');
+
     const ownerBalanceAfter = await helper.balance.getSubstrate(helper.address.ethToSubstrate(owner));
     expect(ownerBalanceAfter).to.be.eq(ownerBalanceBefore);
     const sponsorBalanceAfter = await helper.balance.getSubstrate(helper.address.ethToSubstrate(sponsor));
modifiedtests/src/eth/createNFTCollection.test.tsdiffbeforeafterboth
--- a/tests/src/eth/createNFTCollection.test.ts
+++ b/tests/src/eth/createNFTCollection.test.ts
@@ -35,13 +35,49 @@
     const description = 'Some description';
     const prefix = 'token prefix';
 
-    const {collectionId} = await helper.eth.createNonfungibleCollection(owner, name, description, prefix);
+    const {collectionId} = await helper.eth.createNFTCollection(owner, name, description, prefix);
     const data = (await helper.rft.getData(collectionId))!;
+    const collection = helper.nft.getCollectionObject(collectionId);
+    
+    expect(data.name).to.be.eq(name);
+    expect(data.description).to.be.eq(description);
+    expect(data.raw.tokenPrefix).to.be.eq(prefix);
+    expect(data.raw.mode).to.be.eq('NFT');
+
+    const options = await collection.getOptions();
+
+    expect(options.tokenPropertyPermissions).to.be.empty;
+  });
+
+  itEth('Create collection with properties', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+
+    const name = 'CollectionEVM';
+    const description = 'Some description';
+    const prefix = 'token prefix';
+    const baseUri = 'BaseURI';
+
+    const {collectionId} = await helper.eth.createERC721MetadataCompatibleNFTCollection(owner, name, description, prefix, baseUri);
+
+    const collection = helper.nft.getCollectionObject(collectionId);
+    const data = (await collection.getData())!;
     
     expect(data.name).to.be.eq(name);
     expect(data.description).to.be.eq(description);
     expect(data.raw.tokenPrefix).to.be.eq(prefix);
     expect(data.raw.mode).to.be.eq('NFT');
+
+    const options = await collection.getOptions();
+    expect(options.tokenPropertyPermissions).to.be.deep.equal([
+      {
+        key: 'URI',
+        permission: {mutable: true, collectionAdmin: true, tokenOwner: false},
+      },
+      {
+        key: 'URISuffix',
+        permission: {mutable: true, collectionAdmin: true, tokenOwner: false},
+      },
+    ]);
   });
 
   // this test will occasionally fail when in async environment.
@@ -57,7 +93,7 @@
       .call()).to.be.false;
 
     await collectionHelpers.methods
-      .createNonfungibleCollection('A', 'A', 'A')
+      .createNFTCollection('A', 'A', 'A')
       .send({value: Number(2n * helper.balance.getOneTokenNominal())});
     
     expect(await collectionHelpers.methods
@@ -69,7 +105,7 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const sponsor = await helper.eth.createAccountWithBalance(donor);
     const ss58Format = helper.chain.getChainProperties().ss58Format;
-    const {collectionId, collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'Sponsor', 'absolutely anything', 'ROC');
+    const {collectionId, collectionAddress} = await helper.eth.createNFTCollection(owner, 'Sponsor', 'absolutely anything', 'ROC');
 
     const collection = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
     await collection.methods.setCollectionSponsor(sponsor).send();
@@ -88,7 +124,7 @@
 
   itEth('Set limits', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionId, collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'Limits', 'absolutely anything', 'FLO');
+    const {collectionId, collectionAddress} = await helper.eth.createNFTCollection(owner, 'Limits', 'absolutely anything', 'FLO');
     const limits = {
       accountTokenOwnershipLimit: 1000,
       sponsoredDataSize: 1024,
@@ -131,7 +167,7 @@
       .methods.isCollectionExist(collectionAddressForNonexistentCollection).call())
       .to.be.false;
     
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'Exister', 'absolutely anything', 'EVC');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'Exister', 'absolutely anything', 'EVC');
     expect(await helper.ethNativeContract.collectionHelpers(collectionAddress)
       .methods.isCollectionExist(collectionAddress).call())
       .to.be.true;
@@ -159,7 +195,7 @@
       const tokenPrefix = 'A';
 
       await expect(collectionHelper.methods
-        .createNonfungibleCollection(collectionName, description, tokenPrefix)
+        .createNFTCollection(collectionName, description, tokenPrefix)
         .call({value: Number(2n * nominal)})).to.be.rejectedWith('name is too long. Max length is ' + MAX_NAME_LENGTH);
       
     }
@@ -169,7 +205,7 @@
       const description = 'A'.repeat(MAX_DESCRIPTION_LENGTH + 1);
       const tokenPrefix = 'A';
       await expect(collectionHelper.methods
-        .createNonfungibleCollection(collectionName, description, tokenPrefix)
+        .createNFTCollection(collectionName, description, tokenPrefix)
         .call({value: Number(2n * nominal)})).to.be.rejectedWith('description is too long. Max length is ' + MAX_DESCRIPTION_LENGTH);
     }
     {
@@ -178,7 +214,7 @@
       const description = 'A';
       const tokenPrefix = 'A'.repeat(MAX_TOKEN_PREFIX_LENGTH + 1);
       await expect(collectionHelper.methods
-        .createNonfungibleCollection(collectionName, description, tokenPrefix)
+        .createNFTCollection(collectionName, description, tokenPrefix)
         .call({value: Number(2n * nominal)})).to.be.rejectedWith('token_prefix is too long. Max length is ' + MAX_TOKEN_PREFIX_LENGTH);
     }
   });
@@ -187,14 +223,14 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
     await expect(collectionHelper.methods
-      .createNonfungibleCollection('Peasantry', 'absolutely anything', 'CVE')
+      .createNFTCollection('Peasantry', 'absolutely anything', 'CVE')
       .call({value: Number(1n * nominal)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
   });
 
   itEth('(!negative test!) Check owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const malfeasant = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'Transgressed', 'absolutely anything', 'COR');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'Transgressed', 'absolutely anything', 'COR');
     const malfeasantCollection = helper.ethNativeContract.collection(collectionAddress, 'nft', malfeasant);
     const EXPECTED_ERROR = 'NoPermission';
     {
@@ -217,10 +253,10 @@
 
   itEth('(!negative test!) Set limits', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'Limits', 'absolutely anything', 'OLF');
+    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'Limits', 'absolutely anything', 'OLF');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
     await expect(collectionEvm.methods
       .setCollectionLimit('badLimit', 'true')
       .call()).to.be.rejectedWith('unknown boolean limit "badLimit"');
   });
-});
\ No newline at end of file
+});
modifiedtests/src/eth/createRFTCollection.test.tsdiffbeforeafterboth
--- a/tests/src/eth/createRFTCollection.test.ts
+++ b/tests/src/eth/createRFTCollection.test.ts
@@ -37,13 +37,51 @@
     const description = 'Some description';
     const prefix = 'token prefix';
   
-    const {collectionId} = await helper.eth.createRefungibleCollection(owner, name, description, prefix);
+    const {collectionId} = await helper.eth.createRFTCollection(owner, name, description, prefix);
     const data = (await helper.rft.getData(collectionId))!;
+    const collection = helper.rft.getCollectionObject(collectionId);
+
+    expect(data.name).to.be.eq(name);
+    expect(data.description).to.be.eq(description);
+    expect(data.raw.tokenPrefix).to.be.eq(prefix);
+    expect(data.raw.mode).to.be.eq('ReFungible');
+
+    const options = await collection.getOptions();
+
+    expect(options.tokenPropertyPermissions).to.be.empty;
+  });
+
+  
+
+  itEth('Create collection with properties', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+
+    const name = 'CollectionEVM';
+    const description = 'Some description';
+    const prefix = 'token prefix';
+    const baseUri = 'BaseURI';
+
+    const {collectionId} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, name, description, prefix, baseUri);
 
+    const collection = helper.rft.getCollectionObject(collectionId);
+    const data = (await collection.getData())!;
+    
     expect(data.name).to.be.eq(name);
     expect(data.description).to.be.eq(description);
     expect(data.raw.tokenPrefix).to.be.eq(prefix);
     expect(data.raw.mode).to.be.eq('ReFungible');
+
+    const options = await collection.getOptions();
+    expect(options.tokenPropertyPermissions).to.be.deep.equal([
+      {
+        key: 'URI',
+        permission: {mutable: true, collectionAdmin: true, tokenOwner: false},
+      },
+      {
+        key: 'URISuffix',
+        permission: {mutable: true, collectionAdmin: true, tokenOwner: false},
+      },
+    ]);
   });
   
   // this test will occasionally fail when in async environment.
@@ -71,7 +109,7 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const sponsor = await helper.eth.createAccountWithBalance(donor);
     const ss58Format = helper.chain.getChainProperties().ss58Format;
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Sponsor', 'absolutely anything', 'ENVY');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(owner, 'Sponsor', 'absolutely anything', 'ENVY');
 
     const collection = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
     await collection.methods.setCollectionSponsor(sponsor).send();
@@ -90,7 +128,7 @@
 
   itEth('Set limits', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Limits', 'absolutely anything', 'INSI');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(owner, 'Limits', 'absolutely anything', 'INSI');
     const limits = {
       accountTokenOwnershipLimit: 1000,
       sponsoredDataSize: 1024,
@@ -133,7 +171,7 @@
       .methods.isCollectionExist(collectionAddressForNonexistentCollection).call())
       .to.be.false;
     
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Exister', 'absolutely anything', 'WIWT');
+    const {collectionAddress} = await helper.eth.createRFTCollection(owner, 'Exister', 'absolutely anything', 'WIWT');
     expect(await helper.ethNativeContract.collectionHelpers(collectionAddress)
       .methods.isCollectionExist(collectionAddress).call())
       .to.be.true;
@@ -196,7 +234,7 @@
   itEth('(!negative test!) Check owner', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const peasant = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Transgressed', 'absolutely anything', 'YVNE');
+    const {collectionAddress} = await helper.eth.createRFTCollection(owner, 'Transgressed', 'absolutely anything', 'YVNE');
     const peasantCollection = helper.ethNativeContract.collection(collectionAddress, 'rft', peasant);
     const EXPECTED_ERROR = 'NoPermission';
     {
@@ -219,7 +257,7 @@
 
   itEth('(!negative test!) Set limits', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Limits', 'absolutely anything', 'ISNI');
+    const {collectionAddress} = await helper.eth.createRFTCollection(owner, 'Limits', 'absolutely anything', 'ISNI');
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
     await expect(collectionEvm.methods
       .setCollectionLimit('badLimit', 'true')
modifiedtests/src/eth/evmCoder.test.tsdiffbeforeafterboth
--- a/tests/src/eth/evmCoder.test.ts
+++ b/tests/src/eth/evmCoder.test.ts
@@ -65,7 +65,7 @@
   
   itEth('Call non-existing function', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const collection = await helper.eth.createNonfungibleCollection(owner, 'EVMCODER', '', 'TEST');
+    const collection = await helper.eth.createNFTCollection(owner, 'EVMCODER', '', 'TEST');
     const contract = await helper.ethContract.deployByCode(owner, 'Test', getContractSource(collection.collectionAddress, '0x1bfed5D614b886b9Ab2eA4CBAc22A96B7EC29c9c'));
     const testContract = await helper.ethContract.deployByCode(owner, 'Test', getContractSource(collection.collectionAddress, contract.options.address));
     {
modifiedtests/src/eth/fractionalizer/Fractionalizer.soldiffbeforeafterboth
--- a/tests/src/eth/fractionalizer/Fractionalizer.sol
+++ b/tests/src/eth/fractionalizer/Fractionalizer.sol
@@ -124,8 +124,7 @@
 		address rftTokenAddress;
 		UniqueRefungibleToken rftTokenContract;
 		if (nft2rftMapping[_collection][_token] == 0) {
-			rftTokenId = rftCollectionContract.nextTokenId();
-			rftCollectionContract.mint(address(this), rftTokenId);
+            rftTokenId = rftCollectionContract.mint(address(this));
 			rftTokenAddress = rftCollectionContract.tokenContractAddress(rftTokenId);
 			nft2rftMapping[_collection][_token] = rftTokenId;
 			rft2nftMapping[rftTokenAddress] = Token(_collection, _token);
modifiedtests/src/eth/fractionalizer/fractionalizer.test.tsdiffbeforeafterboth
--- a/tests/src/eth/fractionalizer/fractionalizer.test.ts
+++ b/tests/src/eth/fractionalizer/fractionalizer.test.ts
@@ -62,10 +62,10 @@
 const mintRFTToken = async (helper: EthUniqueHelper, owner: string, fractionalizer: Contract, amount: bigint): Promise<{
   nftCollectionAddress: string, nftTokenId: number, rftTokenAddress: string
 }> => {
-  const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+  const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
   const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-  const nftTokenId = await nftContract.methods.nextTokenId().call();
-  await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+  const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+  const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
 
   await fractionalizer.methods.setNftCollectionIsAllowed(nftCollection.collectionAddress, true).send({from: owner});
   await nftContract.methods.approve(fractionalizer.options.address, nftTokenId).send({from: owner});
@@ -92,7 +92,7 @@
   itEth('Set RFT collection', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 10n);
     const fractionalizer = await deployContract(helper, owner);
-    const rftCollection = await helper.eth.createRefungibleCollection(owner, 'rft', 'RFT collection', 'RFT');
+    const rftCollection = await helper.eth.createRFTCollection(owner, 'rft', 'RFT collection', 'RFT');
     const rftContract = helper.ethNativeContract.collection(rftCollection.collectionAddress, 'rft', owner);
 
     await rftContract.methods.addCollectionAdmin(fractionalizer.options.address).send({from: owner});
@@ -121,7 +121,7 @@
   itEth('Set Allowlist', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
     const {contract: fractionalizer} = await initContract(helper, owner);
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
 
     const result1 = await fractionalizer.methods.setNftCollectionIsAllowed(nftCollection.collectionAddress, true).send({from: owner});
     expect(result1.events).to.be.like({
@@ -146,10 +146,10 @@
   itEth('NFT to RFT', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-    const nftTokenId = await nftContract.methods.nextTokenId().call();
-    await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+    const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+    const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
 
     const {contract: fractionalizer} = await initContract(helper, owner);
 
@@ -231,7 +231,7 @@
 
   itEth('call setRFTCollection twice', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
-    const rftCollection = await helper.eth.createRefungibleCollection(owner, 'rft', 'RFT collection', 'RFT');
+    const rftCollection = await helper.eth.createRFTCollection(owner, 'rft', 'RFT collection', 'RFT');
     const refungibleContract = helper.ethNativeContract.collection(rftCollection.collectionAddress, 'rft', owner);
 
     const fractionalizer = await deployContract(helper, owner);
@@ -244,7 +244,7 @@
 
   itEth('call setRFTCollection with NFT collection', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
 
     const fractionalizer = await deployContract(helper, owner);
@@ -257,7 +257,7 @@
   itEth('call setRFTCollection while not collection admin', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
     const fractionalizer = await deployContract(helper, owner);
-    const rftCollection = await helper.eth.createRefungibleCollection(owner, 'rft', 'RFT collection', 'RFT');
+    const rftCollection = await helper.eth.createRFTCollection(owner, 'rft', 'RFT collection', 'RFT');
 
     await expect(fractionalizer.methods.setRFTCollection(rftCollection.collectionAddress).call())
       .to.be.rejectedWith(/Fractionalizer contract should be an admin of the collection$/g);
@@ -278,10 +278,10 @@
   itEth('call nft2rft without setting RFT collection for contract', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-    const nftTokenId = await nftContract.methods.nextTokenId().call();
-    await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+    const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+    const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
 
     const fractionalizer = await deployContract(helper, owner);
 
@@ -293,10 +293,10 @@
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
     const nftOwner = await helper.eth.createAccountWithBalance(donor, 10n);
 
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-    const nftTokenId = await nftContract.methods.nextTokenId().call();
-    await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+    const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+    const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
     await nftContract.methods.transfer(nftOwner, 1).send({from: owner});
 
 
@@ -310,10 +310,10 @@
   itEth('call nft2rft while not in list of allowed accounts', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-    const nftTokenId = await nftContract.methods.nextTokenId().call();
-    await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+    const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+    const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
 
     const {contract: fractionalizer} = await initContract(helper, owner);
 
@@ -325,10 +325,10 @@
   itEth('call nft2rft while fractionalizer doesnt have approval for nft token', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-    const nftTokenId = await nftContract.methods.nextTokenId().call();
-    await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+    const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+    const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
 
     const {contract: fractionalizer} = await initContract(helper, owner);
 
@@ -341,11 +341,11 @@
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
     const fractionalizer = await deployContract(helper, owner);
-    const rftCollection = await helper.eth.createRefungibleCollection(owner, 'rft', 'RFT collection', 'RFT');
+    const rftCollection = await helper.eth.createRFTCollection(owner, 'rft', 'RFT collection', 'RFT');
     const refungibleContract = helper.ethNativeContract.collection(rftCollection.collectionAddress, 'rft', owner);
-    const rftTokenId = await refungibleContract.methods.nextTokenId().call();
-    await refungibleContract.methods.mint(owner, rftTokenId).send({from: owner});
-    
+    const mintResult = await refungibleContract.methods.mint(owner).send({from: owner});
+    const rftTokenId = mintResult.events.Transfer.returnValues.tokenId;
+
     await expect(fractionalizer.methods.rft2nft(rftCollection.collectionAddress, rftTokenId).call({from: owner}))
       .to.be.rejectedWith(/RFT collection is not set$/g);
   });
@@ -354,18 +354,18 @@
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
     const {contract: fractionalizer} = await initContract(helper, owner);
-    const rftCollection = await helper.eth.createRefungibleCollection(owner, 'rft', 'RFT collection', 'RFT');
+    const rftCollection = await helper.eth.createRFTCollection(owner, 'rft', 'RFT collection', 'RFT');
     const refungibleContract = helper.ethNativeContract.collection(rftCollection.collectionAddress, 'rft', owner);
-    const rftTokenId = await refungibleContract.methods.nextTokenId().call();
-    await refungibleContract.methods.mint(owner, rftTokenId).send({from: owner});
-    
+    const mintResult = await refungibleContract.methods.mint(owner).send({from: owner});
+    const rftTokenId = mintResult.events.Transfer.returnValues.tokenId;
+
     await expect(fractionalizer.methods.rft2nft(rftCollection.collectionAddress, rftTokenId).call())
       .to.be.rejectedWith(/Wrong RFT collection$/g);
   });
 
   itEth('call rft2nft for RFT token that was not minted by fractionalizer contract', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
-    const rftCollection = await helper.eth.createRefungibleCollection(owner, 'rft', 'RFT collection', 'RFT');
+    const rftCollection = await helper.eth.createRFTCollection(owner, 'rft', 'RFT collection', 'RFT');
     const refungibleContract = helper.ethNativeContract.collection(rftCollection.collectionAddress, 'rft', owner);
 
     const fractionalizer = await deployContract(helper, owner);
@@ -373,9 +373,9 @@
     await refungibleContract.methods.addCollectionAdmin(fractionalizer.options.address).send({from: owner});
     await fractionalizer.methods.setRFTCollection(rftCollection.collectionAddress).send({from: owner});
 
-    const rftTokenId = await refungibleContract.methods.nextTokenId().call();
-    await refungibleContract.methods.mint(owner, rftTokenId).send({from: owner});
-    
+    const mintResult = await refungibleContract.methods.mint(owner).send({from: owner});
+    const rftTokenId = mintResult.events.Transfer.returnValues.tokenId;
+
     await expect(fractionalizer.methods.rft2nft(rftCollection.collectionAddress, rftTokenId).call())
       .to.be.rejectedWith(/No corresponding NFT token found$/g);
   });
@@ -386,7 +386,7 @@
 
     const {contract: fractionalizer, rftCollectionAddress} = await initContract(helper, owner);
     const {rftTokenAddress} = await mintRFTToken(helper, owner, fractionalizer, 100n);
-    
+
     const {tokenId} = helper.ethAddress.extractTokenId(rftTokenAddress);
     const refungibleTokenContract = helper.ethNativeContract.rftToken(rftTokenAddress, owner);
     await refungibleTokenContract.methods.transfer(receiver, 50).send({from: owner});
@@ -420,7 +420,7 @@
     await expect(fractionalizer.methods.nft2rft(nftCollectionAddress, nftToken.tokenId, 100).call())
       .to.be.rejectedWith(/TransferNotAllowed$/g);
   });
-  
+
   itEth('fractionalize NFT with RFT transfers disallowed', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor, 20n);
 
@@ -432,10 +432,10 @@
     await fractionalizer.methods.setRFTCollection(rftCollectionAddress).send({from: owner});
     await helper.executeExtrinsic(donor, 'api.tx.unique.setTransfersEnabledFlag', [rftCollection.collectionId, false], true);
 
-    const nftCollection = await helper.eth.createNonfungibleCollection(owner, 'nft', 'NFT collection', 'NFT');
+    const nftCollection = await helper.eth.createNFTCollection(owner, 'nft', 'NFT collection', 'NFT');
     const nftContract = helper.ethNativeContract.collection(nftCollection.collectionAddress, 'nft', owner);
-    const nftTokenId = await nftContract.methods.nextTokenId().call();
-    await nftContract.methods.mint(owner, nftTokenId).send({from: owner});
+    const mintResult = await nftContract.methods.mint(owner).send({from: owner});
+    const nftTokenId = mintResult.events.Transfer.returnValues.tokenId;
 
     await fractionalizer.methods.setNftCollectionIsAllowed(nftCollection.collectionAddress, true).send({from: owner});
     await nftContract.methods.approve(fractionalizer.options.address, nftTokenId).send({from: owner});
modifiedtests/src/eth/fungibleAbi.jsondiffbeforeafterboth
--- a/tests/src/eth/fungibleAbi.json
+++ b/tests/src/eth/fungibleAbi.json
@@ -116,6 +116,15 @@
     "type": "function"
   },
   {
+    "inputs": [
+      { "internalType": "address", "name": "newOwner", "type": "address" }
+    ],
+    "name": "changeCollectionOwner",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [],
     "name": "collectionOwner",
     "outputs": [
@@ -329,15 +338,6 @@
       { "internalType": "address", "name": "sponsor", "type": "address" }
     ],
     "name": "setCollectionSponsor",
-    "outputs": [],
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      { "internalType": "address", "name": "newOwner", "type": "address" }
-    ],
-    "name": "setOwner",
     "outputs": [],
     "stateMutability": "nonpayable",
     "type": "function"
modifiedtests/src/eth/nesting/nest.test.tsdiffbeforeafterboth
--- a/tests/src/eth/nesting/nest.test.ts
+++ b/tests/src/eth/nesting/nest.test.ts
@@ -7,7 +7,7 @@
   helper: EthUniqueHelper,
   owner: string,
 ): Promise<{ collectionId: number, collectionAddress: string, contract: Contract }> => {
-  const {collectionAddress, collectionId} = await helper.eth.createNonfungibleCollection(owner, 'A', 'B', 'C');
+  const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
 
   const contract = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
   await contract.methods.setCollectionNesting(true).send({from: owner});
@@ -29,74 +29,53 @@
     itEth('NFT: allows an Owner to nest/unnest their token', async ({helper}) => {
       const owner = await helper.eth.createAccountWithBalance(donor);
       const {collectionId, contract} = await createNestingCollection(helper, owner);
-  
-      // Create a token to be nested
-      const targetNFTTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        owner,
-        targetNFTTokenId,
-      ).send({from: owner});
-  
+
+      // Create a token to be nested to
+      const mintingTargetNFTTokenIdResult = await contract.methods.mint(owner).send({from: owner});
+      const targetNFTTokenId = mintingTargetNFTTokenIdResult.events.Transfer.returnValues.tokenId;
       const targetNftTokenAddress = helper.ethAddress.fromTokenId(collectionId, targetNFTTokenId);
-  
+
       // Create a nested token
-      const firstTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        targetNftTokenAddress,
-        firstTokenId,
-      ).send({from: owner});
-  
+      const mintingFirstTokenIdResult = await contract.methods.mint(targetNftTokenAddress).send({from: owner});
+      const firstTokenId = mintingFirstTokenIdResult.events.Transfer.returnValues.tokenId;
       expect(await contract.methods.ownerOf(firstTokenId).call()).to.be.equal(targetNftTokenAddress);
-  
+
       // Create a token to be nested and nest
-      const secondTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        owner,
-        secondTokenId,
-      ).send({from: owner});
-  
+      const mintingSecondTokenIdResult = await contract.methods.mint(owner).send({from: owner});
+      const secondTokenId = mintingSecondTokenIdResult.events.Transfer.returnValues.tokenId;
+
       await contract.methods.transfer(targetNftTokenAddress, secondTokenId).send({from: owner});
-  
       expect(await contract.methods.ownerOf(secondTokenId).call()).to.be.equal(targetNftTokenAddress);
-  
+
       // Unnest token back
       await contract.methods.transferFrom(targetNftTokenAddress, owner, secondTokenId).send({from: owner});
       expect(await contract.methods.ownerOf(secondTokenId).call()).to.be.equal(owner);
     });
-  
+
     itEth('NFT: allows an Owner to nest/unnest their token (Restricted nesting)', async ({helper}) => {
       const owner = await helper.eth.createAccountWithBalance(donor);
-  
+
       const {collectionId: collectionIdA, collectionAddress: collectionAddressA, contract: contractA} = await createNestingCollection(helper, owner);
       const {collectionAddress: collectionAddressB, contract: contractB} = await createNestingCollection(helper, owner);
       await contractA.methods.setCollectionNesting(true, [collectionAddressA, collectionAddressB]).send({from: owner});
-  
+
       // Create a token to nest into
-      const targetNftTokenId = await contractA.methods.nextTokenId().call();
-      await contractA.methods.mint(
-        owner,
-        targetNftTokenId,
-      ).send({from: owner});
+      const mintingtargetNftTokenIdResult = await contractA.methods.mint(owner).send({from: owner});
+      const targetNftTokenId = mintingtargetNftTokenIdResult.events.Transfer.returnValues.tokenId;
       const nftTokenAddressA1 = helper.ethAddress.fromTokenId(collectionIdA, targetNftTokenId);
-  
+
       // Create a token for nesting in the same collection as the target
-      const nftTokenIdA = await contractA.methods.nextTokenId().call();
-      await contractA.methods.mint(
-        owner,
-        nftTokenIdA,
-      ).send({from: owner});
-  
+      const mintingTokenIdAResult = await contractA.methods.mint(owner).send({from: owner});
+      const nftTokenIdA = mintingTokenIdAResult.events.Transfer.returnValues.tokenId;
+
       // Create a token for nesting in a different collection
-      const nftTokenIdB = await contractB.methods.nextTokenId().call();
-      await contractB.methods.mint(
-        owner,
-        nftTokenIdB,
-      ).send({from: owner});
-  
+      const mintingTokenIdBResult = await contractB.methods.mint(owner).send({from: owner});
+      const nftTokenIdB = mintingTokenIdBResult.events.Transfer.returnValues.tokenId;
+
       // Nest
       await contractA.methods.transfer(nftTokenAddressA1, nftTokenIdA).send({from: owner});
       expect(await contractA.methods.ownerOf(nftTokenIdA).call()).to.be.equal(nftTokenAddressA1);
-  
+
       await contractB.methods.transfer(nftTokenAddressA1, nftTokenIdB).send({from: owner});
       expect(await contractB.methods.ownerOf(nftTokenIdB).call()).to.be.equal(nftTokenAddressA1);
     });
@@ -105,112 +84,88 @@
   describe('Negative Test: EVM Nesting', async() => {
     itEth('NFT: disallows to nest token if nesting is disabled', async ({helper}) => {
       const owner = await helper.eth.createAccountWithBalance(donor);
-  
+
       const {collectionId, contract} = await createNestingCollection(helper, owner);
       await contract.methods.setCollectionNesting(false).send({from: owner});
-  
+
       // Create a token to nest into
-      const targetNftTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        owner,
-        targetNftTokenId,
-      ).send({from: owner});
-  
-      const targetNftTokenAddress = helper.ethAddress.fromTokenId(collectionId, targetNftTokenId);
-  
+      const mintingTargetTokenIdResult = await contract.methods.mint(owner).send({from: owner});
+      const targetTokenId = mintingTargetTokenIdResult.events.Transfer.returnValues.tokenId;
+      const targetNftTokenAddress = helper.ethAddress.fromTokenId(collectionId, targetTokenId);
+
       // Create a token to nest
-      const nftTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        owner,
-        nftTokenId,
-      ).send({from: owner});
-  
+      const mintingNftTokenIdResult = await contract.methods.mint(owner).send({from: owner});
+      const nftTokenId = mintingNftTokenIdResult.events.Transfer.returnValues.tokenId;
+
       // Try to nest
       await expect(contract.methods
         .transfer(targetNftTokenAddress, nftTokenId)
         .call({from: owner})).to.be.rejectedWith('UserIsNotAllowedToNest');
     });
-  
+
     itEth('NFT: disallows a non-Owner to nest someone else\'s token', async ({helper}) => {
       const owner = await helper.eth.createAccountWithBalance(donor);
       const malignant = await helper.eth.createAccountWithBalance(donor);
-  
+
       const {collectionId, contract} = await createNestingCollection(helper, owner);
-  
+
       // Mint a token
-      const targetTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        owner,
-        targetTokenId,
-      ).send({from: owner});
+      const mintingTargetTokenIdResult = await contract.methods.mint(owner).send({from: owner});
+      const targetTokenId = mintingTargetTokenIdResult.events.Transfer.returnValues.tokenId;
       const targetTokenAddress = helper.ethAddress.fromTokenId(collectionId, targetTokenId);
-  
+
       // Mint a token belonging to a different account
-      const tokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(
-        malignant,
-        tokenId,
-      ).send({from: owner});
-  
+      const mintingTokenIdResult = await contract.methods.mint(malignant).send({from: owner});
+      const tokenId = mintingTokenIdResult.events.Transfer.returnValues.tokenId;
+
       // Try to nest one token in another as a non-owner account
       await expect(contract.methods
         .transfer(targetTokenAddress, tokenId)
         .call({from: malignant})).to.be.rejectedWith('UserIsNotAllowedToNest');
     });
-  
+
     itEth('NFT: disallows a non-Owner to nest someone else\'s token (Restricted nesting)', async ({helper}) => {
       const owner = await helper.eth.createAccountWithBalance(donor);
       const malignant = await helper.eth.createAccountWithBalance(donor);
-  
+
       const {collectionId: collectionIdA, collectionAddress: collectionAddressA, contract: contractA} = await createNestingCollection(helper, owner);
       const {collectionAddress: collectionAddressB, contract: contractB} = await createNestingCollection(helper, owner);
-  
+
       await contractA.methods.setCollectionNesting(true, [collectionAddressA, collectionAddressB]).send({from: owner});
-  
+
       // Create a token in one collection
-      const nftTokenIdA = await contractA.methods.nextTokenId().call();
-      await contractA.methods.mint(
-        owner,
-        nftTokenIdA,
-      ).send({from: owner});
+      const mintingTokenIdAResult = await contractA.methods.mint(owner).send({from: owner});
+      const nftTokenIdA = mintingTokenIdAResult.events.Transfer.returnValues.tokenId;
       const nftTokenAddressA = helper.ethAddress.fromTokenId(collectionIdA, nftTokenIdA);
-  
-      // Create a token in another collection belonging to someone else
-      const nftTokenIdB = await contractB.methods.nextTokenId().call();
-      await contractB.methods.mint(
-        malignant,
-        nftTokenIdB,
-      ).send({from: owner});
-  
+
+      // Create a token in another collection
+      const mintingTokenIdBResult = await contractB.methods.mint(malignant).send({from: owner});
+      const nftTokenIdB = mintingTokenIdBResult.events.Transfer.returnValues.tokenId;
+
       // Try to drag someone else's token into the other collection and nest
       await expect(contractB.methods
         .transfer(nftTokenAddressA, nftTokenIdB)
         .call({from: malignant})).to.be.rejectedWith('UserIsNotAllowedToNest');
     });
-  
+
     itEth('NFT: disallows to nest token in an unlisted collection', async ({helper}) => {
       const owner = await helper.eth.createAccountWithBalance(donor);
-  
+
       const {collectionId: collectionIdA, collectionAddress: collectionAddressA, contract: contractA} = await createNestingCollection(helper, owner);
       const {contract: contractB} = await createNestingCollection(helper, owner);
-  
+
       await contractA.methods.setCollectionNesting(true, [collectionAddressA]).send({from: owner});
-  
+
       // Create a token in one collection
-      const nftTokenIdA = await contractA.methods.nextTokenId().call();
-      await contractA.methods.mint(
-        owner,
-        nftTokenIdA,
-      ).send({from: owner});
+      const mintingTokenIdAResult = await contractA.methods.mint(owner).send({from: owner});
+      const nftTokenIdA = mintingTokenIdAResult.events.Transfer.returnValues.tokenId;
       const nftTokenAddressA = helper.ethAddress.fromTokenId(collectionIdA, nftTokenIdA);
-  
+
       // Create a token in another collection
-      const nftTokenIdB = await contractB.methods.nextTokenId().call();
-      await contractB.methods.mint(
-        owner,
-        nftTokenIdB,
-      ).send({from: owner});
-  
+      const mintingTokenIdBResult = await contractB.methods.mint(owner).send({from: owner});
+      const nftTokenIdB = mintingTokenIdBResult.events.Transfer.returnValues.tokenId;
+
+
       // Try to nest into a token in the other collection, disallowed in the first
       await expect(contractB.methods
         .transfer(nftTokenAddressA, nftTokenIdB)
modifiedtests/src/eth/nonFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -29,7 +29,7 @@
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
-  
+
   itEth('totalSupply', async ({helper}) => {
     const collection = await helper.nft.mintCollection(alice, {});
     await collection.mintToken(alice);
@@ -68,6 +68,16 @@
 
     expect(owner).to.equal(caller);
   });
+
+  itEth('name/symbol is available regardless of ERC721Metadata support', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {name: 'test', tokenPrefix: 'TEST'});
+    const caller = helper.eth.createAccount();
+
+    const contract = helper.ethNativeContract.collectionById(collection.collectionId, 'nft', caller);
+
+    expect(await contract.methods.name().call()).to.equal('test');
+    expect(await contract.methods.symbol().call()).to.equal('TEST');
+  });
 });
 
 describe('Check ERC721 token URI for NFT', () => {
@@ -79,34 +89,29 @@
     });
   });
 
-  async function setup(helper: EthUniqueHelper, tokenPrefix: string, propertyKey?: string, propertyValue?: string): Promise<{contract: Contract, nextTokenId: string}> {
+  async function setup(helper: EthUniqueHelper, baseUri: string, propertyKey?: string, propertyValue?: string): Promise<{contract: Contract, nextTokenId: string}> {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
 
-    const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
-    let result = await collectionHelper.methods.createERC721MetadataCompatibleCollection('Mint collection', 'a', 'b', tokenPrefix).send({value: Number(2n * helper.balance.getOneTokenNominal())});
-    const collectionAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
+    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleNFTCollection(owner, 'Mint collection', 'a', 'b', baseUri);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
-    
-    const nextTokenId = await contract.methods.nextTokenId().call();
-    expect(nextTokenId).to.be.equal('1');
-    result = await contract.methods.mint(
-      receiver,
-      nextTokenId,
-    ).send();
 
+    const result = await contract.methods.mint(receiver).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
+    expect(tokenId).to.be.equal('1');
+
     if (propertyKey && propertyValue) {
       // Set URL or suffix
-      await contract.methods.setProperty(nextTokenId, propertyKey, Buffer.from(propertyValue)).send();
+      await contract.methods.setProperty(tokenId, propertyKey, Buffer.from(propertyValue)).send();
     }
 
     const event = result.events.Transfer;
     expect(event.address).to.be.equal(collectionAddress);
     expect(event.returnValues.from).to.be.equal('0x0000000000000000000000000000000000000000');
     expect(event.returnValues.to).to.be.equal(receiver);
-    expect(event.returnValues.tokenId).to.be.equal(nextTokenId);
+    expect(event.returnValues.tokenId).to.be.equal(tokenId);
 
-    return {contract, nextTokenId};
+    return {contract, nextTokenId: tokenId};
   }
 
   itEth('Empty tokenURI', async ({helper}) => {
@@ -115,18 +120,18 @@
   });
 
   itEth('TokenURI from url', async ({helper}) => {
-    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'url', 'Token URI');
+    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'URI', 'Token URI');
     expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Token URI');
   });
 
-  itEth('TokenURI from baseURI + tokenId', async ({helper}) => {
+  itEth('TokenURI from baseURI', async ({helper}) => {
     const {contract, nextTokenId} = await setup(helper, 'BaseURI_');
-    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + nextTokenId);
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_');
   });
 
   itEth('TokenURI from baseURI + suffix', async ({helper}) => {
     const suffix = '/some/suffix';
-    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'suffix', suffix);
+    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'URISuffix', suffix);
     expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + suffix);
   });
 });
@@ -146,24 +151,19 @@
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
 
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'Minty', '6', '6');
+    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleNFTCollection(owner, 'Mint collection', '6', '6', '');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
-    const nextTokenId = await contract.methods.nextTokenId().call();
 
-    expect(nextTokenId).to.be.equal('1');
-    const result = await contract.methods.mintWithTokenURI(
-      receiver,
-      nextTokenId,
-      'Test URI',
-    ).send();
+    const result = await contract.methods.mintWithTokenURI(receiver, 'Test URI').send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
+    expect(tokenId).to.be.equal('1');
 
     const event = result.events.Transfer;
     expect(event.address).to.be.equal(collectionAddress);
     expect(event.returnValues.from).to.be.equal('0x0000000000000000000000000000000000000000');
     expect(event.returnValues.to).to.be.equal(receiver);
-    expect(event.returnValues.tokenId).to.be.equal(nextTokenId);
 
-    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI');
+    expect(await contract.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');
 
     // TODO: this wont work right now, need release 919000 first
     // await helper.methods.setOffchainSchema(collectionIdAddress, 'https://offchain-service.local/token-info/{id}').send();
@@ -216,7 +216,7 @@
 
     {
       const result = await contract.methods.burn(tokenId).send({from: caller});
-      
+
       const event = result.events.Transfer;
       expect(event.address).to.be.equal(collectionAddress);
       expect(event.returnValues.from).to.be.equal(caller);
@@ -322,7 +322,7 @@
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
-  
+
   itEth('approve() call fee is less than 0.2UNQ', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const spender = helper.eth.createAccount();
@@ -403,7 +403,7 @@
 
     const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft');
-    
+
     const events: any = [];
     contract.events.allEvents((_: any, event: any) => {
       events.push(event);
@@ -428,7 +428,7 @@
 
     const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft');
-    
+
     const events: any = [];
     contract.events.allEvents((_: any, event: any) => {
       events.push(event);
@@ -455,13 +455,14 @@
 
     const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft');
-    
+
     const events: any = [];
     contract.events.allEvents((_: any, event: any) => {
       events.push(event);
     });
 
     await token.transferFrom(bob, {Substrate: alice.address}, {Ethereum: receiver});
+
     if (events.length == 0) await helper.wait.newBlocks(1);
     const event = events[0];
 
@@ -479,13 +480,14 @@
 
     const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft');
-    
+
     const events: any = [];
     contract.events.allEvents((_: any, event: any) => {
       events.push(event);
     });
 
     await token.transfer(alice, {Ethereum: receiver});
+
     if (events.length == 0) await helper.wait.newBlocks(1);
     const event = events[0];
 
@@ -509,7 +511,23 @@
 
   itEth('Returns collection name', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const collection = await helper.nft.mintCollection(alice, {name: 'oh River', tokenPrefix: 'CHANGE'});
+    const tokenPropertyPermissions = [{
+      key: 'URI',
+      permission: {
+        mutable: true,
+        collectionAdmin: true,
+        tokenOwner: false,
+      },
+    }];
+    const collection = await helper.nft.mintCollection(
+      alice,
+      {
+        name: 'oh River',
+        tokenPrefix: 'CHANGE',
+        properties: [{key: 'ERC721Metadata', value: '1'}],
+        tokenPropertyPermissions,
+      },
+    );
 
     const contract = helper.ethNativeContract.collectionById(collection.collectionId, 'nft', caller);
     const name = await contract.methods.name().call();
@@ -518,10 +536,26 @@
 
   itEth('Returns symbol name', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const collection = await helper.nft.mintCollection(alice, {name: 'oh River', tokenPrefix: 'CHANGE'});
+    const tokenPropertyPermissions = [{
+      key: 'URI',
+      permission: {
+        mutable: true,
+        collectionAdmin: true,
+        tokenOwner: false,
+      },
+    }];
+    const collection = await helper.nft.mintCollection(
+      alice,
+      {
+        name: 'oh River',
+        tokenPrefix: 'CHANGE',
+        properties: [{key: 'ERC721Metadata', value: '1'}],
+        tokenPropertyPermissions,
+      },
+    );
 
     const contract = helper.ethNativeContract.collectionById(collection.collectionId, 'nft', caller);
     const symbol = await contract.methods.symbol().call();
     expect(symbol).to.equal('CHANGE');
   });
-});
\ No newline at end of file
+});
modifiedtests/src/eth/nonFungibleAbi.jsondiffbeforeafterboth
--- a/tests/src/eth/nonFungibleAbi.json
+++ b/tests/src/eth/nonFungibleAbi.json
@@ -146,6 +146,15 @@
     "type": "function"
   },
   {
+    "inputs": [
+      { "internalType": "address", "name": "newOwner", "type": "address" }
+    ],
+    "name": "changeCollectionOwner",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [],
     "name": "collectionOwner",
     "outputs": [
@@ -260,12 +269,9 @@
     "type": "function"
   },
   {
-    "inputs": [
-      { "internalType": "address", "name": "to", "type": "address" },
-      { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
-    ],
+    "inputs": [{ "internalType": "address", "name": "to", "type": "address" }],
     "name": "mint",
-    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
     "stateMutability": "nonpayable",
     "type": "function"
   },
@@ -287,7 +293,7 @@
           { "internalType": "uint256", "name": "field_0", "type": "uint256" },
           { "internalType": "string", "name": "field_1", "type": "string" }
         ],
-        "internalType": "struct Tuple8[]",
+        "internalType": "struct Tuple6[]",
         "name": "tokens",
         "type": "tuple[]"
       }
@@ -300,11 +306,10 @@
   {
     "inputs": [
       { "internalType": "address", "name": "to", "type": "address" },
-      { "internalType": "uint256", "name": "tokenId", "type": "uint256" },
       { "internalType": "string", "name": "tokenUri", "type": "string" }
     ],
     "name": "mintWithTokenURI",
-    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
     "stateMutability": "nonpayable",
     "type": "function"
   },
@@ -476,15 +481,6 @@
       { "internalType": "address", "name": "sponsor", "type": "address" }
     ],
     "name": "setCollectionSponsor",
-    "outputs": [],
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      { "internalType": "address", "name": "newOwner", "type": "address" }
-    ],
-    "name": "setOwner",
     "outputs": [],
     "stateMutability": "nonpayable",
     "type": "function"
modifiedtests/src/eth/payable.test.tsdiffbeforeafterboth
--- a/tests/src/eth/payable.test.ts
+++ b/tests/src/eth/payable.test.ts
@@ -118,7 +118,7 @@
     const deployer = await helper.eth.createAccountWithBalance(donor);
     const caller = await helper.eth.createAccountWithBalance(donor);
     const contract = await helper.eth.deployFlipper(deployer);
-    
+
     const initialCallerBalance = await helper.balance.getEthereum(caller);
     await contract.methods.flip().send({from: caller});
     const finalCallerBalance = await helper.balance.getEthereum(caller);
@@ -129,7 +129,7 @@
     const deployer = await helper.eth.createAccountWithBalance(donor);
     const caller = await helper.eth.createAccountWithBalance(donor);
     const contract = await deployProxyContract(helper, deployer);
-    
+
     const initialCallerBalance = await helper.balance.getEthereum(caller);
     const initialContractBalance = await helper.balance.getEthereum(contract.options.address);
     await contract.methods.flip().send({from: caller});
@@ -138,7 +138,7 @@
     expect(finalCallerBalance < initialCallerBalance).to.be.true;
     expect(finalContractBalance == initialContractBalance).to.be.true;
   });
-  
+
   itEth('Fee for nested calls to native methods is withdrawn from the user', async({helper}) => {
     const CONTRACT_BALANCE = 2n * helper.balance.getOneTokenNominal();
 
@@ -146,7 +146,7 @@
     const caller = await helper.eth.createAccountWithBalance(donor);
     const contract = await deployProxyContract(helper, deployer);
 
-    const collectionAddress = (await contract.methods.createNonfungibleCollection().send({from: caller, value: Number(CONTRACT_BALANCE)})).events.CollectionCreated.returnValues.collection;
+    const collectionAddress = (await contract.methods.createNFTCollection().send({from: caller, value: Number(CONTRACT_BALANCE)})).events.CollectionCreated.returnValues.collection;
     const initialCallerBalance = await helper.balance.getEthereum(caller);
     const initialContractBalance = await helper.balance.getEthereum(contract.options.address);
     await contract.methods.mintNftToken(collectionAddress).send({from: caller});
@@ -155,7 +155,7 @@
     expect(finalCallerBalance < initialCallerBalance).to.be.true;
     expect(finalContractBalance == initialContractBalance).to.be.true;
   });
-  
+
   itEth('Fee for nested calls to create*Collection methods is withdrawn from the user and from the contract', async({helper}) => {
     const CONTRACT_BALANCE = 2n * helper.balance.getOneTokenNominal();
     const deployer = await helper.eth.createAccountWithBalance(donor);
@@ -164,7 +164,7 @@
 
     const initialCallerBalance = await helper.balance.getEthereum(caller);
     const initialContractBalance = await helper.balance.getEthereum(contract.options.address);
-    await contract.methods.createNonfungibleCollection().send({from: caller, value: Number(CONTRACT_BALANCE)});
+    await contract.methods.createNFTCollection().send({from: caller, value: Number(CONTRACT_BALANCE)});
     const finalCallerBalance = await helper.balance.getEthereum(caller);
     const finalContractBalance = await helper.balance.getEthereum(contract.options.address);
     expect(finalCallerBalance < initialCallerBalance).to.be.true;
@@ -176,9 +176,9 @@
     const BIG_FEE = 3n * helper.balance.getOneTokenNominal();
     const caller = await helper.eth.createAccountWithBalance(donor);
     const collectionHelper = helper.ethNativeContract.collectionHelpers(caller);
-        
-    await expect(collectionHelper.methods.createNonfungibleCollection('A', 'B', 'C').call({value: Number(SMALL_FEE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
-    await expect(collectionHelper.methods.createNonfungibleCollection('A', 'B', 'C').call({value: Number(BIG_FEE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
+
+    await expect(collectionHelper.methods.createNFTCollection('A', 'B', 'C').call({value: Number(SMALL_FEE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
+    await expect(collectionHelper.methods.createNFTCollection('A', 'B', 'C').call({value: Number(BIG_FEE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
   });
 
   itEth('Negative test: call createRFTCollection with wrong fee', async({helper}) => {
@@ -186,7 +186,7 @@
     const BIG_FEE = 3n * helper.balance.getOneTokenNominal();
     const caller = await helper.eth.createAccountWithBalance(donor);
     const collectionHelper = helper.ethNativeContract.collectionHelpers(caller);
-        
+
     await expect(collectionHelper.methods.createRFTCollection('A', 'B', 'C').call({value: Number(SMALL_FEE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
     await expect(collectionHelper.methods.createRFTCollection('A', 'B', 'C').call({value: Number(BIG_FEE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
   });
@@ -227,16 +227,15 @@
           InnerContract(innerContract).flip();
         }
 
-        function createNonfungibleCollection() external payable {
+        function createNFTCollection() external payable {
           address collectionHelpers = 0x6C4E9fE1AE37a41E93CEE429e8E1881aBdcbb54F;
-		      address nftCollection = CollectionHelpers(collectionHelpers).createNonfungibleCollection{value: msg.value}("A", "B", "C");
+		      address nftCollection = CollectionHelpers(collectionHelpers).createNFTCollection{value: msg.value}("A", "B", "C");
           emit CollectionCreated(nftCollection);
         }
 
         function mintNftToken(address collectionAddress) external  {
           UniqueNFT collection = UniqueNFT(collectionAddress);
-          uint256 tokenId = collection.nextTokenId();
-          collection.mint(msg.sender, tokenId);
+          uint256 tokenId = collection.mint(msg.sender);
           emit TokenMinted(tokenId);
         }
 
modifiedtests/src/eth/proxy/UniqueNFTProxy.soldiffbeforeafterboth
--- a/tests/src/eth/proxy/UniqueNFTProxy.sol
+++ b/tests/src/eth/proxy/UniqueNFTProxy.sol
@@ -120,20 +120,19 @@
         return proxied.mintingFinished();
     }
 
-    function mint(address to, uint256 tokenId)
+    function mint(address to)
         external
         override
-        returns (bool)
+        returns (uint256)
     {
-        return proxied.mint(to, tokenId);
+        return proxied.mint(to);
     }
 
     function mintWithTokenURI(
         address to,
-        uint256 tokenId,
         string memory tokenUri
-    ) external override returns (bool) {
-        return proxied.mintWithTokenURI(to, tokenId, tokenUri);
+    ) external override returns (uint256) {
+        return proxied.mintWithTokenURI(to, tokenUri);
     }
 
     function finishMinting() external override returns (bool) {
@@ -169,7 +168,7 @@
         return proxied.mintBulk(to, tokenIds);
     }
 
-    function mintBulkWithTokenURI(address to, Tuple0[] memory tokens)
+    function mintBulkWithTokenURI(address to, Tuple6[] memory tokens)
         external
         override
         returns (bool)
modifiedtests/src/eth/proxy/nonFungibleProxy.test.tsdiffbeforeafterboth
--- a/tests/src/eth/proxy/nonFungibleProxy.test.ts
+++ b/tests/src/eth/proxy/nonFungibleProxy.test.ts
@@ -101,7 +101,7 @@
 
   itEth('Can perform mint()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createNonfungibleCollection(owner, 'A', 'A', 'A');
+    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleNFTCollection(owner, 'A', 'A', 'A', '');
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
 
@@ -111,13 +111,11 @@
     await collectionEvmOwned.methods.addCollectionAdmin(contract.options.address).send();
 
     {
-      const nextTokenId = await contract.methods.nextTokenId().call();
-      expect(nextTokenId).to.be.equal('1');
-      const result = await contract.methods.mintWithTokenURI(
-        receiver,
-        nextTokenId,
-        'Test URI',
-      ).send({from: caller});
+      const nextTokenId = await contract.methods.nextTokenId().call()
+      const result = await contract.methods.mintWithTokenURI(receiver, nextTokenId, 'Test URI').send({from: caller});
+      const tokenId = result.events.Transfer.returnValues.tokenId;
+      expect(tokenId).to.be.equal('1');
+
       const events = helper.eth.normalizeEvents(result.events);
       events[0].address = events[0].address.toLocaleLowerCase();
 
@@ -128,12 +126,12 @@
           args: {
             from: '0x0000000000000000000000000000000000000000',
             to: receiver,
-            tokenId: nextTokenId,
+            tokenId,
           },
         },
       ]);
 
-      expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI');
+      expect(await contract.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');
     }
   });
 
modifiedtests/src/eth/reFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungible.test.ts
+++ b/tests/src/eth/reFungible.test.ts
@@ -31,31 +31,23 @@
 
   itEth('totalSupply', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'TotalSupply', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'TotalSupply', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
-    const nextTokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, nextTokenId).send();
+
+    await contract.methods.mint(caller).send();
+
     const totalSupply = await contract.methods.totalSupply().call();
     expect(totalSupply).to.equal('1');
   });
 
   itEth('balanceOf', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'BalanceOf', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'BalanceOf', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    {
-      const nextTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(caller, nextTokenId).send();
-    }
-    {
-      const nextTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(caller, nextTokenId).send();
-    }
-    {
-      const nextTokenId = await contract.methods.nextTokenId().call();
-      await contract.methods.mint(caller, nextTokenId).send();
-    }
+    await contract.methods.mint(caller).send();
+    await contract.methods.mint(caller).send();
+    await contract.methods.mint(caller).send();
 
     const balance = await contract.methods.balanceOf(caller).call();
     expect(balance).to.equal('3');
@@ -63,11 +55,11 @@
 
   itEth('ownerOf', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'OwnerOf', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'OwnerOf', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     const owner = await contract.methods.ownerOf(tokenId).call();
     expect(owner).to.equal(caller);
@@ -76,11 +68,11 @@
   itEth('ownerOf after burn', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'OwnerOf-AfterBurn', '6', '6');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'OwnerOf-AfterBurn', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
     const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);
 
     await tokenContract.methods.repartition(2).send();
@@ -95,11 +87,11 @@
   itEth('ownerOf for partial ownership', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Partial-OwnerOf', '6', '6');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Partial-OwnerOf', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
     const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);
 
     await tokenContract.methods.repartition(2).send();
@@ -124,30 +116,25 @@
   itEth('Can perform mint()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Minty', '6', '6');
+    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'Minty', '6', '6', '');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
-    
-    const nextTokenId = await contract.methods.nextTokenId().call();
-    expect(nextTokenId).to.be.equal('1');
-    const result = await contract.methods.mintWithTokenURI(
-      receiver,
-      nextTokenId,
-      'Test URI',
-    ).send();
 
+    const result = await contract.methods.mintWithTokenURI(receiver, 'Test URI').send();
+
     const event = result.events.Transfer;
     expect(event.address).to.equal(collectionAddress);
     expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');
     expect(event.returnValues.to).to.equal(receiver);
-    expect(event.returnValues.tokenId).to.equal(nextTokenId);
+    const tokenId = event.returnValues.tokenId;
+    expect(tokenId).to.be.equal('1');
 
-    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI');
+    expect(await contract.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');
   });
 
   itEth('Can perform mintBulk()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'MintBulky', '6', '6');
+    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'MintBulky', '6', '6', '');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
 
     {
@@ -179,11 +166,11 @@
 
   itEth('Can perform burn()', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Burny', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Burny', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
     {
       const result = await contract.methods.burn(tokenId).send();
       const event = result.events.Transfer;
@@ -197,12 +184,13 @@
   itEth('Can perform transferFrom()', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'TransferFromy', '6', '6');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'TransferFromy', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
+
     const tokenAddress = helper.ethAddress.fromTokenId(collectionId, tokenId);
-    await contract.methods.mint(caller, tokenId).send();
 
     const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, caller);
     await tokenContract.methods.repartition(15).send();
@@ -241,15 +229,15 @@
   itEth('Can perform transfer()', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Transferry', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     {
       const result = await contract.methods.transfer(receiver, tokenId).send();
-      
+
       const event = result.events.Transfer;
       expect(event.address).to.equal(collectionAddress);
       expect(event.returnValues.from).to.equal(caller);
@@ -271,11 +259,11 @@
   itEth('transfer event on transfer from partial ownership to full ownership', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Transferry-Partial-to-Full', '6', '6');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry-Partial-to-Full', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);
 
@@ -300,11 +288,11 @@
   itEth('transfer event on transfer from full ownership to partial ownership', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Transferry-Full-to-Partial', '6', '6');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry-Full-to-Partial', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);
 
@@ -340,11 +328,11 @@
   itEth('transferFrom() call fee is less than 0.2UNQ', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Feeful-Transfer-From', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Feeful-Transfer-From', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     const cost = await helper.eth.recordCallFee(caller, () => contract.methods.transferFrom(caller, receiver, tokenId).send());
     expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));
@@ -354,11 +342,11 @@
   itEth('transfer() call fee is less than 0.2UNQ', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Feeful-Transfer', '6', '6');
+    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Feeful-Transfer', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
 
     const cost = await helper.eth.recordCallFee(caller, () => contract.methods.transfer(receiver, tokenId).send());
     expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));
@@ -381,8 +369,24 @@
 
   itEth('Returns collection name', async ({helper}) => {
     const caller = helper.eth.createAccount();
-    const collection = await helper.rft.mintCollection(alice, {name: 'Leviathan', tokenPrefix: '11'});
-    
+    const tokenPropertyPermissions = [{
+      key: 'URI',
+      permission: {
+        mutable: true,
+        collectionAdmin: true,
+        tokenOwner: false,
+      },
+    }];
+    const collection = await helper.rft.mintCollection(
+      alice,
+      {
+        name: 'Leviathan',
+        tokenPrefix: '11',
+        properties: [{key: 'ERC721Metadata', value: '1'}],
+        tokenPropertyPermissions,
+      },
+    );
+
     const contract = helper.ethNativeContract.collectionById(collection.collectionId, 'rft', caller);
     const name = await contract.methods.name().call();
     expect(name).to.equal('Leviathan');
@@ -390,8 +394,25 @@
 
   itEth('Returns symbol name', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const {collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Leviathan', '', '12');
-    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
+    const tokenPropertyPermissions = [{
+      key: 'URI',
+      permission: {
+        mutable: true,
+        collectionAdmin: true,
+        tokenOwner: false,
+      },
+    }];
+    const {collectionId} = await helper.rft.mintCollection(
+      alice,
+      {
+        name: 'Leviathan',
+        tokenPrefix: '12',
+        properties: [{key: 'ERC721Metadata', value: '1'}],
+        tokenPropertyPermissions,
+      },
+    );
+
+    const contract = helper.ethNativeContract.collectionById(collectionId, 'rft', caller);
     const symbol = await contract.methods.symbol().call();
     expect(symbol).to.equal('12');
   });
modifiedtests/src/eth/reFungibleAbi.jsondiffbeforeafterboth
--- a/tests/src/eth/reFungibleAbi.json
+++ b/tests/src/eth/reFungibleAbi.json
@@ -146,6 +146,15 @@
     "type": "function"
   },
   {
+    "inputs": [
+      { "internalType": "address", "name": "newOwner", "type": "address" }
+    ],
+    "name": "changeCollectionOwner",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [],
     "name": "collectionOwner",
     "outputs": [
@@ -260,12 +269,9 @@
     "type": "function"
   },
   {
-    "inputs": [
-      { "internalType": "address", "name": "to", "type": "address" },
-      { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
-    ],
+    "inputs": [{ "internalType": "address", "name": "to", "type": "address" }],
     "name": "mint",
-    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
     "stateMutability": "nonpayable",
     "type": "function"
   },
@@ -287,7 +293,7 @@
           { "internalType": "uint256", "name": "field_0", "type": "uint256" },
           { "internalType": "string", "name": "field_1", "type": "string" }
         ],
-        "internalType": "struct Tuple8[]",
+        "internalType": "struct Tuple6[]",
         "name": "tokens",
         "type": "tuple[]"
       }
@@ -300,11 +306,10 @@
   {
     "inputs": [
       { "internalType": "address", "name": "to", "type": "address" },
-      { "internalType": "uint256", "name": "tokenId", "type": "uint256" },
       { "internalType": "string", "name": "tokenUri", "type": "string" }
     ],
     "name": "mintWithTokenURI",
-    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
     "stateMutability": "nonpayable",
     "type": "function"
   },
@@ -476,15 +481,6 @@
       { "internalType": "address", "name": "sponsor", "type": "address" }
     ],
     "name": "setCollectionSponsor",
-    "outputs": [],
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      { "internalType": "address", "name": "newOwner", "type": "address" }
-    ],
-    "name": "setOwner",
     "outputs": [],
     "stateMutability": "nonpayable",
     "type": "function"
modifiedtests/src/eth/reFungibleToken.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -76,34 +76,28 @@
     });
   });
 
-  async function setup(helper: EthUniqueHelper, tokenPrefix: string, propertyKey?: string, propertyValue?: string): Promise<{contract: Contract, nextTokenId: string}> {
+  async function setup(helper: EthUniqueHelper, baseUri: string, propertyKey?: string, propertyValue?: string): Promise<{contract: Contract, nextTokenId: string}> {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = helper.eth.createAccount();
 
-    const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
-    let result = await collectionHelper.methods.createERC721MetadataCompatibleCollection('Mint collection', 'a', 'b', tokenPrefix).send({value: Number(2n * helper.balance.getOneTokenNominal())});
-    const collectionAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
+    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'Mint collection', 'a', 'b', baseUri);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
-    
-    const nextTokenId = await contract.methods.nextTokenId().call();
-    expect(nextTokenId).to.be.equal('1');
-    result = await contract.methods.mint(
-      receiver,
-      nextTokenId,
-    ).send();
 
-    if (propertyKey && propertyValue) {
-      // Set URL or suffix
-      await contract.methods.setProperty(nextTokenId, propertyKey, Buffer.from(propertyValue)).send();
-    }
+    const result = await contract.methods.mint(receiver).send();
 
     const event = result.events.Transfer;
+    const tokenId = event.returnValues.tokenId;
+    expect(tokenId).to.be.equal('1');
     expect(event.address).to.be.equal(collectionAddress);
     expect(event.returnValues.from).to.be.equal('0x0000000000000000000000000000000000000000');
     expect(event.returnValues.to).to.be.equal(receiver);
-    expect(event.returnValues.tokenId).to.be.equal(nextTokenId);
 
-    return {contract, nextTokenId};
+    if (propertyKey && propertyValue) {
+      // Set URL or suffix
+      await contract.methods.setProperty(tokenId, propertyKey, Buffer.from(propertyValue)).send();
+    }
+
+    return {contract, nextTokenId: tokenId};
   }
 
   itEth('Empty tokenURI', async ({helper}) => {
@@ -112,18 +106,18 @@
   });
 
   itEth('TokenURI from url', async ({helper}) => {
-    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'url', 'Token URI');
+    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'URI', 'Token URI');
     expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Token URI');
   });
 
-  itEth('TokenURI from baseURI + tokenId', async ({helper}) => {
+  itEth('TokenURI from baseURI', async ({helper}) => {
     const {contract, nextTokenId} = await setup(helper, 'BaseURI_');
-    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + nextTokenId);
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_');
   });
 
   itEth('TokenURI from baseURI + suffix', async ({helper}) => {
     const suffix = '/some/suffix';
-    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'suffix', suffix);
+    const {contract, nextTokenId} = await setup(helper, 'BaseURI_', 'URISuffix', suffix);
     expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + suffix);
   });
 });
@@ -294,11 +288,11 @@
   itEth('Receiving Transfer event on burning into full ownership', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
     const receiver = await helper.eth.createAccountWithBalance(donor);
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(caller, 'Devastation', '6', '6');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Devastation', '6', '6');
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
 
-    const tokenId = await contract.methods.nextTokenId().call();
-    await contract.methods.mint(caller, tokenId).send();
+    const result = await contract.methods.mint(caller).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
     const tokenAddress = helper.ethAddress.fromTokenId(collectionId, tokenId);
     const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, caller);
 
@@ -484,11 +478,12 @@
   itEth('Default parent token address and id', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
 
-    const {collectionId, collectionAddress} = await helper.eth.createRefungibleCollection(owner, 'Sands', '', 'GRAIN');
+    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(owner, 'Sands', '', 'GRAIN');
     const collectionContract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
-    
-    const tokenId = await collectionContract.methods.nextTokenId().call();
-    await collectionContract.methods.mint(owner, tokenId).send();
+
+    const result = await collectionContract.methods.mint(owner).send();
+    const tokenId = result.events.Transfer.returnValues.tokenId;
+
     const tokenAddress = helper.ethAddress.fromTokenId(collectionId, tokenId);
     const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, owner);
 
modifiedtests/src/eth/util/playgrounds/unique.dev.tsdiffbeforeafterboth
--- a/tests/src/eth/util/playgrounds/unique.dev.ts
+++ b/tests/src/eth/util/playgrounds/unique.dev.ts
@@ -43,12 +43,12 @@
     if(!imports) return function(path: string) {
       return {error: `File not found: ${path}`};
     };
-  
+
     const knownImports = {} as {[key: string]: string};
     for(const imp of imports) {
       knownImports[imp.solPath] = (await readFile(imp.fsPath)).toString();
     }
-  
+
     return function(path: string) {
       if(path in knownImports) return {contents: knownImports[path]};
       return {error: `File not found: ${path}`};
@@ -71,7 +71,7 @@
         },
       },
     }), {import: await this.findImports(imports)})).contracts[`${name}.sol`][name];
-  
+
     return {
       abi: out.abi,
       object: '0x' + out.evm.bytecode.object,
@@ -94,7 +94,7 @@
   }
 
 }
-  
+
 class NativeContractGroup extends EthGroupBase {
 
   contractHelpers(caller: string): Contract {
@@ -145,14 +145,14 @@
   async createAccountWithBalance(donor: IKeyringPair, amount=100n) {
     const account = this.createAccount();
     await this.transferBalanceFromSubstrate(donor, account, amount);
-  
+
     return account;
   }
 
   async transferBalanceFromSubstrate(donor: IKeyringPair, recepient: string, amount=100n, inTokens=true) {
     return await this.helper.balance.transferToSubstrate(donor, evmToAddress(recepient), amount * (inTokens ? this.helper.balance.getOneTokenNominal() : 1n));
   }
-  
+
   async getCollectionCreationFee(signer: string) {
     const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);
     return await collectionHelper.methods.collectionCreationFee().call();
@@ -174,22 +174,32 @@
     return await this.helper.callRpc('api.rpc.eth.call', [{from: signer, to: contractAddress, data: abi}]);
   }
 
-  async createNonfungibleCollection(signer: string, name: string, description: string, tokenPrefix: string): Promise<{collectionId: number, collectionAddress: string}> {
+  async createNFTCollection(signer: string, name: string, description: string, tokenPrefix: string): Promise<{collectionId: number, collectionAddress: string}> {
     const collectionCreationPrice = this.helper.balance.getCollectionCreationPrice();
     const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);
-        
-    const result = await collectionHelper.methods.createNonfungibleCollection(name, description, tokenPrefix).send({value: Number(collectionCreationPrice)});
 
+    const result = await collectionHelper.methods.createNFTCollection(name, description, tokenPrefix).send({value: Number(collectionCreationPrice)});
+
     const collectionAddress = this.helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
     const collectionId = this.helper.ethAddress.extractCollectionId(collectionAddress);
 
     return {collectionId, collectionAddress};
   }
 
-  async createRefungibleCollection(signer: string, name: string, description: string, tokenPrefix: string): Promise<{collectionId: number, collectionAddress: string}> {
+  async createERC721MetadataCompatibleNFTCollection(signer: string, name: string, description: string, tokenPrefix: string, baseUri: string): Promise<{collectionId: number, collectionAddress: string}> {
+    const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);
+
+    const {collectionId, collectionAddress} = await this.createNFTCollection(signer, name, description, tokenPrefix)
+
+    await collectionHelper.methods.makeCollectionERC721MetadataCompatible(collectionAddress, baseUri).send();
+
+    return {collectionId, collectionAddress};
+  }
+
+  async createRFTCollection(signer: string, name: string, description: string, tokenPrefix: string): Promise<{collectionId: number, collectionAddress: string}> {
     const collectionCreationPrice = this.helper.balance.getCollectionCreationPrice();
     const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);
-        
+
     const result = await collectionHelper.methods.createRFTCollection(name, description, tokenPrefix).send({value: Number(collectionCreationPrice)});
 
     const collectionAddress = this.helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
@@ -198,6 +208,16 @@
     return {collectionId, collectionAddress};
   }
 
+  async createERC721MetadataCompatibleRFTCollection(signer: string, name: string, description: string, tokenPrefix: string, baseUri: string): Promise<{collectionId: number, collectionAddress: string}> {
+    const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);
+
+    const {collectionId, collectionAddress} = await this.createRFTCollection(signer, name, description, tokenPrefix)
+
+    await collectionHelper.methods.makeCollectionERC721MetadataCompatible(collectionAddress, baseUri).send();
+
+    return {collectionId, collectionAddress};
+  }
+
   async deployCollectorContract(signer: string): Promise<Contract> {
     return await this.helper.ethContract.deployByCode(signer, 'Collector', `
     // SPDX-License-Identifier: UNLICENSED
@@ -288,7 +308,7 @@
     };
     return await this.helper.arrange.calculcateFee(address, wrappedCode);
   }
-}  
+}
 
 class EthAddressGroup extends EthGroupBase {
   extractCollectionId(address: string): number {
@@ -319,8 +339,8 @@
   normalizeAddress(address: string): string {
     return '0x' + address.substring(address.length - 40);
   }
-}  
- 
+}
+
 export type EthUniqueHelperConstructor = new (...args: any[]) => EthUniqueHelper;
 
 export class EthUniqueHelper extends DevUniqueHelper {
@@ -373,4 +393,3 @@
     return newHelper;
   }
 }
-  
\ No newline at end of file
modifiedtests/src/util/playgrounds/unique.tsdiffbeforeafterboth
--- a/tests/src/util/playgrounds/unique.ts
+++ b/tests/src/util/playgrounds/unique.ts
@@ -1026,6 +1026,10 @@
     return (await this.helper.callRpc('api.rpc.unique.collectionProperties', [collectionId, propertyKeys])).toHuman();
   }
 
+  async getCollectionOptions(collectionId: number) {
+    return (await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId])).toHuman();
+  }
+
   /**
    * Deletes onchain properties from the collection.
    *
@@ -2839,6 +2843,10 @@
     return await this.helper.collection.getTokenNextSponsored(this.collectionId, tokenId, addressObj);
   }
 
+  async getOptions() {
+    return await this.helper.collection.getCollectionOptions(this.collectionId);
+  }
+
   async setSponsor(signer: TSigner, sponsorAddress: TSubstrateAccount) {
     return await this.helper.collection.setSponsor(signer, this.collectionId, sponsorAddress);
   }