git.delta.rocks / unique-network / refs/commits / 0b47f7af660b

difftreelog

Merge branch 'UniqueNetwork:develop' into develop

Alex2022-08-02parents: #f46a437 #4247b84.patch.diff
in: master

4 files changed

modifiedprimitives/data-structs/src/bounded.rsdiffbeforeafterboth
--- a/primitives/data-structs/src/bounded.rs
+++ b/primitives/data-structs/src/bounded.rs
@@ -1,3 +1,21 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+//! This module contins implementations for support bounded structures ([`BoundedVec`], [`BoundedBTreeMap`], [`BoundedBTreeSet`]) in [`serde`].
+
 use core::fmt;
 use sp_std::collections::{btree_map::BTreeMap, btree_set::BTreeSet};
 use sp_std::vec::Vec;
@@ -7,7 +25,7 @@
 	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},
 };
 
-/// BoundedVec doesn't supports serde
+/// [`serde`] implementations for [`BoundedVec`].
 #[cfg(feature = "serde1")]
 pub mod vec_serde {
 	use core::convert::TryFrom;
@@ -39,6 +57,7 @@
 	}
 }
 
+/// Format [`BoundedVec`] for debug output.
 pub fn vec_debug<V, S>(v: &BoundedVec<V, S>, f: &mut fmt::Formatter) -> Result<(), fmt::Error>
 where
 	V: fmt::Debug,
@@ -49,6 +68,7 @@
 
 #[cfg(feature = "serde1")]
 #[allow(dead_code)]
+/// [`serde`] implementations for [`BoundedBTreeMap`].
 pub mod map_serde {
 	use core::convert::TryFrom;
 	use sp_std::collections::btree_map::BTreeMap;
@@ -84,6 +104,7 @@
 	}
 }
 
+/// Format [`BoundedBTreeMap`] for debug output.
 pub fn map_debug<K, V, S>(
 	v: &BoundedBTreeMap<K, V, S>,
 	f: &mut fmt::Formatter,
@@ -98,6 +119,7 @@
 
 #[cfg(feature = "serde1")]
 #[allow(dead_code)]
+/// [`serde`] implementations for [`BoundedBTreeSet`].
 pub mod set_serde {
 	use core::convert::TryFrom;
 	use sp_std::collections::btree_set::BTreeSet;
@@ -129,6 +151,7 @@
 	}
 }
 
+/// Format [`BoundedBTreeSet`] for debug output.
 pub fn set_debug<K, S>(v: &BoundedBTreeSet<K, S>, f: &mut fmt::Formatter) -> Result<(), fmt::Error>
 where
 	K: fmt::Debug + Ord,
modifiedprimitives/data-structs/src/lib.rsdiffbeforeafterboth
before · primitives/data-structs/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#![cfg_attr(not(feature = "std"), no_std)]1819use core::{20	convert::{TryFrom, TryInto},21	fmt,22};23use frame_support::{24	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},25	traits::Get,26	parameter_types,27};2829#[cfg(feature = "serde")]30use serde::{Serialize, Deserialize};3132use sp_core::U256;33use sp_runtime::{ArithmeticError, sp_std::prelude::Vec, Permill};34use codec::{Decode, Encode, EncodeLike, MaxEncodedLen};35use frame_support::{BoundedVec, traits::ConstU32};36use derivative::Derivative;37use scale_info::TypeInfo;3839// RMRK40use rmrk_traits::{41	CollectionInfo, NftInfo, ResourceInfo, PropertyInfo, BaseInfo, PartType, Theme, ThemeProperty,42	ResourceTypes, BasicResource, ComposableResource, SlotResource, EquippableList,43};44pub use rmrk_traits::{45	primitives::{46		CollectionId as RmrkCollectionId, NftId as RmrkNftId, BaseId as RmrkBaseId,47		SlotId as RmrkSlotId, PartId as RmrkPartId, ResourceId as RmrkResourceId,48	},49	NftChild as RmrkNftChild, AccountIdOrCollectionNftTuple as RmrkAccountIdOrCollectionNftTuple,50	FixedPart as RmrkFixedPart, SlotPart as RmrkSlotPart,51};5253mod bounded;54pub mod budget;55pub mod mapping;56mod migration;5758pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;59pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;60pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;6162pub const MAX_TOKEN_OWNERSHIP: u32 = if cfg!(not(feature = "limit-testing")) {63	100_00064} else {65	1066};67pub const COLLECTION_NUMBER_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {68	100_00069} else {70	1071};72pub const CUSTOM_DATA_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {73	204874} else {75	1076};77pub const COLLECTION_ADMINS_LIMIT: u32 = 5;78pub const COLLECTION_TOKEN_LIMIT: u32 = u32::MAX;79pub const ACCOUNT_TOKEN_OWNERSHIP_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {80	1_000_00081} else {82	1083};8485// Timeouts for item types in passed blocks86pub const NFT_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;87pub const FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;88pub const REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;8990pub const SPONSOR_APPROVE_TIMEOUT: u32 = 5;9192// Schema limits93pub const OFFCHAIN_SCHEMA_LIMIT: u32 = 8192;94pub const VARIABLE_ON_CHAIN_SCHEMA_LIMIT: u32 = 8192;95pub const CONST_ON_CHAIN_SCHEMA_LIMIT: u32 = 32768;9697pub const COLLECTION_FIELD_LIMIT: u32 = CONST_ON_CHAIN_SCHEMA_LIMIT;9899pub const MAX_COLLECTION_NAME_LENGTH: u32 = 64;100pub const MAX_COLLECTION_DESCRIPTION_LENGTH: u32 = 256;101pub const MAX_TOKEN_PREFIX_LENGTH: u32 = 16;102103pub const MAX_PROPERTY_KEY_LENGTH: u32 = 256;104pub const MAX_PROPERTY_VALUE_LENGTH: u32 = 32768;105pub const MAX_PROPERTIES_PER_ITEM: u32 = 64;106107pub const MAX_AUX_PROPERTY_VALUE_LENGTH: u32 = 2048;108109pub const MAX_COLLECTION_PROPERTIES_SIZE: u32 = 40960;110pub const MAX_TOKEN_PROPERTIES_SIZE: u32 = 32768;111112/// How much items can be created per single113/// create_many call114pub const MAX_ITEMS_PER_BATCH: u32 = 200;115116pub type CustomDataLimit = ConstU32<CUSTOM_DATA_LIMIT>;117118#[derive(119	Encode,120	Decode,121	PartialEq,122	Eq,123	PartialOrd,124	Ord,125	Clone,126	Copy,127	Debug,128	Default,129	TypeInfo,130	MaxEncodedLen,131)]132#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]133pub struct CollectionId(pub u32);134impl EncodeLike<u32> for CollectionId {}135impl EncodeLike<CollectionId> for u32 {}136137#[derive(138	Encode,139	Decode,140	PartialEq,141	Eq,142	PartialOrd,143	Ord,144	Clone,145	Copy,146	Debug,147	Default,148	TypeInfo,149	MaxEncodedLen,150)]151#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]152pub struct TokenId(pub u32);153impl EncodeLike<u32> for TokenId {}154impl EncodeLike<TokenId> for u32 {}155156impl TokenId {157	pub fn try_next(self) -> Result<TokenId, ArithmeticError> {158		self.0159			.checked_add(1)160			.ok_or(ArithmeticError::Overflow)161			.map(Self)162	}163}164165impl From<TokenId> for U256 {166	fn from(t: TokenId) -> Self {167		t.0.into()168	}169}170171impl TryFrom<U256> for TokenId {172	type Error = &'static str;173174	fn try_from(value: U256) -> Result<Self, Self::Error> {175		Ok(TokenId(value.try_into().map_err(|_| "too large token id")?))176	}177}178179#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]180#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]181pub struct TokenData<CrossAccountId> {182	pub properties: Vec<Property>,183	pub owner: Option<CrossAccountId>,184	pub pieces: u128,185}186187pub struct OverflowError;188impl From<OverflowError> for &'static str {189	fn from(_: OverflowError) -> Self {190		"overflow occured"191	}192}193194pub type DecimalPoints = u8;195196#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]197#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]198pub enum CollectionMode {199	NFT,200	Fungible(DecimalPoints),201	ReFungible,202}203204impl CollectionMode {205	pub fn id(&self) -> u8 {206		match self {207			CollectionMode::NFT => 1,208			CollectionMode::Fungible(_) => 2,209			CollectionMode::ReFungible => 3,210		}211	}212}213214pub trait SponsoringResolve<AccountId, Call> {215	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;216}217218#[derive(Encode, Decode, Eq, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]219#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]220pub enum AccessMode {221	Normal,222	AllowList,223}224impl Default for AccessMode {225	fn default() -> Self {226		Self::Normal227	}228}229230#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]231#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]232pub enum SchemaVersion {233	ImageURL,234	Unique,235}236impl Default for SchemaVersion {237	fn default() -> Self {238		Self::ImageURL239	}240}241242#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]243#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]244pub struct Ownership<AccountId> {245	pub owner: AccountId,246	pub fraction: u128,247}248249#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]250#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]251pub enum SponsorshipState<AccountId> {252	/// The fees are applied to the transaction sender253	Disabled,254	/// Pending confirmation from a sponsor-to-be255	Unconfirmed(AccountId),256	/// Transactions are sponsored by specified account257	Confirmed(AccountId),258}259260impl<AccountId> SponsorshipState<AccountId> {261	/// Get the acting sponsor account, if present262	pub fn sponsor(&self) -> Option<&AccountId> {263		match self {264			Self::Confirmed(sponsor) => Some(sponsor),265			_ => None,266		}267	}268269	/// Get the sponsor account currently pending confirmation, if present270	pub fn pending_sponsor(&self) -> Option<&AccountId> {271		match self {272			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),273			_ => None,274		}275	}276277	/// Is sponsorship set and acting278	pub fn confirmed(&self) -> bool {279		matches!(self, Self::Confirmed(_))280	}281}282283impl<T> Default for SponsorshipState<T> {284	fn default() -> Self {285		Self::Disabled286	}287}288289pub type CollectionName = BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>;290pub type CollectionDescription = BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>;291pub type CollectionTokenPrefix = BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>;292293/// Collection parameters, used in storage (see [`RpcCollection`] for the RPC version).294#[struct_versioning::versioned(version = 2, upper)]295#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]296pub struct Collection<AccountId> {297	pub owner: AccountId,298	pub mode: CollectionMode,299	#[version(..2)]300	pub access: AccessMode,301	pub name: CollectionName,302	pub description: CollectionDescription,303	pub token_prefix: CollectionTokenPrefix,304305	#[version(..2)]306	pub mint_mode: bool,307308	#[version(..2)]309	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,310311	#[version(..2)]312	pub schema_version: SchemaVersion,313	pub sponsorship: SponsorshipState<AccountId>,314315	pub limits: CollectionLimits,316317	#[version(2.., upper(Default::default()))]318	pub permissions: CollectionPermissions,319320	/// Marks that this collection is not "unique", and managed from external.321	#[version(2.., upper(false))]322	pub external_collection: bool,323324	#[version(..2)]325	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,326327	#[version(..2)]328	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,329330	#[version(..2)]331	pub meta_update_permission: MetaUpdatePermission,332}333334/// Collection parameters, used in RPC calls (see [`Collection`] for the storage version).335#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]336#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]337pub struct RpcCollection<AccountId> {338	pub owner: AccountId,339	pub mode: CollectionMode,340	pub name: Vec<u16>,341	pub description: Vec<u16>,342	pub token_prefix: Vec<u8>,343	pub sponsorship: SponsorshipState<AccountId>,344	pub limits: CollectionLimits,345	pub permissions: CollectionPermissions,346	pub token_property_permissions: Vec<PropertyKeyPermission>,347	pub properties: Vec<Property>,348	pub read_only: bool,349}350351#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, Derivative, MaxEncodedLen)]352#[derivative(Debug, Default(bound = ""))]353pub struct CreateCollectionData<AccountId> {354	#[derivative(Default(value = "CollectionMode::NFT"))]355	pub mode: CollectionMode,356	pub access: Option<AccessMode>,357	pub name: CollectionName,358	pub description: CollectionDescription,359	pub token_prefix: CollectionTokenPrefix,360	pub pending_sponsor: Option<AccountId>,361	pub limits: Option<CollectionLimits>,362	pub permissions: Option<CollectionPermissions>,363	pub token_property_permissions: CollectionPropertiesPermissionsVec,364	pub properties: CollectionPropertiesVec,365}366367pub type CollectionPropertiesPermissionsVec =368	BoundedVec<PropertyKeyPermission, ConstU32<MAX_PROPERTIES_PER_ITEM>>;369370pub type CollectionPropertiesVec = BoundedVec<Property, ConstU32<MAX_PROPERTIES_PER_ITEM>>;371372/// Limits and restrictions of a collection.373/// All fields are wrapped in `Option`s, where None means chain default.374///375/// todo:doc links to chain defaults376// IMPORTANT: When adding/removing fields from this struct - don't forget to also377// update clamp_limits() in pallet-common.378#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]379#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]380pub struct CollectionLimits {381	/// Maximum number of owned tokens per account. Chain default: [`ACCOUNT_TOKEN_OWNERSHIP_LIMIT`]382	pub account_token_ownership_limit: Option<u32>,383	/// Maximum size of data in bytes of a sponsored transaction. Chain default: [`CUSTOM_DATA_LIMIT`]384	pub sponsored_data_size: Option<u32>,385386	/// FIXME should we delete this or repurpose it?387	/// None - setVariableMetadata is not sponsored388	/// Some(v) - setVariableMetadata is sponsored389	///           if there is v block between txs390	///391	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]392	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,393	/// Maximum amount of tokens inside the collection. Chain default: [`COLLECTION_TOKEN_LIMIT`]394	pub token_limit: Option<u32>,395396	/// Timeout for sponsoring a token transfer in passed blocks. Chain default:397	/// either [`NFT_SPONSOR_TRANSFER_TIMEOUT`], [`FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`], or [`REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`],398	/// depending on the collection type.399	pub sponsor_transfer_timeout: Option<u32>,400	/// Timeout for sponsoring an approval in passed blocks. Chain default: [`SPONSOR_APPROVE_TIMEOUT`]401	pub sponsor_approve_timeout: Option<u32>,402	/// Can a token be transferred by the owner. Chain default: `false`403	pub owner_can_transfer: Option<bool>,404	/// Can a token be burned by the owner. Chain default: `true`405	pub owner_can_destroy: Option<bool>,406	/// Can a token be transferred at all. Chain default: `true`407	pub transfers_enabled: Option<bool>,408}409410impl CollectionLimits {411	pub fn account_token_ownership_limit(&self) -> u32 {412		self.account_token_ownership_limit413			.unwrap_or(ACCOUNT_TOKEN_OWNERSHIP_LIMIT)414			.min(MAX_TOKEN_OWNERSHIP)415	}416	pub fn sponsored_data_size(&self) -> u32 {417		self.sponsored_data_size418			.unwrap_or(CUSTOM_DATA_LIMIT)419			.min(CUSTOM_DATA_LIMIT)420	}421	pub fn token_limit(&self) -> u32 {422		self.token_limit423			.unwrap_or(COLLECTION_TOKEN_LIMIT)424			.min(COLLECTION_TOKEN_LIMIT)425	}426	pub fn sponsor_transfer_timeout(&self, default: u32) -> u32 {427		self.sponsor_transfer_timeout428			.unwrap_or(default)429			.min(MAX_SPONSOR_TIMEOUT)430	}431	pub fn sponsor_approve_timeout(&self) -> u32 {432		self.sponsor_approve_timeout433			.unwrap_or(SPONSOR_APPROVE_TIMEOUT)434			.min(MAX_SPONSOR_TIMEOUT)435	}436	pub fn owner_can_transfer(&self) -> bool {437		self.owner_can_transfer.unwrap_or(false)438	}439	pub fn owner_can_transfer_instaled(&self) -> bool {440		self.owner_can_transfer.is_some()441	}442	pub fn owner_can_destroy(&self) -> bool {443		self.owner_can_destroy.unwrap_or(true)444	}445	pub fn transfers_enabled(&self) -> bool {446		self.transfers_enabled.unwrap_or(true)447	}448	pub fn sponsored_data_rate_limit(&self) -> Option<u32> {449		match self450			.sponsored_data_rate_limit451			.unwrap_or(SponsoringRateLimit::SponsoringDisabled)452		{453			SponsoringRateLimit::SponsoringDisabled => None,454			SponsoringRateLimit::Blocks(v) => Some(v.min(MAX_SPONSOR_TIMEOUT)),455		}456	}457}458459/// Permissions on certain operations within a collection.460/// All fields are wrapped in `Option`s, where None means chain default.461// IMPORTANT: When adding/removing fields from this struct - don't forget to also462// update clamp_limits() in pallet-common.463#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]464#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]465pub struct CollectionPermissions {466	pub access: Option<AccessMode>,467	pub mint_mode: Option<bool>,468	pub nesting: Option<NestingPermissions>,469}470471impl CollectionPermissions {472	pub fn access(&self) -> AccessMode {473		self.access.unwrap_or(AccessMode::Normal)474	}475	pub fn mint_mode(&self) -> bool {476		self.mint_mode.unwrap_or(false)477	}478	pub fn nesting(&self) -> &NestingPermissions {479		static DEFAULT: NestingPermissions = NestingPermissions {480			token_owner: false,481			collection_admin: false,482			restricted: None,483			#[cfg(feature = "runtime-benchmarks")]484			permissive: false,485		};486		self.nesting.as_ref().unwrap_or(&DEFAULT)487	}488}489490type OwnerRestrictedSetInner = BoundedBTreeSet<CollectionId, ConstU32<16>>;491492#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]493#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]494#[derivative(Debug)]495pub struct OwnerRestrictedSet(496	#[cfg_attr(feature = "serde1", serde(with = "bounded::set_serde"))]497	#[derivative(Debug(format_with = "bounded::set_debug"))]498	pub OwnerRestrictedSetInner,499);500impl OwnerRestrictedSet {501	pub fn new() -> Self {502		Self(Default::default())503	}504}505impl core::ops::Deref for OwnerRestrictedSet {506	type Target = OwnerRestrictedSetInner;507	fn deref(&self) -> &Self::Target {508		&self.0509	}510}511impl core::ops::DerefMut for OwnerRestrictedSet {512	fn deref_mut(&mut self) -> &mut Self::Target {513		&mut self.0514	}515}516517/// Part of collection permissions, if set, defines who is able to nest tokens into other tokens.518#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]519#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]520#[derivative(Debug)]521pub struct NestingPermissions {522	/// Owner of token can nest tokens under it523	pub token_owner: bool,524	/// Admin of token collection can nest tokens under token525	pub collection_admin: bool,526	/// If set - only tokens from specified collections can be nested527	pub restricted: Option<OwnerRestrictedSet>,528529	#[cfg(feature = "runtime-benchmarks")]530	/// Anyone can nest tokens, mutually exclusive with `token_owner`, `admin`531	pub permissive: bool,532}533534/// Enum denominating how often can sponsoring occur if it is enabled.535#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]536#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]537pub enum SponsoringRateLimit {538	/// Sponsoring is disabled, and the collection sponsor will not pay for transactions539	SponsoringDisabled,540	/// Once per how many blocks can sponsorship of a transaction type occur541	Blocks(u32),542}543544/// Data used to describe an NFT at creation.545#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]546#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]547#[derivative(Debug)]548pub struct CreateNftData {549	/// Key-value pairs used to describe the token as metadata550	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]551	#[derivative(Debug(format_with = "bounded::vec_debug"))]552	pub properties: CollectionPropertiesVec,553}554555/// Data used to describe a Fungible token at creation.556#[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]557#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]558pub struct CreateFungibleData {559	/// Number of fungible coins minted560	pub value: u128,561}562563/// Data used to describe a Refungible token at creation.564#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]565#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]566#[derivative(Debug)]567pub struct CreateReFungibleData {568	/// Immutable metadata of the token569	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]570	#[derivative(Debug(format_with = "bounded::vec_debug"))]571	pub const_data: BoundedVec<u8, CustomDataLimit>,572573	/// Number of pieces the RFT is split into574	pub pieces: u128,575576	/// Key-value pairs used to describe the token as metadata577	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]578	#[derivative(Debug(format_with = "bounded::vec_debug"))]579	pub properties: CollectionPropertiesVec,580}581582#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]583#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]584pub enum MetaUpdatePermission {585	ItemOwner,586	Admin,587	None,588}589590/// Enum holding data used for creation of all three item types.591#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]592#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]593pub enum CreateItemData {594	NFT(CreateNftData),595	Fungible(CreateFungibleData),596	ReFungible(CreateReFungibleData),597}598599/// Explicit NFT creation data with meta parameters.600#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]601#[derivative(Debug)]602pub struct CreateNftExData<CrossAccountId> {603	#[derivative(Debug(format_with = "bounded::vec_debug"))]604	pub properties: CollectionPropertiesVec,605	pub owner: CrossAccountId,606}607608/// Explicit RFT creation data with meta parameters.609#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]610#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]611pub struct CreateRefungibleExData<CrossAccountId> {612	#[derivative(Debug(format_with = "bounded::vec_debug"))]613	pub const_data: BoundedVec<u8, CustomDataLimit>,614	#[derivative(Debug(format_with = "bounded::map_debug"))]615	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,616	#[derivative(Debug(format_with = "bounded::vec_debug"))]617	pub properties: CollectionPropertiesVec,618}619620/// Explicit item creation data with meta parameters, namely the owner.621#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]622#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]623pub enum CreateItemExData<CrossAccountId> {624	NFT(625		#[derivative(Debug(format_with = "bounded::vec_debug"))]626		BoundedVec<CreateNftExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,627	),628	Fungible(629		#[derivative(Debug(format_with = "bounded::map_debug"))]630		BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,631	),632	/// Many tokens, each may have only one owner633	RefungibleMultipleItems(634		#[derivative(Debug(format_with = "bounded::vec_debug"))]635		BoundedVec<CreateRefungibleExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,636	),637	/// Single token, which may have many owners638	RefungibleMultipleOwners(CreateRefungibleExData<CrossAccountId>),639}640641impl CreateItemData {642	pub fn data_size(&self) -> usize {643		match self {644			CreateItemData::ReFungible(data) => data.const_data.len(),645			_ => 0,646		}647	}648}649650impl From<CreateNftData> for CreateItemData {651	fn from(item: CreateNftData) -> Self {652		CreateItemData::NFT(item)653	}654}655656impl From<CreateReFungibleData> for CreateItemData {657	fn from(item: CreateReFungibleData) -> Self {658		CreateItemData::ReFungible(item)659	}660}661662impl From<CreateFungibleData> for CreateItemData {663	fn from(item: CreateFungibleData) -> Self {664		CreateItemData::Fungible(item)665	}666}667668/// Token's address, dictated by its collection and token IDs.669#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]670#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]671// todo possibly rename to be used generally as an address pair672pub struct TokenChild {673	pub token: TokenId,674	pub collection: CollectionId,675}676677#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]678#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]679pub struct CollectionStats {680	pub created: u32,681	pub destroyed: u32,682	pub alive: u32,683}684685#[derive(Encode, Decode, Clone, Debug)]686#[cfg_attr(feature = "std", derive(PartialEq))]687pub struct PhantomType<T>(core::marker::PhantomData<T>);688689impl<T: TypeInfo + 'static> TypeInfo for PhantomType<T> {690	type Identity = PhantomType<T>;691692	fn type_info() -> scale_info::Type {693		use scale_info::{694			Type, Path,695			build::{FieldsBuilder, UnnamedFields},696			type_params,697		};698		Type::builder()699			.path(Path::new("up_data_structs", "PhantomType"))700			.type_params(type_params!(T))701			.composite(<FieldsBuilder<UnnamedFields>>::default().field(|b| b.ty::<[T; 0]>()))702	}703}704impl<T> MaxEncodedLen for PhantomType<T> {705	fn max_encoded_len() -> usize {706		0707	}708}709710pub type BoundedBytes<S> = BoundedVec<u8, S>;711712pub type AuxPropertyValue = BoundedBytes<ConstU32<MAX_AUX_PROPERTY_VALUE_LENGTH>>;713714pub type PropertyKey = BoundedBytes<ConstU32<MAX_PROPERTY_KEY_LENGTH>>;715pub type PropertyValue = BoundedBytes<ConstU32<MAX_PROPERTY_VALUE_LENGTH>>;716717#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]718#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]719pub struct PropertyPermission {720	pub mutable: bool,721	pub collection_admin: bool,722	pub token_owner: bool,723}724725impl PropertyPermission {726	pub fn none() -> Self {727		Self {728			mutable: true,729			collection_admin: false,730			token_owner: false,731		}732	}733}734735#[derive(Encode, Decode, Debug, TypeInfo, Clone, PartialEq, MaxEncodedLen)]736#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]737pub struct Property {738	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]739	pub key: PropertyKey,740741	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]742	pub value: PropertyValue,743}744745impl Into<(PropertyKey, PropertyValue)> for Property {746	fn into(self) -> (PropertyKey, PropertyValue) {747		(self.key, self.value)748	}749}750751#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]752#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]753pub struct PropertyKeyPermission {754	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]755	pub key: PropertyKey,756757	pub permission: PropertyPermission,758}759760impl Into<(PropertyKey, PropertyPermission)> for PropertyKeyPermission {761	fn into(self) -> (PropertyKey, PropertyPermission) {762		(self.key, self.permission)763	}764}765766#[derive(Debug)]767pub enum PropertiesError {768	NoSpaceForProperty,769	PropertyLimitReached,770	InvalidCharacterInPropertyKey,771	PropertyKeyIsTooLong,772	EmptyPropertyKey,773}774775#[derive(Encode, Decode, MaxEncodedLen, TypeInfo, PartialEq, Clone, Copy)]776pub enum PropertyScope {777	None,778	Rmrk,779}780781impl PropertyScope {782	pub fn apply(self, key: PropertyKey) -> Result<PropertyKey, PropertiesError> {783		let scope_str: &[u8] = match self {784			Self::None => return Ok(key),785			Self::Rmrk => b"rmrk",786		};787788		[scope_str, b":", key.as_slice()]789			.concat()790			.try_into()791			.map_err(|_| PropertiesError::PropertyKeyIsTooLong)792	}793}794795pub trait TrySetProperty: Sized {796	type Value;797798	fn try_scoped_set(799		&mut self,800		scope: PropertyScope,801		key: PropertyKey,802		value: Self::Value,803	) -> Result<(), PropertiesError>;804805	fn try_scoped_set_from_iter<I, KV>(806		&mut self,807		scope: PropertyScope,808		iter: I,809	) -> Result<(), PropertiesError>810	where811		I: Iterator<Item = KV>,812		KV: Into<(PropertyKey, Self::Value)>,813	{814		for kv in iter {815			let (key, value) = kv.into();816			self.try_scoped_set(scope, key, value)?;817		}818819		Ok(())820	}821822	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError> {823		self.try_scoped_set(PropertyScope::None, key, value)824	}825826	fn try_set_from_iter<I, KV>(&mut self, iter: I) -> Result<(), PropertiesError>827	where828		I: Iterator<Item = KV>,829		KV: Into<(PropertyKey, Self::Value)>,830	{831		self.try_scoped_set_from_iter(PropertyScope::None, iter)832	}833}834835#[derive(Encode, Decode, TypeInfo, Derivative, Clone, PartialEq, MaxEncodedLen)]836#[derivative(Default(bound = ""))]837pub struct PropertiesMap<Value>(838	BoundedBTreeMap<PropertyKey, Value, ConstU32<MAX_PROPERTIES_PER_ITEM>>,839);840841impl<Value> PropertiesMap<Value> {842	pub fn new() -> Self {843		Self(BoundedBTreeMap::new())844	}845846	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<Value>, PropertiesError> {847		Self::check_property_key(key)?;848849		Ok(self.0.remove(key))850	}851852	pub fn get(&self, key: &PropertyKey) -> Option<&Value> {853		self.0.get(key)854	}855856	pub fn contains_key(&self, key: &PropertyKey) -> bool {857		self.0.contains_key(key)858	}859860	fn check_property_key(key: &PropertyKey) -> Result<(), PropertiesError> {861		if key.is_empty() {862			return Err(PropertiesError::EmptyPropertyKey);863		}864865		for byte in key.as_slice().iter() {866			let byte = *byte;867868			if !byte.is_ascii_alphanumeric() && byte != b'_' && byte != b'-' && byte != b'.' {869				return Err(PropertiesError::InvalidCharacterInPropertyKey);870			}871		}872873		Ok(())874	}875}876877impl<Value> IntoIterator for PropertiesMap<Value> {878	type Item = (PropertyKey, Value);879	type IntoIter = <880		BoundedBTreeMap<881			PropertyKey,882			Value,883			ConstU32<MAX_PROPERTIES_PER_ITEM>884		> as IntoIterator885	>::IntoIter;886887	fn into_iter(self) -> Self::IntoIter {888		self.0.into_iter()889	}890}891892impl<Value> TrySetProperty for PropertiesMap<Value> {893	type Value = Value;894895	fn try_scoped_set(896		&mut self,897		scope: PropertyScope,898		key: PropertyKey,899		value: Self::Value,900	) -> Result<(), PropertiesError> {901		Self::check_property_key(&key)?;902903		let key = scope.apply(key)?;904		self.0905			.try_insert(key, value)906			.map_err(|_| PropertiesError::PropertyLimitReached)?;907908		Ok(())909	}910}911912pub type PropertiesPermissionMap = PropertiesMap<PropertyPermission>;913914#[derive(Encode, Decode, TypeInfo, Clone, PartialEq, MaxEncodedLen)]915pub struct Properties {916	map: PropertiesMap<PropertyValue>,917	consumed_space: u32,918	space_limit: u32,919}920921impl Properties {922	pub fn new(space_limit: u32) -> Self {923		Self {924			map: PropertiesMap::new(),925			consumed_space: 0,926			space_limit,927		}928	}929930	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<PropertyValue>, PropertiesError> {931		let value = self.map.remove(key)?;932933		if let Some(ref value) = value {934			let value_len = value.len() as u32;935			self.consumed_space -= value_len;936		}937938		Ok(value)939	}940941	pub fn get(&self, key: &PropertyKey) -> Option<&PropertyValue> {942		self.map.get(key)943	}944}945946impl IntoIterator for Properties {947	type Item = (PropertyKey, PropertyValue);948	type IntoIter = <PropertiesMap<PropertyValue> as IntoIterator>::IntoIter;949950	fn into_iter(self) -> Self::IntoIter {951		self.map.into_iter()952	}953}954955impl TrySetProperty for Properties {956	type Value = PropertyValue;957958	fn try_scoped_set(959		&mut self,960		scope: PropertyScope,961		key: PropertyKey,962		value: Self::Value,963	) -> Result<(), PropertiesError> {964		let value_len = value.len();965966		if self.consumed_space as usize + value_len > self.space_limit as usize967			&& !cfg!(feature = "runtime-benchmarks")968		{969			return Err(PropertiesError::NoSpaceForProperty);970		}971972		self.map.try_scoped_set(scope, key, value)?;973974		self.consumed_space += value_len as u32;975976		Ok(())977	}978}979980pub struct CollectionProperties;981982impl Get<Properties> for CollectionProperties {983	fn get() -> Properties {984		Properties::new(MAX_COLLECTION_PROPERTIES_SIZE)985	}986}987988pub struct TokenProperties;989990impl Get<Properties> for TokenProperties {991	fn get() -> Properties {992		Properties::new(MAX_TOKEN_PROPERTIES_SIZE)993	}994}995996// RMRK997// todo document?998parameter_types! {999	#[derive(PartialEq, TypeInfo)]1000	pub const RmrkStringLimit: u32 = 128;1001	#[derive(PartialEq)]1002	pub const RmrkCollectionSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1003	#[derive(PartialEq)]1004	pub const RmrkResourceSymbolLimit: u32 = 10;1005	#[derive(PartialEq)]1006	pub const RmrkBaseSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1007	#[derive(PartialEq)]1008	pub const RmrkKeyLimit: u32 = 32;1009	#[derive(PartialEq)]1010	pub const RmrkValueLimit: u32 = 256;1011	#[derive(PartialEq)]1012	pub const RmrkMaxCollectionsEquippablePerPart: u32 = 100;1013	#[derive(PartialEq)]1014	pub const MaxPropertiesPerTheme: u32 = 5;1015	#[derive(PartialEq)]1016	pub const RmrkPartsLimit: u32 = 25;1017	#[derive(PartialEq)]1018	pub const RmrkMaxPriorities: u32 = 25;1019	#[derive(PartialEq)]1020	pub const MaxResourcesOnMint: u32 = 100;1021}10221023impl From<RmrkCollectionId> for CollectionId {1024	fn from(id: RmrkCollectionId) -> Self {1025		Self(id)1026	}1027}10281029impl From<RmrkNftId> for TokenId {1030	fn from(id: RmrkNftId) -> Self {1031		Self(id)1032	}1033}10341035pub type RmrkCollectionInfo<AccountId> =1036	CollectionInfo<RmrkString, RmrkCollectionSymbol, AccountId>;1037pub type RmrkInstanceInfo<AccountId> = NftInfo<AccountId, Permill, RmrkString>;1038pub type RmrkResourceInfo = ResourceInfo<RmrkString, RmrkBoundedParts>;1039pub type RmrkPropertyInfo = PropertyInfo<RmrkKeyString, RmrkValueString>;1040pub type RmrkBaseInfo<AccountId> = BaseInfo<AccountId, RmrkString>;1041pub type BoundedEquippableCollectionIds =1042	BoundedVec<RmrkCollectionId, RmrkMaxCollectionsEquippablePerPart>;1043pub type RmrkPartType = PartType<RmrkString, BoundedEquippableCollectionIds>;1044pub type RmrkEquippableList = EquippableList<BoundedEquippableCollectionIds>;1045pub type RmrkThemeProperty = ThemeProperty<RmrkString>;1046pub type RmrkTheme = Theme<RmrkString, Vec<RmrkThemeProperty>>;1047pub type RmrkBoundedTheme = Theme<RmrkString, BoundedVec<RmrkThemeProperty, MaxPropertiesPerTheme>>;1048pub type RmrkResourceTypes = ResourceTypes<RmrkString, RmrkBoundedParts>;10491050pub type RmrkBasicResource = BasicResource<RmrkString>;1051pub type RmrkComposableResource = ComposableResource<RmrkString, RmrkBoundedParts>;1052pub type RmrkSlotResource = SlotResource<RmrkString>;10531054pub type RmrkString = BoundedVec<u8, RmrkStringLimit>;1055pub type RmrkCollectionSymbol = BoundedVec<u8, RmrkCollectionSymbolLimit>;1056pub type RmrkBaseSymbol = BoundedVec<u8, RmrkBaseSymbolLimit>;1057pub type RmrkKeyString = BoundedVec<u8, RmrkKeyLimit>;1058pub type RmrkValueString = BoundedVec<u8, RmrkValueLimit>;1059pub type RmrkBoundedResource = BoundedVec<u8, RmrkResourceSymbolLimit>;1060pub type RmrkBoundedParts = BoundedVec<RmrkPartId, RmrkPartsLimit>; // todo make sure it is needed10611062pub type RmrkRpcString = Vec<u8>;1063pub type RmrkThemeName = RmrkRpcString;1064pub type RmrkPropertyKey = RmrkRpcString;
after · primitives/data-structs/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//! # Primitives crate.18//!19//! This crate contains types, traits and constants.2021#![cfg_attr(not(feature = "std"), no_std)]2223use core::{24	convert::{TryFrom, TryInto},25	fmt,26};27use frame_support::{28	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},29	traits::Get,30	parameter_types,31};3233#[cfg(feature = "serde")]34use serde::{Serialize, Deserialize};3536use sp_core::U256;37use sp_runtime::{ArithmeticError, sp_std::prelude::Vec, Permill};38use codec::{Decode, Encode, EncodeLike, MaxEncodedLen};39use frame_support::{BoundedVec, traits::ConstU32};40use derivative::Derivative;41use scale_info::TypeInfo;4243// RMRK44use rmrk_traits::{45	CollectionInfo, NftInfo, ResourceInfo, PropertyInfo, BaseInfo, PartType, Theme, ThemeProperty,46	ResourceTypes, BasicResource, ComposableResource, SlotResource, EquippableList,47};48pub use rmrk_traits::{49	primitives::{50		CollectionId as RmrkCollectionId, NftId as RmrkNftId, BaseId as RmrkBaseId,51		SlotId as RmrkSlotId, PartId as RmrkPartId, ResourceId as RmrkResourceId,52	},53	NftChild as RmrkNftChild, AccountIdOrCollectionNftTuple as RmrkAccountIdOrCollectionNftTuple,54	FixedPart as RmrkFixedPart, SlotPart as RmrkSlotPart,55};5657mod bounded;58pub mod budget;59pub mod mapping;60mod migration;6162/// Maximum of decimal points.63pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;6465/// Maximum pieces for refungible token.66pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;67pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;6869/// Maximum tokens for user.70pub const MAX_TOKEN_OWNERSHIP: u32 = if cfg!(not(feature = "limit-testing")) {71	100_00072} else {73	1074};7576/// Maximum for collections can be created.77pub const COLLECTION_NUMBER_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {78	100_00079} else {80	1081};8283/// Maximum for various custom data of token.84pub const CUSTOM_DATA_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {85	204886} else {87	1088};8990/// Maximum admins per collection.91pub const COLLECTION_ADMINS_LIMIT: u32 = 5;9293/// Maximum tokens per collection.94pub const COLLECTION_TOKEN_LIMIT: u32 = u32::MAX;9596/// Maximum tokens per account.97pub const ACCOUNT_TOKEN_OWNERSHIP_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {98	1_000_00099} else {100	10101};102103/// Default timeout for transfer sponsoring NFT item.104pub const NFT_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;105/// Default timeout for transfer sponsoring fungible item.106pub const FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;107/// Default timeout for transfer sponsoring refungible item.108pub const REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;109110/// Default timeout for sponsored approving.111pub const SPONSOR_APPROVE_TIMEOUT: u32 = 5;112113// Schema limits114pub const OFFCHAIN_SCHEMA_LIMIT: u32 = 8192;115pub const VARIABLE_ON_CHAIN_SCHEMA_LIMIT: u32 = 8192;116pub const CONST_ON_CHAIN_SCHEMA_LIMIT: u32 = 32768;117118// TODO: not used. Delete?119pub const COLLECTION_FIELD_LIMIT: u32 = CONST_ON_CHAIN_SCHEMA_LIMIT;120121/// Maximum length for collection name.122pub const MAX_COLLECTION_NAME_LENGTH: u32 = 64;123124/// Maximum length for collection description.125pub const MAX_COLLECTION_DESCRIPTION_LENGTH: u32 = 256;126127/// Maximal token prefix length.128pub const MAX_TOKEN_PREFIX_LENGTH: u32 = 16;129130/// Maximal lenght of property key.131pub const MAX_PROPERTY_KEY_LENGTH: u32 = 256;132133/// Maximal lenght of property value.134pub const MAX_PROPERTY_VALUE_LENGTH: u32 = 32768;135136/// Maximum properties that can be assigned to token.137pub const MAX_PROPERTIES_PER_ITEM: u32 = 64;138139/// Maximal lenght of extended property value.140pub const MAX_AUX_PROPERTY_VALUE_LENGTH: u32 = 2048;141142/// Maximum size for all collection properties.143pub const MAX_COLLECTION_PROPERTIES_SIZE: u32 = 40960;144145/// Maximum size for all token properties.146pub const MAX_TOKEN_PROPERTIES_SIZE: u32 = 32768;147148/// How much items can be created per single149/// create_many call.150pub const MAX_ITEMS_PER_BATCH: u32 = 200;151152/// Used for limit bounded types of token custom data.153pub type CustomDataLimit = ConstU32<CUSTOM_DATA_LIMIT>;154155/// Collection id.156#[derive(157	Encode,158	Decode,159	PartialEq,160	Eq,161	PartialOrd,162	Ord,163	Clone,164	Copy,165	Debug,166	Default,167	TypeInfo,168	MaxEncodedLen,169)]170#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]171pub struct CollectionId(pub u32);172impl EncodeLike<u32> for CollectionId {}173impl EncodeLike<CollectionId> for u32 {}174175/// Token id.176#[derive(177	Encode,178	Decode,179	PartialEq,180	Eq,181	PartialOrd,182	Ord,183	Clone,184	Copy,185	Debug,186	Default,187	TypeInfo,188	MaxEncodedLen,189)]190#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]191pub struct TokenId(pub u32);192impl EncodeLike<u32> for TokenId {}193impl EncodeLike<TokenId> for u32 {}194195impl TokenId {196	/// Try to get next token id.197	///198	/// If next id cause overflow, then [`ArithmeticError::Overflow`] returned.199	pub fn try_next(self) -> Result<TokenId, ArithmeticError> {200		self.0201			.checked_add(1)202			.ok_or(ArithmeticError::Overflow)203			.map(Self)204	}205}206207impl From<TokenId> for U256 {208	fn from(t: TokenId) -> Self {209		t.0.into()210	}211}212213impl TryFrom<U256> for TokenId {214	type Error = &'static str;215216	fn try_from(value: U256) -> Result<Self, Self::Error> {217		Ok(TokenId(value.try_into().map_err(|_| "too large token id")?))218	}219}220221/// Token data.222#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]223#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]224pub struct TokenData<CrossAccountId> {225	/// Properties of token.226	pub properties: Vec<Property>,227228	/// Token owner.229	pub owner: Option<CrossAccountId>,230231	/// Token pieces.232	pub pieces: u128,233}234235// TODO: unused type236pub struct OverflowError;237impl From<OverflowError> for &'static str {238	fn from(_: OverflowError) -> Self {239		"overflow occured"240	}241}242243/// Alias for decimal points type.244pub type DecimalPoints = u8;245246/// Collection mode.247///248/// Collection can represent various types of tokens.249/// Each collection can contain only one type of tokens at a time.250/// This type helps to understand which tokens the collection contains.251#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]252#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]253pub enum CollectionMode {254	/// Non fungible tokens.255	NFT,256	/// Fungible tokens.257	Fungible(DecimalPoints),258	/// Refungible tokens.259	ReFungible,260}261262impl CollectionMode {263	/// Get collection mod as number.264	pub fn id(&self) -> u8 {265		match self {266			CollectionMode::NFT => 1,267			CollectionMode::Fungible(_) => 2,268			CollectionMode::ReFungible => 3,269		}270	}271}272273// TODO: unused trait274pub trait SponsoringResolve<AccountId, Call> {275	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;276}277278/// Access mode for some token operations.279#[derive(Encode, Decode, Eq, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]280#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]281pub enum AccessMode {282	/// Access grant for owner and admins. Used as default.283	Normal,284	/// Like a [`Normal`](AccessMode::Normal) but also users in allow list.285	AllowList,286}287impl Default for AccessMode {288	fn default() -> Self {289		Self::Normal290	}291}292293// TODO: remove in future.294#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]295#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]296pub enum SchemaVersion {297	ImageURL,298	Unique,299}300impl Default for SchemaVersion {301	fn default() -> Self {302		Self::ImageURL303	}304}305306// TODO: unused type307#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]308#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]309pub struct Ownership<AccountId> {310	pub owner: AccountId,311	pub fraction: u128,312}313314/// The state of collection sponsorship.315#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]316#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]317pub enum SponsorshipState<AccountId> {318	/// The fees are applied to the transaction sender.319	Disabled,320	/// The sponsor is under consideration. Until the sponsor gives his consent,321	/// the fee will still be charged to sender.322	Unconfirmed(AccountId),323	/// Transactions are sponsored by specified account.324	Confirmed(AccountId),325}326327impl<AccountId> SponsorshipState<AccountId> {328	/// Get a sponsor of the collection who has confirmed his status.329	pub fn sponsor(&self) -> Option<&AccountId> {330		match self {331			Self::Confirmed(sponsor) => Some(sponsor),332			_ => None,333		}334	}335336	/// Get a sponsor of the collection who has pending or confirmed status.337	pub fn pending_sponsor(&self) -> Option<&AccountId> {338		match self {339			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),340			_ => None,341		}342	}343344	/// Whether the sponsorship is confirmed.345	pub fn confirmed(&self) -> bool {346		matches!(self, Self::Confirmed(_))347	}348}349350impl<T> Default for SponsorshipState<T> {351	fn default() -> Self {352		Self::Disabled353	}354}355356pub type CollectionName = BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>;357pub type CollectionDescription = BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>;358pub type CollectionTokenPrefix = BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>;359360/// Base structure for represent collection.361///362/// Used to provide basic functionality for all types of collections.363///364/// #### Note365/// Collection parameters, used in storage (see [`RpcCollection`] for the RPC version).366#[struct_versioning::versioned(version = 2, upper)]367#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]368pub struct Collection<AccountId> {369	/// Collection owner account.370	pub owner: AccountId,371372	/// Collection mode.373	pub mode: CollectionMode,374375	/// Access mode.376	#[version(..2)]377	pub access: AccessMode,378379	/// Collection name.380	pub name: CollectionName,381382	/// Collection description.383	pub description: CollectionDescription,384385	/// Token prefix.386	pub token_prefix: CollectionTokenPrefix,387388	#[version(..2)]389	pub mint_mode: bool,390391	#[version(..2)]392	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,393394	#[version(..2)]395	pub schema_version: SchemaVersion,396397	/// The state of sponsorship of the collection.398	pub sponsorship: SponsorshipState<AccountId>,399400	/// Collection limits.401	pub limits: CollectionLimits,402403	/// Collection permissions.404	#[version(2.., upper(Default::default()))]405	pub permissions: CollectionPermissions,406407	/// Marks that this collection is not "unique", and managed from external.408	#[version(2.., upper(false))]409	pub external_collection: bool,410411	#[version(..2)]412	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,413414	#[version(..2)]415	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,416417	#[version(..2)]418	pub meta_update_permission: MetaUpdatePermission,419}420421/// Collection parameters, used in RPC calls (see [`Collection`] for the storage version).422#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]423#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]424pub struct RpcCollection<AccountId> {425	/// Collection owner account.426	pub owner: AccountId,427428	/// Collection mode.429	pub mode: CollectionMode,430431	/// Collection name.432	pub name: Vec<u16>,433434	/// Collection description.435	pub description: Vec<u16>,436437	/// Token prefix.438	pub token_prefix: Vec<u8>,439440	/// The state of sponsorship of the collection.441	pub sponsorship: SponsorshipState<AccountId>,442443	/// Collection limits.444	pub limits: CollectionLimits,445446	/// Collection permissions.447	pub permissions: CollectionPermissions,448449	/// Token property permissions.450	pub token_property_permissions: Vec<PropertyKeyPermission>,451452	/// Collection properties.453	pub properties: Vec<Property>,454455	/// Is collection read only.456	pub read_only: bool,457}458459/// Data used for create collection.460///461/// All fields are wrapped in [`Option`], where `None` means chain default.462#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, Derivative, MaxEncodedLen)]463#[derivative(Debug, Default(bound = ""))]464pub struct CreateCollectionData<AccountId> {465	/// Collection mode.466	#[derivative(Default(value = "CollectionMode::NFT"))]467	pub mode: CollectionMode,468469	/// Access mode.470	pub access: Option<AccessMode>,471472	/// Collection name.473	pub name: CollectionName,474475	/// Collection description.476	pub description: CollectionDescription,477478	/// Token prefix.479	pub token_prefix: CollectionTokenPrefix,480481	/// Pending collection sponsor.482	pub pending_sponsor: Option<AccountId>,483484	/// Collection limits.485	pub limits: Option<CollectionLimits>,486487	/// Collection permissions.488	pub permissions: Option<CollectionPermissions>,489490	/// Token property permissions.491	pub token_property_permissions: CollectionPropertiesPermissionsVec,492493	/// Collection properties.494	pub properties: CollectionPropertiesVec,495}496497/// Bounded vector of properties permissions. Max length is [`MAX_PROPERTIES_PER_ITEM`].498// TODO: maybe rename to PropertiesPermissionsVec499pub type CollectionPropertiesPermissionsVec =500	BoundedVec<PropertyKeyPermission, ConstU32<MAX_PROPERTIES_PER_ITEM>>;501502/// Bounded vector of properties. Max length is [`MAX_PROPERTIES_PER_ITEM`].503pub type CollectionPropertiesVec = BoundedVec<Property, ConstU32<MAX_PROPERTIES_PER_ITEM>>;504505/// Limits and restrictions of a collection.506///507/// All fields are wrapped in [`Option`], where `None` means chain default.508///509/// Update with `pallet_common::Pallet::clamp_limits`.510// IMPORTANT: When adding/removing fields from this struct - don't forget to also511#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]512#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]513// When adding/removing fields from this struct - don't forget to also update with `pallet_common::Pallet::clamp_limits`.514// TODO: move `pallet_common::Pallet::clamp_limits` into `impl CollectionLimits`.515// TODO: may be remove [`Option`] and **pub** from fields and create struct with default values.516pub struct CollectionLimits {517	/// How many tokens can a user have on one account.518	/// * Default - [`ACCOUNT_TOKEN_OWNERSHIP_LIMIT`].519	/// * Limit - [`MAX_TOKEN_OWNERSHIP`].520	pub account_token_ownership_limit: Option<u32>,521522	/// How many bytes of data are available for sponsorship.523	/// * Default - [`CUSTOM_DATA_LIMIT`].524	/// * Limit - [`CUSTOM_DATA_LIMIT`].525	pub sponsored_data_size: Option<u32>,526527	// FIXME should we delete this or repurpose it?528	/// Times in how many blocks we sponsor data.529	///530	/// If is `Some(v)` then **setVariableMetadata** is sponsored if there is `v` block between transactions.531	///532	/// * Default - [`SponsoringDisabled`](SponsoringRateLimit::SponsoringDisabled).533	/// * Limit - [`MAX_SPONSOR_TIMEOUT`].534	///535	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]536	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,537	/// Maximum amount of tokens inside the collection. Chain default: [`COLLECTION_TOKEN_LIMIT`]538539	/// How many tokens can be mined into this collection.540	///541	/// * Default - [`COLLECTION_TOKEN_LIMIT`].542	/// * Limit - [`COLLECTION_TOKEN_LIMIT`].543	pub token_limit: Option<u32>,544545	/// Timeouts for transfer sponsoring.546	///547	/// * Default548	///   - **Fungible** - [`FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`]549	///   - **NFT** - [`NFT_SPONSOR_TRANSFER_TIMEOUT`]550	///   - **Refungible** - [`REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`]551	/// * Limit - [`MAX_SPONSOR_TIMEOUT`].552	pub sponsor_transfer_timeout: Option<u32>,553554	/// Timeout for sponsoring an approval in passed blocks.555	///556	/// * Default - [`SPONSOR_APPROVE_TIMEOUT`].557	/// * Limit - [`MAX_SPONSOR_TIMEOUT`].558	pub sponsor_approve_timeout: Option<u32>,559560	/// Whether the collection owner of the collection can send tokens (which belong to other users).561	///562	/// * Default - **false**.563	pub owner_can_transfer: Option<bool>,564565	/// Can the collection owner burn other people's tokens.566	///567	/// * Default - **true**.568	pub owner_can_destroy: Option<bool>,569570	/// Is it possible to send tokens from this collection between users.571	///572	/// * Default - **true**.573	pub transfers_enabled: Option<bool>,574}575576impl CollectionLimits {577	/// Get effective value for [`account_token_ownership_limit`](self.account_token_ownership_limit).578	pub fn account_token_ownership_limit(&self) -> u32 {579		self.account_token_ownership_limit580			.unwrap_or(ACCOUNT_TOKEN_OWNERSHIP_LIMIT)581			.min(MAX_TOKEN_OWNERSHIP)582	}583584	/// Get effective value for [`sponsored_data_size`](self.sponsored_data_size).585	pub fn sponsored_data_size(&self) -> u32 {586		self.sponsored_data_size587			.unwrap_or(CUSTOM_DATA_LIMIT)588			.min(CUSTOM_DATA_LIMIT)589	}590591	/// Get effective value for [`token_limit`](self.token_limit).592	pub fn token_limit(&self) -> u32 {593		self.token_limit594			.unwrap_or(COLLECTION_TOKEN_LIMIT)595			.min(COLLECTION_TOKEN_LIMIT)596	}597598	// TODO: may be replace u32 to mode?599	/// Get effective value for [`sponsor_transfer_timeout`](self.sponsor_transfer_timeout).600	pub fn sponsor_transfer_timeout(&self, default: u32) -> u32 {601		self.sponsor_transfer_timeout602			.unwrap_or(default)603			.min(MAX_SPONSOR_TIMEOUT)604	}605606	/// Get effective value for [`sponsor_approve_timeout`](self.sponsor_approve_timeout).607	pub fn sponsor_approve_timeout(&self) -> u32 {608		self.sponsor_approve_timeout609			.unwrap_or(SPONSOR_APPROVE_TIMEOUT)610			.min(MAX_SPONSOR_TIMEOUT)611	}612613	/// Get effective value for [`owner_can_transfer`](self.owner_can_transfer).614	pub fn owner_can_transfer(&self) -> bool {615		self.owner_can_transfer.unwrap_or(false)616	}617618	/// Get effective value for [`owner_can_transfer_instaled`](self.owner_can_transfer_instaled).619	pub fn owner_can_transfer_instaled(&self) -> bool {620		self.owner_can_transfer.is_some()621	}622623	/// Get effective value for [`owner_can_destroy`](self.owner_can_destroy).624	pub fn owner_can_destroy(&self) -> bool {625		self.owner_can_destroy.unwrap_or(true)626	}627628	/// Get effective value for [`transfers_enabled`](self.transfers_enabled).629	pub fn transfers_enabled(&self) -> bool {630		self.transfers_enabled.unwrap_or(true)631	}632633	/// Get effective value for [`sponsored_data_rate_limit`](self.sponsored_data_rate_limit).634	pub fn sponsored_data_rate_limit(&self) -> Option<u32> {635		match self636			.sponsored_data_rate_limit637			.unwrap_or(SponsoringRateLimit::SponsoringDisabled)638		{639			SponsoringRateLimit::SponsoringDisabled => None,640			SponsoringRateLimit::Blocks(v) => Some(v.min(MAX_SPONSOR_TIMEOUT)),641		}642	}643}644645/// Permissions on certain operations within a collection.646///647/// Some fields are wrapped in [`Option`], where `None` means chain default.648///649/// Update with `pallet_common::Pallet::clamp_permissions`.650#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]651#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]652// When adding/removing fields from this struct - don't forget to also update `pallet_common::Pallet::clamp_permissions`.653// TODO: move `pallet_common::Pallet::clamp_permissions` into `impl CollectionPermissions`.654pub struct CollectionPermissions {655	/// Access mode.656	///657	/// * Default - [`AccessMode::Normal`].658	pub access: Option<AccessMode>,659660	/// Minting allowance.661	///662	/// * Default - **false**.663	pub mint_mode: Option<bool>,664665	/// Permissions for nesting.666	///667	/// * Default668	///   - `token_owner` - **false**669	///   - `collection_admin` - **false**670	///   - `restricted` - **None**671	pub nesting: Option<NestingPermissions>,672}673674impl CollectionPermissions {675	/// Get effective value for [`access`](self.access).676	pub fn access(&self) -> AccessMode {677		self.access.unwrap_or(AccessMode::Normal)678	}679680	/// Get effective value for [`mint_mode`](self.mint_mode).681	pub fn mint_mode(&self) -> bool {682		self.mint_mode.unwrap_or(false)683	}684685	/// Get effective value for [`nesting`](self.nesting).686	pub fn nesting(&self) -> &NestingPermissions {687		static DEFAULT: NestingPermissions = NestingPermissions {688			token_owner: false,689			collection_admin: false,690			restricted: None,691			#[cfg(feature = "runtime-benchmarks")]692			permissive: false,693		};694		self.nesting.as_ref().unwrap_or(&DEFAULT)695	}696}697698/// Inner set for collections allowed to nest.699type OwnerRestrictedSetInner = BoundedBTreeSet<CollectionId, ConstU32<16>>;700701/// Wraper for collections set allowing nest.702#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]703#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]704#[derivative(Debug)]705pub struct OwnerRestrictedSet(706	#[cfg_attr(feature = "serde1", serde(with = "bounded::set_serde"))]707	#[derivative(Debug(format_with = "bounded::set_debug"))]708	pub OwnerRestrictedSetInner,709);710711impl OwnerRestrictedSet {712	/// Create new set.713	pub fn new() -> Self {714		Self(Default::default())715	}716}717impl core::ops::Deref for OwnerRestrictedSet {718	type Target = OwnerRestrictedSetInner;719	fn deref(&self) -> &Self::Target {720		&self.0721	}722}723impl core::ops::DerefMut for OwnerRestrictedSet {724	fn deref_mut(&mut self) -> &mut Self::Target {725		&mut self.0726	}727}728729/// Part of collection permissions, if set, defines who is able to nest tokens into other tokens.730#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]731#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]732#[derivative(Debug)]733pub struct NestingPermissions {734	/// Owner of token can nest tokens under it.735	pub token_owner: bool,736	/// Admin of token collection can nest tokens under token.737	pub collection_admin: bool,738	/// If set - only tokens from specified collections can be nested.739	pub restricted: Option<OwnerRestrictedSet>,740741	#[cfg(feature = "runtime-benchmarks")]742	/// Anyone can nest tokens, mutually exclusive with `token_owner`, `admin`.743	pub permissive: bool,744}745746/// Enum denominating how often can sponsoring occur if it is enabled.747///748/// Used for [`collection limits`](CollectionLimits).749#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]750#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]751pub enum SponsoringRateLimit {752	/// Sponsoring is disabled, and the collection sponsor will not pay for transactions753	SponsoringDisabled,754	/// Once per how many blocks can sponsorship of a transaction type occur755	Blocks(u32),756}757758/// Data used to describe an NFT at creation.759#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]760#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]761#[derivative(Debug)]762pub struct CreateNftData {763	/// Key-value pairs used to describe the token as metadata764	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]765	#[derivative(Debug(format_with = "bounded::vec_debug"))]766	/// Properties that wil be assignet to created item.767	pub properties: CollectionPropertiesVec,768}769770/// Data used to describe a Fungible token at creation.771#[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]772#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]773pub struct CreateFungibleData {774	/// Number of fungible coins minted775	pub value: u128,776}777778/// Data used to describe a Refungible token at creation.779#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]780#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]781#[derivative(Debug)]782pub struct CreateReFungibleData {783	/// Immutable metadata of the token784	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]785	#[derivative(Debug(format_with = "bounded::vec_debug"))]786	pub const_data: BoundedVec<u8, CustomDataLimit>,787788	/// Pieces of created token.789	pub pieces: u128,790791	/// Key-value pairs used to describe the token as metadata792	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]793	#[derivative(Debug(format_with = "bounded::vec_debug"))]794	pub properties: CollectionPropertiesVec,795}796797// TODO: remove this.798#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]799#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]800pub enum MetaUpdatePermission {801	ItemOwner,802	Admin,803	None,804}805806/// Enum holding data used for creation of all three item types.807/// Unified data for create item.808#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]809#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]810pub enum CreateItemData {811	/// Data for create NFT.812	NFT(CreateNftData),813	/// Data for create Fungible item.814	Fungible(CreateFungibleData),815	/// Data for create ReFungible item.816	ReFungible(CreateReFungibleData),817}818819/// Extended data for create NFT.820#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]821#[derivative(Debug)]822pub struct CreateNftExData<CrossAccountId> {823	/// Properties that wil be assignet to created item.824	#[derivative(Debug(format_with = "bounded::vec_debug"))]825	pub properties: CollectionPropertiesVec,826827	/// Owner of creating item.828	pub owner: CrossAccountId,829}830831/// Extended data for create ReFungible item.832#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]833#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]834pub struct CreateRefungibleExData<CrossAccountId> {835	/// Custom data stored in token.836	#[derivative(Debug(format_with = "bounded::vec_debug"))]837	pub const_data: BoundedVec<u8, CustomDataLimit>,838839	/// Users who will be assigned the specified number of token parts.840	#[derivative(Debug(format_with = "bounded::map_debug"))]841	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,842	#[derivative(Debug(format_with = "bounded::vec_debug"))]843	pub properties: CollectionPropertiesVec,844}845846/// Unified extended data for creating item.847#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]848#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]849pub enum CreateItemExData<CrossAccountId> {850	/// Extended data for create NFT.851	NFT(852		#[derivative(Debug(format_with = "bounded::vec_debug"))]853		BoundedVec<CreateNftExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,854	),855856	/// Extended data for create Fungible item.857	Fungible(858		#[derivative(Debug(format_with = "bounded::map_debug"))]859		BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,860	),861862	/// Extended data for create ReFungible item in case of863	/// many tokens, each may have only one owner864	RefungibleMultipleItems(865		#[derivative(Debug(format_with = "bounded::vec_debug"))]866		BoundedVec<CreateRefungibleExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,867	),868869	/// Extended data for create ReFungible item in case of870	/// single token, which may have many owners871	RefungibleMultipleOwners(CreateRefungibleExData<CrossAccountId>),872}873874impl CreateItemData {875	/// Get size of custom data.876	pub fn data_size(&self) -> usize {877		match self {878			CreateItemData::ReFungible(data) => data.const_data.len(),879			_ => 0,880		}881	}882}883884impl From<CreateNftData> for CreateItemData {885	fn from(item: CreateNftData) -> Self {886		CreateItemData::NFT(item)887	}888}889890impl From<CreateReFungibleData> for CreateItemData {891	fn from(item: CreateReFungibleData) -> Self {892		CreateItemData::ReFungible(item)893	}894}895896impl From<CreateFungibleData> for CreateItemData {897	fn from(item: CreateFungibleData) -> Self {898		CreateItemData::Fungible(item)899	}900}901902/// Token's address, dictated by its collection and token IDs.903#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]904#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]905// todo possibly rename to be used generally as an address pair906pub struct TokenChild {907	/// Token id.908	pub token: TokenId,909910	/// Collection id.911	pub collection: CollectionId,912}913914/// Collection statistics.915#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]916#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]917pub struct CollectionStats {918	/// Number of created items.919	pub created: u32,920921	/// Number of burned items.922	pub destroyed: u32,923924	/// Number of current items.925	pub alive: u32,926}927928/// This type works like [`PhantomData`] but supports generating _scale-info_ descriptions to generate node metadata.929#[derive(Encode, Decode, Clone, Debug)]930#[cfg_attr(feature = "std", derive(PartialEq))]931pub struct PhantomType<T>(core::marker::PhantomData<T>);932933impl<T: TypeInfo + 'static> TypeInfo for PhantomType<T> {934	type Identity = PhantomType<T>;935936	fn type_info() -> scale_info::Type {937		use scale_info::{938			Type, Path,939			build::{FieldsBuilder, UnnamedFields},940			type_params,941		};942		Type::builder()943			.path(Path::new("up_data_structs", "PhantomType"))944			.type_params(type_params!(T))945			.composite(<FieldsBuilder<UnnamedFields>>::default().field(|b| b.ty::<[T; 0]>()))946	}947}948impl<T> MaxEncodedLen for PhantomType<T> {949	fn max_encoded_len() -> usize {950		0951	}952}953954/// Bounded vector of bytes.955pub type BoundedBytes<S> = BoundedVec<u8, S>;956957/// Extra properties for external collections.958pub type AuxPropertyValue = BoundedBytes<ConstU32<MAX_AUX_PROPERTY_VALUE_LENGTH>>;959960/// Property key.961pub type PropertyKey = BoundedBytes<ConstU32<MAX_PROPERTY_KEY_LENGTH>>;962963/// Property value.964pub type PropertyValue = BoundedBytes<ConstU32<MAX_PROPERTY_VALUE_LENGTH>>;965966/// Property permission.967#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]968#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]969pub struct PropertyPermission {970	/// Permission to change the property and property permission.971	///972	/// If it **false** then you can not change corresponding property even if [`collection_admin`] and [`token_owner`] are **true**.973	pub mutable: bool,974975	/// Change permission for the collection administrator.976	pub collection_admin: bool,977978	/// Permission to change the property for the owner of the token.979	pub token_owner: bool,980}981982impl PropertyPermission {983	/// Creates mutable property permission but changes restricted for collection admin and token owner.984	pub fn none() -> Self {985		Self {986			mutable: true,987			collection_admin: false,988			token_owner: false,989		}990	}991}992993/// Property is simpl key-value record.994#[derive(Encode, Decode, Debug, TypeInfo, Clone, PartialEq, MaxEncodedLen)]995#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]996pub struct Property {997	/// Property key.998	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]999	pub key: PropertyKey,10001001	/// Property value.1002	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]1003	pub value: PropertyValue,1004}10051006impl Into<(PropertyKey, PropertyValue)> for Property {1007	fn into(self) -> (PropertyKey, PropertyValue) {1008		(self.key, self.value)1009	}1010}10111012/// Record for proprty key permission.1013#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]1014#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]1015pub struct PropertyKeyPermission {1016	/// Key.1017	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]1018	pub key: PropertyKey,10191020	/// Permission.1021	pub permission: PropertyPermission,1022}10231024impl Into<(PropertyKey, PropertyPermission)> for PropertyKeyPermission {1025	fn into(self) -> (PropertyKey, PropertyPermission) {1026		(self.key, self.permission)1027	}1028}10291030/// Errors for properties actions.1031#[derive(Debug)]1032pub enum PropertiesError {1033	/// The space allocated for properties has run out.1034	///1035	/// * Limit for colection - [`MAX_COLLECTION_PROPERTIES_SIZE`].1036	/// * Limit for token - [`MAX_TOKEN_PROPERTIES_SIZE`].1037	NoSpaceForProperty,10381039	/// The property limit has been reached.1040	///1041	/// * Limit - [`MAX_PROPERTIES_PER_ITEM`].1042	PropertyLimitReached,10431044	/// Property key contains not allowed character.1045	InvalidCharacterInPropertyKey,10461047	/// Property key length is too long.1048	///1049	/// * Limit - [`MAX_PROPERTY_KEY_LENGTH`].1050	PropertyKeyIsTooLong,10511052	/// Property key is empty.1053	EmptyPropertyKey,1054}10551056/// Marker for scope of property.1057///1058/// Scoped property can't be changed by user. Used for external collections.1059#[derive(Encode, Decode, MaxEncodedLen, TypeInfo, PartialEq, Clone, Copy)]1060pub enum PropertyScope {1061	None,1062	Rmrk,1063}10641065impl PropertyScope {1066	/// Apply scope to property key.1067	pub fn apply(self, key: PropertyKey) -> Result<PropertyKey, PropertiesError> {1068		let scope_str: &[u8] = match self {1069			Self::None => return Ok(key),1070			Self::Rmrk => b"rmrk",1071		};10721073		[scope_str, b":", key.as_slice()]1074			.concat()1075			.try_into()1076			.map_err(|_| PropertiesError::PropertyKeyIsTooLong)1077	}1078}10791080/// Trait for operate with properties.1081pub trait TrySetProperty: Sized {1082	type Value;10831084	/// Try to set property with scope.1085	fn try_scoped_set(1086		&mut self,1087		scope: PropertyScope,1088		key: PropertyKey,1089		value: Self::Value,1090	) -> Result<(), PropertiesError>;10911092	/// Try to set property with scope from iterator.1093	fn try_scoped_set_from_iter<I, KV>(1094		&mut self,1095		scope: PropertyScope,1096		iter: I,1097	) -> Result<(), PropertiesError>1098	where1099		I: Iterator<Item = KV>,1100		KV: Into<(PropertyKey, Self::Value)>,1101	{1102		for kv in iter {1103			let (key, value) = kv.into();1104			self.try_scoped_set(scope, key, value)?;1105		}11061107		Ok(())1108	}11091110	/// Try to set property.1111	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError> {1112		self.try_scoped_set(PropertyScope::None, key, value)1113	}11141115	/// Try to set property from iterator.1116	fn try_set_from_iter<I, KV>(&mut self, iter: I) -> Result<(), PropertiesError>1117	where1118		I: Iterator<Item = KV>,1119		KV: Into<(PropertyKey, Self::Value)>,1120	{1121		self.try_scoped_set_from_iter(PropertyScope::None, iter)1122	}1123}11241125/// Wrapped map for storing properties.1126#[derive(Encode, Decode, TypeInfo, Derivative, Clone, PartialEq, MaxEncodedLen)]1127#[derivative(Default(bound = ""))]1128pub struct PropertiesMap<Value>(1129	BoundedBTreeMap<PropertyKey, Value, ConstU32<MAX_PROPERTIES_PER_ITEM>>,1130);11311132impl<Value> PropertiesMap<Value> {1133	/// Create new property map.1134	pub fn new() -> Self {1135		Self(BoundedBTreeMap::new())1136	}11371138	/// Remove property from map.1139	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<Value>, PropertiesError> {1140		Self::check_property_key(key)?;11411142		Ok(self.0.remove(key))1143	}11441145	/// Get property with appropriate key from map.1146	pub fn get(&self, key: &PropertyKey) -> Option<&Value> {1147		self.0.get(key)1148	}11491150	/// Check if map contains key.1151	pub fn contains_key(&self, key: &PropertyKey) -> bool {1152		self.0.contains_key(key)1153	}11541155	/// Check if map contains key with key validation.1156	fn check_property_key(key: &PropertyKey) -> Result<(), PropertiesError> {1157		if key.is_empty() {1158			return Err(PropertiesError::EmptyPropertyKey);1159		}11601161		for byte in key.as_slice().iter() {1162			let byte = *byte;11631164			if !byte.is_ascii_alphanumeric() && byte != b'_' && byte != b'-' && byte != b'.' {1165				return Err(PropertiesError::InvalidCharacterInPropertyKey);1166			}1167		}11681169		Ok(())1170	}1171}11721173impl<Value> IntoIterator for PropertiesMap<Value> {1174	type Item = (PropertyKey, Value);1175	type IntoIter = <1176		BoundedBTreeMap<1177			PropertyKey,1178			Value,1179			ConstU32<MAX_PROPERTIES_PER_ITEM>1180		> as IntoIterator1181	>::IntoIter;11821183	fn into_iter(self) -> Self::IntoIter {1184		self.0.into_iter()1185	}1186}11871188impl<Value> TrySetProperty for PropertiesMap<Value> {1189	type Value = Value;11901191	fn try_scoped_set(1192		&mut self,1193		scope: PropertyScope,1194		key: PropertyKey,1195		value: Self::Value,1196	) -> Result<(), PropertiesError> {1197		Self::check_property_key(&key)?;11981199		let key = scope.apply(key)?;1200		self.01201			.try_insert(key, value)1202			.map_err(|_| PropertiesError::PropertyLimitReached)?;12031204		Ok(())1205	}1206}12071208/// Alias for property permissions map.1209pub type PropertiesPermissionMap = PropertiesMap<PropertyPermission>;12101211/// Wrapper for properties map with consumed space control.1212#[derive(Encode, Decode, TypeInfo, Clone, PartialEq, MaxEncodedLen)]1213pub struct Properties {1214	map: PropertiesMap<PropertyValue>,1215	consumed_space: u32,1216	space_limit: u32,1217}12181219impl Properties {1220	/// Create new properies container.1221	pub fn new(space_limit: u32) -> Self {1222		Self {1223			map: PropertiesMap::new(),1224			consumed_space: 0,1225			space_limit,1226		}1227	}12281229	/// Remove propery with appropiate key.1230	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<PropertyValue>, PropertiesError> {1231		let value = self.map.remove(key)?;12321233		if let Some(ref value) = value {1234			let value_len = value.len() as u32;1235			self.consumed_space -= value_len;1236		}12371238		Ok(value)1239	}12401241	/// Get property with appropriate key.1242	pub fn get(&self, key: &PropertyKey) -> Option<&PropertyValue> {1243		self.map.get(key)1244	}1245}12461247impl IntoIterator for Properties {1248	type Item = (PropertyKey, PropertyValue);1249	type IntoIter = <PropertiesMap<PropertyValue> as IntoIterator>::IntoIter;12501251	fn into_iter(self) -> Self::IntoIter {1252		self.map.into_iter()1253	}1254}12551256impl TrySetProperty for Properties {1257	type Value = PropertyValue;12581259	fn try_scoped_set(1260		&mut self,1261		scope: PropertyScope,1262		key: PropertyKey,1263		value: Self::Value,1264	) -> Result<(), PropertiesError> {1265		let value_len = value.len();12661267		if self.consumed_space as usize + value_len > self.space_limit as usize1268			&& !cfg!(feature = "runtime-benchmarks")1269		{1270			return Err(PropertiesError::NoSpaceForProperty);1271		}12721273		self.map.try_scoped_set(scope, key, value)?;12741275		self.consumed_space += value_len as u32;12761277		Ok(())1278	}1279}12801281/// Utility struct for using in `StorageMap`.1282pub struct CollectionProperties;12831284impl Get<Properties> for CollectionProperties {1285	fn get() -> Properties {1286		Properties::new(MAX_COLLECTION_PROPERTIES_SIZE)1287	}1288}12891290/// Utility struct for using in `StorageMap`.1291pub struct TokenProperties;12921293impl Get<Properties> for TokenProperties {1294	fn get() -> Properties {1295		Properties::new(MAX_TOKEN_PROPERTIES_SIZE)1296	}1297}12981299// RMRK1300// todo document?1301parameter_types! {1302	#[derive(PartialEq, TypeInfo)]1303	pub const RmrkStringLimit: u32 = 128;1304	#[derive(PartialEq)]1305	pub const RmrkCollectionSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1306	#[derive(PartialEq)]1307	pub const RmrkResourceSymbolLimit: u32 = 10;1308	#[derive(PartialEq)]1309	pub const RmrkBaseSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1310	#[derive(PartialEq)]1311	pub const RmrkKeyLimit: u32 = 32;1312	#[derive(PartialEq)]1313	pub const RmrkValueLimit: u32 = 256;1314	#[derive(PartialEq)]1315	pub const RmrkMaxCollectionsEquippablePerPart: u32 = 100;1316	#[derive(PartialEq)]1317	pub const MaxPropertiesPerTheme: u32 = 5;1318	#[derive(PartialEq)]1319	pub const RmrkPartsLimit: u32 = 25;1320	#[derive(PartialEq)]1321	pub const RmrkMaxPriorities: u32 = 25;1322	#[derive(PartialEq)]1323	pub const MaxResourcesOnMint: u32 = 100;1324}13251326impl From<RmrkCollectionId> for CollectionId {1327	fn from(id: RmrkCollectionId) -> Self {1328		Self(id)1329	}1330}13311332impl From<RmrkNftId> for TokenId {1333	fn from(id: RmrkNftId) -> Self {1334		Self(id)1335	}1336}13371338pub type RmrkCollectionInfo<AccountId> =1339	CollectionInfo<RmrkString, RmrkCollectionSymbol, AccountId>;1340pub type RmrkInstanceInfo<AccountId> = NftInfo<AccountId, Permill, RmrkString>;1341pub type RmrkResourceInfo = ResourceInfo<RmrkString, RmrkBoundedParts>;1342pub type RmrkPropertyInfo = PropertyInfo<RmrkKeyString, RmrkValueString>;1343pub type RmrkBaseInfo<AccountId> = BaseInfo<AccountId, RmrkString>;1344pub type BoundedEquippableCollectionIds =1345	BoundedVec<RmrkCollectionId, RmrkMaxCollectionsEquippablePerPart>;1346pub type RmrkPartType = PartType<RmrkString, BoundedEquippableCollectionIds>;1347pub type RmrkEquippableList = EquippableList<BoundedEquippableCollectionIds>;1348pub type RmrkThemeProperty = ThemeProperty<RmrkString>;1349pub type RmrkTheme = Theme<RmrkString, Vec<RmrkThemeProperty>>;1350pub type RmrkBoundedTheme = Theme<RmrkString, BoundedVec<RmrkThemeProperty, MaxPropertiesPerTheme>>;1351pub type RmrkResourceTypes = ResourceTypes<RmrkString, RmrkBoundedParts>;13521353pub type RmrkBasicResource = BasicResource<RmrkString>;1354pub type RmrkComposableResource = ComposableResource<RmrkString, RmrkBoundedParts>;1355pub type RmrkSlotResource = SlotResource<RmrkString>;13561357pub type RmrkString = BoundedVec<u8, RmrkStringLimit>;1358pub type RmrkCollectionSymbol = BoundedVec<u8, RmrkCollectionSymbolLimit>;1359pub type RmrkBaseSymbol = BoundedVec<u8, RmrkBaseSymbolLimit>;1360pub type RmrkKeyString = BoundedVec<u8, RmrkKeyLimit>;1361pub type RmrkValueString = BoundedVec<u8, RmrkValueLimit>;1362pub type RmrkBoundedResource = BoundedVec<u8, RmrkResourceSymbolLimit>;1363pub type RmrkBoundedParts = BoundedVec<RmrkPartId, RmrkPartsLimit>; // todo make sure it is needed13641365pub type RmrkRpcString = Vec<u8>;1366pub type RmrkThemeName = RmrkRpcString;1367pub type RmrkPropertyKey = RmrkRpcString;
modifiedprimitives/data-structs/src/mapping.rsdiffbeforeafterboth
--- a/primitives/data-structs/src/mapping.rs
+++ b/primitives/data-structs/src/mapping.rs
@@ -1,3 +1,21 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+//! This module contains mapping between different addresses.
+
 use core::marker::PhantomData;
 
 use sp_core::H160;
@@ -5,12 +23,19 @@
 use crate::{CollectionId, TokenId};
 use pallet_evm::account::CrossAccountId;
 
+/// Trait for mapping between token id and some `Address`.
 pub trait TokenAddressMapping<Address> {
+	/// Map token id to `Address`.
 	fn token_to_address(collection: CollectionId, token: TokenId) -> Address;
+
+	/// Map `Address` to token id.
 	fn address_to_token(address: &Address) -> Option<(CollectionId, TokenId)>;
+
+	/// Check is address for token.
 	fn is_token_address(address: &Address) -> bool;
 }
 
+/// Unit struct for mapping token id to/from *Evm address* represented by [`H160`].
 pub struct EvmTokenAddressMapping;
 
 /// 0xf8238ccfff8ed887463fd5e00000000100000002  - collection 1, token 2
@@ -46,6 +71,7 @@
 	}
 }
 
+/// Unit struct for mapping token id to/from [`CrossAccountId`].
 pub struct CrossTokenAddressMapping<A>(PhantomData<A>);
 
 impl<A, C: CrossAccountId<A>> TokenAddressMapping<C> for CrossTokenAddressMapping<A> {
modifiedprimitives/rpc/src/lib.rsdiffbeforeafterboth
--- a/primitives/rpc/src/lib.rs
+++ b/primitives/rpc/src/lib.rs
@@ -28,6 +28,7 @@
 
 sp_api::decl_runtime_apis! {
 	#[api_version(2)]
+	/// Trait for generate rpc.
 	pub trait UniqueApi<CrossAccountId, AccountId> where
 		AccountId: Decode,
 		CrossAccountId: pallet_evm::account::CrossAccountId<AccountId>,
@@ -35,36 +36,57 @@
 		#[changed_in(2)]
 		fn token_owner(collection: CollectionId, token: TokenId) -> Result<CrossAccountId>;
 
+		/// Get number of tokens in collection owned by account.
 		fn account_tokens(collection: CollectionId, account: CrossAccountId) -> Result<Vec<TokenId>>;
+
+		/// Number of existing tokens in collection.
 		fn collection_tokens(collection: CollectionId) -> Result<Vec<TokenId>>;
+
+		/// Check token exist.
 		fn token_exists(collection: CollectionId, token: TokenId) -> Result<bool>;
 
+		/// Get token owner.
 		fn token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>>;
+
+		/// Get real owner of nested token.
 		fn topmost_token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>>;
+
+		/// Get nested tokens for the specified item.
 		fn token_children(collection: CollectionId, token: TokenId) -> Result<Vec<TokenChild>>;
 
+		/// Get collection properties.
 		fn collection_properties(collection: CollectionId, properties: Option<Vec<Vec<u8>>>) -> Result<Vec<Property>>;
 
+		/// Get token properties.
 		fn token_properties(
 			collection: CollectionId,
 			token_id: TokenId,
 			properties: Option<Vec<Vec<u8>>>
 		) -> Result<Vec<Property>>;
 
+		/// Get permissions for token properties.
 		fn property_permissions(
 			collection: CollectionId,
 			properties: Option<Vec<Vec<u8>>>
 		) -> Result<Vec<PropertyKeyPermission>>;
 
+		/// Get token data.
 		fn token_data(
 			collection: CollectionId,
 			token_id: TokenId,
 			keys: Option<Vec<Vec<u8>>>
 		) -> Result<TokenData<CrossAccountId>>;
 
+		/// Total number of tokens in collection.
 		fn total_supply(collection: CollectionId) -> Result<u32>;
+
+		/// Get account balance for collection (sum of tokens pieces).
 		fn account_balance(collection: CollectionId, account: CrossAccountId) -> Result<u32>;
+
+		/// Get account balance for specified token.
 		fn balance(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Result<u128>;
+
+		/// Amount of token pieces allowed to spend from granded account.
 		fn allowance(
 			collection: CollectionId,
 			sender: CrossAccountId,
@@ -72,14 +94,31 @@
 			token: TokenId,
 		) -> Result<u128>;
 
+		/// Get list of collection admins.
 		fn adminlist(collection: CollectionId) -> Result<Vec<CrossAccountId>>;
+
+		/// Get list of users that allowet to mint tikens in collection.
 		fn allowlist(collection: CollectionId) -> Result<Vec<CrossAccountId>>;
+
+		/// Check that user is in allowed list (see [`allowlist`]).
 		fn allowed(collection: CollectionId, user: CrossAccountId) -> Result<bool>;
+
+		/// Last minted token id.
 		fn last_token_id(collection: CollectionId) -> Result<TokenId>;
+
+		/// Get collection by id.
 		fn collection_by_id(collection: CollectionId) -> Result<Option<RpcCollection<AccountId>>>;
+
+		/// Get collection stats.
 		fn collection_stats() -> Result<CollectionStats>;
+
+		/// Get the number of blocks through which sponsorship will be available.
 		fn next_sponsored(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Result<Option<u64>>;
+
+		/// Get effective colletion limits.
 		fn effective_collection_limits(collection_id: CollectionId) -> Result<Option<CollectionLimits>>;
+
+		/// Get total pieces of token.
 		fn total_pieces(collection_id: CollectionId, token_id: TokenId) -> Result<Option<u128>>;
 		fn token_owners(collection: CollectionId, token: TokenId) -> Result<Vec<CrossAccountId>>;
 	}