git.delta.rocks / unique-network / refs/commits / 4e01cb3cfaf7

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//! # Nonfungible Pallet EVM API18//!19//! Provides ERC-721 standart support implementation and EVM API for unique extensions for Nonfungible Pallet.20//! Method implementations are mostly doing parameter conversion and calling Nonfungible Pallet methods.2122extern crate alloc;23use core::{24	char::{REPLACEMENT_CHARACTER, decode_utf16},25	convert::TryInto,26};27use evm_coder::{ToLog, execution::*, generate_stubgen, solidity, solidity_interface, types::*, weight};28use frame_support::BoundedVec;29use up_data_structs::{30	TokenId, PropertyPermission, PropertyKeyPermission, Property, CollectionId, PropertyKey,31	CollectionPropertiesVec,32};33use pallet_evm_coder_substrate::dispatch_to_evm;34use sp_std::vec::Vec;35use pallet_common::{36	erc::{37		CommonEvmHandler, PrecompileResult, CollectionCall,38		static_property::{key, value as property_value},39	},40	CollectionHandle, CollectionPropertyPermissions,41};42use pallet_evm::{account::CrossAccountId, PrecompileHandle};43use pallet_evm_coder_substrate::call;44use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};45use alloc::string::ToString;4647use crate::{48	AccountBalance, Config, CreateItemData, NonfungibleHandle, Pallet, TokenData, TokensMinted,49	SelfWeightOf, weights::WeightInfo, TokenProperties,50};5152/// @title A contract that allows to set and delete token properties and change token property permissions.53#[solidity_interface(name = TokenProperties)]54impl<T: Config> NonfungibleHandle<T> {55	/// @notice Set permissions for token property.56	/// @dev Throws error if `msg.sender` is not admin or owner of the collection.57	/// @param key Property key.58	/// @param isMutable Permission to mutate property.59	/// @param collectionAdmin Permission to mutate property by collection admin if property is mutable.60	/// @param tokenOwner Permission to mutate property by token owner if property is mutable.61	fn set_token_property_permission(62		&mut self,63		caller: caller,64		key: string,65		is_mutable: bool,66		collection_admin: bool,67		token_owner: bool,68	) -> Result<()> {69		let caller = T::CrossAccountId::from_eth(caller);70		<Pallet<T>>::set_property_permission(71			self,72			&caller,73			PropertyKeyPermission {74				key: <Vec<u8>>::from(key)75					.try_into()76					.map_err(|_| "too long key")?,77				permission: PropertyPermission {78					mutable: is_mutable,79					collection_admin,80					token_owner,81				},82			},83		)84		.map_err(dispatch_to_evm::<T>)85	}8687	/// @notice Set token property value.88	/// @dev Throws error if `msg.sender` has no permission to edit the property.89	/// @param tokenId ID of the token.90	/// @param key Property key.91	/// @param value Property value.92	fn set_property(93		&mut self,94		caller: caller,95		token_id: uint256,96		key: string,97		value: bytes,98	) -> Result<()> {99		let caller = T::CrossAccountId::from_eth(caller);100		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;101		let key = <Vec<u8>>::from(key)102			.try_into()103			.map_err(|_| "key too long")?;104		let value = value.try_into().map_err(|_| "value too long")?;105106		let nesting_budget = self107			.recorder108			.weight_calls_budget(<StructureWeight<T>>::find_parent());109110		<Pallet<T>>::set_token_property(111			self,112			&caller,113			TokenId(token_id),114			Property { key, value },115			&nesting_budget,116		)117		.map_err(dispatch_to_evm::<T>)118	}119120	/// @notice Delete token property value.121	/// @dev Throws error if `msg.sender` has no permission to edit the property.122	/// @param tokenId ID of the token.123	/// @param key Property key.124	fn delete_property(&mut self, token_id: uint256, caller: caller, key: string) -> Result<()> {125		let caller = T::CrossAccountId::from_eth(caller);126		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;127		let key = <Vec<u8>>::from(key)128			.try_into()129			.map_err(|_| "key too long")?;130131		let nesting_budget = self132			.recorder133			.weight_calls_budget(<StructureWeight<T>>::find_parent());134135		<Pallet<T>>::delete_token_property(self, &caller, TokenId(token_id), key, &nesting_budget)136			.map_err(dispatch_to_evm::<T>)137	}138139	/// @notice Get token property value.140	/// @dev Throws error if key not found141	/// @param tokenId ID of the token.142	/// @param key Property key.143	/// @return Property value bytes144	fn property(&self, token_id: uint256, key: string) -> Result<bytes> {145		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;146		let key = <Vec<u8>>::from(key)147			.try_into()148			.map_err(|_| "key too long")?;149150		let props = <TokenProperties<T>>::get((self.id, token_id));151		let prop = props.get(&key).ok_or("key not found")?;152153		Ok(prop.to_vec())154	}155}156157#[derive(ToLog)]158pub enum ERC721Events {159	/// @dev This emits when ownership of any NFT changes by any mechanism.160	///  This event emits when NFTs are created (`from` == 0) and destroyed161	///  (`to` == 0). Exception: during contract creation, any number of NFTs162	///  may be created and assigned without emitting Transfer. At the time of163	///  any transfer, the approved address for that NFT (if any) is reset to none.164	Transfer {165		#[indexed]166		from: address,167		#[indexed]168		to: address,169		#[indexed]170		token_id: uint256,171	},172	/// @dev This emits when the approved address for an NFT is changed or173	///  reaffirmed. The zero address indicates there is no approved address.174	///  When a Transfer event emits, this also indicates that the approved175	///  address for that NFT (if any) is reset to none.176	Approval {177		#[indexed]178		owner: address,179		#[indexed]180		approved: address,181		#[indexed]182		token_id: uint256,183	},184	/// @dev This emits when an operator is enabled or disabled for an owner.185	///  The operator can manage all NFTs of the owner.186	#[allow(dead_code)]187	ApprovalForAll {188		#[indexed]189		owner: address,190		#[indexed]191		operator: address,192		approved: bool,193	},194}195196#[derive(ToLog)]197pub enum ERC721MintableEvents {198	#[allow(dead_code)]199	MintingFinished {},200}201202/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension203/// @dev See https://eips.ethereum.org/EIPS/eip-721204#[solidity_interface(name = ERC721Metadata, expect_selector = 0x5b5e139f)]205impl<T: Config> NonfungibleHandle<T> {206	/// @notice A descriptive name for a collection of NFTs in this contract207	fn name(&self) -> Result<string> {208		Ok(decode_utf16(self.name.iter().copied())209			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))210			.collect::<string>())211	}212213	/// @notice An abbreviated name for NFTs in this contract214	fn symbol(&self) -> Result<string> {215		Ok(string::from_utf8_lossy(&self.token_prefix).into())216	}217218	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.219	///220	/// @dev If the token has a `url` property and it is not empty, it is returned.221	///  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`.222	///  If the collection property `baseURI` is empty or absent, return "" (empty string)223	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix224	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).225	///226	/// @return token's const_metadata227	#[solidity(rename_selector = "tokenURI")]228	fn token_uri(&self, token_id: uint256) -> Result<string> {229		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;230231		if let Ok(url) = get_token_property(self, token_id_u32, &key::url()) {232			if !url.is_empty() {233				return Ok(url);234			}235		} else if !is_erc721_metadata_compatible::<T>(self.id) {236			return Err("tokenURI not set".into());237		}238239		if let Some(base_uri) =240			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())241		{242			if !base_uri.is_empty() {243				let base_uri = string::from_utf8(base_uri.into_inner()).map_err(|e| {244					Error::Revert(alloc::format!(245						"Can not convert value \"baseURI\" to string with error \"{}\"",246						e247					))248				})?;249				if let Ok(suffix) = get_token_property(self, token_id_u32, &key::suffix()) {250					if !suffix.is_empty() {251						return Ok(base_uri + suffix.as_str());252					}253				}254255				return Ok(base_uri + token_id.to_string().as_str());256			}257		}258259		Ok("".into())260	}261}262263/// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension264/// @dev See https://eips.ethereum.org/EIPS/eip-721265#[solidity_interface(name = ERC721Enumerable, expect_selector = 0x780e9d63)]266impl<T: Config> NonfungibleHandle<T> {267	/// @notice Enumerate valid NFTs268	/// @param index A counter less than `totalSupply()`269	/// @return The token identifier for the `index`th NFT,270	///  (sort order not specified)271	fn token_by_index(&self, index: uint256) -> Result<uint256> {272		Ok(index)273	}274275	/// @dev Not implemented276	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {277		// TODO: Not implemetable278		Err("not implemented".into())279	}280281	/// @notice Count NFTs tracked by this contract282	/// @return A count of valid NFTs tracked by this contract, where each one of283	///  them has an assigned and queryable owner not equal to the zero address284	fn total_supply(&self) -> Result<uint256> {285		self.consume_store_reads(1)?;286		Ok(<Pallet<T>>::total_supply(self).into())287	}288}289290/// @title ERC-721 Non-Fungible Token Standard291/// @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md292#[solidity_interface(name = ERC721, events(ERC721Events), expect_selector = 0x80ac58cd)]293impl<T: Config> NonfungibleHandle<T> {294	/// @notice Count all NFTs assigned to an owner295	/// @dev NFTs assigned to the zero address are considered invalid, and this296	///  function throws for queries about the zero address.297	/// @param owner An address for whom to query the balance298	/// @return The number of NFTs owned by `owner`, possibly zero299	fn balance_of(&self, owner: address) -> Result<uint256> {300		self.consume_store_reads(1)?;301		let owner = T::CrossAccountId::from_eth(owner);302		let balance = <AccountBalance<T>>::get((self.id, owner));303		Ok(balance.into())304	}305	/// @notice Find the owner of an NFT306	/// @dev NFTs assigned to zero address are considered invalid, and queries307	///  about them do throw.308	/// @param tokenId The identifier for an NFT309	/// @return The address of the owner of the NFT310	fn owner_of(&self, token_id: uint256) -> Result<address> {311		self.consume_store_reads(1)?;312		let token: TokenId = token_id.try_into()?;313		Ok(*<TokenData<T>>::get((self.id, token))314			.ok_or("token not found")?315			.owner316			.as_eth())317	}318	/// @dev Not implemented319	#[solidity(rename_selector = "safeTransferFrom")]320	fn safe_transfer_from_with_data(321		&mut self,322		_from: address,323		_to: address,324		_token_id: uint256,325		_data: bytes,326	) -> Result<void> {327		// TODO: Not implemetable328		Err("not implemented".into())329	}330	/// @dev Not implemented331	fn safe_transfer_from(332		&mut self,333		_from: address,334		_to: address,335		_token_id: uint256,336	) -> Result<void> {337		// TODO: Not implemetable338		Err("not implemented".into())339	}340341	/// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE342	///  TO CONFIRM THAT `to` IS CAPABLE OF RECEIVING NFTS OR ELSE343	///  THEY MAY BE PERMANENTLY LOST344	/// @dev Throws unless `msg.sender` is the current owner or an authorized345	///  operator for this NFT. Throws if `from` is not the current owner. Throws346	///  if `to` is the zero address. Throws if `tokenId` is not a valid NFT.347	/// @param from The current owner of the NFT348	/// @param to The new owner349	/// @param tokenId The NFT to transfer350	#[weight(<SelfWeightOf<T>>::transfer_from())]351	fn transfer_from(352		&mut self,353		caller: caller,354		from: address,355		to: address,356		token_id: uint256,357	) -> Result<void> {358		let caller = T::CrossAccountId::from_eth(caller);359		let from = T::CrossAccountId::from_eth(from);360		let to = T::CrossAccountId::from_eth(to);361		let token = token_id.try_into()?;362		let budget = self363			.recorder364			.weight_calls_budget(<StructureWeight<T>>::find_parent());365366		<Pallet<T>>::transfer_from(self, &caller, &from, &to, token, &budget)367			.map_err(dispatch_to_evm::<T>)?;368		Ok(())369	}370371	/// @notice Set or reaffirm the approved address for an NFT372	/// @dev The zero address indicates there is no approved address.373	/// @dev Throws unless `msg.sender` is the current NFT owner, or an authorized374	///  operator of the current owner.375	/// @param approved The new approved NFT controller376	/// @param tokenId The NFT to approve377	#[weight(<SelfWeightOf<T>>::approve())]378	fn approve(&mut self, caller: caller, approved: address, token_id: uint256) -> Result<void> {379		let caller = T::CrossAccountId::from_eth(caller);380		let approved = T::CrossAccountId::from_eth(approved);381		let token = token_id.try_into()?;382383		<Pallet<T>>::set_allowance(self, &caller, token, Some(&approved))384			.map_err(dispatch_to_evm::<T>)?;385		Ok(())386	}387388	/// @dev Not implemented389	fn set_approval_for_all(390		&mut self,391		_caller: caller,392		_operator: address,393		_approved: bool,394	) -> Result<void> {395		// TODO: Not implemetable396		Err("not implemented".into())397	}398399	/// @dev Not implemented400	fn get_approved(&self, _token_id: uint256) -> Result<address> {401		// TODO: Not implemetable402		Err("not implemented".into())403	}404405	/// @dev Not implemented406	fn is_approved_for_all(&self, _owner: address, _operator: address) -> Result<address> {407		// TODO: Not implemetable408		Err("not implemented".into())409	}410}411412/// @title ERC721 Token that can be irreversibly burned (destroyed).413#[solidity_interface(name = ERC721Burnable)]414impl<T: Config> NonfungibleHandle<T> {415	/// @notice Burns a specific ERC721 token.416	/// @dev Throws unless `msg.sender` is the current NFT owner, or an authorized417	///  operator of the current owner.418	/// @param tokenId The NFT to approve419	#[weight(<SelfWeightOf<T>>::burn_item())]420	fn burn(&mut self, caller: caller, token_id: uint256) -> Result<void> {421		let caller = T::CrossAccountId::from_eth(caller);422		let token = token_id.try_into()?;423424		<Pallet<T>>::burn(self, &caller, token).map_err(dispatch_to_evm::<T>)?;425		Ok(())426	}427}428429/// @title ERC721 minting logic.430#[solidity_interface(name = ERC721Mintable, events(ERC721MintableEvents))]431impl<T: Config> NonfungibleHandle<T> {432	fn minting_finished(&self) -> Result<bool> {433		Ok(false)434	}435436	/// @notice Function to mint token.437	/// @dev `tokenId` should be obtained with `nextTokenId` method,438	///  unlike standard, you can't specify it manually439	/// @param to The new owner440	/// @param tokenId ID of the minted NFT441	#[weight(<SelfWeightOf<T>>::create_item())]442	fn mint(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {443		let caller = T::CrossAccountId::from_eth(caller);444		let to = T::CrossAccountId::from_eth(to);445		let token_id: u32 = token_id.try_into()?;446		let budget = self447			.recorder448			.weight_calls_budget(<StructureWeight<T>>::find_parent());449450		if <TokensMinted<T>>::get(self.id)451			.checked_add(1)452			.ok_or("item id overflow")?453			!= token_id454		{455			return Err("item id should be next".into());456		}457458		<Pallet<T>>::create_item(459			self,460			&caller,461			CreateItemData::<T> {462				properties: BoundedVec::default(),463				owner: to,464			},465			&budget,466		)467		.map_err(dispatch_to_evm::<T>)?;468469		Ok(true)470	}471472	/// @notice Function to mint token with the given tokenUri.473	/// @dev `tokenId` should be obtained with `nextTokenId` method,474	///  unlike standard, you can't specify it manually475	/// @param to The new owner476	/// @param tokenId ID of the minted NFT477	/// @param tokenUri Token URI that would be stored in the NFT properties478	#[solidity(rename_selector = "mintWithTokenURI")]479	#[weight(<SelfWeightOf<T>>::create_item())]480	fn mint_with_token_uri(481		&mut self,482		caller: caller,483		to: address,484		token_id: uint256,485		token_uri: string,486	) -> Result<bool> {487		let key = key::url();488		let permission = get_token_permission::<T>(self.id, &key)?;489		if !permission.collection_admin {490			return Err("Operation is not allowed".into());491		}492493		let caller = T::CrossAccountId::from_eth(caller);494		let to = T::CrossAccountId::from_eth(to);495		let token_id: u32 = token_id.try_into().map_err(|_| "amount overflow")?;496		let budget = self497			.recorder498			.weight_calls_budget(<StructureWeight<T>>::find_parent());499500		if <TokensMinted<T>>::get(self.id)501			.checked_add(1)502			.ok_or("item id overflow")?503			!= token_id504		{505			return Err("item id should be next".into());506		}507508		let mut properties = CollectionPropertiesVec::default();509		properties510			.try_push(Property {511				key,512				value: token_uri513					.into_bytes()514					.try_into()515					.map_err(|_| "token uri is too long")?,516			})517			.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;518519		<Pallet<T>>::create_item(520			self,521			&caller,522			CreateItemData::<T> {523				properties,524				owner: to,525			},526			&budget,527		)528		.map_err(dispatch_to_evm::<T>)?;529		Ok(true)530	}531532	/// @dev Not implemented533	fn finish_minting(&mut self, _caller: caller) -> Result<bool> {534		Err("not implementable".into())535	}536}537538fn get_token_property<T: Config>(539	collection: &CollectionHandle<T>,540	token_id: u32,541	key: &up_data_structs::PropertyKey,542) -> Result<string> {543	collection.consume_store_reads(1)?;544	let properties = <TokenProperties<T>>::try_get((collection.id, token_id))545		.map_err(|_| Error::Revert("Token properties not found".into()))?;546	if let Some(property) = properties.get(key) {547		return Ok(string::from_utf8_lossy(property).into());548	}549550	Err("Property tokenURI not found".into())551}552553fn is_erc721_metadata_compatible<T: Config>(collection_id: CollectionId) -> bool {554	if let Some(shema_name) =555		pallet_common::Pallet::<T>::get_collection_property(collection_id, &key::schema_name())556	{557		let shema_name = shema_name.into_inner();558		shema_name == property_value::ERC721_METADATA559	} else {560		false561	}562}563564fn get_token_permission<T: Config>(565	collection_id: CollectionId,566	key: &PropertyKey,567) -> Result<PropertyPermission> {568	let token_property_permissions = CollectionPropertyPermissions::<T>::try_get(collection_id)569		.map_err(|_| Error::Revert("No permissions for collection".into()))?;570	let a = token_property_permissions571		.get(key)572		.map(Clone::clone)573		.ok_or_else(|| {574			let key = string::from_utf8(key.clone().into_inner()).unwrap_or_default();575			Error::Revert(alloc::format!("No permission for key {}", key))576		})?;577	Ok(a)578}579580fn has_token_permission<T: Config>(collection_id: CollectionId, key: &PropertyKey) -> bool {581	if let Ok(token_property_permissions) =582		CollectionPropertyPermissions::<T>::try_get(collection_id)583	{584		return token_property_permissions.contains_key(key);585	}586587	false588}589590/// @title Unique extensions for ERC721.591#[solidity_interface(name = ERC721UniqueExtensions)]592impl<T: Config> NonfungibleHandle<T> {593	/// @notice Transfer ownership of an NFT594	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`595	///  is the zero address. Throws if `tokenId` is not a valid NFT.596	/// @param to The new owner597	/// @param tokenId The NFT to transfer598	#[weight(<SelfWeightOf<T>>::transfer())]599	fn transfer(&mut self, caller: caller, to: address, token_id: uint256) -> Result<void> {600		let caller = T::CrossAccountId::from_eth(caller);601		let to = T::CrossAccountId::from_eth(to);602		let token = token_id.try_into()?;603		let budget = self604			.recorder605			.weight_calls_budget(<StructureWeight<T>>::find_parent());606607		<Pallet<T>>::transfer(self, &caller, &to, token, &budget).map_err(dispatch_to_evm::<T>)?;608		Ok(())609	}610611	/// @notice Burns a specific ERC721 token.612	/// @dev Throws unless `msg.sender` is the current owner or an authorized613	///  operator for this NFT. Throws if `from` is not the current owner. Throws614	///  if `to` is the zero address. Throws if `tokenId` is not a valid NFT.615	/// @param from The current owner of the NFT616	/// @param tokenId The NFT to transfer617	#[weight(<SelfWeightOf<T>>::burn_from())]618	fn burn_from(&mut self, caller: caller, from: address, token_id: uint256) -> Result<void> {619		let caller = T::CrossAccountId::from_eth(caller);620		let from = T::CrossAccountId::from_eth(from);621		let token = token_id.try_into()?;622		let budget = self623			.recorder624			.weight_calls_budget(<StructureWeight<T>>::find_parent());625626		<Pallet<T>>::burn_from(self, &caller, &from, token, &budget)627			.map_err(dispatch_to_evm::<T>)?;628		Ok(())629	}630631	/// @notice Returns next free NFT ID.632	fn next_token_id(&self) -> Result<uint256> {633		self.consume_store_reads(1)?;634		Ok(<TokensMinted<T>>::get(self.id)635			.checked_add(1)636			.ok_or("item id overflow")?637			.into())638	}639640	/// @notice Function to mint multiple tokens.641	/// @dev `tokenIds` should be an array of consecutive numbers and first number642	///  should be obtained with `nextTokenId` method643	/// @param to The new owner644	/// @param tokenIds IDs of the minted NFTs645	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]646	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {647		let caller = T::CrossAccountId::from_eth(caller);648		let to = T::CrossAccountId::from_eth(to);649		let mut expected_index = <TokensMinted<T>>::get(self.id)650			.checked_add(1)651			.ok_or("item id overflow")?;652		let budget = self653			.recorder654			.weight_calls_budget(<StructureWeight<T>>::find_parent());655656		let total_tokens = token_ids.len();657		for id in token_ids.into_iter() {658			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;659			if id != expected_index {660				return Err("item id should be next".into());661			}662			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;663		}664		let data = (0..total_tokens)665			.map(|_| CreateItemData::<T> {666				properties: BoundedVec::default(),667				owner: to.clone(),668			})669			.collect();670671		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)672			.map_err(dispatch_to_evm::<T>)?;673		Ok(true)674	}675676	/// @notice Function to mint multiple tokens with the given tokenUris.677	/// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive678	///  numbers and first number should be obtained with `nextTokenId` method679	/// @param to The new owner680	/// @param tokens array of pairs of token ID and token URI for minted tokens681	#[solidity(rename_selector = "mintBulkWithTokenURI")]682	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32))]683	fn mint_bulk_with_token_uri(684		&mut self,685		caller: caller,686		to: address,687		tokens: Vec<(uint256, string)>,688	) -> Result<bool> {689		let key = key::url();690		let caller = T::CrossAccountId::from_eth(caller);691		let to = T::CrossAccountId::from_eth(to);692		let mut expected_index = <TokensMinted<T>>::get(self.id)693			.checked_add(1)694			.ok_or("item id overflow")?;695		let budget = self696			.recorder697			.weight_calls_budget(<StructureWeight<T>>::find_parent());698699		let mut data = Vec::with_capacity(tokens.len());700		for (id, token_uri) in tokens {701			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;702			if id != expected_index {703				return Err("item id should be next".into());704			}705			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;706707			let mut properties = CollectionPropertiesVec::default();708			properties709				.try_push(Property {710					key: key.clone(),711					value: token_uri712						.into_bytes()713						.try_into()714						.map_err(|_| "token uri is too long")?,715				})716				.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;717718			data.push(CreateItemData::<T> {719				properties,720				owner: to.clone(),721			});722		}723724		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)725			.map_err(dispatch_to_evm::<T>)?;726		Ok(true)727	}728}729730#[solidity_interface(731	name = UniqueNFT,732	is(733		ERC721,734		ERC721Metadata,735		ERC721Enumerable,736		ERC721UniqueExtensions,737		ERC721Mintable,738		ERC721Burnable,739		Collection(common_mut, CollectionHandle<T>),740		TokenProperties,741	)742)]743impl<T: Config> NonfungibleHandle<T> where T::AccountId: From<[u8; 32]> {}744745// Not a tests, but code generators746generate_stubgen!(gen_impl, UniqueNFTCall<()>, true);747generate_stubgen!(gen_iface, UniqueNFTCall<()>, false);748749impl<T: Config> CommonEvmHandler for NonfungibleHandle<T>750where751	T::AccountId: From<[u8; 32]>,752{753	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueNFT.raw");754755	fn call(self, handle: &mut impl PrecompileHandle) -> Option<PrecompileResult> {756		call::<T, UniqueNFTCall<T>, _, _>(handle, self)757	}758}