git.delta.rocks / unique-network / refs/commits / 383b7efb354e

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//! # Common pallet18//!19//! The Common pallet provides functionality for handling collections.20//!21//! ## Overview22//!23//! The Common pallet provides an interface for common collection operations for different collection types24//! (see [CommonCollectionOperations]), as well as a generic dispatcher for these, see [dispatch] module.25//! It also provides this functionality to EVM, see [erc] and [eth] modules.26//!27//! The Common pallet provides functions for:28//!29//! - Setting and approving collection sponsor.30//! - Get\set\delete allow list.31//! - Get\set\delete collection properties.32//! - Get\set\delete collection property permissions.33//! - Get\set\delete token property permissions.34//! - Get\set\delete collection administrators.35//! - Checking access permissions.36//!37//! ### Terminology38//! **Collection sponsor** - For the collection, you can set a sponsor, at whose expense it will39//! be possible to mint tokens.40//!41//! **Allow list** - List of users who have the right to minting tokens.42//!43//! **Collection properties** - Collection properties are simply key-value stores where various44//! metadata can be placed.45//!46//! **Permissions on token properties** - For each property in the token can be set permission47//! to change, see [`PropertyPermission`].48//!49//! **Collection administrator** - For a collection, you can set administrators who have the right50//! to most actions on the collection.5152#![warn(missing_docs)]53#![cfg_attr(not(feature = "std"), no_std)]54extern crate alloc;5556use alloc::boxed::Box;57use core::{58	marker::PhantomData,59	ops::{Deref, DerefMut},60	slice::from_ref,61	unreachable,62};6364use evm_coder::ToLog;65use frame_support::{66	dispatch::{DispatchErrorWithPostInfo, DispatchResultWithPostInfo, Pays, PostDispatchInfo},67	ensure, fail,68	traits::{69		fungible::{Balanced, Debt, Inspect},70		tokens::{Imbalance, Precision, Preservation},71		Get,72	},73	transactional,74};75pub use pallet::*;76use pallet_evm::{account::CrossAccountId, Pallet as PalletEvm};77use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};78use sp_core::H160;79use sp_runtime::{traits::Zero, ArithmeticError, DispatchError, DispatchResult};80use sp_std::vec::Vec;81use sp_weights::Weight;82use up_data_structs::{83	budget::Budget, mapping::TokenAddressMapping, AccessMode, Collection, CollectionId,84	CollectionLimits, CollectionMode, CollectionPermissions,85	CollectionProperties as CollectionPropertiesT, CollectionStats, CreateCollectionData,86	CreateItemData, CreateItemExData, PhantomType, PropertiesError, PropertiesPermissionMap,87	Property, PropertyKey, PropertyKeyPermission, PropertyPermission, PropertyScope, PropertyValue,88	RpcCollection, RpcCollectionFlags, SponsoringRateLimit, SponsorshipState, TokenChild,89	TokenData, TokenId, TokenOwnerError, TokenProperties, TrySetProperty, COLLECTION_ADMINS_LIMIT,90	COLLECTION_NUMBER_LIMIT, CUSTOM_DATA_LIMIT, FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,91	MAX_SPONSOR_TIMEOUT, MAX_TOKEN_OWNERSHIP, MAX_TOKEN_PREFIX_LENGTH,92	NFT_SPONSOR_TRANSFER_TIMEOUT, REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,93};94use up_pov_estimate_rpc::PovInfo;9596#[cfg(feature = "runtime-benchmarks")]97pub mod benchmarking;98pub mod dispatch;99pub mod erc;100pub mod eth;101pub mod helpers;102#[allow(missing_docs)]103pub mod weights;104105use weights::WeightInfo;106107/// Weight info.108pub type SelfWeightOf<T> = <T as Config>::WeightInfo;109110/// Collection handle contains information about collection data and id.111/// Also provides functionality to count consumed gas.112///113/// CollectionHandle is used as a generic wrapper for collections of all types (except native fungible).114/// It allows to perform common operations and queries on any collection type,115/// both completely general for all, as well as their respective implementations of [`CommonCollectionOperations`].116#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]117pub struct CollectionHandle<T: Config> {118	/// Collection id119	pub id: CollectionId,120	collection: Collection<T::AccountId>,121	/// Substrate recorder for counting consumed gas122	pub recorder: SubstrateRecorder<T>,123}124125impl<T: Config> WithRecorder<T> for CollectionHandle<T> {126	fn recorder(&self) -> &SubstrateRecorder<T> {127		&self.recorder128	}129	fn into_recorder(self) -> SubstrateRecorder<T> {130		self.recorder131	}132}133134impl<T: Config> CollectionHandle<T> {135	/// Same as [CollectionHandle::new] but with an explicit gas limit.136	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {137		Self::new_with_recorder(id, SubstrateRecorder::new(gas_limit))138	}139140	/// Same as [CollectionHandle::new] but with an existed [`SubstrateRecorder`].141	pub fn new_with_recorder(id: CollectionId, recorder: SubstrateRecorder<T>) -> Option<Self> {142		<CollectionById<T>>::get(id).map(|collection| Self {143			id,144			collection,145			recorder,146		})147	}148149	/// Retrives collection data from storage and creates collection handle with default parameters.150	/// If collection not found return `None`151	pub fn new(id: CollectionId) -> Option<Self> {152		Self::new_with_gas_limit(id, u64::MAX)153	}154155	/// Same as [`CollectionHandle::new`] but if collection not found [CollectionNotFound](Error::CollectionNotFound) returned.156	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {157		Ok(Self::new(id).ok_or(<Error<T>>::CollectionNotFound)?)158	}159160	/// Consume gas for reading.161	pub fn consume_store_reads(162		&self,163		reads: u64,164	) -> pallet_evm_coder_substrate::execution::Result<()> {165		self.recorder().consume_store_reads(reads)166	}167168	/// Consume gas for writing.169	pub fn consume_store_writes(170		&self,171		writes: u64,172	) -> pallet_evm_coder_substrate::execution::Result<()> {173		self.recorder().consume_store_writes(writes)174	}175176	/// Consume gas for reading and writing.177	pub fn consume_store_reads_and_writes(178		&self,179		reads: u64,180		writes: u64,181	) -> pallet_evm_coder_substrate::execution::Result<()> {182		self.recorder()183			.consume_store_reads_and_writes(reads, writes)184	}185186	/// Save collection to storage.187	pub fn save(&self) -> DispatchResult {188		<CollectionById<T>>::insert(self.id, &self.collection);189		Ok(())190	}191192	/// Set collection sponsor.193	///194	/// Unique collections allows sponsoring for certain actions.195	/// This method allows you to set the sponsor of the collection.196	/// In order for sponsorship to become active, it must be confirmed through [`Self::confirm_sponsorship`].197	pub fn set_sponsor(198		&mut self,199		sender: &T::CrossAccountId,200		sponsor: T::AccountId,201	) -> DispatchResult {202		self.check_is_internal()?;203		self.check_is_owner_or_admin(sender)?;204205		self.collection.sponsorship = SponsorshipState::Unconfirmed(sponsor.clone());206207		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(self.id, sponsor));208		<PalletEvm<T>>::deposit_log(209			erc::CollectionHelpersEvents::CollectionChanged {210				collection_id: eth::collection_id_to_address(self.id),211			}212			.to_log(T::ContractAddress::get()),213		);214215		self.save()216	}217218	/// Force set `sponsor`.219	///220	/// Differs from [`set_sponsor`][`Self::set_sponsor`] in that confirmation221	/// from the `sponsor` is not required.222	///223	/// # Arguments224	///225	/// * `sponsor`: ID of the account of the sponsor-to-be.226	pub fn force_set_sponsor(&mut self, sponsor: T::AccountId) -> DispatchResult {227		self.check_is_internal()?;228229		self.collection.sponsorship = SponsorshipState::Confirmed(sponsor.clone());230231		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(self.id, sponsor.clone()));232		<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(self.id, sponsor));233		<PalletEvm<T>>::deposit_log(234			erc::CollectionHelpersEvents::CollectionChanged {235				collection_id: eth::collection_id_to_address(self.id),236			}237			.to_log(T::ContractAddress::get()),238		);239240		self.save()241	}242243	/// Confirm sponsorship244	///245	/// In order for the sponsorship to become active, the user set as the sponsor must confirm their participation.246	/// Before confirming sponsorship, the user must be specified as the sponsor of the collection via [`Self::set_sponsor`].247	pub fn confirm_sponsorship(&mut self, sender: &T::AccountId) -> DispatchResult {248		self.check_is_internal()?;249		ensure!(250			self.collection.sponsorship.pending_sponsor() == Some(sender),251			Error::<T>::ConfirmSponsorshipFail252		);253254		self.collection.sponsorship = SponsorshipState::Confirmed(sender.clone());255256		<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(self.id, sender.clone()));257		<PalletEvm<T>>::deposit_log(258			erc::CollectionHelpersEvents::CollectionChanged {259				collection_id: eth::collection_id_to_address(self.id),260			}261			.to_log(T::ContractAddress::get()),262		);263264		self.save()265	}266267	/// Remove collection sponsor.268	pub fn remove_sponsor(&mut self, sender: &T::CrossAccountId) -> DispatchResult {269		self.check_is_internal()?;270		self.check_is_owner_or_admin(sender)?;271272		self.collection.sponsorship = SponsorshipState::Disabled;273274		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(self.id));275		<PalletEvm<T>>::deposit_log(276			erc::CollectionHelpersEvents::CollectionChanged {277				collection_id: eth::collection_id_to_address(self.id),278			}279			.to_log(T::ContractAddress::get()),280		);281		self.save()282	}283284	/// Force remove `sponsor`.285	///286	/// Differs from `remove_sponsor` in that287	/// it doesn't require consent from the `owner` of the collection.288	pub fn force_remove_sponsor(&mut self) -> DispatchResult {289		self.check_is_internal()?;290291		self.collection.sponsorship = SponsorshipState::Disabled;292293		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(self.id));294		<PalletEvm<T>>::deposit_log(295			erc::CollectionHelpersEvents::CollectionChanged {296				collection_id: eth::collection_id_to_address(self.id),297			}298			.to_log(T::ContractAddress::get()),299		);300		self.save()301	}302303	/// Checks that the collection was created with, and must be operated upon through **Unique API**.304	/// Now check only the `external` flag and if it's **true**, then return [`Error::CollectionIsExternal`] error.305	pub fn check_is_internal(&self) -> DispatchResult {306		if self.flags.external {307			return Err(<Error<T>>::CollectionIsExternal)?;308		}309310		Ok(())311	}312313	/// Checks that the collection was created with, and must be operated upon through an **assimilated API**.314	/// Now check only the `external` flag and if it's **false**, then return [`Error::CollectionIsInternal`] error.315	pub fn check_is_external(&self) -> DispatchResult {316		if !self.flags.external {317			return Err(<Error<T>>::CollectionIsInternal)?;318		}319320		Ok(())321	}322}323324impl<T: Config> Deref for CollectionHandle<T> {325	type Target = Collection<T::AccountId>;326327	fn deref(&self) -> &Self::Target {328		&self.collection329	}330}331332impl<T: Config> DerefMut for CollectionHandle<T> {333	fn deref_mut(&mut self) -> &mut Self::Target {334		&mut self.collection335	}336}337338impl<T: Config> CollectionHandle<T> {339	/// Checks if the `user` is the owner of the collection.340	pub fn check_is_owner(&self, user: &T::CrossAccountId) -> DispatchResult {341		ensure!(*user.as_sub() == self.owner, <Error<T>>::NoPermission);342		Ok(())343	}344345	/// Returns **true** if the `user` is the owner or administrator of the collection.346	pub fn is_owner_or_admin(&self, user: &T::CrossAccountId) -> bool {347		*user.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, user))348	}349350	/// Checks if the `user` is the owner or administrator of the collection.351	pub fn check_is_owner_or_admin(&self, user: &T::CrossAccountId) -> DispatchResult {352		ensure!(self.is_owner_or_admin(user), <Error<T>>::NoPermission);353		Ok(())354	}355356	/// Returns **true** if357	/// * the `user`is a collection owner or admin358	/// * the collection limits allow the owner/admins to transfer/burn any collection token359	pub fn ignores_token_restrictions(&self, user: &T::CrossAccountId) -> bool {360		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)361	}362363	/// Return **true** if `user` does not have enough token parts, and he can ignore such restrictions.364	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> bool {365		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)366	}367368	/// Checks if the user is in the allow list. If not [Error::AddressNotInAllowlist] returns.369	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {370		ensure!(371			<Allowlist<T>>::get((self.id, user)),372			<Error<T>>::AddressNotInAllowlist373		);374		Ok(())375	}376377	/// Changes collection owner to another account378	/// #### Store read/writes379	/// 1 writes380	pub fn change_owner(381		&mut self,382		caller: T::CrossAccountId,383		new_owner: T::CrossAccountId,384	) -> DispatchResult {385		self.check_is_internal()?;386		self.check_is_owner(&caller)?;387		self.collection.owner = new_owner.as_sub().clone();388389		<Pallet<T>>::deposit_event(Event::<T>::CollectionOwnerChanged(390			self.id,391			new_owner.as_sub().clone(),392		));393		<PalletEvm<T>>::deposit_log(394			erc::CollectionHelpersEvents::CollectionChanged {395				collection_id: eth::collection_id_to_address(self.id),396			}397			.to_log(T::ContractAddress::get()),398		);399400		self.save()401	}402}403404#[frame_support::pallet]405pub mod pallet {406407	use dispatch::CollectionDispatch;408	use frame_support::{409		pallet_prelude::*, storage::Key, traits::StorageVersion, Blake2_128Concat,410	};411	use scale_info::TypeInfo;412	use up_data_structs::{mapping::TokenAddressMapping, TokenId};413	use weights::WeightInfo;414415	use super::*;416417	#[pallet::config]418	pub trait Config:419		frame_system::Config + pallet_evm_coder_substrate::Config + pallet_evm::Config + TypeInfo420	{421		/// Weight information for functions of this pallet.422		type WeightInfo: WeightInfo;423424		/// Events compatible with [`frame_system::Config::Event`].425		type RuntimeEvent: IsType<<Self as frame_system::Config>::RuntimeEvent> + From<Event<Self>>;426427		/// Handler of accounts and payment.428		type Currency: Balanced<Self::AccountId> + Inspect<Self::AccountId>;429430		/// Set price to create a collection.431		#[pallet::constant]432		type CollectionCreationPrice: Get<433			<<Self as Config>::Currency as Inspect<Self::AccountId>>::Balance,434		>;435436		/// Dispatcher of operations on collections.437		type CollectionDispatch: CollectionDispatch<Self>;438439		/// Account which holds the chain's treasury.440		type TreasuryAccountId: Get<Self::AccountId>;441442		/// Address under which the CollectionHelper contract would be available.443		#[pallet::constant]444		type ContractAddress: Get<H160>;445446		/// Mapper for token addresses to Ethereum addresses.447		type EvmTokenAddressMapping: TokenAddressMapping<H160>;448449		/// Mapper for token addresses to [`CrossAccountId`].450		type CrossTokenAddressMapping: TokenAddressMapping<Self::CrossAccountId>;451	}452453	const STORAGE_VERSION: StorageVersion = StorageVersion::new(1);454	/// Collection id for native fungible collction.455	pub const NATIVE_FUNGIBLE_COLLECTION_ID: CollectionId = CollectionId(0);456457	#[pallet::pallet]458	#[pallet::storage_version(STORAGE_VERSION)]459	pub struct Pallet<T>(_);460461	#[pallet::extra_constants]462	impl<T: Config> Pallet<T> {463		/// Maximum admins per collection.464		pub fn collection_admins_limit() -> u32 {465			COLLECTION_ADMINS_LIMIT466		}467	}468469	#[pallet::genesis_config]470	pub struct GenesisConfig<T>(PhantomData<T>);471472	impl<T: Config> Default for GenesisConfig<T> {473		fn default() -> Self {474			Self(Default::default())475		}476	}477478	#[pallet::genesis_build]479	impl<T: Config> BuildGenesisConfig for GenesisConfig<T> {480		fn build(&self) {481			StorageVersion::new(1).put::<Pallet<T>>();482		}483	}484485	impl<T: Config> Pallet<T> {486		/// Helper function that handles deposit events487		pub fn deposit_event(event: Event<T>) {488			let event = <T as Config>::RuntimeEvent::from(event);489			let event = event.into();490			<frame_system::Pallet<T>>::deposit_event(event)491		}492	}493494	#[pallet::event]495	pub enum Event<T: Config> {496		/// New collection was created497		CollectionCreated(498			/// Globally unique identifier of newly created collection.499			CollectionId,500			/// [`CollectionMode`] converted into _u8_.501			u8,502			/// Collection owner.503			T::AccountId,504		),505506		/// New collection was destroyed507		CollectionDestroyed(508			/// Globally unique identifier of collection.509			CollectionId,510		),511512		/// New item was created.513		ItemCreated(514			/// Id of the collection where item was created.515			CollectionId,516			/// Id of an item. Unique within the collection.517			TokenId,518			/// Owner of newly created item519			T::CrossAccountId,520			/// Always 1 for NFT521			u128,522		),523524		/// Collection item was burned.525		ItemDestroyed(526			/// Id of the collection where item was destroyed.527			CollectionId,528			/// Identifier of burned NFT.529			TokenId,530			/// Which user has destroyed its tokens.531			T::CrossAccountId,532			/// Amount of token pieces destroed. Always 1 for NFT.533			u128,534		),535536		/// Item was transferred537		Transfer(538			/// Id of collection to which item is belong.539			CollectionId,540			/// Id of an item.541			TokenId,542			/// Original owner of item.543			T::CrossAccountId,544			/// New owner of item.545			T::CrossAccountId,546			/// Amount of token pieces transfered. Always 1 for NFT.547			u128,548		),549550		/// Amount pieces of token owned by `sender` was approved for `spender`.551		Approved(552			/// Id of collection to which item is belong.553			CollectionId,554			/// Id of an item.555			TokenId,556			/// Original owner of item.557			T::CrossAccountId,558			/// Id for which the approval was granted.559			T::CrossAccountId,560			/// Amount of token pieces transfered. Always 1 for NFT.561			u128,562		),563564		/// A `sender` approves operations on all owned tokens for `spender`.565		ApprovedForAll(566			/// Id of collection to which item is belong.567			CollectionId,568			/// Owner of a wallet.569			T::CrossAccountId,570			/// Id for which operator status was granted or rewoked.571			T::CrossAccountId,572			/// Is operator status granted or revoked?573			bool,574		),575576		/// The colletion property has been added or edited.577		CollectionPropertySet(578			/// Id of collection to which property has been set.579			CollectionId,580			/// The property that was set.581			PropertyKey,582		),583584		/// The property has been deleted.585		CollectionPropertyDeleted(586			/// Id of collection to which property has been deleted.587			CollectionId,588			/// The property that was deleted.589			PropertyKey,590		),591592		/// The token property has been added or edited.593		TokenPropertySet(594			/// Identifier of the collection whose token has the property set.595			CollectionId,596			/// The token for which the property was set.597			TokenId,598			/// The property that was set.599			PropertyKey,600		),601602		/// The token property has been deleted.603		TokenPropertyDeleted(604			/// Identifier of the collection whose token has the property deleted.605			CollectionId,606			/// The token for which the property was deleted.607			TokenId,608			/// The property that was deleted.609			PropertyKey,610		),611612		/// The token property permission of a collection has been set.613		PropertyPermissionSet(614			/// ID of collection to which property permission has been set.615			CollectionId,616			/// The property permission that was set.617			PropertyKey,618		),619620		/// Address was added to the allow list.621		AllowListAddressAdded(622			/// ID of the affected collection.623			CollectionId,624			/// Address of the added account.625			T::CrossAccountId,626		),627628		/// Address was removed from the allow list.629		AllowListAddressRemoved(630			/// ID of the affected collection.631			CollectionId,632			/// Address of the removed account.633			T::CrossAccountId,634		),635636		/// Collection admin was added.637		CollectionAdminAdded(638			/// ID of the affected collection.639			CollectionId,640			/// Admin address.641			T::CrossAccountId,642		),643644		/// Collection admin was removed.645		CollectionAdminRemoved(646			/// ID of the affected collection.647			CollectionId,648			/// Removed admin address.649			T::CrossAccountId,650		),651652		/// Collection limits were set.653		CollectionLimitSet(654			/// ID of the affected collection.655			CollectionId,656		),657658		/// Collection owned was changed.659		CollectionOwnerChanged(660			/// ID of the affected collection.661			CollectionId,662			/// New owner address.663			T::AccountId,664		),665666		/// Collection permissions were set.667		CollectionPermissionSet(668			/// ID of the affected collection.669			CollectionId,670		),671672		/// Collection sponsor was set.673		CollectionSponsorSet(674			/// ID of the affected collection.675			CollectionId,676			/// New sponsor address.677			T::AccountId,678		),679680		/// New sponsor was confirm.681		SponsorshipConfirmed(682			/// ID of the affected collection.683			CollectionId,684			/// New sponsor address.685			T::AccountId,686		),687688		/// Collection sponsor was removed.689		CollectionSponsorRemoved(690			/// ID of the affected collection.691			CollectionId,692		),693	}694695	#[pallet::error]696	pub enum Error<T> {697		/// This collection does not exist.698		CollectionNotFound,699		/// Sender parameter and item owner must be equal.700		MustBeTokenOwner,701		/// No permission to perform action702		NoPermission,703		/// Destroying only empty collections is allowed704		CantDestroyNotEmptyCollection,705		/// Collection is not in mint mode.706		PublicMintingNotAllowed,707		/// Address is not in allow list.708		AddressNotInAllowlist,709710		/// Collection name can not be longer than 63 char.711		CollectionNameLimitExceeded,712		/// Collection description can not be longer than 255 char.713		CollectionDescriptionLimitExceeded,714		/// Token prefix can not be longer than 15 char.715		CollectionTokenPrefixLimitExceeded,716		/// Total collections bound exceeded.717		TotalCollectionsLimitExceeded,718		/// Exceeded max admin count719		CollectionAdminCountExceeded,720		/// Collection limit bounds per collection exceeded721		CollectionLimitBoundsExceeded,722		/// Tried to enable permissions which are only permitted to be disabled723		OwnerPermissionsCantBeReverted,724		/// Collection settings not allowing items transferring725		TransferNotAllowed,726		/// Account token limit exceeded per collection727		AccountTokenLimitExceeded,728		/// Collection token limit exceeded729		CollectionTokenLimitExceeded,730		/// Metadata flag frozen731		MetadataFlagFrozen,732733		/// Item does not exist734		TokenNotFound,735		/// Item is balance not enough736		TokenValueTooLow,737		/// Requested value is more than the approved738		ApprovedValueTooLow,739		/// Tried to approve more than owned740		CantApproveMoreThanOwned,741		/// Only spending from eth mirror could be approved742		AddressIsNotEthMirror,743744		/// Can't transfer tokens to ethereum zero address745		AddressIsZero,746747		/// The operation is not supported748		UnsupportedOperation,749750		/// Insufficient funds to perform an action751		NotSufficientFounds,752753		/// User does not satisfy the nesting rule754		UserIsNotAllowedToNest,755		/// Only tokens from specific collections may nest tokens under this one756		SourceCollectionIsNotAllowedToNest,757758		/// Tried to store more data than allowed in collection field759		CollectionFieldSizeExceeded,760761		/// Tried to store more property data than allowed762		NoSpaceForProperty,763764		/// Tried to store more property keys than allowed765		PropertyLimitReached,766767		/// Property key is too long768		PropertyKeyIsTooLong,769770		/// Only ASCII letters, digits, and symbols `_`, `-`, and `.` are allowed771		InvalidCharacterInPropertyKey,772773		/// Empty property keys are forbidden774		EmptyPropertyKey,775776		/// Tried to access an external collection with an internal API777		CollectionIsExternal,778779		/// Tried to access an internal collection with an external API780		CollectionIsInternal,781782		/// This address is not set as sponsor, use setCollectionSponsor first.783		ConfirmSponsorshipFail,784785		/// The user is not an administrator.786		UserIsNotCollectionAdmin,787788		/// Fungible tokens hold no ID, and the default value of TokenId for a fungible collection is 0.789		FungibleItemsHaveNoId,790791		/// Not Fungible item data used to mint in Fungible collection.792		NotFungibleDataUsedToMintFungibleCollectionToken,793	}794795	/// Storage of the count of created collections. Essentially contains the last collection ID.796	#[pallet::storage]797	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;798799	/// Storage of the count of deleted collections.800	#[pallet::storage]801	pub type DestroyedCollectionCount<T> =802		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;803804	/// Storage of collection info.805	#[pallet::storage]806	pub type CollectionById<T> = StorageMap<807		Hasher = Blake2_128Concat,808		Key = CollectionId,809		Value = Collection<<T as frame_system::Config>::AccountId>,810		QueryKind = OptionQuery,811	>;812813	/// Storage of collection properties.814	#[pallet::storage]815	#[pallet::getter(fn collection_properties)]816	pub type CollectionProperties<T> = StorageMap<817		Hasher = Blake2_128Concat,818		Key = CollectionId,819		Value = CollectionPropertiesT,820		QueryKind = ValueQuery,821	>;822823	/// Storage of token property permissions of a collection.824	#[pallet::storage]825	#[pallet::getter(fn property_permissions)]826	pub type CollectionPropertyPermissions<T> = StorageMap<827		Hasher = Blake2_128Concat,828		Key = CollectionId,829		Value = PropertiesPermissionMap,830		QueryKind = ValueQuery,831	>;832833	/// Storage of the amount of collection admins.834	#[pallet::storage]835	pub type AdminAmount<T> = StorageMap<836		Hasher = Blake2_128Concat,837		Key = CollectionId,838		Value = u32,839		QueryKind = ValueQuery,840	>;841842	/// List of collection admins.843	#[pallet::storage]844	pub type IsAdmin<T: Config> = StorageNMap<845		Key = (846			Key<Blake2_128Concat, CollectionId>,847			Key<Blake2_128Concat, T::CrossAccountId>,848		),849		Value = bool,850		QueryKind = ValueQuery,851	>;852853	/// Allowlisted collection users.854	#[pallet::storage]855	pub type Allowlist<T: Config> = StorageNMap<856		Key = (857			Key<Blake2_128Concat, CollectionId>,858			Key<Blake2_128Concat, T::CrossAccountId>,859		),860		Value = bool,861		QueryKind = ValueQuery,862	>;863864	/// Not used by code, exists only to provide some types to metadata.865	#[pallet::storage]866	pub type DummyStorageValue<T: Config> = StorageValue<867		Value = (868			CollectionStats,869			CollectionId,870			TokenId,871			TokenChild,872			PhantomType<(873				TokenData<T::CrossAccountId>,874				RpcCollection<T::AccountId>,875				// PoV Estimate Info876				PovInfo,877			)>,878		),879		QueryKind = OptionQuery,880	>;881}882883enum LazyValueState<'a, T> {884	Pending(Box<dyn FnOnce() -> T + 'a>),885	InProgress,886	Computed(T),887}888889/// Value representation with delayed initialization time.890pub struct LazyValue<'a, T> {891	state: LazyValueState<'a, T>,892}893894impl<'a, T> LazyValue<'a, T> {895	/// Create a new LazyValue.896	pub fn new(f: impl FnOnce() -> T + 'a) -> Self {897		Self {898			state: LazyValueState::Pending(Box::new(f)),899		}900	}901902	/// Get the value. If it is called the first time, the value will be initialized.903	pub fn value(&mut self) -> &T {904		self.force_value();905		self.value_mut()906	}907908	/// Get the value. If it is called the first time, the value will be initialized.909	pub fn value_mut(&mut self) -> &mut T {910		self.force_value();911912		if let LazyValueState::Computed(value) = &mut self.state {913			value914		} else {915			unreachable!()916		}917	}918919	fn into_inner(mut self) -> T {920		self.force_value();921		if let LazyValueState::Computed(value) = self.state {922			value923		} else {924			unreachable!()925		}926	}927928	/// Is value initialized?929	pub fn has_value(&self) -> bool {930		matches!(self.state, LazyValueState::Computed(_))931	}932933	fn force_value(&mut self) {934		use LazyValueState::*;935936		if self.has_value() {937			return;938		}939940		match sp_std::mem::replace(&mut self.state, InProgress) {941			Pending(f) => self.state = Computed(f()),942			_ => panic!("recursion isn't supported"),943		}944	}945}946947fn check_token_permissions<T: Config>(948	collection_admin_permitted: bool,949	token_owner_permitted: bool,950	is_collection_admin: &mut LazyValue<bool>,951	is_token_owner: &mut LazyValue<Result<bool, DispatchError>>,952	is_token_exist: &mut LazyValue<bool>,953) -> DispatchResult {954	if !(collection_admin_permitted && *is_collection_admin.value()955		|| token_owner_permitted && (*is_token_owner.value())?)956	{957		fail!(<Error<T>>::NoPermission);958	}959960	let token_exist_due_to_owner_check_success =961		is_token_owner.has_value() && (*is_token_owner.value())?;962963	// If the token owner check has occurred and succeeded,964	// we know the token exists (otherwise, the owner check must fail).965	if !token_exist_due_to_owner_check_success {966		// If the token owner check didn't occur,967		// we must check the token's existence ourselves.968		if !is_token_exist.value() {969			fail!(<Error<T>>::TokenNotFound);970		}971	}972973	Ok(())974}975976impl<T: Config> Pallet<T> {977	/// Enshure that receiver address is correct.978	///979	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens.980	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {981		ensure!(982			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,983			<Error<T>>::AddressIsZero984		);985		Ok(())986	}987988	/// Get a vector of collection admins.989	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {990		<IsAdmin<T>>::iter_prefix((collection,))991			.map(|(a, _)| a)992			.collect()993	}994995	/// Get a vector of users allowed to mint tokens.996	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {997		<Allowlist<T>>::iter_prefix((collection,))998			.map(|(a, _)| a)999			.collect()1000	}10011002	/// Is `user` allowed to mint token in `collection`.1003	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {1004		<Allowlist<T>>::get((collection, user))1005	}10061007	/// Get statistics of collections.1008	pub fn collection_stats() -> CollectionStats {1009		let created = <CreatedCollectionCount<T>>::get();1010		let destroyed = <DestroyedCollectionCount<T>>::get();1011		CollectionStats {1012			created: created.0,1013			destroyed: destroyed.0,1014			alive: created.0 - destroyed.0,1015		}1016	}10171018	/// Get the effective limits for the collection.1019	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {1020		let collection = <CollectionById<T>>::get(collection)?;1021		let limits = collection.limits;1022		let effective_limits = CollectionLimits {1023			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),1024			sponsored_data_size: Some(limits.sponsored_data_size()),1025			sponsored_data_rate_limit: Some(1026				limits1027					.sponsored_data_rate_limit1028					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),1029			),1030			token_limit: Some(limits.token_limit()),1031			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(1032				match collection.mode {1033					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1034					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1035					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1036				},1037			)),1038			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),1039			owner_can_transfer: Some(limits.owner_can_transfer()),1040			owner_can_destroy: Some(limits.owner_can_destroy()),1041			transfers_enabled: Some(limits.transfers_enabled()),1042		};10431044		Some(effective_limits)1045	}10461047	/// Returns information about the `collection` adapted for rpc.1048	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {1049		let Collection {1050			name,1051			description,1052			owner,1053			mode,1054			token_prefix,1055			sponsorship,1056			limits,1057			permissions,1058			flags,1059		} = <CollectionById<T>>::get(collection)?;10601061		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)1062			.into_iter()1063			.map(|(key, permission)| PropertyKeyPermission { key, permission })1064			.collect();10651066		let properties = <CollectionProperties<T>>::get(collection)1067			.into_iter()1068			.map(|(key, value)| Property { key, value })1069			.collect();10701071		let permissions = CollectionPermissions {1072			access: Some(permissions.access()),1073			mint_mode: Some(permissions.mint_mode()),1074			nesting: Some(permissions.nesting().clone()),1075		};10761077		Some(RpcCollection {1078			name: name.into_inner(),1079			description: description.into_inner(),1080			owner,1081			mode,1082			token_prefix: token_prefix.into_inner(),1083			sponsorship,1084			limits,1085			permissions,1086			token_property_permissions,1087			properties,1088			read_only: flags.external,10891090			flags: RpcCollectionFlags {1091				erc721metadata: flags.erc721metadata,1092			},1093		})1094	}1095}10961097macro_rules! limit_default {1098	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1099		$(1100			if let Some($new) = $new.$field {1101				let $old = $old.$field($($arg)?);1102				let _ = $new;1103				let _ = $old;1104				$check1105			} else {1106				$new.$field = $old.$field1107			}1108		)*1109	}};1110}1111macro_rules! limit_default_clone {1112	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1113		$(1114			if let Some($new) = $new.$field.clone() {1115				let $old = $old.$field($($arg)?);1116				let _ = $new;1117				let _ = $old;1118				$check1119			} else {1120				$new.$field = $old.$field.clone()1121			}1122		)*1123	}};1124}11251126impl<T: Config> Pallet<T> {1127	/// Create new collection.1128	///1129	/// * `owner` - The owner of the collection.1130	/// * `payer` - If set, the user that will pay a deposit for the collection creation.1131	/// * `data` - Description of the created collection.1132	pub fn init_collection(1133		owner: T::CrossAccountId,1134		payer: Option<T::CrossAccountId>,1135		data: CreateCollectionData<T::CrossAccountId>,1136	) -> Result<CollectionId, DispatchError> {1137		ensure!(data.flags.is_allowed_for_user(), <Error<T>>::NoPermission);11381139		// Take a (non-refundable) deposit of collection creation1140		if let Some(payer) = payer {1141			let mut imbalance = <Debt<T::AccountId, <T as Config>::Currency>>::zero();1142			imbalance.subsume(<T as Config>::Currency::deposit(1143				&T::TreasuryAccountId::get(),1144				T::CollectionCreationPrice::get(),1145				Precision::Exact,1146			)?);1147			let credit =1148				<T as Config>::Currency::settle(payer.as_sub(), imbalance, Preservation::Preserve)1149					.map_err(|_| Error::<T>::NotSufficientFounds)?;11501151			debug_assert!(credit.peek().is_zero())1152		}11531154		Self::init_collection_internal(owner, data)1155	}11561157	fn init_collection_internal(1158		owner: T::CrossAccountId,1159		data: CreateCollectionData<T::CrossAccountId>,1160	) -> Result<CollectionId, DispatchError> {1161		{1162			ensure!(1163				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,1164				Error::<T>::CollectionTokenPrefixLimitExceeded1165			);1166		}11671168		let created_count = <CreatedCollectionCount<T>>::get()1169			.01170			.checked_add(1)1171			.ok_or(ArithmeticError::Overflow)?;1172		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;1173		let id = CollectionId(created_count);11741175		// bound Total number of collections1176		ensure!(1177			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,1178			<Error<T>>::TotalCollectionsLimitExceeded1179		);11801181		// =========11821183		let collection = Collection {1184			owner: owner.as_sub().clone(),1185			name: data.name,1186			mode: data.mode.clone(),1187			description: data.description,1188			token_prefix: data.token_prefix,1189			sponsorship: data1190				.pending_sponsor1191				.map(|sponsor| SponsorshipState::Unconfirmed(sponsor.as_sub().clone()))1192				.unwrap_or_default(),1193			limits: data1194				.limits1195				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))1196				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,1197			permissions: data1198				.permissions1199				.map(|permissions| {1200					Self::clamp_permissions(data.mode.clone(), &Default::default(), permissions)1201				})1202				.unwrap_or_else(|| Ok(CollectionPermissions::default()))?,1203			flags: data.flags,1204		};12051206		let mut collection_properties = CollectionPropertiesT::new();1207		collection_properties1208			.try_set_from_iter(data.properties.into_iter())1209			.map_err(<Error<T>>::from)?;12101211		CollectionProperties::<T>::insert(id, collection_properties);12121213		let mut token_props_permissions = PropertiesPermissionMap::new();1214		token_props_permissions1215			.try_set_from_iter(data.token_property_permissions.into_iter())1216			.map_err(<Error<T>>::from)?;12171218		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);12191220		let mut admin_amount = 0u32;1221		for admin in data.admin_list.iter() {1222			if !<IsAdmin<T>>::get((id, admin)) {1223				<IsAdmin<T>>::insert((id, admin), true);1224				admin_amount = admin_amount1225					.checked_add(1)1226					.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1227			}1228		}1229		ensure!(1230			admin_amount <= Self::collection_admins_limit(),1231			<Error<T>>::CollectionAdminCountExceeded,1232		);1233		<AdminAmount<T>>::insert(id, admin_amount);12341235		<CreatedCollectionCount<T>>::put(created_count);1236		<Pallet<T>>::deposit_event(Event::CollectionCreated(1237			id,1238			data.mode.id(),1239			owner.as_sub().clone(),1240		));1241		<PalletEvm<T>>::deposit_log(1242			erc::CollectionHelpersEvents::CollectionCreated {1243				owner: *owner.as_eth(),1244				collection_id: eth::collection_id_to_address(id),1245			}1246			.to_log(T::ContractAddress::get()),1247		);1248		<CollectionById<T>>::insert(id, collection);1249		Ok(id)1250	}12511252	/// Destroy collection.1253	///1254	/// * `collection` - Collection handler.1255	/// * `sender` - The owner or administrator of the collection.1256	pub fn destroy_collection(1257		collection: CollectionHandle<T>,1258		sender: &T::CrossAccountId,1259	) -> DispatchResult {1260		ensure!(1261			collection.limits.owner_can_destroy(),1262			<Error<T>>::NoPermission,1263		);1264		collection.check_is_owner(sender)?;12651266		let destroyed_collections = <DestroyedCollectionCount<T>>::get()1267			.01268			.checked_add(1)1269			.ok_or(ArithmeticError::Overflow)?;12701271		// =========12721273		<DestroyedCollectionCount<T>>::put(destroyed_collections);1274		<CollectionById<T>>::remove(collection.id);1275		<AdminAmount<T>>::remove(collection.id);1276		let _ = <IsAdmin<T>>::clear_prefix((collection.id,), u32::MAX, None);1277		let _ = <Allowlist<T>>::clear_prefix((collection.id,), u32::MAX, None);1278		<CollectionProperties<T>>::remove(collection.id);12791280		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));12811282		<PalletEvm<T>>::deposit_log(1283			erc::CollectionHelpersEvents::CollectionDestroyed {1284				collection_id: eth::collection_id_to_address(collection.id),1285			}1286			.to_log(T::ContractAddress::get()),1287		);1288		Ok(())1289	}12901291	/// This function sets or removes a collection properties according to1292	/// `properties_updates` contents:1293	/// * sets a property under the <key> with the value provided `(<key>, Some(<value>))`1294	/// * removes a property under the <key> if the value is `None` `(<key>, None)`.1295	///1296	/// This function fires an event for each property change.1297	/// In case of an error, all the changes (including the events) will be reverted1298	/// since the function is transactional.1299	#[transactional]1300	fn modify_collection_properties(1301		collection: &CollectionHandle<T>,1302		sender: &T::CrossAccountId,1303		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,1304	) -> DispatchResult {1305		collection.check_is_owner_or_admin(sender)?;13061307		let mut stored_properties = <CollectionProperties<T>>::get(collection.id);13081309		for (key, value) in properties_updates {1310			match value {1311				Some(value) => {1312					stored_properties1313						.try_set(key.clone(), value)1314						.map_err(<Error<T>>::from)?;13151316					Self::deposit_event(Event::CollectionPropertySet(collection.id, key));1317					<PalletEvm<T>>::deposit_log(1318						erc::CollectionHelpersEvents::CollectionChanged {1319							collection_id: eth::collection_id_to_address(collection.id),1320						}1321						.to_log(T::ContractAddress::get()),1322					);1323				}1324				None => {1325					stored_properties.remove(&key).map_err(<Error<T>>::from)?;13261327					Self::deposit_event(Event::CollectionPropertyDeleted(collection.id, key));1328					<PalletEvm<T>>::deposit_log(1329						erc::CollectionHelpersEvents::CollectionChanged {1330							collection_id: eth::collection_id_to_address(collection.id),1331						}1332						.to_log(T::ContractAddress::get()),1333					);1334				}1335			}1336		}13371338		<CollectionProperties<T>>::set(collection.id, stored_properties);13391340		Ok(())1341	}13421343	/// Sets or unsets the approval of a given operator.1344	///1345	/// The `operator` is allowed to transfer all token pieces of the `owner` on their behalf.1346	/// - `owner`: Token owner1347	/// - `operator`: Operator1348	/// - `approve`: Should operator status be granted or revoked?1349	pub fn set_allowance_for_all(1350		collection: &CollectionHandle<T>,1351		owner: &T::CrossAccountId,1352		operator: &T::CrossAccountId,1353		approve: bool,1354		set_allowance: impl FnOnce(),1355		log: evm_coder::ethereum::Log,1356	) -> DispatchResult {1357		if collection.permissions.access() == AccessMode::AllowList {1358			collection.check_allowlist(owner)?;1359			collection.check_allowlist(operator)?;1360		}13611362		Self::ensure_correct_receiver(operator)?;13631364		set_allowance();13651366		<PalletEvm<T>>::deposit_log(log);1367		Self::deposit_event(Event::ApprovedForAll(1368			collection.id,1369			owner.clone(),1370			operator.clone(),1371			approve,1372		));1373		Ok(())1374	}13751376	/// Set collection property.1377	///1378	/// * `collection` - Collection handler.1379	/// * `sender` - The owner or administrator of the collection.1380	/// * `property` - The property to set.1381	pub fn set_collection_property(1382		collection: &CollectionHandle<T>,1383		sender: &T::CrossAccountId,1384		property: Property,1385	) -> DispatchResult {1386		Self::set_collection_properties(collection, sender, [property].into_iter())1387	}13881389	/// Set a scoped collection property, where the scope is a special prefix1390	/// prohibiting a user access to change the property directly.1391	///1392	/// * `collection_id` - ID of the collection for which the property is being set.1393	/// * `scope` - Property scope.1394	/// * `property` - The property to set.1395	pub fn set_scoped_collection_property(1396		collection_id: CollectionId,1397		scope: PropertyScope,1398		property: Property,1399	) -> DispatchResult {1400		CollectionProperties::<T>::try_mutate(collection_id, |properties| {1401			properties.try_scoped_set(scope, property.key, property.value)1402		})1403		.map_err(<Error<T>>::from)?;14041405		Ok(())1406	}14071408	/// Set scoped collection properties, where the scope is a special prefix1409	/// prohibiting a user access to change the properties directly.1410	///1411	/// * `collection_id` - ID of the collection for which the properties is being set.1412	/// * `scope` - Property scope.1413	/// * `properties` - The properties to set.1414	pub fn set_scoped_collection_properties(1415		collection_id: CollectionId,1416		scope: PropertyScope,1417		properties: impl Iterator<Item = Property>,1418	) -> DispatchResult {1419		CollectionProperties::<T>::try_mutate(collection_id, |stored_properties| {1420			stored_properties.try_scoped_set_from_iter(scope, properties)1421		})1422		.map_err(<Error<T>>::from)?;14231424		Ok(())1425	}14261427	/// Set collection properties.1428	///1429	/// * `collection` - Collection handler.1430	/// * `sender` - The owner or administrator of the collection.1431	/// * `properties` - The properties to set.1432	pub fn set_collection_properties(1433		collection: &CollectionHandle<T>,1434		sender: &T::CrossAccountId,1435		properties: impl Iterator<Item = Property>,1436	) -> DispatchResult {1437		Self::modify_collection_properties(1438			collection,1439			sender,1440			properties.map(|property| (property.key, Some(property.value))),1441		)1442	}14431444	/// Delete collection property.1445	///1446	/// * `collection` - Collection handler.1447	/// * `sender` - The owner or administrator of the collection.1448	/// * `property` - The property to delete.1449	pub fn delete_collection_property(1450		collection: &CollectionHandle<T>,1451		sender: &T::CrossAccountId,1452		property_key: PropertyKey,1453	) -> DispatchResult {1454		Self::delete_collection_properties(collection, sender, [property_key].into_iter())1455	}14561457	/// Delete collection properties.1458	///1459	/// * `collection` - Collection handler.1460	/// * `sender` - The owner or administrator of the collection.1461	/// * `properties` - The properties to delete.1462	pub fn delete_collection_properties(1463		collection: &CollectionHandle<T>,1464		sender: &T::CrossAccountId,1465		property_keys: impl Iterator<Item = PropertyKey>,1466	) -> DispatchResult {1467		Self::modify_collection_properties(collection, sender, property_keys.map(|key| (key, None)))1468	}14691470	/// Set collection propetry permission without any checks.1471	///1472	/// Used for migrations.1473	///1474	/// * `collection` - Collection handler.1475	/// * `property_permissions` - Property permissions.1476	pub fn set_property_permission_unchecked(1477		collection: CollectionId,1478		property_permission: PropertyKeyPermission,1479	) -> DispatchResult {1480		<CollectionPropertyPermissions<T>>::try_mutate(collection, |permissions| {1481			permissions.try_set(property_permission.key, property_permission.permission)1482		})1483		.map_err(<Error<T>>::from)?;1484		Ok(())1485	}14861487	/// Set collection property permission.1488	///1489	/// * `collection` - Collection handler.1490	/// * `sender` - The owner or administrator of the collection.1491	/// * `property_permission` - Property permission.1492	pub fn set_property_permission(1493		collection: &CollectionHandle<T>,1494		sender: &T::CrossAccountId,1495		property_permission: PropertyKeyPermission,1496	) -> DispatchResult {1497		Self::set_scoped_property_permission(1498			collection,1499			sender,1500			PropertyScope::None,1501			property_permission,1502		)1503	}15041505	/// Set collection property permission with scope.1506	///1507	/// * `collection` - Collection handler.1508	/// * `sender` - The owner or administrator of the collection.1509	/// * `scope` - Property scope.1510	/// * `property_permission` - Property permission.1511	pub fn set_scoped_property_permission(1512		collection: &CollectionHandle<T>,1513		sender: &T::CrossAccountId,1514		scope: PropertyScope,1515		property_permission: PropertyKeyPermission,1516	) -> DispatchResult {1517		collection.check_is_owner_or_admin(sender)?;15181519		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);1520		let current_permission = all_permissions.get(&property_permission.key);1521		if matches![1522			current_permission,1523			Some(PropertyPermission { mutable: false, .. })1524		] {1525			return Err(<Error<T>>::NoPermission.into());1526		}15271528		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {1529			let property_permission = property_permission.clone();1530			permissions.try_scoped_set(1531				scope,1532				property_permission.key,1533				property_permission.permission,1534			)1535		})1536		.map_err(<Error<T>>::from)?;15371538		Self::deposit_event(Event::PropertyPermissionSet(1539			collection.id,1540			property_permission.key,1541		));1542		<PalletEvm<T>>::deposit_log(1543			erc::CollectionHelpersEvents::CollectionChanged {1544				collection_id: eth::collection_id_to_address(collection.id),1545			}1546			.to_log(T::ContractAddress::get()),1547		);15481549		Ok(())1550	}15511552	/// Set token property permission.1553	///1554	/// * `collection` - Collection handler.1555	/// * `sender` - The owner or administrator of the collection.1556	/// * `property_permissions` - Property permissions.1557	#[transactional]1558	pub fn set_token_property_permissions(1559		collection: &CollectionHandle<T>,1560		sender: &T::CrossAccountId,1561		property_permissions: Vec<PropertyKeyPermission>,1562	) -> DispatchResult {1563		Self::set_scoped_token_property_permissions(1564			collection,1565			sender,1566			PropertyScope::None,1567			property_permissions,1568		)1569	}15701571	/// Set token property permission with scope.1572	///1573	/// * `collection` - Collection handler.1574	/// * `sender` - The owner or administrator of the collection.1575	/// * `scope` - Property scope.1576	/// * `property_permissions` - Property permissions.1577	#[transactional]1578	pub fn set_scoped_token_property_permissions(1579		collection: &CollectionHandle<T>,1580		sender: &T::CrossAccountId,1581		scope: PropertyScope,1582		property_permissions: Vec<PropertyKeyPermission>,1583	) -> DispatchResult {1584		for prop_pemission in property_permissions {1585			Self::set_scoped_property_permission(collection, sender, scope, prop_pemission)?;1586		}15871588		Ok(())1589	}15901591	/// Get collection property.1592	pub fn get_collection_property(1593		collection_id: CollectionId,1594		key: &PropertyKey,1595	) -> Option<PropertyValue> {1596		Self::collection_properties(collection_id).get(key).cloned()1597	}15981599	/// Convert byte vector to property key vector.1600	pub fn bytes_keys_to_property_keys(1601		keys: Vec<Vec<u8>>,1602	) -> Result<Vec<PropertyKey>, DispatchError> {1603		keys.into_iter()1604			.map(|key| -> Result<PropertyKey, DispatchError> {1605				key.try_into()1606					.map_err(|_| <Error<T>>::PropertyKeyIsTooLong.into())1607			})1608			.collect::<Result<Vec<PropertyKey>, DispatchError>>()1609	}16101611	/// Get properties according to given keys.1612	pub fn filter_collection_properties(1613		collection_id: CollectionId,1614		keys: Option<Vec<PropertyKey>>,1615	) -> Result<Vec<Property>, DispatchError> {1616		let properties = Self::collection_properties(collection_id);16171618		let properties = keys1619			.map(|keys| {1620				keys.into_iter()1621					.filter_map(|key| {1622						properties.get(&key).map(|value| Property {1623							key,1624							value: value.clone(),1625						})1626					})1627					.collect()1628			})1629			.unwrap_or_else(|| {1630				properties1631					.into_iter()1632					.map(|(key, value)| Property { key, value })1633					.collect()1634			});16351636		Ok(properties)1637	}16381639	/// Get property permissions according to given keys.1640	pub fn filter_property_permissions(1641		collection_id: CollectionId,1642		keys: Option<Vec<PropertyKey>>,1643	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {1644		let permissions = Self::property_permissions(collection_id);16451646		let key_permissions = keys1647			.map(|keys| {1648				keys.into_iter()1649					.filter_map(|key| {1650						permissions1651							.get(&key)1652							.map(|permission| PropertyKeyPermission {1653								key,1654								permission: permission.clone(),1655							})1656					})1657					.collect()1658			})1659			.unwrap_or_else(|| {1660				permissions1661					.into_iter()1662					.map(|(key, permission)| PropertyKeyPermission { key, permission })1663					.collect()1664			});16651666		Ok(key_permissions)1667	}16681669	/// Toggle `user` participation in the `collection`'s allow list.1670	/// #### Store read/writes1671	/// 1 writes1672	pub fn toggle_allowlist(1673		collection: &CollectionHandle<T>,1674		sender: &T::CrossAccountId,1675		user: &T::CrossAccountId,1676		allowed: bool,1677	) -> DispatchResult {1678		collection.check_is_owner_or_admin(sender)?;16791680		// =========16811682		if allowed {1683			<Allowlist<T>>::insert((collection.id, user), true);1684			Self::deposit_event(Event::<T>::AllowListAddressAdded(1685				collection.id,1686				user.clone(),1687			));1688		} else {1689			<Allowlist<T>>::remove((collection.id, user));1690			Self::deposit_event(Event::<T>::AllowListAddressRemoved(1691				collection.id,1692				user.clone(),1693			));1694		}16951696		<PalletEvm<T>>::deposit_log(1697			erc::CollectionHelpersEvents::CollectionChanged {1698				collection_id: eth::collection_id_to_address(collection.id),1699			}1700			.to_log(T::ContractAddress::get()),1701		);17021703		Ok(())1704	}17051706	/// Toggle `user` participation in the `collection`'s admin list.1707	/// #### Store read/writes1708	/// 2 reads, 2 writes1709	pub fn toggle_admin(1710		collection: &CollectionHandle<T>,1711		sender: &T::CrossAccountId,1712		user: &T::CrossAccountId,1713		admin: bool,1714	) -> DispatchResult {1715		collection.check_is_internal()?;1716		collection.check_is_owner(sender)?;17171718		let is_admin = <IsAdmin<T>>::get((collection.id, user));1719		if is_admin == admin {1720			if admin {1721				return Ok(());1722			} else {1723				return Err(Error::<T>::UserIsNotCollectionAdmin.into());1724			}1725		}1726		let amount = <AdminAmount<T>>::get(collection.id);17271728		// =========17291730		if admin {1731			let amount = amount1732				.checked_add(1)1733				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1734			ensure!(1735				amount <= Self::collection_admins_limit(),1736				<Error<T>>::CollectionAdminCountExceeded,1737			);17381739			<AdminAmount<T>>::insert(collection.id, amount);1740			<IsAdmin<T>>::insert((collection.id, user), true);17411742			Self::deposit_event(Event::<T>::CollectionAdminAdded(1743				collection.id,1744				user.clone(),1745			));1746		} else {1747			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1748			<IsAdmin<T>>::remove((collection.id, user));17491750			Self::deposit_event(Event::<T>::CollectionAdminRemoved(1751				collection.id,1752				user.clone(),1753			));1754		}17551756		<PalletEvm<T>>::deposit_log(1757			erc::CollectionHelpersEvents::CollectionChanged {1758				collection_id: eth::collection_id_to_address(collection.id),1759			}1760			.to_log(T::ContractAddress::get()),1761		);17621763		Ok(())1764	}17651766	/// Update collection limits.1767	pub fn update_limits(1768		user: &T::CrossAccountId,1769		collection: &mut CollectionHandle<T>,1770		new_limit: CollectionLimits,1771	) -> DispatchResult {1772		collection.check_is_internal()?;1773		collection.check_is_owner_or_admin(user)?;17741775		collection.limits =1776			Self::clamp_limits(collection.mode.clone(), &collection.limits, new_limit)?;17771778		Self::deposit_event(Event::<T>::CollectionLimitSet(collection.id));1779		<PalletEvm<T>>::deposit_log(1780			erc::CollectionHelpersEvents::CollectionChanged {1781				collection_id: eth::collection_id_to_address(collection.id),1782			}1783			.to_log(T::ContractAddress::get()),1784		);17851786		collection.save()1787	}17881789	/// Merge set fields from `new_limit` to `old_limit`.1790	fn clamp_limits(1791		mode: CollectionMode,1792		old_limit: &CollectionLimits,1793		mut new_limit: CollectionLimits,1794	) -> Result<CollectionLimits, DispatchError> {1795		let limits = old_limit;1796		limit_default!(old_limit, new_limit,1797			account_token_ownership_limit => ensure!(1798				new_limit <= MAX_TOKEN_OWNERSHIP,1799				<Error<T>>::CollectionLimitBoundsExceeded,1800			),1801			sponsored_data_size => ensure!(1802				new_limit <= CUSTOM_DATA_LIMIT,1803				<Error<T>>::CollectionLimitBoundsExceeded,1804			),18051806			sponsored_data_rate_limit => {},1807			token_limit => ensure!(1808				old_limit >= new_limit && new_limit > 0,1809				<Error<T>>::CollectionTokenLimitExceeded1810			),18111812			sponsor_transfer_timeout(match mode {1813				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1814				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1815				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1816			}) => ensure!(1817				new_limit <= MAX_SPONSOR_TIMEOUT,1818				<Error<T>>::CollectionLimitBoundsExceeded,1819			),1820			sponsor_approve_timeout => {},1821			owner_can_transfer => ensure!(1822				!limits.owner_can_transfer_instaled() ||1823				old_limit || !new_limit,1824				<Error<T>>::OwnerPermissionsCantBeReverted,1825			),1826			owner_can_destroy => ensure!(1827				old_limit || !new_limit,1828				<Error<T>>::OwnerPermissionsCantBeReverted,1829			),1830			transfers_enabled => {},1831		);1832		Ok(new_limit)1833	}18341835	/// Update collection permissions.1836	pub fn update_permissions(1837		user: &T::CrossAccountId,1838		collection: &mut CollectionHandle<T>,1839		new_permission: CollectionPermissions,1840	) -> DispatchResult {1841		collection.check_is_internal()?;1842		collection.check_is_owner_or_admin(user)?;1843		collection.permissions = Self::clamp_permissions(1844			collection.mode.clone(),1845			&collection.permissions,1846			new_permission,1847		)?;18481849		Self::deposit_event(Event::<T>::CollectionPermissionSet(collection.id));1850		<PalletEvm<T>>::deposit_log(1851			erc::CollectionHelpersEvents::CollectionChanged {1852				collection_id: eth::collection_id_to_address(collection.id),1853			}1854			.to_log(T::ContractAddress::get()),1855		);18561857		collection.save()1858	}18591860	/// Merge set fields from `new_permission` to `old_permission`.1861	fn clamp_permissions(1862		_mode: CollectionMode,1863		old_permission: &CollectionPermissions,1864		mut new_permission: CollectionPermissions,1865	) -> Result<CollectionPermissions, DispatchError> {1866		limit_default_clone!(old_permission, new_permission,1867			access => {},1868			mint_mode => {},1869			nesting => { /* todo check for permissive, if only it gets out of benchmarks */ },1870		);1871		Ok(new_permission)1872	}18731874	/// Repair possibly broken properties of a collection.1875	pub fn repair_collection(collection_id: CollectionId) -> DispatchResult {1876		CollectionProperties::<T>::mutate(collection_id, |properties| {1877			properties.recompute_consumed_space();1878		});18791880		Ok(())1881	}1882}18831884/// Indicates unsupported methods by returning [Error::UnsupportedOperation].1885#[macro_export]1886macro_rules! unsupported {1887	($runtime:path) => {1888		Err($crate::Error::<$runtime>::UnsupportedOperation.into())1889	};1890}18911892/// Return weights for various worst-case operations.1893pub trait CommonWeightInfo<CrossAccountId> {1894	/// Weight of item creation.1895	fn create_item(data: &CreateItemData) -> Weight {1896		Self::create_multiple_items(from_ref(data))1897	}18981899	/// Weight of items creation.1900	fn create_multiple_items(amount: &[CreateItemData]) -> Weight;19011902	/// Weight of items creation.1903	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;19041905	/// The weight of the burning item.1906	fn burn_item() -> Weight;19071908	/// Property setting weight.1909	///1910	/// * `amount`- The number of properties to set.1911	fn set_collection_properties(amount: u32) -> Weight;19121913	/// Collection property deletion weight.1914	///1915	/// * `amount`- The number of properties to set.1916	fn delete_collection_properties(amount: u32) -> Weight {1917		Self::set_collection_properties(amount)1918	}19191920	/// Token property setting weight.1921	///1922	/// * `amount`- The number of properties to set.1923	fn set_token_properties(amount: u32) -> Weight;19241925	/// Token property deletion weight.1926	///1927	/// * `amount`- The number of properties to delete.1928	fn delete_token_properties(amount: u32) -> Weight {1929		Self::set_token_properties(amount)1930	}19311932	/// Token property permissions set weight.1933	///1934	/// * `amount`- The number of property permissions to set.1935	fn set_token_property_permissions(amount: u32) -> Weight;19361937	/// Transfer price of the token or its parts.1938	fn transfer() -> Weight;19391940	/// The price of setting the permission of the operation from another user.1941	fn approve() -> Weight;19421943	/// The price of setting the permission of the operation from another user for eth mirror.1944	fn approve_from() -> Weight;19451946	/// Transfer price from another user.1947	fn transfer_from() -> Weight;19481949	/// The price of burning a token from another user.1950	fn burn_from() -> Weight;19511952	/// The price of setting approval for all1953	fn set_allowance_for_all() -> Weight;19541955	/// The price of repairing an item.1956	fn force_repair_item() -> Weight;1957}19581959/// Weight info extension trait for refungible pallet.1960pub trait RefungibleExtensionsWeightInfo {1961	/// Weight of token repartition.1962	fn repartition() -> Weight;1963}19641965/// Common collection operations.1966///1967/// It wraps methods in Fungible, Nonfungible and Refungible pallets1968/// and adds weight info.1969pub trait CommonCollectionOperations<T: Config> {1970	/// Create token.1971	///1972	/// * `sender` - The user who mint the token and pays for the transaction.1973	/// * `to` - The user who will own the token.1974	/// * `data` - Token data.1975	/// * `nesting_budget` - A budget that can be spent on nesting tokens.1976	fn create_item(1977		&self,1978		sender: T::CrossAccountId,1979		to: T::CrossAccountId,1980		data: CreateItemData,1981		nesting_budget: &dyn Budget,1982	) -> DispatchResultWithPostInfo;19831984	/// Create multiple tokens.1985	///1986	/// * `sender` - The user who mint the token and pays for the transaction.1987	/// * `to` - The user who will own the token.1988	/// * `data` - Token data.1989	/// * `nesting_budget` - A budget that can be spent on nesting tokens.1990	fn create_multiple_items(1991		&self,1992		sender: T::CrossAccountId,1993		to: T::CrossAccountId,1994		data: Vec<CreateItemData>,1995		nesting_budget: &dyn Budget,1996	) -> DispatchResultWithPostInfo;19971998	/// Create multiple tokens.1999	///2000	/// * `sender` - The user who mint the token and pays for the transaction.2001	/// * `to` - The user who will own the token.2002	/// * `data` - Token data.2003	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2004	fn create_multiple_items_ex(2005		&self,2006		sender: T::CrossAccountId,2007		data: CreateItemExData<T::CrossAccountId>,2008		nesting_budget: &dyn Budget,2009	) -> DispatchResultWithPostInfo;20102011	/// Burn token.2012	///2013	/// * `sender` - The user who owns the token.2014	/// * `token` - Token id that will burned.2015	/// * `amount` - The number of parts of the token that will be burned.2016	fn burn_item(2017		&self,2018		sender: T::CrossAccountId,2019		token: TokenId,2020		amount: u128,2021	) -> DispatchResultWithPostInfo;20222023	/// Set collection properties.2024	///2025	/// * `sender` - Must be either the owner of the collection or its admin.2026	/// * `properties` - Properties to be set.2027	fn set_collection_properties(2028		&self,2029		sender: T::CrossAccountId,2030		properties: Vec<Property>,2031	) -> DispatchResultWithPostInfo;20322033	/// Delete collection properties.2034	///2035	/// * `sender` - Must be either the owner of the collection or its admin.2036	/// * `properties` - The properties to be removed.2037	fn delete_collection_properties(2038		&self,2039		sender: &T::CrossAccountId,2040		property_keys: Vec<PropertyKey>,2041	) -> DispatchResultWithPostInfo;20422043	/// Set token properties.2044	///2045	/// The appropriate [`PropertyPermission`] for the token property2046	/// must be set with [`Self::set_token_property_permissions`].2047	///2048	/// * `sender` - Must be either the owner of the token or its admin.2049	/// * `token_id` - The token for which the properties are being set.2050	/// * `properties` - Properties to be set.2051	/// * `budget` - Budget for setting properties.2052	fn set_token_properties(2053		&self,2054		sender: T::CrossAccountId,2055		token_id: TokenId,2056		properties: Vec<Property>,2057		budget: &dyn Budget,2058	) -> DispatchResultWithPostInfo;20592060	/// Remove token properties.2061	///2062	/// The appropriate [`PropertyPermission`] for the token property2063	/// must be set with [`Self::set_token_property_permissions`].2064	///2065	/// * `sender` - Must be either the owner of the token or its admin.2066	/// * `token_id` - The token for which the properties are being remove.2067	/// * `property_keys` - Keys to remove corresponding properties.2068	/// * `budget` - Budget for removing properties.2069	fn delete_token_properties(2070		&self,2071		sender: T::CrossAccountId,2072		token_id: TokenId,2073		property_keys: Vec<PropertyKey>,2074		budget: &dyn Budget,2075	) -> DispatchResultWithPostInfo;20762077	/// Get token properties raw map.2078	///2079	/// * `token_id` - The token which properties are needed.2080	fn get_token_properties_raw(&self, token_id: TokenId) -> Option<TokenProperties>;20812082	/// Set token properties raw map.2083	///2084	/// * `token_id` - The token for which the properties are being set.2085	/// * `map` - The raw map containing the token's properties.2086	fn set_token_properties_raw(&self, token_id: TokenId, map: TokenProperties);20872088	/// Set token property permissions.2089	///2090	/// * `sender` - Must be either the owner of the token or its admin.2091	/// * `token_id` - The token for which the properties are being set.2092	/// * `property_permissions` - Property permissions to be set.2093	/// * `budget` - Budget for setting properties.2094	fn set_token_property_permissions(2095		&self,2096		sender: &T::CrossAccountId,2097		property_permissions: Vec<PropertyKeyPermission>,2098	) -> DispatchResultWithPostInfo;20992100	/// Transfer amount of token pieces.2101	///2102	/// * `sender` - Donor user.2103	/// * `to` - Recepient user.2104	/// * `token` - The token of which parts are being sent.2105	/// * `amount` - The number of parts of the token that will be transferred.2106	/// * `budget` - The maximum budget that can be spent on the transfer.2107	fn transfer(2108		&self,2109		sender: T::CrossAccountId,2110		to: T::CrossAccountId,2111		token: TokenId,2112		amount: u128,2113		budget: &dyn Budget,2114	) -> DispatchResultWithPostInfo;21152116	/// Grant access to another account to transfer parts of the token owned by the calling user via [Self::transfer_from].2117	///2118	/// * `sender` - The user who grants access to the token.2119	/// * `spender` - The user to whom the rights are granted.2120	/// * `token` - The token to which access is granted.2121	/// * `amount` - The amount of pieces that another user can dispose of.2122	fn approve(2123		&self,2124		sender: T::CrossAccountId,2125		spender: T::CrossAccountId,2126		token: TokenId,2127		amount: u128,2128	) -> DispatchResultWithPostInfo;21292130	/// Grant access to another account to transfer parts of the token owned by the calling user's eth mirror via [Self::transfer_from].2131	///2132	/// * `sender` - The user who grants access to the token.2133	/// * `from` - Spender's eth mirror.2134	/// * `to` - The user to whom the rights are granted.2135	/// * `token` - The token to which access is granted.2136	/// * `amount` - The amount of pieces that another user can dispose of.2137	fn approve_from(2138		&self,2139		sender: T::CrossAccountId,2140		from: T::CrossAccountId,2141		to: T::CrossAccountId,2142		token: TokenId,2143		amount: u128,2144	) -> DispatchResultWithPostInfo;21452146	/// Send parts of a token owned by another user.2147	///2148	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2149	///2150	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2151	/// * `from` - The user who owns the token.2152	/// * `to` - Recepient user.2153	/// * `token` - The token of which parts are being sent.2154	/// * `amount` - The number of parts of the token that will be transferred.2155	/// * `budget` - The maximum budget that can be spent on the transfer.2156	fn transfer_from(2157		&self,2158		sender: T::CrossAccountId,2159		from: T::CrossAccountId,2160		to: T::CrossAccountId,2161		token: TokenId,2162		amount: u128,2163		budget: &dyn Budget,2164	) -> DispatchResultWithPostInfo;21652166	/// Burn parts of a token owned by another user.2167	///2168	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2169	///2170	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2171	/// * `from` - The user who owns the token.2172	/// * `token` - The token of which parts are being sent.2173	/// * `amount` - The number of parts of the token that will be transferred.2174	/// * `budget` - The maximum budget that can be spent on the burn.2175	fn burn_from(2176		&self,2177		sender: T::CrossAccountId,2178		from: T::CrossAccountId,2179		token: TokenId,2180		amount: u128,2181		budget: &dyn Budget,2182	) -> DispatchResultWithPostInfo;21832184	/// Check permission to nest token.2185	///2186	/// * `sender` - The user who initiated the check.2187	/// * `from` - The token that is checked for embedding.2188	/// * `under` - Token under which to check.2189	/// * `budget` - The maximum budget that can be spent on the check.2190	fn check_nesting(2191		&self,2192		sender: &T::CrossAccountId,2193		from: (CollectionId, TokenId),2194		under: TokenId,2195		budget: &dyn Budget,2196	) -> DispatchResult;21972198	/// Nest one token into another.2199	///2200	/// * `under` - Token holder.2201	/// * `to_nest` - Nested token.2202	fn nest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22032204	/// Unnest token.2205	///2206	/// * `under` - Token holder.2207	/// * `to_nest` - Token to unnest.2208	fn unnest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22092210	/// Get all user tokens.2211	///2212	/// * `account` - Account for which you need to get tokens.2213	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;22142215	/// Get all the tokens in the collection.2216	fn collection_tokens(&self) -> Vec<TokenId>;22172218	/// Check if the token exists.2219	///2220	/// * `token` - Id token to check.2221	fn token_exists(&self, token: TokenId) -> bool;22222223	/// Get the id of the last minted token.2224	fn last_token_id(&self) -> TokenId;22252226	/// Get the owner of the token.2227	///2228	/// * `token` - The token for which you need to find out the owner.2229	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError>;22302231	/// Checks if the `maybe_owner` is the indirect owner of the `token`.2232	///2233	/// * `token` - Id token to check.2234	/// * `maybe_owner` - The account to check.2235	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2236	fn check_token_indirect_owner(2237		&self,2238		token: TokenId,2239		maybe_owner: &T::CrossAccountId,2240		nesting_budget: &dyn Budget,2241	) -> Result<bool, DispatchError>;22422243	/// Returns 10 tokens owners in no particular order.2244	///2245	/// * `token` - The token for which you need to find out the owners.2246	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId>;22472248	/// Get the value of the token property by key.2249	///2250	/// * `token` - Token with the property to get.2251	/// * `key` - Property name.2252	fn token_property(&self, token_id: TokenId, key: &PropertyKey) -> Option<PropertyValue>;22532254	/// Get a set of token properties by key vector.2255	///2256	/// * `token` - Token with the property to get.2257	/// * `keys` - Vector of property keys. If this parameter is [None](sp_std::result::Result),2258	/// then all properties are returned.2259	fn token_properties(&self, token: TokenId, keys: Option<Vec<PropertyKey>>) -> Vec<Property>;22602261	/// Amount of unique collection tokens2262	fn total_supply(&self) -> u32;22632264	/// Amount of different tokens account has.2265	///2266	/// * `account` - The account for which need to get the balance.2267	fn account_balance(&self, account: T::CrossAccountId) -> u32;22682269	/// Amount of specific token account have.2270	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;22712272	/// Amount of token pieces2273	fn total_pieces(&self, token: TokenId) -> Option<u128>;22742275	/// Get the number of parts of the token that a trusted user can manage.2276	///2277	/// * `sender` - Trusted user.2278	/// * `spender` - Owner of the token.2279	/// * `token` - The token for which to get the value.2280	fn allowance(2281		&self,2282		sender: T::CrossAccountId,2283		spender: T::CrossAccountId,2284		token: TokenId,2285	) -> u128;22862287	/// Get extension for RFT collection.2288	fn refungible_extensions(&self) -> Option<&dyn RefungibleExtensions<T>> {2289		None2290	}22912292	/// Get XCM extensions.2293	fn xcm_extensions(&self) -> Option<&dyn XcmExtensions<T>> {2294		None2295	}22962297	/// The `operator` is allowed to transfer all tokens of the `owner` on their behalf.2298	/// * `owner` - Token owner2299	/// * `operator` - Operator2300	/// * `approve` - Should operator status be granted or revoked?2301	fn set_allowance_for_all(2302		&self,2303		owner: T::CrossAccountId,2304		operator: T::CrossAccountId,2305		approve: bool,2306	) -> DispatchResultWithPostInfo;23072308	/// Tells whether the given `owner` approves the `operator`.2309	fn allowance_for_all(&self, owner: T::CrossAccountId, operator: T::CrossAccountId) -> bool;23102311	/// Repairs a possibly broken item.2312	fn repair_item(&self, token: TokenId) -> DispatchResultWithPostInfo;2313}23142315/// Extension for RFT collection.2316pub trait RefungibleExtensions<T>2317where2318	T: Config,2319{2320	/// Change the number of parts of the token.2321	///2322	/// When the value changes down, this function is equivalent to burning parts of the token.2323	///2324	/// * `sender` - The user calling the repartition operation. Must be the owner of the token.2325	/// * `token` - The token for which you want to change the number of parts.2326	/// * `amount` - The new value of the parts of the token.2327	fn repartition(2328		&self,2329		sender: &T::CrossAccountId,2330		token: TokenId,2331		amount: u128,2332	) -> DispatchResultWithPostInfo;2333}23342335/// XCM extensions for fungible and NFT collections2336pub trait XcmExtensions<T>2337where2338	T: Config,2339{2340	/// Does the token have children?2341	fn token_has_children(&self, _token: TokenId) -> bool {2342		false2343	}23442345	/// Create a collection's item using a transaction.2346	///2347	/// This function performs additional XCM-related checks before the actual creation.2348	#[transactional]2349	fn create_item(2350		&self,2351		depositor: &T::CrossAccountId,2352		to: T::CrossAccountId,2353		data: CreateItemData,2354		nesting_budget: &dyn Budget,2355	) -> Result<TokenId, DispatchError> {2356		if T::CrossTokenAddressMapping::is_token_address(&to) {2357			return unsupported!(T);2358		}23592360		self.create_item_internal(depositor, to, data, nesting_budget)2361	}23622363	/// Create a collection's item.2364	fn create_item_internal(2365		&self,2366		depositor: &T::CrossAccountId,2367		to: T::CrossAccountId,2368		data: CreateItemData,2369		nesting_budget: &dyn Budget,2370	) -> Result<TokenId, DispatchError>;23712372	/// Transfer an item from the `from` account to the `to` account using a transaction.2373	///2374	/// This function performs additional XCM-related checks before the actual transfer.2375	#[transactional]2376	fn transfer_item(2377		&self,2378		depositor: &T::CrossAccountId,2379		from: &T::CrossAccountId,2380		to: &T::CrossAccountId,2381		token: TokenId,2382		amount: u128,2383		nesting_budget: &dyn Budget,2384	) -> DispatchResult {2385		if T::CrossTokenAddressMapping::is_token_address(&to) {2386			return unsupported!(T);2387		}23882389		self.transfer_item_internal(depositor, from, to, token, amount, nesting_budget)2390	}23912392	/// Transfer an item from the `from` account to the `to` account.2393	fn transfer_item_internal(2394		&self,2395		depositor: &T::CrossAccountId,2396		from: &T::CrossAccountId,2397		to: &T::CrossAccountId,2398		token: TokenId,2399		amount: u128,2400		nesting_budget: &dyn Budget,2401	) -> DispatchResult;24022403	/// Burn a collection's item using a transaction.2404	#[transactional]2405	fn burn_item(&self, from: T::CrossAccountId, token: TokenId, amount: u128) -> DispatchResult {2406		self.burn_item_internal(from, token, amount)2407	}24082409	/// Burn a collection's item.2410	fn burn_item_internal(2411		&self,2412		from: T::CrossAccountId,2413		token: TokenId,2414		amount: u128,2415	) -> DispatchResult;2416}24172418/// Merge [`DispatchResult`] with [`Weight`] into [`DispatchResultWithPostInfo`].2419///2420/// Used for [`CommonCollectionOperations`] implementations and flexible enough to do so.2421pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {2422	let post_info = PostDispatchInfo {2423		actual_weight: Some(weight),2424		pays_fee: Pays::Yes,2425	};2426	match res {2427		Ok(()) => Ok(post_info),2428		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),2429	}2430}24312432impl<T: Config> From<PropertiesError> for Error<T> {2433	fn from(error: PropertiesError) -> Self {2434		match error {2435			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,2436			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,2437			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,2438			PropertiesError::PropertyKeyIsTooLong => Self::PropertyKeyIsTooLong,2439			PropertiesError::EmptyPropertyKey => Self::EmptyPropertyKey,2440		}2441	}2442}24432444/// The type-safe interface for writing properties (setting or deleting) to tokens.2445/// It has two distinct implementations for newly created tokens and existing ones.2446///2447/// This type utilizes the lazy evaluation to avoid repeating the computation2448/// of several performance-heavy or PoV-heavy tasks,2449/// such as checking the indirect ownership or reading the token property permissions.2450pub struct PropertyWriter<'a, WriterVariant, T, Handle> {2451	collection: &'a Handle,2452	collection_lazy_info: PropertyWriterLazyCollectionInfo<'a>,2453	_phantom: PhantomData<(T, WriterVariant)>,2454}24552456impl<'a, T, Handle, WriterVariant> PropertyWriter<'a, WriterVariant, T, Handle>2457where2458	T: Config,2459	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2460{2461	fn internal_write_token_properties(2462		&mut self,2463		token_id: TokenId,2464		mut token_lazy_info: PropertyWriterLazyTokenInfo,2465		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,2466		log: evm_coder::ethereum::Log,2467	) -> DispatchResult {2468		for (key, value) in properties_updates {2469			let permission = self2470				.collection_lazy_info2471				.property_permissions2472				.value()2473				.get(&key)2474				.cloned()2475				.unwrap_or_else(PropertyPermission::none);24762477			match permission {2478				PropertyPermission { mutable: false, .. }2479					if token_lazy_info2480						.stored_properties2481						.value()2482						.get(&key)2483						.is_some() =>2484				{2485					return Err(<Error<T>>::NoPermission.into());2486				}24872488				PropertyPermission {2489					collection_admin,2490					token_owner,2491					..2492				} => check_token_permissions::<T>(2493					collection_admin,2494					token_owner,2495					&mut self.collection_lazy_info.is_collection_admin,2496					&mut token_lazy_info.is_token_owner,2497					&mut token_lazy_info.is_token_exist,2498				)?,2499			}25002501			match value {2502				Some(value) => {2503					token_lazy_info2504						.stored_properties2505						.value_mut()2506						.try_set(key.clone(), value)2507						.map_err(<Error<T>>::from)?;25082509					<Pallet<T>>::deposit_event(Event::TokenPropertySet(2510						self.collection.id,2511						token_id,2512						key,2513					));2514				}2515				None => {2516					token_lazy_info2517						.stored_properties2518						.value_mut()2519						.remove(&key)2520						.map_err(<Error<T>>::from)?;25212522					<Pallet<T>>::deposit_event(Event::TokenPropertyDeleted(2523						self.collection.id,2524						token_id,2525						key,2526					));2527				}2528			}2529		}25302531		let properties_changed = token_lazy_info.stored_properties.has_value();2532		if properties_changed {2533			<PalletEvm<T>>::deposit_log(log);25342535			self.collection2536				.set_token_properties_raw(token_id, token_lazy_info.stored_properties.into_inner());2537		}25382539		Ok(())2540	}2541}25422543/// A helper structure for the [`PropertyWriter`] that holds2544/// the collection-related info. The info is loaded using lazy evaluation.2545/// This info is common for any token for which we write properties.2546pub struct PropertyWriterLazyCollectionInfo<'a> {2547	is_collection_admin: LazyValue<'a, bool>,2548	property_permissions: LazyValue<'a, PropertiesPermissionMap>,2549}25502551/// A helper structure for the [`PropertyWriter`] that holds2552/// the token-related info. The info is loaded using lazy evaluation.2553pub struct PropertyWriterLazyTokenInfo<'a> {2554	is_token_exist: LazyValue<'a, bool>,2555	is_token_owner: LazyValue<'a, Result<bool, DispatchError>>,2556	stored_properties: LazyValue<'a, TokenProperties>,2557}25582559impl<'a> PropertyWriterLazyTokenInfo<'a> {2560	/// Create a lazy token info.2561	pub fn new(2562		check_token_exist: impl FnOnce() -> bool + 'a,2563		check_token_owner: impl FnOnce() -> Result<bool, DispatchError> + 'a,2564		get_token_properties: impl FnOnce() -> TokenProperties + 'a,2565	) -> Self {2566		Self {2567			is_token_exist: LazyValue::new(check_token_exist),2568			is_token_owner: LazyValue::new(check_token_owner),2569			stored_properties: LazyValue::new(get_token_properties),2570		}2571	}2572}25732574/// A marker structure that enables the writer implementation2575/// to provide the interface to write properties to **newly created** tokens.2576pub struct NewTokenPropertyWriter<T>(PhantomData<T>);2577impl<T: Config> NewTokenPropertyWriter<T> {2578	/// Creates a [`PropertyWriter`] for **newly created** tokens.2579	pub fn new<'a, Handle>(2580		collection: &'a Handle,2581		sender: &'a T::CrossAccountId,2582	) -> PropertyWriter<'a, Self, T, Handle>2583	where2584		T: Config,2585		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2586	{2587		PropertyWriter {2588			collection,2589			collection_lazy_info: PropertyWriterLazyCollectionInfo {2590				is_collection_admin: LazyValue::new(|| collection.is_owner_or_admin(sender)),2591				property_permissions: LazyValue::new(|| {2592					<Pallet<T>>::property_permissions(collection.id)2593				}),2594			},2595			_phantom: PhantomData,2596		}2597	}2598}25992600impl<'a, T, Handle> PropertyWriter<'a, NewTokenPropertyWriter<T>, T, Handle>2601where2602	T: Config,2603	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2604{2605	/// A function to write properties to a **newly created** token.2606	pub fn write_token_properties(2607		&mut self,2608		mint_target_is_sender: bool,2609		token_id: TokenId,2610		properties_updates: impl Iterator<Item = Property>,2611		log: evm_coder::ethereum::Log,2612	) -> DispatchResult {2613		let check_token_exist = || {2614			debug_assert!(self.collection.token_exists(token_id));2615			true2616		};26172618		let check_token_owner = || Ok(mint_target_is_sender);26192620		let get_token_properties = || {2621			debug_assert!(self.collection.get_token_properties_raw(token_id).is_none());2622			TokenProperties::new()2623		};26242625		self.internal_write_token_properties(2626			token_id,2627			PropertyWriterLazyTokenInfo::new(2628				check_token_exist,2629				check_token_owner,2630				get_token_properties,2631			),2632			properties_updates.map(|p| (p.key, Some(p.value))),2633			log,2634		)2635	}2636}26372638/// A marker structure that enables the writer implementation2639/// to provide the interface to write properties to **already existing** tokens.2640pub struct ExistingTokenPropertyWriter<T>(PhantomData<T>);2641impl<T: Config> ExistingTokenPropertyWriter<T> {2642	/// Creates a [`PropertyWriter`] for **already existing** tokens.2643	pub fn new<'a, Handle>(2644		collection: &'a Handle,2645		sender: &'a T::CrossAccountId,2646	) -> PropertyWriter<'a, Self, T, Handle>2647	where2648		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2649	{2650		PropertyWriter {2651			collection,2652			collection_lazy_info: PropertyWriterLazyCollectionInfo {2653				is_collection_admin: LazyValue::new(|| collection.is_owner_or_admin(sender)),2654				property_permissions: LazyValue::new(|| {2655					<Pallet<T>>::property_permissions(collection.id)2656				}),2657			},2658			_phantom: PhantomData,2659		}2660	}2661}26622663impl<'a, T, Handle> PropertyWriter<'a, ExistingTokenPropertyWriter<T>, T, Handle>2664where2665	T: Config,2666	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2667{2668	/// A function to write properties to an **already existing** token.2669	pub fn write_token_properties(2670		&mut self,2671		sender: &T::CrossAccountId,2672		token_id: TokenId,2673		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,2674		nesting_budget: &dyn Budget,2675		log: evm_coder::ethereum::Log,2676	) -> DispatchResult {2677		let check_token_exist = || self.collection.token_exists(token_id);2678		let check_token_owner = || {2679			self.collection2680				.check_token_indirect_owner(token_id, sender, nesting_budget)2681		};2682		let get_token_properties = || {2683			self.collection2684				.get_token_properties_raw(token_id)2685				.unwrap_or_default()2686		};26872688		self.internal_write_token_properties(2689			token_id,2690			PropertyWriterLazyTokenInfo::new(2691				check_token_exist,2692				check_token_owner,2693				get_token_properties,2694			),2695			properties_updates,2696			log,2697		)2698	}2699}27002701/// A marker structure that enables the writer implementation2702/// to benchmark the token properties writing.2703#[cfg(feature = "runtime-benchmarks")]2704pub struct BenchmarkPropertyWriter<T>(PhantomData<T>);27052706#[cfg(feature = "runtime-benchmarks")]2707impl<T: Config> BenchmarkPropertyWriter<T> {2708	/// Creates a [`PropertyWriter`] for benchmarking tokens properties writing.2709	pub fn new<'a, Handle>(2710		collection: &'a Handle,2711		collection_lazy_info: PropertyWriterLazyCollectionInfo<'a>,2712	) -> PropertyWriter<'a, Self, T, Handle>2713	where2714		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2715	{2716		PropertyWriter {2717			collection,2718			collection_lazy_info,2719			_phantom: PhantomData,2720		}2721	}27222723	/// Load the [`PropertyWriterLazyCollectionInfo`] from the storage.2724	pub fn load_collection_info<Handle>(2725		collection_handle: &Handle,2726		sender: &T::CrossAccountId,2727	) -> PropertyWriterLazyCollectionInfo<'static>2728	where2729		Handle: Deref<Target = CollectionHandle<T>>,2730	{2731		let is_collection_admin = collection_handle.is_owner_or_admin(sender);2732		let property_permissions = <Pallet<T>>::property_permissions(collection_handle.id);27332734		PropertyWriterLazyCollectionInfo {2735			is_collection_admin: LazyValue::new(move || is_collection_admin),2736			property_permissions: LazyValue::new(move || property_permissions),2737		}2738	}27392740	/// Load the [`PropertyWriterLazyTokenInfo`] with token properties from the storage.2741	pub fn load_token_properties<Handle>(2742		collection: &Handle,2743		token_id: TokenId,2744	) -> PropertyWriterLazyTokenInfo2745	where2746		Handle: CommonCollectionOperations<T>,2747	{2748		let stored_properties = collection2749			.get_token_properties_raw(token_id)2750			.unwrap_or_default();27512752		PropertyWriterLazyTokenInfo {2753			is_token_exist: LazyValue::new(|| true),2754			is_token_owner: LazyValue::new(|| Ok(true)),2755			stored_properties: LazyValue::new(move || stored_properties),2756		}2757	}2758}27592760#[cfg(feature = "runtime-benchmarks")]2761impl<'a, T, Handle> PropertyWriter<'a, BenchmarkPropertyWriter<T>, T, Handle>2762where2763	T: Config,2764	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2765{2766	/// A function to benchmark the writing of token properties.2767	pub fn write_token_properties(2768		&mut self,2769		token_id: TokenId,2770		properties_updates: impl Iterator<Item = Property>,2771		log: evm_coder::ethereum::Log,2772	) -> DispatchResult {2773		let check_token_exist = || true;2774		let check_token_owner = || Ok(true);2775		let get_token_properties = TokenProperties::new;27762777		self.internal_write_token_properties(2778			token_id,2779			PropertyWriterLazyTokenInfo::new(2780				check_token_exist,2781				check_token_owner,2782				get_token_properties,2783			),2784			properties_updates.map(|p| (p.key, Some(p.value))),2785			log,2786		)2787	}2788}27892790/// Computes the weight of writing properties to tokens.2791/// * `properties_nums` - The properties num of each created token.2792/// * `per_token_weight_weight` - The function to obtain the weight2793/// of writing properties from a token's properties num.2794pub fn write_token_properties_total_weight<T: Config, I: Fn(u32) -> Weight>(2795	properties_nums: impl Iterator<Item = u32>,2796	per_token_weight: I,2797) -> Weight {2798	let mut weight = properties_nums2799		.filter_map(|properties_num| {2800			if properties_num > 0 {2801				Some(per_token_weight(properties_num))2802			} else {2803				None2804			}2805		})2806		.fold(Weight::zero(), |a, b| a.saturating_add(b));28072808	if !weight.is_zero() {2809		// If we are here, it means the token properties were written at least once.2810		// Because of that, some common collection data was also loaded; we must add this weight.2811		// However, this common data was loaded only once, which is guaranteed by the `PropertyWriter`.28122813		weight = weight.saturating_add(<SelfWeightOf<T>>::property_writer_load_collection_info());2814	}28152816	weight2817}28182819#[cfg(any(feature = "tests", test))]2820#[allow(missing_docs)]2821pub mod tests {2822	use crate::{Config, DispatchError, DispatchResult, LazyValue};28232824	const fn to_bool(u: u8) -> bool {2825		u != 02826	}28272828	#[derive(Debug)]2829	pub struct TestCase {2830		pub collection_admin: bool,2831		pub is_collection_admin: bool,2832		pub token_owner: bool,2833		pub is_token_owner: bool,2834		pub no_permission: bool,2835	}28362837	impl TestCase {2838		const fn new(2839			collection_admin: u8,2840			is_collection_admin: u8,2841			token_owner: u8,2842			is_token_owner: u8,2843			no_permission: u8,2844		) -> Self {2845			Self {2846				collection_admin: to_bool(collection_admin),2847				is_collection_admin: to_bool(is_collection_admin),2848				token_owner: to_bool(token_owner),2849				is_token_owner: to_bool(is_token_owner),2850				no_permission: to_bool(no_permission),2851			}2852		}2853	}28542855	#[rustfmt::skip]2856	pub const TABLE: [TestCase; 16] = [2857		//                    ┌╴collection_admin2858		//                    │  ┌╴is_collection_admin2859		//                    │  │   ┌╴token_owner2860		//                    │  │   │  ┌╴is_token_ownership2861		//                    │  │   │  │   ┌╴no_permission2862		/*  0*/ TestCase::new(0, 0,  0, 0,  1),2863		/*  1*/ TestCase::new(0, 0,  0, 1,  1),2864		/*  2*/ TestCase::new(0, 0,  1, 0,  1),2865		/*  3*/ TestCase::new(0, 0,  1, 1,  0),2866		/*  4*/ TestCase::new(0, 1,  0, 0,  1),2867		/*  5*/ TestCase::new(0, 1,  0, 1,  1),2868		/*  6*/ TestCase::new(0, 1,  1, 0,  1),2869		/*  7*/ TestCase::new(0, 1,  1, 1,  0),2870		/*  8*/ TestCase::new(1, 0,  0, 0,  1),2871		/*  9*/ TestCase::new(1, 0,  0, 1,  1),2872		/* 10*/ TestCase::new(1, 0,  1, 0,  1),2873		/* 11*/ TestCase::new(1, 0,  1, 1,  0),2874		/* 12*/ TestCase::new(1, 1,  0, 0,  0),2875		/* 13*/ TestCase::new(1, 1,  0, 1,  0),2876		/* 14*/ TestCase::new(1, 1,  1, 0,  0),2877		/* 15*/ TestCase::new(1, 1,  1, 1,  0),2878	];28792880	pub fn check_token_permissions<T: Config>(2881		collection_admin_permitted: bool,2882		token_owner_permitted: bool,2883		is_collection_admin: &mut LazyValue<bool>,2884		check_token_ownership: &mut LazyValue<Result<bool, DispatchError>>,2885		check_token_existence: &mut LazyValue<bool>,2886	) -> DispatchResult {2887		crate::check_token_permissions::<T>(2888			collection_admin_permitted,2889			token_owner_permitted,2890			is_collection_admin,2891			check_token_ownership,2892			check_token_existence,2893		)2894	}2895}