git.delta.rocks / unique-network / refs/commits / b0dfc97e805b

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}946947/// An issuer of a collection.948pub enum CollectionIssuer<CrossAccountId> {949	/// A user who creates the collection.950	User(CrossAccountId),951952	/// The internal mechanisms are creating the collection.953	Internals,954}955956fn check_token_permissions<T: Config>(957	collection_admin_permitted: bool,958	token_owner_permitted: bool,959	is_collection_admin: &mut LazyValue<bool>,960	is_token_owner: &mut LazyValue<Result<bool, DispatchError>>,961	is_token_exist: &mut LazyValue<bool>,962) -> DispatchResult {963	if !(collection_admin_permitted && *is_collection_admin.value()964		|| token_owner_permitted && (*is_token_owner.value())?)965	{966		fail!(<Error<T>>::NoPermission);967	}968969	let token_exist_due_to_owner_check_success =970		is_token_owner.has_value() && (*is_token_owner.value())?;971972	// If the token owner check has occurred and succeeded,973	// we know the token exists (otherwise, the owner check must fail).974	if !token_exist_due_to_owner_check_success {975		// If the token owner check didn't occur,976		// we must check the token's existence ourselves.977		if !is_token_exist.value() {978			fail!(<Error<T>>::TokenNotFound);979		}980	}981982	Ok(())983}984985impl<T: Config> Pallet<T> {986	/// Enshure that receiver address is correct.987	///988	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens.989	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {990		ensure!(991			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,992			<Error<T>>::AddressIsZero993		);994		Ok(())995	}996997	/// Get a vector of collection admins.998	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {999		<IsAdmin<T>>::iter_prefix((collection,))1000			.map(|(a, _)| a)1001			.collect()1002	}10031004	/// Get a vector of users allowed to mint tokens.1005	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {1006		<Allowlist<T>>::iter_prefix((collection,))1007			.map(|(a, _)| a)1008			.collect()1009	}10101011	/// Is `user` allowed to mint token in `collection`.1012	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {1013		<Allowlist<T>>::get((collection, user))1014	}10151016	/// Get statistics of collections.1017	pub fn collection_stats() -> CollectionStats {1018		let created = <CreatedCollectionCount<T>>::get();1019		let destroyed = <DestroyedCollectionCount<T>>::get();1020		CollectionStats {1021			created: created.0,1022			destroyed: destroyed.0,1023			alive: created.0 - destroyed.0,1024		}1025	}10261027	/// Get the effective limits for the collection.1028	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {1029		let collection = <CollectionById<T>>::get(collection)?;1030		let limits = collection.limits;1031		let effective_limits = CollectionLimits {1032			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),1033			sponsored_data_size: Some(limits.sponsored_data_size()),1034			sponsored_data_rate_limit: Some(1035				limits1036					.sponsored_data_rate_limit1037					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),1038			),1039			token_limit: Some(limits.token_limit()),1040			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(1041				match collection.mode {1042					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1043					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1044					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1045				},1046			)),1047			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),1048			owner_can_transfer: Some(limits.owner_can_transfer()),1049			owner_can_destroy: Some(limits.owner_can_destroy()),1050			transfers_enabled: Some(limits.transfers_enabled()),1051		};10521053		Some(effective_limits)1054	}10551056	/// Returns information about the `collection` adapted for rpc.1057	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {1058		let Collection {1059			name,1060			description,1061			owner,1062			mode,1063			token_prefix,1064			sponsorship,1065			limits,1066			permissions,1067			flags,1068		} = <CollectionById<T>>::get(collection)?;10691070		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)1071			.into_iter()1072			.map(|(key, permission)| PropertyKeyPermission { key, permission })1073			.collect();10741075		let properties = <CollectionProperties<T>>::get(collection)1076			.into_iter()1077			.map(|(key, value)| Property { key, value })1078			.collect();10791080		let permissions = CollectionPermissions {1081			access: Some(permissions.access()),1082			mint_mode: Some(permissions.mint_mode()),1083			nesting: Some(permissions.nesting().clone()),1084		};10851086		Some(RpcCollection {1087			name: name.into_inner(),1088			description: description.into_inner(),1089			owner,1090			mode,1091			token_prefix: token_prefix.into_inner(),1092			sponsorship,1093			limits,1094			permissions,1095			token_property_permissions,1096			properties,1097			read_only: flags.external,10981099			flags: RpcCollectionFlags {1100				foreign: flags.foreign,1101				erc721metadata: flags.erc721metadata,1102			},1103		})1104	}1105}11061107macro_rules! limit_default {1108	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1109		$(1110			if let Some($new) = $new.$field {1111				let $old = $old.$field($($arg)?);1112				let _ = $new;1113				let _ = $old;1114				$check1115			} else {1116				$new.$field = $old.$field1117			}1118		)*1119	}};1120}1121macro_rules! limit_default_clone {1122	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1123		$(1124			if let Some($new) = $new.$field.clone() {1125				let $old = $old.$field($($arg)?);1126				let _ = $new;1127				let _ = $old;1128				$check1129			} else {1130				$new.$field = $old.$field.clone()1131			}1132		)*1133	}};1134}11351136impl<T: Config> Pallet<T> {1137	/// Create new collection.1138	///1139	/// * `owner` - The owner of the collection.1140	/// * `issuer` - An entity that creates the collection.1141	/// * `is_special_collection` -- Whether this collection is a special one, i.e. can have special flags set.1142	pub fn init_collection(1143		owner: T::CrossAccountId,1144		issuer: CollectionIssuer<T::CrossAccountId>,1145		data: CreateCollectionData<T::CrossAccountId>,1146	) -> Result<CollectionId, DispatchError> {1147		match issuer {1148			CollectionIssuer::User(payer) => {1149				ensure!(data.flags.is_allowed_for_user(), <Error<T>>::NoPermission);11501151				// Take a (non-refundable) deposit of collection creation1152				let mut imbalance = <Debt<T::AccountId, <T as Config>::Currency>>::zero();1153				imbalance.subsume(<T as Config>::Currency::deposit(1154					&T::TreasuryAccountId::get(),1155					T::CollectionCreationPrice::get(),1156					Precision::Exact,1157				)?);1158				let credit = <T as Config>::Currency::settle(1159					payer.as_sub(),1160					imbalance,1161					Preservation::Preserve,1162				)1163				.map_err(|_| Error::<T>::NotSufficientFounds)?;11641165				debug_assert!(credit.peek().is_zero());1166			}1167			CollectionIssuer::Internals => {}1168		}11691170		{1171			ensure!(1172				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,1173				Error::<T>::CollectionTokenPrefixLimitExceeded1174			);1175		}11761177		let created_count = <CreatedCollectionCount<T>>::get()1178			.01179			.checked_add(1)1180			.ok_or(ArithmeticError::Overflow)?;1181		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;1182		let id = CollectionId(created_count);11831184		// bound Total number of collections1185		ensure!(1186			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,1187			<Error<T>>::TotalCollectionsLimitExceeded1188		);11891190		// =========11911192		let collection = Collection {1193			owner: owner.as_sub().clone(),1194			name: data.name,1195			mode: data.mode.clone(),1196			description: data.description,1197			token_prefix: data.token_prefix,1198			sponsorship: data1199				.pending_sponsor1200				.map(|sponsor| SponsorshipState::Unconfirmed(sponsor.as_sub().clone()))1201				.unwrap_or_default(),1202			limits: data1203				.limits1204				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))1205				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,1206			permissions: data1207				.permissions1208				.map(|permissions| {1209					Self::clamp_permissions(data.mode.clone(), &Default::default(), permissions)1210				})1211				.unwrap_or_else(|| Ok(CollectionPermissions::default()))?,1212			flags: data.flags,1213		};12141215		let mut collection_properties = CollectionPropertiesT::new();1216		collection_properties1217			.try_set_from_iter(data.properties.into_iter())1218			.map_err(<Error<T>>::from)?;12191220		CollectionProperties::<T>::insert(id, collection_properties);12211222		let mut token_props_permissions = PropertiesPermissionMap::new();1223		token_props_permissions1224			.try_set_from_iter(data.token_property_permissions.into_iter())1225			.map_err(<Error<T>>::from)?;12261227		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);12281229		let mut admin_amount = 0u32;1230		for admin in data.admin_list.iter() {1231			if !<IsAdmin<T>>::get((id, admin)) {1232				<IsAdmin<T>>::insert((id, admin), true);1233				admin_amount = admin_amount1234					.checked_add(1)1235					.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1236			}1237		}1238		ensure!(1239			admin_amount <= Self::collection_admins_limit(),1240			<Error<T>>::CollectionAdminCountExceeded,1241		);1242		<AdminAmount<T>>::insert(id, admin_amount);12431244		<CreatedCollectionCount<T>>::put(created_count);1245		<Pallet<T>>::deposit_event(Event::CollectionCreated(1246			id,1247			data.mode.id(),1248			owner.as_sub().clone(),1249		));1250		<PalletEvm<T>>::deposit_log(1251			erc::CollectionHelpersEvents::CollectionCreated {1252				owner: *owner.as_eth(),1253				collection_id: eth::collection_id_to_address(id),1254			}1255			.to_log(T::ContractAddress::get()),1256		);1257		<CollectionById<T>>::insert(id, collection);1258		Ok(id)1259	}12601261	/// Destroy collection.1262	///1263	/// * `collection` - Collection handler.1264	/// * `sender` - The owner or administrator of the collection.1265	pub fn destroy_collection(1266		collection: CollectionHandle<T>,1267		sender: &T::CrossAccountId,1268	) -> DispatchResult {1269		ensure!(1270			collection.limits.owner_can_destroy(),1271			<Error<T>>::NoPermission,1272		);1273		collection.check_is_owner(sender)?;12741275		let destroyed_collections = <DestroyedCollectionCount<T>>::get()1276			.01277			.checked_add(1)1278			.ok_or(ArithmeticError::Overflow)?;12791280		// =========12811282		<DestroyedCollectionCount<T>>::put(destroyed_collections);1283		<CollectionById<T>>::remove(collection.id);1284		<AdminAmount<T>>::remove(collection.id);1285		let _ = <IsAdmin<T>>::clear_prefix((collection.id,), u32::MAX, None);1286		let _ = <Allowlist<T>>::clear_prefix((collection.id,), u32::MAX, None);1287		<CollectionProperties<T>>::remove(collection.id);12881289		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));12901291		<PalletEvm<T>>::deposit_log(1292			erc::CollectionHelpersEvents::CollectionDestroyed {1293				collection_id: eth::collection_id_to_address(collection.id),1294			}1295			.to_log(T::ContractAddress::get()),1296		);1297		Ok(())1298	}12991300	/// This function sets or removes a collection properties according to1301	/// `properties_updates` contents:1302	/// * sets a property under the <key> with the value provided `(<key>, Some(<value>))`1303	/// * removes a property under the <key> if the value is `None` `(<key>, None)`.1304	///1305	/// This function fires an event for each property change.1306	/// In case of an error, all the changes (including the events) will be reverted1307	/// since the function is transactional.1308	#[transactional]1309	fn modify_collection_properties(1310		collection: &CollectionHandle<T>,1311		sender: &T::CrossAccountId,1312		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,1313	) -> DispatchResult {1314		collection.check_is_owner_or_admin(sender)?;13151316		let mut stored_properties = <CollectionProperties<T>>::get(collection.id);13171318		for (key, value) in properties_updates {1319			match value {1320				Some(value) => {1321					stored_properties1322						.try_set(key.clone(), value)1323						.map_err(<Error<T>>::from)?;13241325					Self::deposit_event(Event::CollectionPropertySet(collection.id, key));1326					<PalletEvm<T>>::deposit_log(1327						erc::CollectionHelpersEvents::CollectionChanged {1328							collection_id: eth::collection_id_to_address(collection.id),1329						}1330						.to_log(T::ContractAddress::get()),1331					);1332				}1333				None => {1334					stored_properties.remove(&key).map_err(<Error<T>>::from)?;13351336					Self::deposit_event(Event::CollectionPropertyDeleted(collection.id, key));1337					<PalletEvm<T>>::deposit_log(1338						erc::CollectionHelpersEvents::CollectionChanged {1339							collection_id: eth::collection_id_to_address(collection.id),1340						}1341						.to_log(T::ContractAddress::get()),1342					);1343				}1344			}1345		}13461347		<CollectionProperties<T>>::set(collection.id, stored_properties);13481349		Ok(())1350	}13511352	/// Sets or unsets the approval of a given operator.1353	///1354	/// The `operator` is allowed to transfer all token pieces of the `owner` on their behalf.1355	/// - `owner`: Token owner1356	/// - `operator`: Operator1357	/// - `approve`: Should operator status be granted or revoked?1358	pub fn set_allowance_for_all(1359		collection: &CollectionHandle<T>,1360		owner: &T::CrossAccountId,1361		operator: &T::CrossAccountId,1362		approve: bool,1363		set_allowance: impl FnOnce(),1364		log: evm_coder::ethereum::Log,1365	) -> DispatchResult {1366		if collection.permissions.access() == AccessMode::AllowList {1367			collection.check_allowlist(owner)?;1368			collection.check_allowlist(operator)?;1369		}13701371		Self::ensure_correct_receiver(operator)?;13721373		set_allowance();13741375		<PalletEvm<T>>::deposit_log(log);1376		Self::deposit_event(Event::ApprovedForAll(1377			collection.id,1378			owner.clone(),1379			operator.clone(),1380			approve,1381		));1382		Ok(())1383	}13841385	/// Set collection property.1386	///1387	/// * `collection` - Collection handler.1388	/// * `sender` - The owner or administrator of the collection.1389	/// * `property` - The property to set.1390	pub fn set_collection_property(1391		collection: &CollectionHandle<T>,1392		sender: &T::CrossAccountId,1393		property: Property,1394	) -> DispatchResult {1395		Self::set_collection_properties(collection, sender, [property].into_iter())1396	}13971398	/// Set a scoped collection property, where the scope is a special prefix1399	/// prohibiting a user access to change the property directly.1400	///1401	/// * `collection_id` - ID of the collection for which the property is being set.1402	/// * `scope` - Property scope.1403	/// * `property` - The property to set.1404	pub fn set_scoped_collection_property(1405		collection_id: CollectionId,1406		scope: PropertyScope,1407		property: Property,1408	) -> DispatchResult {1409		CollectionProperties::<T>::try_mutate(collection_id, |properties| {1410			properties.try_scoped_set(scope, property.key, property.value)1411		})1412		.map_err(<Error<T>>::from)?;14131414		Ok(())1415	}14161417	/// Set scoped collection properties, where the scope is a special prefix1418	/// prohibiting a user access to change the properties directly.1419	///1420	/// * `collection_id` - ID of the collection for which the properties is being set.1421	/// * `scope` - Property scope.1422	/// * `properties` - The properties to set.1423	pub fn set_scoped_collection_properties(1424		collection_id: CollectionId,1425		scope: PropertyScope,1426		properties: impl Iterator<Item = Property>,1427	) -> DispatchResult {1428		CollectionProperties::<T>::try_mutate(collection_id, |stored_properties| {1429			stored_properties.try_scoped_set_from_iter(scope, properties)1430		})1431		.map_err(<Error<T>>::from)?;14321433		Ok(())1434	}14351436	/// Set collection properties.1437	///1438	/// * `collection` - Collection handler.1439	/// * `sender` - The owner or administrator of the collection.1440	/// * `properties` - The properties to set.1441	pub fn set_collection_properties(1442		collection: &CollectionHandle<T>,1443		sender: &T::CrossAccountId,1444		properties: impl Iterator<Item = Property>,1445	) -> DispatchResult {1446		Self::modify_collection_properties(1447			collection,1448			sender,1449			properties.map(|property| (property.key, Some(property.value))),1450		)1451	}14521453	/// Delete collection property.1454	///1455	/// * `collection` - Collection handler.1456	/// * `sender` - The owner or administrator of the collection.1457	/// * `property` - The property to delete.1458	pub fn delete_collection_property(1459		collection: &CollectionHandle<T>,1460		sender: &T::CrossAccountId,1461		property_key: PropertyKey,1462	) -> DispatchResult {1463		Self::delete_collection_properties(collection, sender, [property_key].into_iter())1464	}14651466	/// Delete collection properties.1467	///1468	/// * `collection` - Collection handler.1469	/// * `sender` - The owner or administrator of the collection.1470	/// * `properties` - The properties to delete.1471	pub fn delete_collection_properties(1472		collection: &CollectionHandle<T>,1473		sender: &T::CrossAccountId,1474		property_keys: impl Iterator<Item = PropertyKey>,1475	) -> DispatchResult {1476		Self::modify_collection_properties(collection, sender, property_keys.map(|key| (key, None)))1477	}14781479	/// Set collection propetry permission without any checks.1480	///1481	/// Used for migrations.1482	///1483	/// * `collection` - Collection handler.1484	/// * `property_permissions` - Property permissions.1485	pub fn set_property_permission_unchecked(1486		collection: CollectionId,1487		property_permission: PropertyKeyPermission,1488	) -> DispatchResult {1489		<CollectionPropertyPermissions<T>>::try_mutate(collection, |permissions| {1490			permissions.try_set(property_permission.key, property_permission.permission)1491		})1492		.map_err(<Error<T>>::from)?;1493		Ok(())1494	}14951496	/// Set collection property permission.1497	///1498	/// * `collection` - Collection handler.1499	/// * `sender` - The owner or administrator of the collection.1500	/// * `property_permission` - Property permission.1501	pub fn set_property_permission(1502		collection: &CollectionHandle<T>,1503		sender: &T::CrossAccountId,1504		property_permission: PropertyKeyPermission,1505	) -> DispatchResult {1506		Self::set_scoped_property_permission(1507			collection,1508			sender,1509			PropertyScope::None,1510			property_permission,1511		)1512	}15131514	/// Set collection property permission with scope.1515	///1516	/// * `collection` - Collection handler.1517	/// * `sender` - The owner or administrator of the collection.1518	/// * `scope` - Property scope.1519	/// * `property_permission` - Property permission.1520	pub fn set_scoped_property_permission(1521		collection: &CollectionHandle<T>,1522		sender: &T::CrossAccountId,1523		scope: PropertyScope,1524		property_permission: PropertyKeyPermission,1525	) -> DispatchResult {1526		collection.check_is_owner_or_admin(sender)?;15271528		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);1529		let current_permission = all_permissions.get(&property_permission.key);1530		if matches![1531			current_permission,1532			Some(PropertyPermission { mutable: false, .. })1533		] {1534			return Err(<Error<T>>::NoPermission.into());1535		}15361537		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {1538			let property_permission = property_permission.clone();1539			permissions.try_scoped_set(1540				scope,1541				property_permission.key,1542				property_permission.permission,1543			)1544		})1545		.map_err(<Error<T>>::from)?;15461547		Self::deposit_event(Event::PropertyPermissionSet(1548			collection.id,1549			property_permission.key,1550		));1551		<PalletEvm<T>>::deposit_log(1552			erc::CollectionHelpersEvents::CollectionChanged {1553				collection_id: eth::collection_id_to_address(collection.id),1554			}1555			.to_log(T::ContractAddress::get()),1556		);15571558		Ok(())1559	}15601561	/// Set token property permission.1562	///1563	/// * `collection` - Collection handler.1564	/// * `sender` - The owner or administrator of the collection.1565	/// * `property_permissions` - Property permissions.1566	#[transactional]1567	pub fn set_token_property_permissions(1568		collection: &CollectionHandle<T>,1569		sender: &T::CrossAccountId,1570		property_permissions: Vec<PropertyKeyPermission>,1571	) -> DispatchResult {1572		Self::set_scoped_token_property_permissions(1573			collection,1574			sender,1575			PropertyScope::None,1576			property_permissions,1577		)1578	}15791580	/// Set token property permission with scope.1581	///1582	/// * `collection` - Collection handler.1583	/// * `sender` - The owner or administrator of the collection.1584	/// * `scope` - Property scope.1585	/// * `property_permissions` - Property permissions.1586	#[transactional]1587	pub fn set_scoped_token_property_permissions(1588		collection: &CollectionHandle<T>,1589		sender: &T::CrossAccountId,1590		scope: PropertyScope,1591		property_permissions: Vec<PropertyKeyPermission>,1592	) -> DispatchResult {1593		for prop_pemission in property_permissions {1594			Self::set_scoped_property_permission(collection, sender, scope, prop_pemission)?;1595		}15961597		Ok(())1598	}15991600	/// Get collection property.1601	pub fn get_collection_property(1602		collection_id: CollectionId,1603		key: &PropertyKey,1604	) -> Option<PropertyValue> {1605		Self::collection_properties(collection_id).get(key).cloned()1606	}16071608	/// Convert byte vector to property key vector.1609	pub fn bytes_keys_to_property_keys(1610		keys: Vec<Vec<u8>>,1611	) -> Result<Vec<PropertyKey>, DispatchError> {1612		keys.into_iter()1613			.map(|key| -> Result<PropertyKey, DispatchError> {1614				key.try_into()1615					.map_err(|_| <Error<T>>::PropertyKeyIsTooLong.into())1616			})1617			.collect::<Result<Vec<PropertyKey>, DispatchError>>()1618	}16191620	/// Get properties according to given keys.1621	pub fn filter_collection_properties(1622		collection_id: CollectionId,1623		keys: Option<Vec<PropertyKey>>,1624	) -> Result<Vec<Property>, DispatchError> {1625		let properties = Self::collection_properties(collection_id);16261627		let properties = keys1628			.map(|keys| {1629				keys.into_iter()1630					.filter_map(|key| {1631						properties.get(&key).map(|value| Property {1632							key,1633							value: value.clone(),1634						})1635					})1636					.collect()1637			})1638			.unwrap_or_else(|| {1639				properties1640					.into_iter()1641					.map(|(key, value)| Property { key, value })1642					.collect()1643			});16441645		Ok(properties)1646	}16471648	/// Get property permissions according to given keys.1649	pub fn filter_property_permissions(1650		collection_id: CollectionId,1651		keys: Option<Vec<PropertyKey>>,1652	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {1653		let permissions = Self::property_permissions(collection_id);16541655		let key_permissions = keys1656			.map(|keys| {1657				keys.into_iter()1658					.filter_map(|key| {1659						permissions1660							.get(&key)1661							.map(|permission| PropertyKeyPermission {1662								key,1663								permission: permission.clone(),1664							})1665					})1666					.collect()1667			})1668			.unwrap_or_else(|| {1669				permissions1670					.into_iter()1671					.map(|(key, permission)| PropertyKeyPermission { key, permission })1672					.collect()1673			});16741675		Ok(key_permissions)1676	}16771678	/// Toggle `user` participation in the `collection`'s allow list.1679	/// #### Store read/writes1680	/// 1 writes1681	pub fn toggle_allowlist(1682		collection: &CollectionHandle<T>,1683		sender: &T::CrossAccountId,1684		user: &T::CrossAccountId,1685		allowed: bool,1686	) -> DispatchResult {1687		collection.check_is_owner_or_admin(sender)?;16881689		// =========16901691		if allowed {1692			<Allowlist<T>>::insert((collection.id, user), true);1693			Self::deposit_event(Event::<T>::AllowListAddressAdded(1694				collection.id,1695				user.clone(),1696			));1697		} else {1698			<Allowlist<T>>::remove((collection.id, user));1699			Self::deposit_event(Event::<T>::AllowListAddressRemoved(1700				collection.id,1701				user.clone(),1702			));1703		}17041705		<PalletEvm<T>>::deposit_log(1706			erc::CollectionHelpersEvents::CollectionChanged {1707				collection_id: eth::collection_id_to_address(collection.id),1708			}1709			.to_log(T::ContractAddress::get()),1710		);17111712		Ok(())1713	}17141715	/// Toggle `user` participation in the `collection`'s admin list.1716	/// #### Store read/writes1717	/// 2 reads, 2 writes1718	pub fn toggle_admin(1719		collection: &CollectionHandle<T>,1720		sender: &T::CrossAccountId,1721		user: &T::CrossAccountId,1722		admin: bool,1723	) -> DispatchResult {1724		collection.check_is_internal()?;1725		collection.check_is_owner(sender)?;17261727		let is_admin = <IsAdmin<T>>::get((collection.id, user));1728		if is_admin == admin {1729			if admin {1730				return Ok(());1731			} else {1732				return Err(Error::<T>::UserIsNotCollectionAdmin.into());1733			}1734		}1735		let amount = <AdminAmount<T>>::get(collection.id);17361737		// =========17381739		if admin {1740			let amount = amount1741				.checked_add(1)1742				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1743			ensure!(1744				amount <= Self::collection_admins_limit(),1745				<Error<T>>::CollectionAdminCountExceeded,1746			);17471748			<AdminAmount<T>>::insert(collection.id, amount);1749			<IsAdmin<T>>::insert((collection.id, user), true);17501751			Self::deposit_event(Event::<T>::CollectionAdminAdded(1752				collection.id,1753				user.clone(),1754			));1755		} else {1756			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1757			<IsAdmin<T>>::remove((collection.id, user));17581759			Self::deposit_event(Event::<T>::CollectionAdminRemoved(1760				collection.id,1761				user.clone(),1762			));1763		}17641765		<PalletEvm<T>>::deposit_log(1766			erc::CollectionHelpersEvents::CollectionChanged {1767				collection_id: eth::collection_id_to_address(collection.id),1768			}1769			.to_log(T::ContractAddress::get()),1770		);17711772		Ok(())1773	}17741775	/// Update collection limits.1776	pub fn update_limits(1777		user: &T::CrossAccountId,1778		collection: &mut CollectionHandle<T>,1779		new_limit: CollectionLimits,1780	) -> DispatchResult {1781		collection.check_is_internal()?;1782		collection.check_is_owner_or_admin(user)?;17831784		collection.limits =1785			Self::clamp_limits(collection.mode.clone(), &collection.limits, new_limit)?;17861787		Self::deposit_event(Event::<T>::CollectionLimitSet(collection.id));1788		<PalletEvm<T>>::deposit_log(1789			erc::CollectionHelpersEvents::CollectionChanged {1790				collection_id: eth::collection_id_to_address(collection.id),1791			}1792			.to_log(T::ContractAddress::get()),1793		);17941795		collection.save()1796	}17971798	/// Merge set fields from `new_limit` to `old_limit`.1799	fn clamp_limits(1800		mode: CollectionMode,1801		old_limit: &CollectionLimits,1802		mut new_limit: CollectionLimits,1803	) -> Result<CollectionLimits, DispatchError> {1804		let limits = old_limit;1805		limit_default!(old_limit, new_limit,1806			account_token_ownership_limit => ensure!(1807				new_limit <= MAX_TOKEN_OWNERSHIP,1808				<Error<T>>::CollectionLimitBoundsExceeded,1809			),1810			sponsored_data_size => ensure!(1811				new_limit <= CUSTOM_DATA_LIMIT,1812				<Error<T>>::CollectionLimitBoundsExceeded,1813			),18141815			sponsored_data_rate_limit => {},1816			token_limit => ensure!(1817				old_limit >= new_limit && new_limit > 0,1818				<Error<T>>::CollectionTokenLimitExceeded1819			),18201821			sponsor_transfer_timeout(match mode {1822				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1823				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1824				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1825			}) => ensure!(1826				new_limit <= MAX_SPONSOR_TIMEOUT,1827				<Error<T>>::CollectionLimitBoundsExceeded,1828			),1829			sponsor_approve_timeout => {},1830			owner_can_transfer => ensure!(1831				!limits.owner_can_transfer_instaled() ||1832				old_limit || !new_limit,1833				<Error<T>>::OwnerPermissionsCantBeReverted,1834			),1835			owner_can_destroy => ensure!(1836				old_limit || !new_limit,1837				<Error<T>>::OwnerPermissionsCantBeReverted,1838			),1839			transfers_enabled => {},1840		);1841		Ok(new_limit)1842	}18431844	/// Update collection permissions.1845	pub fn update_permissions(1846		user: &T::CrossAccountId,1847		collection: &mut CollectionHandle<T>,1848		new_permission: CollectionPermissions,1849	) -> DispatchResult {1850		collection.check_is_internal()?;1851		collection.check_is_owner_or_admin(user)?;1852		collection.permissions = Self::clamp_permissions(1853			collection.mode.clone(),1854			&collection.permissions,1855			new_permission,1856		)?;18571858		Self::deposit_event(Event::<T>::CollectionPermissionSet(collection.id));1859		<PalletEvm<T>>::deposit_log(1860			erc::CollectionHelpersEvents::CollectionChanged {1861				collection_id: eth::collection_id_to_address(collection.id),1862			}1863			.to_log(T::ContractAddress::get()),1864		);18651866		collection.save()1867	}18681869	/// Merge set fields from `new_permission` to `old_permission`.1870	fn clamp_permissions(1871		_mode: CollectionMode,1872		old_permission: &CollectionPermissions,1873		mut new_permission: CollectionPermissions,1874	) -> Result<CollectionPermissions, DispatchError> {1875		limit_default_clone!(old_permission, new_permission,1876			access => {},1877			mint_mode => {},1878			nesting => { /* todo check for permissive, if only it gets out of benchmarks */ },1879		);1880		Ok(new_permission)1881	}18821883	/// Repair possibly broken properties of a collection.1884	pub fn repair_collection(collection_id: CollectionId) -> DispatchResult {1885		CollectionProperties::<T>::mutate(collection_id, |properties| {1886			properties.recompute_consumed_space();1887		});18881889		Ok(())1890	}1891}18921893/// Indicates unsupported methods by returning [Error::UnsupportedOperation].1894#[macro_export]1895macro_rules! unsupported {1896	($runtime:path) => {1897		Err($crate::Error::<$runtime>::UnsupportedOperation.into())1898	};1899}19001901/// Return weights for various worst-case operations.1902pub trait CommonWeightInfo<CrossAccountId> {1903	/// Weight of item creation.1904	fn create_item(data: &CreateItemData) -> Weight {1905		Self::create_multiple_items(from_ref(data))1906	}19071908	/// Weight of items creation.1909	fn create_multiple_items(amount: &[CreateItemData]) -> Weight;19101911	/// Weight of items creation.1912	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;19131914	/// The weight of the burning item.1915	fn burn_item() -> Weight;19161917	/// Property setting weight.1918	///1919	/// * `amount`- The number of properties to set.1920	fn set_collection_properties(amount: u32) -> Weight;19211922	/// Collection property deletion weight.1923	///1924	/// * `amount`- The number of properties to set.1925	fn delete_collection_properties(amount: u32) -> Weight {1926		Self::set_collection_properties(amount)1927	}19281929	/// Token property setting weight.1930	///1931	/// * `amount`- The number of properties to set.1932	fn set_token_properties(amount: u32) -> Weight;19331934	/// Token property deletion weight.1935	///1936	/// * `amount`- The number of properties to delete.1937	fn delete_token_properties(amount: u32) -> Weight {1938		Self::set_token_properties(amount)1939	}19401941	/// Token property permissions set weight.1942	///1943	/// * `amount`- The number of property permissions to set.1944	fn set_token_property_permissions(amount: u32) -> Weight;19451946	/// Transfer price of the token or its parts.1947	fn transfer() -> Weight;19481949	/// The price of setting the permission of the operation from another user.1950	fn approve() -> Weight;19511952	/// The price of setting the permission of the operation from another user for eth mirror.1953	fn approve_from() -> Weight;19541955	/// Transfer price from another user.1956	fn transfer_from() -> Weight;19571958	/// The price of burning a token from another user.1959	fn burn_from() -> Weight;19601961	/// The price of setting approval for all1962	fn set_allowance_for_all() -> Weight;19631964	/// The price of repairing an item.1965	fn force_repair_item() -> Weight;1966}19671968/// Weight info extension trait for refungible pallet.1969pub trait RefungibleExtensionsWeightInfo {1970	/// Weight of token repartition.1971	fn repartition() -> Weight;1972}19731974/// Common collection operations.1975///1976/// It wraps methods in Fungible, Nonfungible and Refungible pallets1977/// and adds weight info.1978pub trait CommonCollectionOperations<T: Config> {1979	/// Create token.1980	///1981	/// * `sender` - The user who mint the token and pays for the transaction.1982	/// * `to` - The user who will own the token.1983	/// * `data` - Token data.1984	/// * `nesting_budget` - A budget that can be spent on nesting tokens.1985	fn create_item(1986		&self,1987		sender: T::CrossAccountId,1988		to: T::CrossAccountId,1989		data: CreateItemData,1990		nesting_budget: &dyn Budget,1991	) -> DispatchResultWithPostInfo;19921993	/// Create multiple tokens.1994	///1995	/// * `sender` - The user who mint the token and pays for the transaction.1996	/// * `to` - The user who will own the token.1997	/// * `data` - Token data.1998	/// * `nesting_budget` - A budget that can be spent on nesting tokens.1999	fn create_multiple_items(2000		&self,2001		sender: T::CrossAccountId,2002		to: T::CrossAccountId,2003		data: Vec<CreateItemData>,2004		nesting_budget: &dyn Budget,2005	) -> DispatchResultWithPostInfo;20062007	/// Create multiple tokens.2008	///2009	/// * `sender` - The user who mint the token and pays for the transaction.2010	/// * `to` - The user who will own the token.2011	/// * `data` - Token data.2012	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2013	fn create_multiple_items_ex(2014		&self,2015		sender: T::CrossAccountId,2016		data: CreateItemExData<T::CrossAccountId>,2017		nesting_budget: &dyn Budget,2018	) -> DispatchResultWithPostInfo;20192020	/// Burn token.2021	///2022	/// * `sender` - The user who owns the token.2023	/// * `token` - Token id that will burned.2024	/// * `amount` - The number of parts of the token that will be burned.2025	fn burn_item(2026		&self,2027		sender: T::CrossAccountId,2028		token: TokenId,2029		amount: u128,2030	) -> DispatchResultWithPostInfo;20312032	/// Set collection properties.2033	///2034	/// * `sender` - Must be either the owner of the collection or its admin.2035	/// * `properties` - Properties to be set.2036	fn set_collection_properties(2037		&self,2038		sender: T::CrossAccountId,2039		properties: Vec<Property>,2040	) -> DispatchResultWithPostInfo;20412042	/// Delete collection properties.2043	///2044	/// * `sender` - Must be either the owner of the collection or its admin.2045	/// * `properties` - The properties to be removed.2046	fn delete_collection_properties(2047		&self,2048		sender: &T::CrossAccountId,2049		property_keys: Vec<PropertyKey>,2050	) -> DispatchResultWithPostInfo;20512052	/// Set token properties.2053	///2054	/// The appropriate [`PropertyPermission`] for the token property2055	/// must be set with [`Self::set_token_property_permissions`].2056	///2057	/// * `sender` - Must be either the owner of the token or its admin.2058	/// * `token_id` - The token for which the properties are being set.2059	/// * `properties` - Properties to be set.2060	/// * `budget` - Budget for setting properties.2061	fn set_token_properties(2062		&self,2063		sender: T::CrossAccountId,2064		token_id: TokenId,2065		properties: Vec<Property>,2066		budget: &dyn Budget,2067	) -> DispatchResultWithPostInfo;20682069	/// Remove token properties.2070	///2071	/// The appropriate [`PropertyPermission`] for the token property2072	/// must be set with [`Self::set_token_property_permissions`].2073	///2074	/// * `sender` - Must be either the owner of the token or its admin.2075	/// * `token_id` - The token for which the properties are being remove.2076	/// * `property_keys` - Keys to remove corresponding properties.2077	/// * `budget` - Budget for removing properties.2078	fn delete_token_properties(2079		&self,2080		sender: T::CrossAccountId,2081		token_id: TokenId,2082		property_keys: Vec<PropertyKey>,2083		budget: &dyn Budget,2084	) -> DispatchResultWithPostInfo;20852086	/// Get token properties raw map.2087	///2088	/// * `token_id` - The token which properties are needed.2089	fn get_token_properties_raw(&self, token_id: TokenId) -> Option<TokenProperties>;20902091	/// Set token properties raw map.2092	///2093	/// * `token_id` - The token for which the properties are being set.2094	/// * `map` - The raw map containing the token's properties.2095	fn set_token_properties_raw(&self, token_id: TokenId, map: TokenProperties);20962097	/// Set token property permissions.2098	///2099	/// * `sender` - Must be either the owner of the token or its admin.2100	/// * `token_id` - The token for which the properties are being set.2101	/// * `property_permissions` - Property permissions to be set.2102	/// * `budget` - Budget for setting properties.2103	fn set_token_property_permissions(2104		&self,2105		sender: &T::CrossAccountId,2106		property_permissions: Vec<PropertyKeyPermission>,2107	) -> DispatchResultWithPostInfo;21082109	/// Transfer amount of token pieces.2110	///2111	/// * `sender` - Donor user.2112	/// * `to` - Recepient user.2113	/// * `token` - The token of which parts are being sent.2114	/// * `amount` - The number of parts of the token that will be transferred.2115	/// * `budget` - The maximum budget that can be spent on the transfer.2116	fn transfer(2117		&self,2118		sender: T::CrossAccountId,2119		to: T::CrossAccountId,2120		token: TokenId,2121		amount: u128,2122		budget: &dyn Budget,2123	) -> DispatchResultWithPostInfo;21242125	/// Grant access to another account to transfer parts of the token owned by the calling user via [Self::transfer_from].2126	///2127	/// * `sender` - The user who grants access to the token.2128	/// * `spender` - The user to whom the rights are granted.2129	/// * `token` - The token to which access is granted.2130	/// * `amount` - The amount of pieces that another user can dispose of.2131	fn approve(2132		&self,2133		sender: T::CrossAccountId,2134		spender: T::CrossAccountId,2135		token: TokenId,2136		amount: u128,2137	) -> DispatchResultWithPostInfo;21382139	/// Grant access to another account to transfer parts of the token owned by the calling user's eth mirror via [Self::transfer_from].2140	///2141	/// * `sender` - The user who grants access to the token.2142	/// * `from` - Spender's eth mirror.2143	/// * `to` - The user to whom the rights are granted.2144	/// * `token` - The token to which access is granted.2145	/// * `amount` - The amount of pieces that another user can dispose of.2146	fn approve_from(2147		&self,2148		sender: T::CrossAccountId,2149		from: T::CrossAccountId,2150		to: T::CrossAccountId,2151		token: TokenId,2152		amount: u128,2153	) -> DispatchResultWithPostInfo;21542155	/// Send parts of a token owned by another user.2156	///2157	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2158	///2159	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2160	/// * `from` - The user who owns the token.2161	/// * `to` - Recepient user.2162	/// * `token` - The token of which parts are being sent.2163	/// * `amount` - The number of parts of the token that will be transferred.2164	/// * `budget` - The maximum budget that can be spent on the transfer.2165	fn transfer_from(2166		&self,2167		sender: T::CrossAccountId,2168		from: T::CrossAccountId,2169		to: T::CrossAccountId,2170		token: TokenId,2171		amount: u128,2172		budget: &dyn Budget,2173	) -> DispatchResultWithPostInfo;21742175	/// Burn parts of a token owned by another user.2176	///2177	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2178	///2179	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2180	/// * `from` - The user who owns the token.2181	/// * `token` - The token of which parts are being sent.2182	/// * `amount` - The number of parts of the token that will be transferred.2183	/// * `budget` - The maximum budget that can be spent on the burn.2184	fn burn_from(2185		&self,2186		sender: T::CrossAccountId,2187		from: T::CrossAccountId,2188		token: TokenId,2189		amount: u128,2190		budget: &dyn Budget,2191	) -> DispatchResultWithPostInfo;21922193	/// Check permission to nest token.2194	///2195	/// * `sender` - The user who initiated the check.2196	/// * `from` - The token that is checked for embedding.2197	/// * `under` - Token under which to check.2198	/// * `budget` - The maximum budget that can be spent on the check.2199	fn check_nesting(2200		&self,2201		sender: &T::CrossAccountId,2202		from: (CollectionId, TokenId),2203		under: TokenId,2204		budget: &dyn Budget,2205	) -> DispatchResult;22062207	/// Nest one token into another.2208	///2209	/// * `under` - Token holder.2210	/// * `to_nest` - Nested token.2211	fn nest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22122213	/// Unnest token.2214	///2215	/// * `under` - Token holder.2216	/// * `to_nest` - Token to unnest.2217	fn unnest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22182219	/// Get all user tokens.2220	///2221	/// * `account` - Account for which you need to get tokens.2222	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;22232224	/// Get all the tokens in the collection.2225	fn collection_tokens(&self) -> Vec<TokenId>;22262227	/// Check if the token exists.2228	///2229	/// * `token` - Id token to check.2230	fn token_exists(&self, token: TokenId) -> bool;22312232	/// Get the id of the last minted token.2233	fn last_token_id(&self) -> TokenId;22342235	/// Get the owner of the token.2236	///2237	/// * `token` - The token for which you need to find out the owner.2238	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError>;22392240	/// Checks if the `maybe_owner` is the indirect owner of the `token`.2241	///2242	/// * `token` - Id token to check.2243	/// * `maybe_owner` - The account to check.2244	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2245	fn check_token_indirect_owner(2246		&self,2247		token: TokenId,2248		maybe_owner: &T::CrossAccountId,2249		nesting_budget: &dyn Budget,2250	) -> Result<bool, DispatchError>;22512252	/// Returns 10 tokens owners in no particular order.2253	///2254	/// * `token` - The token for which you need to find out the owners.2255	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId>;22562257	/// Get the value of the token property by key.2258	///2259	/// * `token` - Token with the property to get.2260	/// * `key` - Property name.2261	fn token_property(&self, token_id: TokenId, key: &PropertyKey) -> Option<PropertyValue>;22622263	/// Get a set of token properties by key vector.2264	///2265	/// * `token` - Token with the property to get.2266	/// * `keys` - Vector of property keys. If this parameter is [None](sp_std::result::Result),2267	/// then all properties are returned.2268	fn token_properties(&self, token: TokenId, keys: Option<Vec<PropertyKey>>) -> Vec<Property>;22692270	/// Amount of unique collection tokens2271	fn total_supply(&self) -> u32;22722273	/// Amount of different tokens account has.2274	///2275	/// * `account` - The account for which need to get the balance.2276	fn account_balance(&self, account: T::CrossAccountId) -> u32;22772278	/// Amount of specific token account have.2279	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;22802281	/// Amount of token pieces2282	fn total_pieces(&self, token: TokenId) -> Option<u128>;22832284	/// Get the number of parts of the token that a trusted user can manage.2285	///2286	/// * `sender` - Trusted user.2287	/// * `spender` - Owner of the token.2288	/// * `token` - The token for which to get the value.2289	fn allowance(2290		&self,2291		sender: T::CrossAccountId,2292		spender: T::CrossAccountId,2293		token: TokenId,2294	) -> u128;22952296	/// Get extension for RFT collection.2297	fn refungible_extensions(&self) -> Option<&dyn RefungibleExtensions<T>> {2298		None2299	}23002301	/// Get XCM extensions.2302	fn xcm_extensions(&self) -> Option<&dyn XcmExtensions<T>> {2303		None2304	}23052306	/// The `operator` is allowed to transfer all tokens of the `owner` on their behalf.2307	/// * `owner` - Token owner2308	/// * `operator` - Operator2309	/// * `approve` - Should operator status be granted or revoked?2310	fn set_allowance_for_all(2311		&self,2312		owner: T::CrossAccountId,2313		operator: T::CrossAccountId,2314		approve: bool,2315	) -> DispatchResultWithPostInfo;23162317	/// Tells whether the given `owner` approves the `operator`.2318	fn allowance_for_all(&self, owner: T::CrossAccountId, operator: T::CrossAccountId) -> bool;23192320	/// Repairs a possibly broken item.2321	fn repair_item(&self, token: TokenId) -> DispatchResultWithPostInfo;2322}23232324/// Extension for RFT collection.2325pub trait RefungibleExtensions<T>2326where2327	T: Config,2328{2329	/// Change the number of parts of the token.2330	///2331	/// When the value changes down, this function is equivalent to burning parts of the token.2332	///2333	/// * `sender` - The user calling the repartition operation. Must be the owner of the token.2334	/// * `token` - The token for which you want to change the number of parts.2335	/// * `amount` - The new value of the parts of the token.2336	fn repartition(2337		&self,2338		sender: &T::CrossAccountId,2339		token: TokenId,2340		amount: u128,2341	) -> DispatchResultWithPostInfo;2342}23432344/// XCM extensions for fungible and NFT collections2345pub trait XcmExtensions<T>2346where2347	T: Config,2348{2349	/// Does the token have children?2350	fn token_has_children(&self, _token: TokenId) -> bool {2351		false2352	}23532354	/// Create a collection's item using a transaction.2355	///2356	/// This function performs additional XCM-related checks before the actual creation.2357	#[transactional]2358	fn create_item(2359		&self,2360		depositor: &T::CrossAccountId,2361		to: T::CrossAccountId,2362		data: CreateItemData,2363		nesting_budget: &dyn Budget,2364	) -> Result<TokenId, DispatchError> {2365		if T::CrossTokenAddressMapping::is_token_address(&to) {2366			return unsupported!(T);2367		}23682369		self.create_item_internal(depositor, to, data, nesting_budget)2370	}23712372	/// Create a collection's item.2373	fn create_item_internal(2374		&self,2375		depositor: &T::CrossAccountId,2376		to: T::CrossAccountId,2377		data: CreateItemData,2378		nesting_budget: &dyn Budget,2379	) -> Result<TokenId, DispatchError>;23802381	/// Transfer an item from the `from` account to the `to` account using a transaction.2382	///2383	/// This function performs additional XCM-related checks before the actual transfer.2384	#[transactional]2385	fn transfer_item(2386		&self,2387		depositor: &T::CrossAccountId,2388		from: &T::CrossAccountId,2389		to: &T::CrossAccountId,2390		token: TokenId,2391		amount: u128,2392		nesting_budget: &dyn Budget,2393	) -> DispatchResult {2394		if T::CrossTokenAddressMapping::is_token_address(to) {2395			return unsupported!(T);2396		}23972398		if self.token_has_children(token) {2399			return unsupported!(T);2400		}24012402		self.transfer_item_internal(depositor, from, to, token, amount, nesting_budget)2403	}24042405	/// Transfer an item from the `from` account to the `to` account.2406	fn transfer_item_internal(2407		&self,2408		depositor: &T::CrossAccountId,2409		from: &T::CrossAccountId,2410		to: &T::CrossAccountId,2411		token: TokenId,2412		amount: u128,2413		nesting_budget: &dyn Budget,2414	) -> DispatchResult;24152416	/// Burn a collection's item using a transaction.2417	#[transactional]2418	fn burn_item(&self, from: T::CrossAccountId, token: TokenId, amount: u128) -> DispatchResult {2419		self.burn_item_internal(from, token, amount)2420	}24212422	/// Burn a collection's item.2423	fn burn_item_internal(2424		&self,2425		from: T::CrossAccountId,2426		token: TokenId,2427		amount: u128,2428	) -> DispatchResult;2429}24302431/// Merge [`DispatchResult`] with [`Weight`] into [`DispatchResultWithPostInfo`].2432///2433/// Used for [`CommonCollectionOperations`] implementations and flexible enough to do so.2434pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {2435	let post_info = PostDispatchInfo {2436		actual_weight: Some(weight),2437		pays_fee: Pays::Yes,2438	};2439	match res {2440		Ok(()) => Ok(post_info),2441		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),2442	}2443}24442445impl<T: Config> From<PropertiesError> for Error<T> {2446	fn from(error: PropertiesError) -> Self {2447		match error {2448			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,2449			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,2450			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,2451			PropertiesError::PropertyKeyIsTooLong => Self::PropertyKeyIsTooLong,2452			PropertiesError::EmptyPropertyKey => Self::EmptyPropertyKey,2453		}2454	}2455}24562457/// The type-safe interface for writing properties (setting or deleting) to tokens.2458/// It has two distinct implementations for newly created tokens and existing ones.2459///2460/// This type utilizes the lazy evaluation to avoid repeating the computation2461/// of several performance-heavy or PoV-heavy tasks,2462/// such as checking the indirect ownership or reading the token property permissions.2463pub struct PropertyWriter<'a, WriterVariant, T, Handle> {2464	collection: &'a Handle,2465	collection_lazy_info: PropertyWriterLazyCollectionInfo<'a>,2466	_phantom: PhantomData<(T, WriterVariant)>,2467}24682469impl<'a, T, Handle, WriterVariant> PropertyWriter<'a, WriterVariant, T, Handle>2470where2471	T: Config,2472	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2473{2474	fn internal_write_token_properties(2475		&mut self,2476		token_id: TokenId,2477		mut token_lazy_info: PropertyWriterLazyTokenInfo,2478		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,2479		log: evm_coder::ethereum::Log,2480	) -> DispatchResult {2481		for (key, value) in properties_updates {2482			let permission = self2483				.collection_lazy_info2484				.property_permissions2485				.value()2486				.get(&key)2487				.cloned()2488				.unwrap_or_else(PropertyPermission::none);24892490			match permission {2491				PropertyPermission { mutable: false, .. }2492					if token_lazy_info2493						.stored_properties2494						.value()2495						.get(&key)2496						.is_some() =>2497				{2498					return Err(<Error<T>>::NoPermission.into());2499				}25002501				PropertyPermission {2502					collection_admin,2503					token_owner,2504					..2505				} => check_token_permissions::<T>(2506					collection_admin,2507					token_owner,2508					&mut self.collection_lazy_info.is_collection_admin,2509					&mut token_lazy_info.is_token_owner,2510					&mut token_lazy_info.is_token_exist,2511				)?,2512			}25132514			match value {2515				Some(value) => {2516					token_lazy_info2517						.stored_properties2518						.value_mut()2519						.try_set(key.clone(), value)2520						.map_err(<Error<T>>::from)?;25212522					<Pallet<T>>::deposit_event(Event::TokenPropertySet(2523						self.collection.id,2524						token_id,2525						key,2526					));2527				}2528				None => {2529					token_lazy_info2530						.stored_properties2531						.value_mut()2532						.remove(&key)2533						.map_err(<Error<T>>::from)?;25342535					<Pallet<T>>::deposit_event(Event::TokenPropertyDeleted(2536						self.collection.id,2537						token_id,2538						key,2539					));2540				}2541			}2542		}25432544		let properties_changed = token_lazy_info.stored_properties.has_value();2545		if properties_changed {2546			<PalletEvm<T>>::deposit_log(log);25472548			self.collection2549				.set_token_properties_raw(token_id, token_lazy_info.stored_properties.into_inner());2550		}25512552		Ok(())2553	}2554}25552556/// A helper structure for the [`PropertyWriter`] that holds2557/// the collection-related info. The info is loaded using lazy evaluation.2558/// This info is common for any token for which we write properties.2559pub struct PropertyWriterLazyCollectionInfo<'a> {2560	is_collection_admin: LazyValue<'a, bool>,2561	property_permissions: LazyValue<'a, PropertiesPermissionMap>,2562}25632564/// A helper structure for the [`PropertyWriter`] that holds2565/// the token-related info. The info is loaded using lazy evaluation.2566pub struct PropertyWriterLazyTokenInfo<'a> {2567	is_token_exist: LazyValue<'a, bool>,2568	is_token_owner: LazyValue<'a, Result<bool, DispatchError>>,2569	stored_properties: LazyValue<'a, TokenProperties>,2570}25712572impl<'a> PropertyWriterLazyTokenInfo<'a> {2573	/// Create a lazy token info.2574	pub fn new(2575		check_token_exist: impl FnOnce() -> bool + 'a,2576		check_token_owner: impl FnOnce() -> Result<bool, DispatchError> + 'a,2577		get_token_properties: impl FnOnce() -> TokenProperties + 'a,2578	) -> Self {2579		Self {2580			is_token_exist: LazyValue::new(check_token_exist),2581			is_token_owner: LazyValue::new(check_token_owner),2582			stored_properties: LazyValue::new(get_token_properties),2583		}2584	}2585}25862587/// A marker structure that enables the writer implementation2588/// to provide the interface to write properties to **newly created** tokens.2589pub struct NewTokenPropertyWriter<T>(PhantomData<T>);2590impl<T: Config> NewTokenPropertyWriter<T> {2591	/// Creates a [`PropertyWriter`] for **newly created** tokens.2592	pub fn new<'a, Handle>(2593		collection: &'a Handle,2594		sender: &'a T::CrossAccountId,2595	) -> PropertyWriter<'a, Self, T, Handle>2596	where2597		T: Config,2598		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2599	{2600		PropertyWriter {2601			collection,2602			collection_lazy_info: PropertyWriterLazyCollectionInfo {2603				is_collection_admin: LazyValue::new(|| collection.is_owner_or_admin(sender)),2604				property_permissions: LazyValue::new(|| {2605					<Pallet<T>>::property_permissions(collection.id)2606				}),2607			},2608			_phantom: PhantomData,2609		}2610	}2611}26122613impl<'a, T, Handle> PropertyWriter<'a, NewTokenPropertyWriter<T>, T, Handle>2614where2615	T: Config,2616	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2617{2618	/// A function to write properties to a **newly created** token.2619	pub fn write_token_properties(2620		&mut self,2621		mint_target_is_sender: bool,2622		token_id: TokenId,2623		properties_updates: impl Iterator<Item = Property>,2624		log: evm_coder::ethereum::Log,2625	) -> DispatchResult {2626		let check_token_exist = || {2627			debug_assert!(self.collection.token_exists(token_id));2628			true2629		};26302631		let check_token_owner = || Ok(mint_target_is_sender);26322633		let get_token_properties = || {2634			debug_assert!(self.collection.get_token_properties_raw(token_id).is_none());2635			TokenProperties::new()2636		};26372638		self.internal_write_token_properties(2639			token_id,2640			PropertyWriterLazyTokenInfo::new(2641				check_token_exist,2642				check_token_owner,2643				get_token_properties,2644			),2645			properties_updates.map(|p| (p.key, Some(p.value))),2646			log,2647		)2648	}2649}26502651/// A marker structure that enables the writer implementation2652/// to provide the interface to write properties to **already existing** tokens.2653pub struct ExistingTokenPropertyWriter<T>(PhantomData<T>);2654impl<T: Config> ExistingTokenPropertyWriter<T> {2655	/// Creates a [`PropertyWriter`] for **already existing** tokens.2656	pub fn new<'a, Handle>(2657		collection: &'a Handle,2658		sender: &'a T::CrossAccountId,2659	) -> PropertyWriter<'a, Self, T, Handle>2660	where2661		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2662	{2663		PropertyWriter {2664			collection,2665			collection_lazy_info: PropertyWriterLazyCollectionInfo {2666				is_collection_admin: LazyValue::new(|| collection.is_owner_or_admin(sender)),2667				property_permissions: LazyValue::new(|| {2668					<Pallet<T>>::property_permissions(collection.id)2669				}),2670			},2671			_phantom: PhantomData,2672		}2673	}2674}26752676impl<'a, T, Handle> PropertyWriter<'a, ExistingTokenPropertyWriter<T>, T, Handle>2677where2678	T: Config,2679	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2680{2681	/// A function to write properties to an **already existing** token.2682	pub fn write_token_properties(2683		&mut self,2684		sender: &T::CrossAccountId,2685		token_id: TokenId,2686		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,2687		nesting_budget: &dyn Budget,2688		log: evm_coder::ethereum::Log,2689	) -> DispatchResult {2690		let check_token_exist = || self.collection.token_exists(token_id);2691		let check_token_owner = || {2692			self.collection2693				.check_token_indirect_owner(token_id, sender, nesting_budget)2694		};2695		let get_token_properties = || {2696			self.collection2697				.get_token_properties_raw(token_id)2698				.unwrap_or_default()2699		};27002701		self.internal_write_token_properties(2702			token_id,2703			PropertyWriterLazyTokenInfo::new(2704				check_token_exist,2705				check_token_owner,2706				get_token_properties,2707			),2708			properties_updates,2709			log,2710		)2711	}2712}27132714/// A marker structure that enables the writer implementation2715/// to benchmark the token properties writing.2716#[cfg(feature = "runtime-benchmarks")]2717pub struct BenchmarkPropertyWriter<T>(PhantomData<T>);27182719#[cfg(feature = "runtime-benchmarks")]2720impl<T: Config> BenchmarkPropertyWriter<T> {2721	/// Creates a [`PropertyWriter`] for benchmarking tokens properties writing.2722	pub fn new<'a, Handle>(2723		collection: &'a Handle,2724		collection_lazy_info: PropertyWriterLazyCollectionInfo<'a>,2725	) -> PropertyWriter<'a, Self, T, Handle>2726	where2727		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2728	{2729		PropertyWriter {2730			collection,2731			collection_lazy_info,2732			_phantom: PhantomData,2733		}2734	}27352736	/// Load the [`PropertyWriterLazyCollectionInfo`] from the storage.2737	pub fn load_collection_info<Handle>(2738		collection_handle: &Handle,2739		sender: &T::CrossAccountId,2740	) -> PropertyWriterLazyCollectionInfo<'static>2741	where2742		Handle: Deref<Target = CollectionHandle<T>>,2743	{2744		let is_collection_admin = collection_handle.is_owner_or_admin(sender);2745		let property_permissions = <Pallet<T>>::property_permissions(collection_handle.id);27462747		PropertyWriterLazyCollectionInfo {2748			is_collection_admin: LazyValue::new(move || is_collection_admin),2749			property_permissions: LazyValue::new(move || property_permissions),2750		}2751	}27522753	/// Load the [`PropertyWriterLazyTokenInfo`] with token properties from the storage.2754	pub fn load_token_properties<Handle>(2755		collection: &Handle,2756		token_id: TokenId,2757	) -> PropertyWriterLazyTokenInfo2758	where2759		Handle: CommonCollectionOperations<T>,2760	{2761		let stored_properties = collection2762			.get_token_properties_raw(token_id)2763			.unwrap_or_default();27642765		PropertyWriterLazyTokenInfo {2766			is_token_exist: LazyValue::new(|| true),2767			is_token_owner: LazyValue::new(|| Ok(true)),2768			stored_properties: LazyValue::new(move || stored_properties),2769		}2770	}2771}27722773#[cfg(feature = "runtime-benchmarks")]2774impl<'a, T, Handle> PropertyWriter<'a, BenchmarkPropertyWriter<T>, T, Handle>2775where2776	T: Config,2777	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2778{2779	/// A function to benchmark the writing of token properties.2780	pub fn write_token_properties(2781		&mut self,2782		token_id: TokenId,2783		properties_updates: impl Iterator<Item = Property>,2784		log: evm_coder::ethereum::Log,2785	) -> DispatchResult {2786		let check_token_exist = || true;2787		let check_token_owner = || Ok(true);2788		let get_token_properties = TokenProperties::new;27892790		self.internal_write_token_properties(2791			token_id,2792			PropertyWriterLazyTokenInfo::new(2793				check_token_exist,2794				check_token_owner,2795				get_token_properties,2796			),2797			properties_updates.map(|p| (p.key, Some(p.value))),2798			log,2799		)2800	}2801}28022803/// Computes the weight of writing properties to tokens.2804/// * `properties_nums` - The properties num of each created token.2805/// * `per_token_weight_weight` - The function to obtain the weight2806/// of writing properties from a token's properties num.2807pub fn write_token_properties_total_weight<T: Config, I: Fn(u32) -> Weight>(2808	properties_nums: impl Iterator<Item = u32>,2809	per_token_weight: I,2810) -> Weight {2811	let mut weight = properties_nums2812		.filter_map(|properties_num| {2813			if properties_num > 0 {2814				Some(per_token_weight(properties_num))2815			} else {2816				None2817			}2818		})2819		.fold(Weight::zero(), |a, b| a.saturating_add(b));28202821	if !weight.is_zero() {2822		// If we are here, it means the token properties were written at least once.2823		// Because of that, some common collection data was also loaded; we must add this weight.2824		// However, this common data was loaded only once, which is guaranteed by the `PropertyWriter`.28252826		weight = weight.saturating_add(<SelfWeightOf<T>>::property_writer_load_collection_info());2827	}28282829	weight2830}28312832#[cfg(any(feature = "tests", test))]2833#[allow(missing_docs)]2834pub mod tests {2835	use crate::{Config, DispatchError, DispatchResult, LazyValue};28362837	const fn to_bool(u: u8) -> bool {2838		u != 02839	}28402841	#[derive(Debug)]2842	pub struct TestCase {2843		pub collection_admin: bool,2844		pub is_collection_admin: bool,2845		pub token_owner: bool,2846		pub is_token_owner: bool,2847		pub no_permission: bool,2848	}28492850	impl TestCase {2851		const fn new(2852			collection_admin: u8,2853			is_collection_admin: u8,2854			token_owner: u8,2855			is_token_owner: u8,2856			no_permission: u8,2857		) -> Self {2858			Self {2859				collection_admin: to_bool(collection_admin),2860				is_collection_admin: to_bool(is_collection_admin),2861				token_owner: to_bool(token_owner),2862				is_token_owner: to_bool(is_token_owner),2863				no_permission: to_bool(no_permission),2864			}2865		}2866	}28672868	#[rustfmt::skip]2869	pub const TABLE: [TestCase; 16] = [2870		//                    ┌╴collection_admin2871		//                    │  ┌╴is_collection_admin2872		//                    │  │   ┌╴token_owner2873		//                    │  │   │  ┌╴is_token_ownership2874		//                    │  │   │  │   ┌╴no_permission2875		/*  0*/ TestCase::new(0, 0,  0, 0,  1),2876		/*  1*/ TestCase::new(0, 0,  0, 1,  1),2877		/*  2*/ TestCase::new(0, 0,  1, 0,  1),2878		/*  3*/ TestCase::new(0, 0,  1, 1,  0),2879		/*  4*/ TestCase::new(0, 1,  0, 0,  1),2880		/*  5*/ TestCase::new(0, 1,  0, 1,  1),2881		/*  6*/ TestCase::new(0, 1,  1, 0,  1),2882		/*  7*/ TestCase::new(0, 1,  1, 1,  0),2883		/*  8*/ TestCase::new(1, 0,  0, 0,  1),2884		/*  9*/ TestCase::new(1, 0,  0, 1,  1),2885		/* 10*/ TestCase::new(1, 0,  1, 0,  1),2886		/* 11*/ TestCase::new(1, 0,  1, 1,  0),2887		/* 12*/ TestCase::new(1, 1,  0, 0,  0),2888		/* 13*/ TestCase::new(1, 1,  0, 1,  0),2889		/* 14*/ TestCase::new(1, 1,  1, 0,  0),2890		/* 15*/ TestCase::new(1, 1,  1, 1,  0),2891	];28922893	pub fn check_token_permissions<T: Config>(2894		collection_admin_permitted: bool,2895		token_owner_permitted: bool,2896		is_collection_admin: &mut LazyValue<bool>,2897		check_token_ownership: &mut LazyValue<Result<bool, DispatchError>>,2898		check_token_existence: &mut LazyValue<bool>,2899	) -> DispatchResult {2900		crate::check_token_permissions::<T>(2901			collection_admin_permitted,2902			token_owner_permitted,2903			is_collection_admin,2904			check_token_ownership,2905			check_token_existence,2906		)2907	}2908}