git.delta.rocks / unique-network / refs/commits / 9c3e59a24962

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! # Common pallet18//!19//! The Common pallet provides functionality for handling collections.20//!21//! ## Overview22//!23//! The Common pallet provides an interface for common collection operations for different collection types24//! (see [CommonCollectionOperations]), as well as a generic dispatcher for these, see [dispatch] module.25//! It also provides this functionality to EVM, see [erc] and [eth] modules.26//!27//! The Common pallet provides functions for:28//!29//! - Setting and approving collection sponsor.30//! - Get\set\delete allow list.31//! - Get\set\delete collection properties.32//! - Get\set\delete collection property permissions.33//! - Get\set\delete token property permissions.34//! - Get\set\delete collection administrators.35//! - Checking access permissions.36//!37//! ### Terminology38//! **Collection sponsor** - For the collection, you can set a sponsor, at whose expense it will39//! be possible to mint tokens.40//!41//! **Allow list** - List of users who have the right to minting tokens.42//!43//! **Collection properties** - Collection properties are simply key-value stores where various44//! metadata can be placed.45//!46//! **Permissions on token properties** - For each property in the token can be set permission47//! to change, see [`PropertyPermission`].48//!49//! **Collection administrator** - For a collection, you can set administrators who have the right50//! to most actions on the collection.5152#![warn(missing_docs)]53#![cfg_attr(not(feature = "std"), no_std)]54extern crate alloc;5556use alloc::boxed::Box;57use core::{58	marker::PhantomData,59	ops::{Deref, DerefMut},60	slice::from_ref,61	unreachable,62};6364use evm_coder::ToLog;65use frame_support::{66	dispatch::{DispatchErrorWithPostInfo, DispatchResultWithPostInfo, Pays, PostDispatchInfo},67	ensure, fail,68	traits::{69		fungible::{Balanced, Debt, Inspect},70		tokens::{Imbalance, Precision, Preservation},71		Get,72	},73	transactional,74};75pub use pallet::*;76use pallet_evm::{account::CrossAccountId, Pallet as PalletEvm};77use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};78use sp_core::H160;79use sp_runtime::{traits::Zero, ArithmeticError, DispatchError, DispatchResult};80use sp_std::vec::Vec;81use sp_weights::Weight;82use up_data_structs::{83	budget::Budget, mapping::TokenAddressMapping, AccessMode, Collection, CollectionId,84	CollectionLimits, CollectionMode, CollectionPermissions,85	CollectionProperties as CollectionPropertiesT, CollectionStats, CreateCollectionData,86	CreateItemData, CreateItemExData, PhantomType, PropertiesError, PropertiesPermissionMap,87	Property, PropertyKey, PropertyKeyPermission, PropertyPermission, PropertyScope, PropertyValue,88	RpcCollection, RpcCollectionFlags, SponsoringRateLimit, SponsorshipState, TokenChild,89	TokenData, TokenId, TokenOwnerError, TokenProperties, TrySetProperty, COLLECTION_ADMINS_LIMIT,90	COLLECTION_NUMBER_LIMIT, CUSTOM_DATA_LIMIT, FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,91	MAX_SPONSOR_TIMEOUT, MAX_TOKEN_OWNERSHIP, MAX_TOKEN_PREFIX_LENGTH,92	NFT_SPONSOR_TRANSFER_TIMEOUT, REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,93};94use up_pov_estimate_rpc::PovInfo;9596#[cfg(feature = "runtime-benchmarks")]97pub mod benchmarking;98pub mod dispatch;99pub mod erc;100pub mod eth;101pub mod helpers;102#[allow(missing_docs)]103pub mod weights;104105use weights::WeightInfo;106107/// Weight info.108pub type SelfWeightOf<T> = <T as Config>::WeightInfo;109110/// Collection handle contains information about collection data and id.111/// Also provides functionality to count consumed gas.112///113/// CollectionHandle is used as a generic wrapper for collections of all types (except native fungible).114/// It allows to perform common operations and queries on any collection type,115/// both completely general for all, as well as their respective implementations of [`CommonCollectionOperations`].116#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]117pub struct CollectionHandle<T: Config> {118	/// Collection id119	pub id: CollectionId,120	collection: Collection<T::AccountId>,121	/// Substrate recorder for counting consumed gas122	pub recorder: SubstrateRecorder<T>,123}124125impl<T: Config> WithRecorder<T> for CollectionHandle<T> {126	fn recorder(&self) -> &SubstrateRecorder<T> {127		&self.recorder128	}129	fn into_recorder(self) -> SubstrateRecorder<T> {130		self.recorder131	}132}133134impl<T: Config> CollectionHandle<T> {135	/// Same as [CollectionHandle::new] but with an explicit gas limit.136	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {137		Self::new_with_recorder(id, SubstrateRecorder::new(gas_limit))138	}139140	/// Same as [CollectionHandle::new] but with an existed [`SubstrateRecorder`].141	pub fn new_with_recorder(id: CollectionId, recorder: SubstrateRecorder<T>) -> Option<Self> {142		<CollectionById<T>>::get(id).map(|collection| Self {143			id,144			collection,145			recorder,146		})147	}148149	/// Retrives collection data from storage and creates collection handle with default parameters.150	/// If collection not found return `None`151	pub fn new(id: CollectionId) -> Option<Self> {152		Self::new_with_gas_limit(id, u64::MAX)153	}154155	/// Same as [`CollectionHandle::new`] but if collection not found [CollectionNotFound](Error::CollectionNotFound) returned.156	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {157		Ok(Self::new(id).ok_or(<Error<T>>::CollectionNotFound)?)158	}159160	/// Consume gas for reading.161	pub fn consume_store_reads(162		&self,163		reads: u64,164	) -> pallet_evm_coder_substrate::execution::Result<()> {165		self.recorder().consume_store_reads(reads)166	}167168	/// Consume gas for writing.169	pub fn consume_store_writes(170		&self,171		writes: u64,172	) -> pallet_evm_coder_substrate::execution::Result<()> {173		self.recorder().consume_store_writes(writes)174	}175176	/// Consume gas for reading and writing.177	pub fn consume_store_reads_and_writes(178		&self,179		reads: u64,180		writes: u64,181	) -> pallet_evm_coder_substrate::execution::Result<()> {182		self.recorder()183			.consume_store_reads_and_writes(reads, writes)184	}185186	/// Save collection to storage.187	pub fn save(&self) -> DispatchResult {188		<CollectionById<T>>::insert(self.id, &self.collection);189		Ok(())190	}191192	/// Set collection sponsor.193	///194	/// Unique collections allows sponsoring for certain actions.195	/// This method allows you to set the sponsor of the collection.196	/// In order for sponsorship to become active, it must be confirmed through [`Self::confirm_sponsorship`].197	pub fn set_sponsor(198		&mut self,199		sender: &T::CrossAccountId,200		sponsor: T::AccountId,201	) -> DispatchResult {202		self.check_is_internal()?;203		self.check_is_owner_or_admin(sender)?;204205		self.collection.sponsorship = SponsorshipState::Unconfirmed(sponsor.clone());206207		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(self.id, sponsor));208		<PalletEvm<T>>::deposit_log(209			erc::CollectionHelpersEvents::CollectionChanged {210				collection_id: eth::collection_id_to_address(self.id),211			}212			.to_log(T::ContractAddress::get()),213		);214215		self.save()216	}217218	/// Force set `sponsor`.219	///220	/// Differs from [`set_sponsor`][`Self::set_sponsor`] in that confirmation221	/// from the `sponsor` is not required.222	///223	/// # Arguments224	///225	/// * `sponsor`: ID of the account of the sponsor-to-be.226	pub fn force_set_sponsor(&mut self, sponsor: T::AccountId) -> DispatchResult {227		self.check_is_internal()?;228229		self.collection.sponsorship = SponsorshipState::Confirmed(sponsor.clone());230231		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(self.id, sponsor.clone()));232		<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(self.id, sponsor));233		<PalletEvm<T>>::deposit_log(234			erc::CollectionHelpersEvents::CollectionChanged {235				collection_id: eth::collection_id_to_address(self.id),236			}237			.to_log(T::ContractAddress::get()),238		);239240		self.save()241	}242243	/// Confirm sponsorship244	///245	/// In order for the sponsorship to become active, the user set as the sponsor must confirm their participation.246	/// Before confirming sponsorship, the user must be specified as the sponsor of the collection via [`Self::set_sponsor`].247	pub fn confirm_sponsorship(&mut self, sender: &T::AccountId) -> DispatchResult {248		self.check_is_internal()?;249		ensure!(250			self.collection.sponsorship.pending_sponsor() == Some(sender),251			Error::<T>::ConfirmSponsorshipFail252		);253254		self.collection.sponsorship = SponsorshipState::Confirmed(sender.clone());255256		<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(self.id, sender.clone()));257		<PalletEvm<T>>::deposit_log(258			erc::CollectionHelpersEvents::CollectionChanged {259				collection_id: eth::collection_id_to_address(self.id),260			}261			.to_log(T::ContractAddress::get()),262		);263264		self.save()265	}266267	/// Remove collection sponsor.268	pub fn remove_sponsor(&mut self, sender: &T::CrossAccountId) -> DispatchResult {269		self.check_is_internal()?;270		self.check_is_owner_or_admin(sender)?;271272		self.collection.sponsorship = SponsorshipState::Disabled;273274		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(self.id));275		<PalletEvm<T>>::deposit_log(276			erc::CollectionHelpersEvents::CollectionChanged {277				collection_id: eth::collection_id_to_address(self.id),278			}279			.to_log(T::ContractAddress::get()),280		);281		self.save()282	}283284	/// Force remove `sponsor`.285	///286	/// Differs from `remove_sponsor` in that287	/// it doesn't require consent from the `owner` of the collection.288	pub fn force_remove_sponsor(&mut self) -> DispatchResult {289		self.check_is_internal()?;290291		self.collection.sponsorship = SponsorshipState::Disabled;292293		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(self.id));294		<PalletEvm<T>>::deposit_log(295			erc::CollectionHelpersEvents::CollectionChanged {296				collection_id: eth::collection_id_to_address(self.id),297			}298			.to_log(T::ContractAddress::get()),299		);300		self.save()301	}302303	/// Checks that the collection was created with, and must be operated upon through **Unique API**.304	/// Now check only the `external` flag and if it's **true**, then return [`Error::CollectionIsExternal`] error.305	pub fn check_is_internal(&self) -> DispatchResult {306		if self.flags.external {307			return Err(<Error<T>>::CollectionIsExternal)?;308		}309310		Ok(())311	}312313	/// Checks that the collection was created with, and must be operated upon through an **assimilated API**.314	/// Now check only the `external` flag and if it's **false**, then return [`Error::CollectionIsInternal`] error.315	pub fn check_is_external(&self) -> DispatchResult {316		if !self.flags.external {317			return Err(<Error<T>>::CollectionIsInternal)?;318		}319320		Ok(())321	}322}323324impl<T: Config> Deref for CollectionHandle<T> {325	type Target = Collection<T::AccountId>;326327	fn deref(&self) -> &Self::Target {328		&self.collection329	}330}331332impl<T: Config> DerefMut for CollectionHandle<T> {333	fn deref_mut(&mut self) -> &mut Self::Target {334		&mut self.collection335	}336}337338impl<T: Config> CollectionHandle<T> {339	/// Checks if the `user` is the owner of the collection.340	pub fn check_is_owner(&self, user: &T::CrossAccountId) -> DispatchResult {341		ensure!(*user.as_sub() == self.owner, <Error<T>>::NoPermission);342		Ok(())343	}344345	/// Returns **true** if the `user` is the owner or administrator of the collection.346	pub fn is_owner_or_admin(&self, user: &T::CrossAccountId) -> bool {347		*user.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, user))348	}349350	/// Checks if the `user` is the owner or administrator of the collection.351	pub fn check_is_owner_or_admin(&self, user: &T::CrossAccountId) -> DispatchResult {352		ensure!(self.is_owner_or_admin(user), <Error<T>>::NoPermission);353		Ok(())354	}355356	/// Returns **true** if357	/// * the `user`is a collection owner or admin358	/// * the collection limits allow the owner/admins to transfer/burn any collection token359	pub fn ignores_token_restrictions(&self, user: &T::CrossAccountId) -> bool {360		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)361	}362363	/// Return **true** if `user` does not have enough token parts, and he can ignore such restrictions.364	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> bool {365		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)366	}367368	/// Checks if the user is in the allow list. If not [Error::AddressNotInAllowlist] returns.369	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {370		ensure!(371			<Allowlist<T>>::get((self.id, user)),372			<Error<T>>::AddressNotInAllowlist373		);374		Ok(())375	}376377	/// Changes collection owner to another account378	/// #### Store read/writes379	/// 1 writes380	pub fn change_owner(381		&mut self,382		caller: T::CrossAccountId,383		new_owner: T::CrossAccountId,384	) -> DispatchResult {385		self.check_is_internal()?;386		self.check_is_owner(&caller)?;387		self.collection.owner = new_owner.as_sub().clone();388389		<Pallet<T>>::deposit_event(Event::<T>::CollectionOwnerChanged(390			self.id,391			new_owner.as_sub().clone(),392		));393		<PalletEvm<T>>::deposit_log(394			erc::CollectionHelpersEvents::CollectionChanged {395				collection_id: eth::collection_id_to_address(self.id),396			}397			.to_log(T::ContractAddress::get()),398		);399400		self.save()401	}402}403404#[frame_support::pallet]405pub mod pallet {406407	use dispatch::CollectionDispatch;408	use frame_support::{409		pallet_prelude::*, storage::Key, traits::StorageVersion, Blake2_128Concat,410	};411	use scale_info::TypeInfo;412	use up_data_structs::{mapping::TokenAddressMapping, TokenId};413	use weights::WeightInfo;414415	use super::*;416417	#[pallet::config]418	pub trait Config:419		frame_system::Config + pallet_evm_coder_substrate::Config + pallet_evm::Config + TypeInfo420	{421		/// Weight information for functions of this pallet.422		type WeightInfo: WeightInfo;423424		/// Events compatible with [`frame_system::Config::Event`].425		type RuntimeEvent: IsType<<Self as frame_system::Config>::RuntimeEvent> + From<Event<Self>>;426427		/// Handler of accounts and payment.428		type Currency: Balanced<Self::AccountId> + Inspect<Self::AccountId>;429430		/// Set price to create a collection.431		#[pallet::constant]432		type CollectionCreationPrice: Get<433			<<Self as Config>::Currency as Inspect<Self::AccountId>>::Balance,434		>;435436		/// Dispatcher of operations on collections.437		type CollectionDispatch: CollectionDispatch<Self>;438439		/// Account which holds the chain's treasury.440		type TreasuryAccountId: Get<Self::AccountId>;441442		/// Address under which the CollectionHelper contract would be available.443		#[pallet::constant]444		type ContractAddress: Get<H160>;445446		/// Mapper for token addresses to Ethereum addresses.447		type EvmTokenAddressMapping: TokenAddressMapping<H160>;448449		/// Mapper for token addresses to [`CrossAccountId`].450		type CrossTokenAddressMapping: TokenAddressMapping<Self::CrossAccountId>;451	}452453	const STORAGE_VERSION: StorageVersion = StorageVersion::new(1);454	/// Collection id for native fungible collction.455	pub const NATIVE_FUNGIBLE_COLLECTION_ID: CollectionId = CollectionId(0);456457	#[pallet::pallet]458	#[pallet::storage_version(STORAGE_VERSION)]459	pub struct Pallet<T>(_);460461	#[pallet::extra_constants]462	impl<T: Config> Pallet<T> {463		/// Maximum admins per collection.464		pub fn collection_admins_limit() -> u32 {465			COLLECTION_ADMINS_LIMIT466		}467	}468469	#[pallet::genesis_config]470	pub struct GenesisConfig<T>(PhantomData<T>);471472	impl<T: Config> Default for GenesisConfig<T> {473		fn default() -> Self {474			Self(Default::default())475		}476	}477478	#[pallet::genesis_build]479	impl<T: Config> BuildGenesisConfig for GenesisConfig<T> {480		fn build(&self) {481			StorageVersion::new(1).put::<Pallet<T>>();482		}483	}484485	impl<T: Config> Pallet<T> {486		/// Helper function that handles deposit events487		pub fn deposit_event(event: Event<T>) {488			let event = <T as Config>::RuntimeEvent::from(event);489			let event = event.into();490			<frame_system::Pallet<T>>::deposit_event(event)491		}492	}493494	#[pallet::event]495	pub enum Event<T: Config> {496		/// New collection was created497		CollectionCreated(498			/// Globally unique identifier of newly created collection.499			CollectionId,500			/// [`CollectionMode`] converted into _u8_.501			u8,502			/// Collection owner.503			T::AccountId,504		),505506		/// New collection was destroyed507		CollectionDestroyed(508			/// Globally unique identifier of collection.509			CollectionId,510		),511512		/// New item was created.513		ItemCreated(514			/// Id of the collection where item was created.515			CollectionId,516			/// Id of an item. Unique within the collection.517			TokenId,518			/// Owner of newly created item519			T::CrossAccountId,520			/// Always 1 for NFT521			u128,522		),523524		/// Collection item was burned.525		ItemDestroyed(526			/// Id of the collection where item was destroyed.527			CollectionId,528			/// Identifier of burned NFT.529			TokenId,530			/// Which user has destroyed its tokens.531			T::CrossAccountId,532			/// Amount of token pieces destroed. Always 1 for NFT.533			u128,534		),535536		/// Item was transferred537		Transfer(538			/// Id of collection to which item is belong.539			CollectionId,540			/// Id of an item.541			TokenId,542			/// Original owner of item.543			T::CrossAccountId,544			/// New owner of item.545			T::CrossAccountId,546			/// Amount of token pieces transfered. Always 1 for NFT.547			u128,548		),549550		/// Amount pieces of token owned by `sender` was approved for `spender`.551		Approved(552			/// Id of collection to which item is belong.553			CollectionId,554			/// Id of an item.555			TokenId,556			/// Original owner of item.557			T::CrossAccountId,558			/// Id for which the approval was granted.559			T::CrossAccountId,560			/// Amount of token pieces transfered. Always 1 for NFT.561			u128,562		),563564		/// A `sender` approves operations on all owned tokens for `spender`.565		ApprovedForAll(566			/// Id of collection to which item is belong.567			CollectionId,568			/// Owner of a wallet.569			T::CrossAccountId,570			/// Id for which operator status was granted or rewoked.571			T::CrossAccountId,572			/// Is operator status granted or revoked?573			bool,574		),575576		/// The colletion property has been added or edited.577		CollectionPropertySet(578			/// Id of collection to which property has been set.579			CollectionId,580			/// The property that was set.581			PropertyKey,582		),583584		/// The property has been deleted.585		CollectionPropertyDeleted(586			/// Id of collection to which property has been deleted.587			CollectionId,588			/// The property that was deleted.589			PropertyKey,590		),591592		/// The token property has been added or edited.593		TokenPropertySet(594			/// Identifier of the collection whose token has the property set.595			CollectionId,596			/// The token for which the property was set.597			TokenId,598			/// The property that was set.599			PropertyKey,600		),601602		/// The token property has been deleted.603		TokenPropertyDeleted(604			/// Identifier of the collection whose token has the property deleted.605			CollectionId,606			/// The token for which the property was deleted.607			TokenId,608			/// The property that was deleted.609			PropertyKey,610		),611612		/// The token property permission of a collection has been set.613		PropertyPermissionSet(614			/// ID of collection to which property permission has been set.615			CollectionId,616			/// The property permission that was set.617			PropertyKey,618		),619620		/// Address was added to the allow list.621		AllowListAddressAdded(622			/// ID of the affected collection.623			CollectionId,624			/// Address of the added account.625			T::CrossAccountId,626		),627628		/// Address was removed from the allow list.629		AllowListAddressRemoved(630			/// ID of the affected collection.631			CollectionId,632			/// Address of the removed account.633			T::CrossAccountId,634		),635636		/// Collection admin was added.637		CollectionAdminAdded(638			/// ID of the affected collection.639			CollectionId,640			/// Admin address.641			T::CrossAccountId,642		),643644		/// Collection admin was removed.645		CollectionAdminRemoved(646			/// ID of the affected collection.647			CollectionId,648			/// Removed admin address.649			T::CrossAccountId,650		),651652		/// Collection limits were set.653		CollectionLimitSet(654			/// ID of the affected collection.655			CollectionId,656		),657658		/// Collection owned was changed.659		CollectionOwnerChanged(660			/// ID of the affected collection.661			CollectionId,662			/// New owner address.663			T::AccountId,664		),665666		/// Collection permissions were set.667		CollectionPermissionSet(668			/// ID of the affected collection.669			CollectionId,670		),671672		/// Collection sponsor was set.673		CollectionSponsorSet(674			/// ID of the affected collection.675			CollectionId,676			/// New sponsor address.677			T::AccountId,678		),679680		/// New sponsor was confirm.681		SponsorshipConfirmed(682			/// ID of the affected collection.683			CollectionId,684			/// New sponsor address.685			T::AccountId,686		),687688		/// Collection sponsor was removed.689		CollectionSponsorRemoved(690			/// ID of the affected collection.691			CollectionId,692		),693	}694695	#[pallet::error]696	pub enum Error<T> {697		/// This collection does not exist.698		CollectionNotFound,699		/// Sender parameter and item owner must be equal.700		MustBeTokenOwner,701		/// No permission to perform action702		NoPermission,703		/// Destroying only empty collections is allowed704		CantDestroyNotEmptyCollection,705		/// Collection is not in mint mode.706		PublicMintingNotAllowed,707		/// Address is not in allow list.708		AddressNotInAllowlist,709710		/// Collection name can not be longer than 63 char.711		CollectionNameLimitExceeded,712		/// Collection description can not be longer than 255 char.713		CollectionDescriptionLimitExceeded,714		/// Token prefix can not be longer than 15 char.715		CollectionTokenPrefixLimitExceeded,716		/// Total collections bound exceeded.717		TotalCollectionsLimitExceeded,718		/// Exceeded max admin count719		CollectionAdminCountExceeded,720		/// Collection limit bounds per collection exceeded721		CollectionLimitBoundsExceeded,722		/// Tried to enable permissions which are only permitted to be disabled723		OwnerPermissionsCantBeReverted,724		/// Collection settings not allowing items transferring725		TransferNotAllowed,726		/// Account token limit exceeded per collection727		AccountTokenLimitExceeded,728		/// Collection token limit exceeded729		CollectionTokenLimitExceeded,730		/// Metadata flag frozen731		MetadataFlagFrozen,732733		/// Item does not exist734		TokenNotFound,735		/// Item is balance not enough736		TokenValueTooLow,737		/// Requested value is more than the approved738		ApprovedValueTooLow,739		/// Tried to approve more than owned740		CantApproveMoreThanOwned,741		/// Only spending from eth mirror could be approved742		AddressIsNotEthMirror,743744		/// Can't transfer tokens to ethereum zero address745		AddressIsZero,746747		/// The operation is not supported748		UnsupportedOperation,749750		/// Insufficient funds to perform an action751		NotSufficientFounds,752753		/// User does not satisfy the nesting rule754		UserIsNotAllowedToNest,755		/// Only tokens from specific collections may nest tokens under this one756		SourceCollectionIsNotAllowedToNest,757758		/// Tried to store more data than allowed in collection field759		CollectionFieldSizeExceeded,760761		/// Tried to store more property data than allowed762		NoSpaceForProperty,763764		/// Tried to store more property keys than allowed765		PropertyLimitReached,766767		/// Property key is too long768		PropertyKeyIsTooLong,769770		/// Only ASCII letters, digits, and symbols `_`, `-`, and `.` are allowed771		InvalidCharacterInPropertyKey,772773		/// Empty property keys are forbidden774		EmptyPropertyKey,775776		/// Tried to access an external collection with an internal API777		CollectionIsExternal,778779		/// Tried to access an internal collection with an external API780		CollectionIsInternal,781782		/// This address is not set as sponsor, use setCollectionSponsor first.783		ConfirmSponsorshipFail,784785		/// The user is not an administrator.786		UserIsNotCollectionAdmin,787788		/// Fungible tokens hold no ID, and the default value of TokenId for a fungible collection is 0.789		FungibleItemsHaveNoId,790791		/// Not Fungible item data used to mint in Fungible collection.792		NotFungibleDataUsedToMintFungibleCollectionToken,793	}794795	/// Storage of the count of created collections. Essentially contains the last collection ID.796	#[pallet::storage]797	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;798799	/// Storage of the count of deleted collections.800	#[pallet::storage]801	pub type DestroyedCollectionCount<T> =802		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;803804	/// Storage of collection info.805	#[pallet::storage]806	pub type CollectionById<T> = StorageMap<807		Hasher = Blake2_128Concat,808		Key = CollectionId,809		Value = Collection<<T as frame_system::Config>::AccountId>,810		QueryKind = OptionQuery,811	>;812813	/// Storage of collection properties.814	#[pallet::storage]815	#[pallet::getter(fn collection_properties)]816	pub type CollectionProperties<T> = StorageMap<817		Hasher = Blake2_128Concat,818		Key = CollectionId,819		Value = CollectionPropertiesT,820		QueryKind = ValueQuery,821	>;822823	/// Storage of token property permissions of a collection.824	#[pallet::storage]825	#[pallet::getter(fn property_permissions)]826	pub type CollectionPropertyPermissions<T> = StorageMap<827		Hasher = Blake2_128Concat,828		Key = CollectionId,829		Value = PropertiesPermissionMap,830		QueryKind = ValueQuery,831	>;832833	/// Storage of the amount of collection admins.834	#[pallet::storage]835	pub type AdminAmount<T> = StorageMap<836		Hasher = Blake2_128Concat,837		Key = CollectionId,838		Value = u32,839		QueryKind = ValueQuery,840	>;841842	/// List of collection admins.843	#[pallet::storage]844	pub type IsAdmin<T: Config> = StorageNMap<845		Key = (846			Key<Blake2_128Concat, CollectionId>,847			Key<Blake2_128Concat, T::CrossAccountId>,848		),849		Value = bool,850		QueryKind = ValueQuery,851	>;852853	/// Allowlisted collection users.854	#[pallet::storage]855	pub type Allowlist<T: Config> = StorageNMap<856		Key = (857			Key<Blake2_128Concat, CollectionId>,858			Key<Blake2_128Concat, T::CrossAccountId>,859		),860		Value = bool,861		QueryKind = ValueQuery,862	>;863864	/// Not used by code, exists only to provide some types to metadata.865	#[pallet::storage]866	pub type DummyStorageValue<T: Config> = StorageValue<867		Value = (868			CollectionStats,869			CollectionId,870			TokenId,871			TokenChild,872			PhantomType<(873				TokenData<T::CrossAccountId>,874				RpcCollection<T::AccountId>,875				// PoV Estimate Info876				PovInfo,877			)>,878		),879		QueryKind = OptionQuery,880	>;881}882883enum LazyValueState<'a, T> {884	Pending(Box<dyn FnOnce() -> T + 'a>),885	InProgress,886	Computed(T),887}888889/// Value representation with delayed initialization time.890pub struct LazyValue<'a, T> {891	state: LazyValueState<'a, T>,892}893894impl<'a, T> LazyValue<'a, T> {895	/// Create a new LazyValue.896	pub fn new(f: impl FnOnce() -> T + 'a) -> Self {897		Self {898			state: LazyValueState::Pending(Box::new(f)),899		}900	}901902	/// Get the value. If it is called the first time, the value will be initialized.903	pub fn value(&mut self) -> &T {904		self.force_value();905		self.value_mut()906	}907908	/// Get the value. If it is called the first time, the value will be initialized.909	pub fn value_mut(&mut self) -> &mut T {910		self.force_value();911912		if let LazyValueState::Computed(value) = &mut self.state {913			value914		} else {915			unreachable!()916		}917	}918919	fn into_inner(mut self) -> T {920		self.force_value();921		if let LazyValueState::Computed(value) = self.state {922			value923		} else {924			unreachable!()925		}926	}927928	/// Is value initialized?929	pub fn has_value(&self) -> bool {930		matches!(self.state, LazyValueState::Computed(_))931	}932933	fn force_value(&mut self) {934		use LazyValueState::*;935936		if self.has_value() {937			return;938		}939940		match sp_std::mem::replace(&mut self.state, InProgress) {941			Pending(f) => self.state = Computed(f()),942			_ => panic!("recursion isn't supported"),943		}944	}945}946947fn check_token_permissions<T: Config>(948	collection_admin_permitted: bool,949	token_owner_permitted: bool,950	is_collection_admin: &mut LazyValue<bool>,951	is_token_owner: &mut LazyValue<Result<bool, DispatchError>>,952	is_token_exist: &mut LazyValue<bool>,953) -> DispatchResult {954	if !(collection_admin_permitted && *is_collection_admin.value()955		|| token_owner_permitted && (*is_token_owner.value())?)956	{957		fail!(<Error<T>>::NoPermission);958	}959960	let token_exist_due_to_owner_check_success =961		is_token_owner.has_value() && (*is_token_owner.value())?;962963	// If the token owner check has occurred and succeeded,964	// we know the token exists (otherwise, the owner check must fail).965	if !token_exist_due_to_owner_check_success {966		// If the token owner check didn't occur,967		// we must check the token's existence ourselves.968		if !is_token_exist.value() {969			fail!(<Error<T>>::TokenNotFound);970		}971	}972973	Ok(())974}975976impl<T: Config> Pallet<T> {977	/// Enshure that receiver address is correct.978	///979	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens.980	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {981		ensure!(982			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,983			<Error<T>>::AddressIsZero984		);985		Ok(())986	}987988	/// Get a vector of collection admins.989	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {990		<IsAdmin<T>>::iter_prefix((collection,))991			.map(|(a, _)| a)992			.collect()993	}994995	/// Get a vector of users allowed to mint tokens.996	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {997		<Allowlist<T>>::iter_prefix((collection,))998			.map(|(a, _)| a)999			.collect()1000	}10011002	/// Is `user` allowed to mint token in `collection`.1003	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {1004		<Allowlist<T>>::get((collection, user))1005	}10061007	/// Get statistics of collections.1008	pub fn collection_stats() -> CollectionStats {1009		let created = <CreatedCollectionCount<T>>::get();1010		let destroyed = <DestroyedCollectionCount<T>>::get();1011		CollectionStats {1012			created: created.0,1013			destroyed: destroyed.0,1014			alive: created.0 - destroyed.0,1015		}1016	}10171018	/// Get the effective limits for the collection.1019	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {1020		let collection = <CollectionById<T>>::get(collection)?;1021		let limits = collection.limits;1022		let effective_limits = CollectionLimits {1023			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),1024			sponsored_data_size: Some(limits.sponsored_data_size()),1025			sponsored_data_rate_limit: Some(1026				limits1027					.sponsored_data_rate_limit1028					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),1029			),1030			token_limit: Some(limits.token_limit()),1031			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(1032				match collection.mode {1033					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1034					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1035					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1036				},1037			)),1038			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),1039			owner_can_transfer: Some(limits.owner_can_transfer()),1040			owner_can_destroy: Some(limits.owner_can_destroy()),1041			transfers_enabled: Some(limits.transfers_enabled()),1042		};10431044		Some(effective_limits)1045	}10461047	/// Returns information about the `collection` adapted for rpc.1048	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {1049		let Collection {1050			name,1051			description,1052			owner,1053			mode,1054			token_prefix,1055			sponsorship,1056			limits,1057			permissions,1058			flags,1059		} = <CollectionById<T>>::get(collection)?;10601061		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)1062			.into_iter()1063			.map(|(key, permission)| PropertyKeyPermission { key, permission })1064			.collect();10651066		let properties = <CollectionProperties<T>>::get(collection)1067			.into_iter()1068			.map(|(key, value)| Property { key, value })1069			.collect();10701071		let permissions = CollectionPermissions {1072			access: Some(permissions.access()),1073			mint_mode: Some(permissions.mint_mode()),1074			nesting: Some(permissions.nesting().clone()),1075		};10761077		Some(RpcCollection {1078			name: name.into_inner(),1079			description: description.into_inner(),1080			owner,1081			mode,1082			token_prefix: token_prefix.into_inner(),1083			sponsorship,1084			limits,1085			permissions,1086			token_property_permissions,1087			properties,1088			read_only: flags.external,10891090			flags: RpcCollectionFlags {1091				foreign: flags.foreign,1092				erc721metadata: flags.erc721metadata,1093			},1094		})1095	}1096}10971098macro_rules! limit_default {1099	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1100		$(1101			if let Some($new) = $new.$field {1102				let $old = $old.$field($($arg)?);1103				let _ = $new;1104				let _ = $old;1105				$check1106			} else {1107				$new.$field = $old.$field1108			}1109		)*1110	}};1111}1112macro_rules! limit_default_clone {1113	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1114		$(1115			if let Some($new) = $new.$field.clone() {1116				let $old = $old.$field($($arg)?);1117				let _ = $new;1118				let _ = $old;1119				$check1120			} else {1121				$new.$field = $old.$field.clone()1122			}1123		)*1124	}};1125}11261127impl<T: Config> Pallet<T> {1128	/// Create new collection.1129	///1130	/// * `owner` - The owner of the collection.1131	/// * `payer` - If set, the user that will pay a deposit for the collection creation.1132	/// * `data` - Description of the created collection.1133	/// * `is_special_collection` -- Whether this collection is a special one, i.e. can have special flags set.1134	pub fn init_collection(1135		owner: T::CrossAccountId,1136		payer: Option<T::CrossAccountId>,1137		is_special_collection: bool,1138		data: CreateCollectionData<T::CrossAccountId>,1139	) -> Result<CollectionId, DispatchError> {1140		if !is_special_collection {1141			ensure!(data.flags.is_allowed_for_user(), <Error<T>>::NoPermission);1142		}11431144		// Take a (non-refundable) deposit of collection creation1145		if let Some(payer) = payer {1146			let mut imbalance = <Debt<T::AccountId, <T as Config>::Currency>>::zero();1147			imbalance.subsume(<T as Config>::Currency::deposit(1148				&T::TreasuryAccountId::get(),1149				T::CollectionCreationPrice::get(),1150				Precision::Exact,1151			)?);1152			let credit =1153				<T as Config>::Currency::settle(payer.as_sub(), imbalance, Preservation::Preserve)1154					.map_err(|_| Error::<T>::NotSufficientFounds)?;11551156			debug_assert!(credit.peek().is_zero())1157		}11581159		Self::init_collection_internal(owner, data)1160	}11611162	fn init_collection_internal(1163		owner: T::CrossAccountId,1164		data: CreateCollectionData<T::CrossAccountId>,1165	) -> Result<CollectionId, DispatchError> {1166		{1167			ensure!(1168				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,1169				Error::<T>::CollectionTokenPrefixLimitExceeded1170			);1171		}11721173		let created_count = <CreatedCollectionCount<T>>::get()1174			.01175			.checked_add(1)1176			.ok_or(ArithmeticError::Overflow)?;1177		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;1178		let id = CollectionId(created_count);11791180		// bound Total number of collections1181		ensure!(1182			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,1183			<Error<T>>::TotalCollectionsLimitExceeded1184		);11851186		// =========11871188		let collection = Collection {1189			owner: owner.as_sub().clone(),1190			name: data.name,1191			mode: data.mode.clone(),1192			description: data.description,1193			token_prefix: data.token_prefix,1194			sponsorship: data1195				.pending_sponsor1196				.map(|sponsor| SponsorshipState::Unconfirmed(sponsor.as_sub().clone()))1197				.unwrap_or_default(),1198			limits: data1199				.limits1200				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))1201				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,1202			permissions: data1203				.permissions1204				.map(|permissions| {1205					Self::clamp_permissions(data.mode.clone(), &Default::default(), permissions)1206				})1207				.unwrap_or_else(|| Ok(CollectionPermissions::default()))?,1208			flags: data.flags,1209		};12101211		let mut collection_properties = CollectionPropertiesT::new();1212		collection_properties1213			.try_set_from_iter(data.properties.into_iter())1214			.map_err(<Error<T>>::from)?;12151216		CollectionProperties::<T>::insert(id, collection_properties);12171218		let mut token_props_permissions = PropertiesPermissionMap::new();1219		token_props_permissions1220			.try_set_from_iter(data.token_property_permissions.into_iter())1221			.map_err(<Error<T>>::from)?;12221223		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);12241225		let mut admin_amount = 0u32;1226		for admin in data.admin_list.iter() {1227			if !<IsAdmin<T>>::get((id, admin)) {1228				<IsAdmin<T>>::insert((id, admin), true);1229				admin_amount = admin_amount1230					.checked_add(1)1231					.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1232			}1233		}1234		ensure!(1235			admin_amount <= Self::collection_admins_limit(),1236			<Error<T>>::CollectionAdminCountExceeded,1237		);1238		<AdminAmount<T>>::insert(id, admin_amount);12391240		<CreatedCollectionCount<T>>::put(created_count);1241		<Pallet<T>>::deposit_event(Event::CollectionCreated(1242			id,1243			data.mode.id(),1244			owner.as_sub().clone(),1245		));1246		<PalletEvm<T>>::deposit_log(1247			erc::CollectionHelpersEvents::CollectionCreated {1248				owner: *owner.as_eth(),1249				collection_id: eth::collection_id_to_address(id),1250			}1251			.to_log(T::ContractAddress::get()),1252		);1253		<CollectionById<T>>::insert(id, collection);1254		Ok(id)1255	}12561257	/// Destroy collection.1258	///1259	/// * `collection` - Collection handler.1260	/// * `sender` - The owner or administrator of the collection.1261	pub fn destroy_collection(1262		collection: CollectionHandle<T>,1263		sender: &T::CrossAccountId,1264	) -> DispatchResult {1265		ensure!(1266			collection.limits.owner_can_destroy(),1267			<Error<T>>::NoPermission,1268		);1269		collection.check_is_owner(sender)?;12701271		let destroyed_collections = <DestroyedCollectionCount<T>>::get()1272			.01273			.checked_add(1)1274			.ok_or(ArithmeticError::Overflow)?;12751276		// =========12771278		<DestroyedCollectionCount<T>>::put(destroyed_collections);1279		<CollectionById<T>>::remove(collection.id);1280		<AdminAmount<T>>::remove(collection.id);1281		let _ = <IsAdmin<T>>::clear_prefix((collection.id,), u32::MAX, None);1282		let _ = <Allowlist<T>>::clear_prefix((collection.id,), u32::MAX, None);1283		<CollectionProperties<T>>::remove(collection.id);12841285		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));12861287		<PalletEvm<T>>::deposit_log(1288			erc::CollectionHelpersEvents::CollectionDestroyed {1289				collection_id: eth::collection_id_to_address(collection.id),1290			}1291			.to_log(T::ContractAddress::get()),1292		);1293		Ok(())1294	}12951296	/// This function sets or removes a collection properties according to1297	/// `properties_updates` contents:1298	/// * sets a property under the <key> with the value provided `(<key>, Some(<value>))`1299	/// * removes a property under the <key> if the value is `None` `(<key>, None)`.1300	///1301	/// This function fires an event for each property change.1302	/// In case of an error, all the changes (including the events) will be reverted1303	/// since the function is transactional.1304	#[transactional]1305	fn modify_collection_properties(1306		collection: &CollectionHandle<T>,1307		sender: &T::CrossAccountId,1308		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,1309	) -> DispatchResult {1310		collection.check_is_owner_or_admin(sender)?;13111312		let mut stored_properties = <CollectionProperties<T>>::get(collection.id);13131314		for (key, value) in properties_updates {1315			match value {1316				Some(value) => {1317					stored_properties1318						.try_set(key.clone(), value)1319						.map_err(<Error<T>>::from)?;13201321					Self::deposit_event(Event::CollectionPropertySet(collection.id, key));1322					<PalletEvm<T>>::deposit_log(1323						erc::CollectionHelpersEvents::CollectionChanged {1324							collection_id: eth::collection_id_to_address(collection.id),1325						}1326						.to_log(T::ContractAddress::get()),1327					);1328				}1329				None => {1330					stored_properties.remove(&key).map_err(<Error<T>>::from)?;13311332					Self::deposit_event(Event::CollectionPropertyDeleted(collection.id, key));1333					<PalletEvm<T>>::deposit_log(1334						erc::CollectionHelpersEvents::CollectionChanged {1335							collection_id: eth::collection_id_to_address(collection.id),1336						}1337						.to_log(T::ContractAddress::get()),1338					);1339				}1340			}1341		}13421343		<CollectionProperties<T>>::set(collection.id, stored_properties);13441345		Ok(())1346	}13471348	/// Sets or unsets the approval of a given operator.1349	///1350	/// The `operator` is allowed to transfer all token pieces of the `owner` on their behalf.1351	/// - `owner`: Token owner1352	/// - `operator`: Operator1353	/// - `approve`: Should operator status be granted or revoked?1354	pub fn set_allowance_for_all(1355		collection: &CollectionHandle<T>,1356		owner: &T::CrossAccountId,1357		operator: &T::CrossAccountId,1358		approve: bool,1359		set_allowance: impl FnOnce(),1360		log: evm_coder::ethereum::Log,1361	) -> DispatchResult {1362		if collection.permissions.access() == AccessMode::AllowList {1363			collection.check_allowlist(owner)?;1364			collection.check_allowlist(operator)?;1365		}13661367		Self::ensure_correct_receiver(operator)?;13681369		set_allowance();13701371		<PalletEvm<T>>::deposit_log(log);1372		Self::deposit_event(Event::ApprovedForAll(1373			collection.id,1374			owner.clone(),1375			operator.clone(),1376			approve,1377		));1378		Ok(())1379	}13801381	/// Set collection property.1382	///1383	/// * `collection` - Collection handler.1384	/// * `sender` - The owner or administrator of the collection.1385	/// * `property` - The property to set.1386	pub fn set_collection_property(1387		collection: &CollectionHandle<T>,1388		sender: &T::CrossAccountId,1389		property: Property,1390	) -> DispatchResult {1391		Self::set_collection_properties(collection, sender, [property].into_iter())1392	}13931394	/// Set a scoped collection property, where the scope is a special prefix1395	/// prohibiting a user access to change the property directly.1396	///1397	/// * `collection_id` - ID of the collection for which the property is being set.1398	/// * `scope` - Property scope.1399	/// * `property` - The property to set.1400	pub fn set_scoped_collection_property(1401		collection_id: CollectionId,1402		scope: PropertyScope,1403		property: Property,1404	) -> DispatchResult {1405		CollectionProperties::<T>::try_mutate(collection_id, |properties| {1406			properties.try_scoped_set(scope, property.key, property.value)1407		})1408		.map_err(<Error<T>>::from)?;14091410		Ok(())1411	}14121413	/// Set scoped collection properties, where the scope is a special prefix1414	/// prohibiting a user access to change the properties directly.1415	///1416	/// * `collection_id` - ID of the collection for which the properties is being set.1417	/// * `scope` - Property scope.1418	/// * `properties` - The properties to set.1419	pub fn set_scoped_collection_properties(1420		collection_id: CollectionId,1421		scope: PropertyScope,1422		properties: impl Iterator<Item = Property>,1423	) -> DispatchResult {1424		CollectionProperties::<T>::try_mutate(collection_id, |stored_properties| {1425			stored_properties.try_scoped_set_from_iter(scope, properties)1426		})1427		.map_err(<Error<T>>::from)?;14281429		Ok(())1430	}14311432	/// Set collection properties.1433	///1434	/// * `collection` - Collection handler.1435	/// * `sender` - The owner or administrator of the collection.1436	/// * `properties` - The properties to set.1437	pub fn set_collection_properties(1438		collection: &CollectionHandle<T>,1439		sender: &T::CrossAccountId,1440		properties: impl Iterator<Item = Property>,1441	) -> DispatchResult {1442		Self::modify_collection_properties(1443			collection,1444			sender,1445			properties.map(|property| (property.key, Some(property.value))),1446		)1447	}14481449	/// Delete collection property.1450	///1451	/// * `collection` - Collection handler.1452	/// * `sender` - The owner or administrator of the collection.1453	/// * `property` - The property to delete.1454	pub fn delete_collection_property(1455		collection: &CollectionHandle<T>,1456		sender: &T::CrossAccountId,1457		property_key: PropertyKey,1458	) -> DispatchResult {1459		Self::delete_collection_properties(collection, sender, [property_key].into_iter())1460	}14611462	/// Delete collection properties.1463	///1464	/// * `collection` - Collection handler.1465	/// * `sender` - The owner or administrator of the collection.1466	/// * `properties` - The properties to delete.1467	pub fn delete_collection_properties(1468		collection: &CollectionHandle<T>,1469		sender: &T::CrossAccountId,1470		property_keys: impl Iterator<Item = PropertyKey>,1471	) -> DispatchResult {1472		Self::modify_collection_properties(collection, sender, property_keys.map(|key| (key, None)))1473	}14741475	/// Set collection propetry permission without any checks.1476	///1477	/// Used for migrations.1478	///1479	/// * `collection` - Collection handler.1480	/// * `property_permissions` - Property permissions.1481	pub fn set_property_permission_unchecked(1482		collection: CollectionId,1483		property_permission: PropertyKeyPermission,1484	) -> DispatchResult {1485		<CollectionPropertyPermissions<T>>::try_mutate(collection, |permissions| {1486			permissions.try_set(property_permission.key, property_permission.permission)1487		})1488		.map_err(<Error<T>>::from)?;1489		Ok(())1490	}14911492	/// Set collection property permission.1493	///1494	/// * `collection` - Collection handler.1495	/// * `sender` - The owner or administrator of the collection.1496	/// * `property_permission` - Property permission.1497	pub fn set_property_permission(1498		collection: &CollectionHandle<T>,1499		sender: &T::CrossAccountId,1500		property_permission: PropertyKeyPermission,1501	) -> DispatchResult {1502		Self::set_scoped_property_permission(1503			collection,1504			sender,1505			PropertyScope::None,1506			property_permission,1507		)1508	}15091510	/// Set collection property permission with scope.1511	///1512	/// * `collection` - Collection handler.1513	/// * `sender` - The owner or administrator of the collection.1514	/// * `scope` - Property scope.1515	/// * `property_permission` - Property permission.1516	pub fn set_scoped_property_permission(1517		collection: &CollectionHandle<T>,1518		sender: &T::CrossAccountId,1519		scope: PropertyScope,1520		property_permission: PropertyKeyPermission,1521	) -> DispatchResult {1522		collection.check_is_owner_or_admin(sender)?;15231524		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);1525		let current_permission = all_permissions.get(&property_permission.key);1526		if matches![1527			current_permission,1528			Some(PropertyPermission { mutable: false, .. })1529		] {1530			return Err(<Error<T>>::NoPermission.into());1531		}15321533		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {1534			let property_permission = property_permission.clone();1535			permissions.try_scoped_set(1536				scope,1537				property_permission.key,1538				property_permission.permission,1539			)1540		})1541		.map_err(<Error<T>>::from)?;15421543		Self::deposit_event(Event::PropertyPermissionSet(1544			collection.id,1545			property_permission.key,1546		));1547		<PalletEvm<T>>::deposit_log(1548			erc::CollectionHelpersEvents::CollectionChanged {1549				collection_id: eth::collection_id_to_address(collection.id),1550			}1551			.to_log(T::ContractAddress::get()),1552		);15531554		Ok(())1555	}15561557	/// Set token property permission.1558	///1559	/// * `collection` - Collection handler.1560	/// * `sender` - The owner or administrator of the collection.1561	/// * `property_permissions` - Property permissions.1562	#[transactional]1563	pub fn set_token_property_permissions(1564		collection: &CollectionHandle<T>,1565		sender: &T::CrossAccountId,1566		property_permissions: Vec<PropertyKeyPermission>,1567	) -> DispatchResult {1568		Self::set_scoped_token_property_permissions(1569			collection,1570			sender,1571			PropertyScope::None,1572			property_permissions,1573		)1574	}15751576	/// Set token property permission with scope.1577	///1578	/// * `collection` - Collection handler.1579	/// * `sender` - The owner or administrator of the collection.1580	/// * `scope` - Property scope.1581	/// * `property_permissions` - Property permissions.1582	#[transactional]1583	pub fn set_scoped_token_property_permissions(1584		collection: &CollectionHandle<T>,1585		sender: &T::CrossAccountId,1586		scope: PropertyScope,1587		property_permissions: Vec<PropertyKeyPermission>,1588	) -> DispatchResult {1589		for prop_pemission in property_permissions {1590			Self::set_scoped_property_permission(collection, sender, scope, prop_pemission)?;1591		}15921593		Ok(())1594	}15951596	/// Get collection property.1597	pub fn get_collection_property(1598		collection_id: CollectionId,1599		key: &PropertyKey,1600	) -> Option<PropertyValue> {1601		Self::collection_properties(collection_id).get(key).cloned()1602	}16031604	/// Convert byte vector to property key vector.1605	pub fn bytes_keys_to_property_keys(1606		keys: Vec<Vec<u8>>,1607	) -> Result<Vec<PropertyKey>, DispatchError> {1608		keys.into_iter()1609			.map(|key| -> Result<PropertyKey, DispatchError> {1610				key.try_into()1611					.map_err(|_| <Error<T>>::PropertyKeyIsTooLong.into())1612			})1613			.collect::<Result<Vec<PropertyKey>, DispatchError>>()1614	}16151616	/// Get properties according to given keys.1617	pub fn filter_collection_properties(1618		collection_id: CollectionId,1619		keys: Option<Vec<PropertyKey>>,1620	) -> Result<Vec<Property>, DispatchError> {1621		let properties = Self::collection_properties(collection_id);16221623		let properties = keys1624			.map(|keys| {1625				keys.into_iter()1626					.filter_map(|key| {1627						properties.get(&key).map(|value| Property {1628							key,1629							value: value.clone(),1630						})1631					})1632					.collect()1633			})1634			.unwrap_or_else(|| {1635				properties1636					.into_iter()1637					.map(|(key, value)| Property { key, value })1638					.collect()1639			});16401641		Ok(properties)1642	}16431644	/// Get property permissions according to given keys.1645	pub fn filter_property_permissions(1646		collection_id: CollectionId,1647		keys: Option<Vec<PropertyKey>>,1648	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {1649		let permissions = Self::property_permissions(collection_id);16501651		let key_permissions = keys1652			.map(|keys| {1653				keys.into_iter()1654					.filter_map(|key| {1655						permissions1656							.get(&key)1657							.map(|permission| PropertyKeyPermission {1658								key,1659								permission: permission.clone(),1660							})1661					})1662					.collect()1663			})1664			.unwrap_or_else(|| {1665				permissions1666					.into_iter()1667					.map(|(key, permission)| PropertyKeyPermission { key, permission })1668					.collect()1669			});16701671		Ok(key_permissions)1672	}16731674	/// Toggle `user` participation in the `collection`'s allow list.1675	/// #### Store read/writes1676	/// 1 writes1677	pub fn toggle_allowlist(1678		collection: &CollectionHandle<T>,1679		sender: &T::CrossAccountId,1680		user: &T::CrossAccountId,1681		allowed: bool,1682	) -> DispatchResult {1683		collection.check_is_owner_or_admin(sender)?;16841685		// =========16861687		if allowed {1688			<Allowlist<T>>::insert((collection.id, user), true);1689			Self::deposit_event(Event::<T>::AllowListAddressAdded(1690				collection.id,1691				user.clone(),1692			));1693		} else {1694			<Allowlist<T>>::remove((collection.id, user));1695			Self::deposit_event(Event::<T>::AllowListAddressRemoved(1696				collection.id,1697				user.clone(),1698			));1699		}17001701		<PalletEvm<T>>::deposit_log(1702			erc::CollectionHelpersEvents::CollectionChanged {1703				collection_id: eth::collection_id_to_address(collection.id),1704			}1705			.to_log(T::ContractAddress::get()),1706		);17071708		Ok(())1709	}17101711	/// Toggle `user` participation in the `collection`'s admin list.1712	/// #### Store read/writes1713	/// 2 reads, 2 writes1714	pub fn toggle_admin(1715		collection: &CollectionHandle<T>,1716		sender: &T::CrossAccountId,1717		user: &T::CrossAccountId,1718		admin: bool,1719	) -> DispatchResult {1720		collection.check_is_internal()?;1721		collection.check_is_owner(sender)?;17221723		let is_admin = <IsAdmin<T>>::get((collection.id, user));1724		if is_admin == admin {1725			if admin {1726				return Ok(());1727			} else {1728				return Err(Error::<T>::UserIsNotCollectionAdmin.into());1729			}1730		}1731		let amount = <AdminAmount<T>>::get(collection.id);17321733		// =========17341735		if admin {1736			let amount = amount1737				.checked_add(1)1738				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1739			ensure!(1740				amount <= Self::collection_admins_limit(),1741				<Error<T>>::CollectionAdminCountExceeded,1742			);17431744			<AdminAmount<T>>::insert(collection.id, amount);1745			<IsAdmin<T>>::insert((collection.id, user), true);17461747			Self::deposit_event(Event::<T>::CollectionAdminAdded(1748				collection.id,1749				user.clone(),1750			));1751		} else {1752			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1753			<IsAdmin<T>>::remove((collection.id, user));17541755			Self::deposit_event(Event::<T>::CollectionAdminRemoved(1756				collection.id,1757				user.clone(),1758			));1759		}17601761		<PalletEvm<T>>::deposit_log(1762			erc::CollectionHelpersEvents::CollectionChanged {1763				collection_id: eth::collection_id_to_address(collection.id),1764			}1765			.to_log(T::ContractAddress::get()),1766		);17671768		Ok(())1769	}17701771	/// Update collection limits.1772	pub fn update_limits(1773		user: &T::CrossAccountId,1774		collection: &mut CollectionHandle<T>,1775		new_limit: CollectionLimits,1776	) -> DispatchResult {1777		collection.check_is_internal()?;1778		collection.check_is_owner_or_admin(user)?;17791780		collection.limits =1781			Self::clamp_limits(collection.mode.clone(), &collection.limits, new_limit)?;17821783		Self::deposit_event(Event::<T>::CollectionLimitSet(collection.id));1784		<PalletEvm<T>>::deposit_log(1785			erc::CollectionHelpersEvents::CollectionChanged {1786				collection_id: eth::collection_id_to_address(collection.id),1787			}1788			.to_log(T::ContractAddress::get()),1789		);17901791		collection.save()1792	}17931794	/// Merge set fields from `new_limit` to `old_limit`.1795	fn clamp_limits(1796		mode: CollectionMode,1797		old_limit: &CollectionLimits,1798		mut new_limit: CollectionLimits,1799	) -> Result<CollectionLimits, DispatchError> {1800		let limits = old_limit;1801		limit_default!(old_limit, new_limit,1802			account_token_ownership_limit => ensure!(1803				new_limit <= MAX_TOKEN_OWNERSHIP,1804				<Error<T>>::CollectionLimitBoundsExceeded,1805			),1806			sponsored_data_size => ensure!(1807				new_limit <= CUSTOM_DATA_LIMIT,1808				<Error<T>>::CollectionLimitBoundsExceeded,1809			),18101811			sponsored_data_rate_limit => {},1812			token_limit => ensure!(1813				old_limit >= new_limit && new_limit > 0,1814				<Error<T>>::CollectionTokenLimitExceeded1815			),18161817			sponsor_transfer_timeout(match mode {1818				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1819				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1820				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1821			}) => ensure!(1822				new_limit <= MAX_SPONSOR_TIMEOUT,1823				<Error<T>>::CollectionLimitBoundsExceeded,1824			),1825			sponsor_approve_timeout => {},1826			owner_can_transfer => ensure!(1827				!limits.owner_can_transfer_instaled() ||1828				old_limit || !new_limit,1829				<Error<T>>::OwnerPermissionsCantBeReverted,1830			),1831			owner_can_destroy => ensure!(1832				old_limit || !new_limit,1833				<Error<T>>::OwnerPermissionsCantBeReverted,1834			),1835			transfers_enabled => {},1836		);1837		Ok(new_limit)1838	}18391840	/// Update collection permissions.1841	pub fn update_permissions(1842		user: &T::CrossAccountId,1843		collection: &mut CollectionHandle<T>,1844		new_permission: CollectionPermissions,1845	) -> DispatchResult {1846		collection.check_is_internal()?;1847		collection.check_is_owner_or_admin(user)?;1848		collection.permissions = Self::clamp_permissions(1849			collection.mode.clone(),1850			&collection.permissions,1851			new_permission,1852		)?;18531854		Self::deposit_event(Event::<T>::CollectionPermissionSet(collection.id));1855		<PalletEvm<T>>::deposit_log(1856			erc::CollectionHelpersEvents::CollectionChanged {1857				collection_id: eth::collection_id_to_address(collection.id),1858			}1859			.to_log(T::ContractAddress::get()),1860		);18611862		collection.save()1863	}18641865	/// Merge set fields from `new_permission` to `old_permission`.1866	fn clamp_permissions(1867		_mode: CollectionMode,1868		old_permission: &CollectionPermissions,1869		mut new_permission: CollectionPermissions,1870	) -> Result<CollectionPermissions, DispatchError> {1871		limit_default_clone!(old_permission, new_permission,1872			access => {},1873			mint_mode => {},1874			nesting => { /* todo check for permissive, if only it gets out of benchmarks */ },1875		);1876		Ok(new_permission)1877	}18781879	/// Repair possibly broken properties of a collection.1880	pub fn repair_collection(collection_id: CollectionId) -> DispatchResult {1881		CollectionProperties::<T>::mutate(collection_id, |properties| {1882			properties.recompute_consumed_space();1883		});18841885		Ok(())1886	}1887}18881889/// Indicates unsupported methods by returning [Error::UnsupportedOperation].1890#[macro_export]1891macro_rules! unsupported {1892	($runtime:path) => {1893		Err($crate::Error::<$runtime>::UnsupportedOperation.into())1894	};1895}18961897/// Return weights for various worst-case operations.1898pub trait CommonWeightInfo<CrossAccountId> {1899	/// Weight of item creation.1900	fn create_item(data: &CreateItemData) -> Weight {1901		Self::create_multiple_items(from_ref(data))1902	}19031904	/// Weight of items creation.1905	fn create_multiple_items(amount: &[CreateItemData]) -> Weight;19061907	/// Weight of items creation.1908	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;19091910	/// The weight of the burning item.1911	fn burn_item() -> Weight;19121913	/// Property setting weight.1914	///1915	/// * `amount`- The number of properties to set.1916	fn set_collection_properties(amount: u32) -> Weight;19171918	/// Collection property deletion weight.1919	///1920	/// * `amount`- The number of properties to set.1921	fn delete_collection_properties(amount: u32) -> Weight {1922		Self::set_collection_properties(amount)1923	}19241925	/// Token property setting weight.1926	///1927	/// * `amount`- The number of properties to set.1928	fn set_token_properties(amount: u32) -> Weight;19291930	/// Token property deletion weight.1931	///1932	/// * `amount`- The number of properties to delete.1933	fn delete_token_properties(amount: u32) -> Weight {1934		Self::set_token_properties(amount)1935	}19361937	/// Token property permissions set weight.1938	///1939	/// * `amount`- The number of property permissions to set.1940	fn set_token_property_permissions(amount: u32) -> Weight;19411942	/// Transfer price of the token or its parts.1943	fn transfer() -> Weight;19441945	/// The price of setting the permission of the operation from another user.1946	fn approve() -> Weight;19471948	/// The price of setting the permission of the operation from another user for eth mirror.1949	fn approve_from() -> Weight;19501951	/// Transfer price from another user.1952	fn transfer_from() -> Weight;19531954	/// The price of burning a token from another user.1955	fn burn_from() -> Weight;19561957	/// The price of setting approval for all1958	fn set_allowance_for_all() -> Weight;19591960	/// The price of repairing an item.1961	fn force_repair_item() -> Weight;1962}19631964/// Weight info extension trait for refungible pallet.1965pub trait RefungibleExtensionsWeightInfo {1966	/// Weight of token repartition.1967	fn repartition() -> Weight;1968}19691970/// Common collection operations.1971///1972/// It wraps methods in Fungible, Nonfungible and Refungible pallets1973/// and adds weight info.1974pub trait CommonCollectionOperations<T: Config> {1975	/// Create token.1976	///1977	/// * `sender` - The user who mint the token and pays for the transaction.1978	/// * `to` - The user who will own the token.1979	/// * `data` - Token data.1980	/// * `nesting_budget` - A budget that can be spent on nesting tokens.1981	fn create_item(1982		&self,1983		sender: T::CrossAccountId,1984		to: T::CrossAccountId,1985		data: CreateItemData,1986		nesting_budget: &dyn Budget,1987	) -> DispatchResultWithPostInfo;19881989	/// Create multiple tokens.1990	///1991	/// * `sender` - The user who mint the token and pays for the transaction.1992	/// * `to` - The user who will own the token.1993	/// * `data` - Token data.1994	/// * `nesting_budget` - A budget that can be spent on nesting tokens.1995	fn create_multiple_items(1996		&self,1997		sender: T::CrossAccountId,1998		to: T::CrossAccountId,1999		data: Vec<CreateItemData>,2000		nesting_budget: &dyn Budget,2001	) -> DispatchResultWithPostInfo;20022003	/// Create multiple tokens.2004	///2005	/// * `sender` - The user who mint the token and pays for the transaction.2006	/// * `to` - The user who will own the token.2007	/// * `data` - Token data.2008	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2009	fn create_multiple_items_ex(2010		&self,2011		sender: T::CrossAccountId,2012		data: CreateItemExData<T::CrossAccountId>,2013		nesting_budget: &dyn Budget,2014	) -> DispatchResultWithPostInfo;20152016	/// Burn token.2017	///2018	/// * `sender` - The user who owns the token.2019	/// * `token` - Token id that will burned.2020	/// * `amount` - The number of parts of the token that will be burned.2021	fn burn_item(2022		&self,2023		sender: T::CrossAccountId,2024		token: TokenId,2025		amount: u128,2026	) -> DispatchResultWithPostInfo;20272028	/// Set collection properties.2029	///2030	/// * `sender` - Must be either the owner of the collection or its admin.2031	/// * `properties` - Properties to be set.2032	fn set_collection_properties(2033		&self,2034		sender: T::CrossAccountId,2035		properties: Vec<Property>,2036	) -> DispatchResultWithPostInfo;20372038	/// Delete collection properties.2039	///2040	/// * `sender` - Must be either the owner of the collection or its admin.2041	/// * `properties` - The properties to be removed.2042	fn delete_collection_properties(2043		&self,2044		sender: &T::CrossAccountId,2045		property_keys: Vec<PropertyKey>,2046	) -> DispatchResultWithPostInfo;20472048	/// Set token properties.2049	///2050	/// The appropriate [`PropertyPermission`] for the token property2051	/// must be set with [`Self::set_token_property_permissions`].2052	///2053	/// * `sender` - Must be either the owner of the token or its admin.2054	/// * `token_id` - The token for which the properties are being set.2055	/// * `properties` - Properties to be set.2056	/// * `budget` - Budget for setting properties.2057	fn set_token_properties(2058		&self,2059		sender: T::CrossAccountId,2060		token_id: TokenId,2061		properties: Vec<Property>,2062		budget: &dyn Budget,2063	) -> DispatchResultWithPostInfo;20642065	/// Remove token properties.2066	///2067	/// The appropriate [`PropertyPermission`] for the token property2068	/// must be set with [`Self::set_token_property_permissions`].2069	///2070	/// * `sender` - Must be either the owner of the token or its admin.2071	/// * `token_id` - The token for which the properties are being remove.2072	/// * `property_keys` - Keys to remove corresponding properties.2073	/// * `budget` - Budget for removing properties.2074	fn delete_token_properties(2075		&self,2076		sender: T::CrossAccountId,2077		token_id: TokenId,2078		property_keys: Vec<PropertyKey>,2079		budget: &dyn Budget,2080	) -> DispatchResultWithPostInfo;20812082	/// Get token properties raw map.2083	///2084	/// * `token_id` - The token which properties are needed.2085	fn get_token_properties_raw(&self, token_id: TokenId) -> Option<TokenProperties>;20862087	/// Set token properties raw map.2088	///2089	/// * `token_id` - The token for which the properties are being set.2090	/// * `map` - The raw map containing the token's properties.2091	fn set_token_properties_raw(&self, token_id: TokenId, map: TokenProperties);20922093	/// Set token property permissions.2094	///2095	/// * `sender` - Must be either the owner of the token or its admin.2096	/// * `token_id` - The token for which the properties are being set.2097	/// * `property_permissions` - Property permissions to be set.2098	/// * `budget` - Budget for setting properties.2099	fn set_token_property_permissions(2100		&self,2101		sender: &T::CrossAccountId,2102		property_permissions: Vec<PropertyKeyPermission>,2103	) -> DispatchResultWithPostInfo;21042105	/// Transfer amount of token pieces.2106	///2107	/// * `sender` - Donor user.2108	/// * `to` - Recepient user.2109	/// * `token` - The token of which parts are being sent.2110	/// * `amount` - The number of parts of the token that will be transferred.2111	/// * `budget` - The maximum budget that can be spent on the transfer.2112	fn transfer(2113		&self,2114		sender: T::CrossAccountId,2115		to: T::CrossAccountId,2116		token: TokenId,2117		amount: u128,2118		budget: &dyn Budget,2119	) -> DispatchResultWithPostInfo;21202121	/// Grant access to another account to transfer parts of the token owned by the calling user via [Self::transfer_from].2122	///2123	/// * `sender` - The user who grants access to the token.2124	/// * `spender` - The user to whom the rights are granted.2125	/// * `token` - The token to which access is granted.2126	/// * `amount` - The amount of pieces that another user can dispose of.2127	fn approve(2128		&self,2129		sender: T::CrossAccountId,2130		spender: T::CrossAccountId,2131		token: TokenId,2132		amount: u128,2133	) -> DispatchResultWithPostInfo;21342135	/// Grant access to another account to transfer parts of the token owned by the calling user's eth mirror via [Self::transfer_from].2136	///2137	/// * `sender` - The user who grants access to the token.2138	/// * `from` - Spender's eth mirror.2139	/// * `to` - The user to whom the rights are granted.2140	/// * `token` - The token to which access is granted.2141	/// * `amount` - The amount of pieces that another user can dispose of.2142	fn approve_from(2143		&self,2144		sender: T::CrossAccountId,2145		from: T::CrossAccountId,2146		to: T::CrossAccountId,2147		token: TokenId,2148		amount: u128,2149	) -> DispatchResultWithPostInfo;21502151	/// Send parts of a token owned by another user.2152	///2153	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2154	///2155	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2156	/// * `from` - The user who owns the token.2157	/// * `to` - Recepient user.2158	/// * `token` - The token of which parts are being sent.2159	/// * `amount` - The number of parts of the token that will be transferred.2160	/// * `budget` - The maximum budget that can be spent on the transfer.2161	fn transfer_from(2162		&self,2163		sender: T::CrossAccountId,2164		from: T::CrossAccountId,2165		to: T::CrossAccountId,2166		token: TokenId,2167		amount: u128,2168		budget: &dyn Budget,2169	) -> DispatchResultWithPostInfo;21702171	/// Burn parts of a token owned by another user.2172	///2173	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2174	///2175	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2176	/// * `from` - The user who owns the token.2177	/// * `token` - The token of which parts are being sent.2178	/// * `amount` - The number of parts of the token that will be transferred.2179	/// * `budget` - The maximum budget that can be spent on the burn.2180	fn burn_from(2181		&self,2182		sender: T::CrossAccountId,2183		from: T::CrossAccountId,2184		token: TokenId,2185		amount: u128,2186		budget: &dyn Budget,2187	) -> DispatchResultWithPostInfo;21882189	/// Check permission to nest token.2190	///2191	/// * `sender` - The user who initiated the check.2192	/// * `from` - The token that is checked for embedding.2193	/// * `under` - Token under which to check.2194	/// * `budget` - The maximum budget that can be spent on the check.2195	fn check_nesting(2196		&self,2197		sender: &T::CrossAccountId,2198		from: (CollectionId, TokenId),2199		under: TokenId,2200		budget: &dyn Budget,2201	) -> DispatchResult;22022203	/// Nest one token into another.2204	///2205	/// * `under` - Token holder.2206	/// * `to_nest` - Nested token.2207	fn nest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22082209	/// Unnest token.2210	///2211	/// * `under` - Token holder.2212	/// * `to_nest` - Token to unnest.2213	fn unnest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22142215	/// Get all user tokens.2216	///2217	/// * `account` - Account for which you need to get tokens.2218	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;22192220	/// Get all the tokens in the collection.2221	fn collection_tokens(&self) -> Vec<TokenId>;22222223	/// Check if the token exists.2224	///2225	/// * `token` - Id token to check.2226	fn token_exists(&self, token: TokenId) -> bool;22272228	/// Get the id of the last minted token.2229	fn last_token_id(&self) -> TokenId;22302231	/// Get the owner of the token.2232	///2233	/// * `token` - The token for which you need to find out the owner.2234	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError>;22352236	/// Checks if the `maybe_owner` is the indirect owner of the `token`.2237	///2238	/// * `token` - Id token to check.2239	/// * `maybe_owner` - The account to check.2240	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2241	fn check_token_indirect_owner(2242		&self,2243		token: TokenId,2244		maybe_owner: &T::CrossAccountId,2245		nesting_budget: &dyn Budget,2246	) -> Result<bool, DispatchError>;22472248	/// Returns 10 tokens owners in no particular order.2249	///2250	/// * `token` - The token for which you need to find out the owners.2251	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId>;22522253	/// Get the value of the token property by key.2254	///2255	/// * `token` - Token with the property to get.2256	/// * `key` - Property name.2257	fn token_property(&self, token_id: TokenId, key: &PropertyKey) -> Option<PropertyValue>;22582259	/// Get a set of token properties by key vector.2260	///2261	/// * `token` - Token with the property to get.2262	/// * `keys` - Vector of property keys. If this parameter is [None](sp_std::result::Result),2263	/// then all properties are returned.2264	fn token_properties(&self, token: TokenId, keys: Option<Vec<PropertyKey>>) -> Vec<Property>;22652266	/// Amount of unique collection tokens2267	fn total_supply(&self) -> u32;22682269	/// Amount of different tokens account has.2270	///2271	/// * `account` - The account for which need to get the balance.2272	fn account_balance(&self, account: T::CrossAccountId) -> u32;22732274	/// Amount of specific token account have.2275	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;22762277	/// Amount of token pieces2278	fn total_pieces(&self, token: TokenId) -> Option<u128>;22792280	/// Get the number of parts of the token that a trusted user can manage.2281	///2282	/// * `sender` - Trusted user.2283	/// * `spender` - Owner of the token.2284	/// * `token` - The token for which to get the value.2285	fn allowance(2286		&self,2287		sender: T::CrossAccountId,2288		spender: T::CrossAccountId,2289		token: TokenId,2290	) -> u128;22912292	/// Get extension for RFT collection.2293	fn refungible_extensions(&self) -> Option<&dyn RefungibleExtensions<T>> {2294		None2295	}22962297	/// Get XCM extensions.2298	fn xcm_extensions(&self) -> Option<&dyn XcmExtensions<T>> {2299		None2300	}23012302	/// The `operator` is allowed to transfer all tokens of the `owner` on their behalf.2303	/// * `owner` - Token owner2304	/// * `operator` - Operator2305	/// * `approve` - Should operator status be granted or revoked?2306	fn set_allowance_for_all(2307		&self,2308		owner: T::CrossAccountId,2309		operator: T::CrossAccountId,2310		approve: bool,2311	) -> DispatchResultWithPostInfo;23122313	/// Tells whether the given `owner` approves the `operator`.2314	fn allowance_for_all(&self, owner: T::CrossAccountId, operator: T::CrossAccountId) -> bool;23152316	/// Repairs a possibly broken item.2317	fn repair_item(&self, token: TokenId) -> DispatchResultWithPostInfo;2318}23192320/// Extension for RFT collection.2321pub trait RefungibleExtensions<T>2322where2323	T: Config,2324{2325	/// Change the number of parts of the token.2326	///2327	/// When the value changes down, this function is equivalent to burning parts of the token.2328	///2329	/// * `sender` - The user calling the repartition operation. Must be the owner of the token.2330	/// * `token` - The token for which you want to change the number of parts.2331	/// * `amount` - The new value of the parts of the token.2332	fn repartition(2333		&self,2334		sender: &T::CrossAccountId,2335		token: TokenId,2336		amount: u128,2337	) -> DispatchResultWithPostInfo;2338}23392340/// XCM extensions for fungible and NFT collections2341pub trait XcmExtensions<T>2342where2343	T: Config,2344{2345	/// Does the token have children?2346	fn token_has_children(&self, _token: TokenId) -> bool {2347		false2348	}23492350	/// Create a collection's item using a transaction.2351	///2352	/// This function performs additional XCM-related checks before the actual creation.2353	#[transactional]2354	fn create_item(2355		&self,2356		depositor: &T::CrossAccountId,2357		to: T::CrossAccountId,2358		data: CreateItemData,2359		nesting_budget: &dyn Budget,2360	) -> Result<TokenId, DispatchError> {2361		if T::CrossTokenAddressMapping::is_token_address(&to) {2362			return unsupported!(T);2363		}23642365		self.create_item_internal(depositor, to, data, nesting_budget)2366	}23672368	/// Create a collection's item.2369	fn create_item_internal(2370		&self,2371		depositor: &T::CrossAccountId,2372		to: T::CrossAccountId,2373		data: CreateItemData,2374		nesting_budget: &dyn Budget,2375	) -> Result<TokenId, DispatchError>;23762377	/// Transfer an item from the `from` account to the `to` account using a transaction.2378	///2379	/// This function performs additional XCM-related checks before the actual transfer.2380	#[transactional]2381	fn transfer_item(2382		&self,2383		depositor: &T::CrossAccountId,2384		from: &T::CrossAccountId,2385		to: &T::CrossAccountId,2386		token: TokenId,2387		amount: u128,2388		nesting_budget: &dyn Budget,2389	) -> DispatchResult {2390		if T::CrossTokenAddressMapping::is_token_address(&to) {2391			return unsupported!(T);2392		}23932394		self.transfer_item_internal(depositor, from, to, token, amount, nesting_budget)2395	}23962397	/// Transfer an item from the `from` account to the `to` account.2398	fn transfer_item_internal(2399		&self,2400		depositor: &T::CrossAccountId,2401		from: &T::CrossAccountId,2402		to: &T::CrossAccountId,2403		token: TokenId,2404		amount: u128,2405		nesting_budget: &dyn Budget,2406	) -> DispatchResult;24072408	/// Burn a collection's item using a transaction.2409	#[transactional]2410	fn burn_item(&self, from: T::CrossAccountId, token: TokenId, amount: u128) -> DispatchResult {2411		self.burn_item_internal(from, token, amount)2412	}24132414	/// Burn a collection's item.2415	fn burn_item_internal(2416		&self,2417		from: T::CrossAccountId,2418		token: TokenId,2419		amount: u128,2420	) -> DispatchResult;2421}24222423/// Merge [`DispatchResult`] with [`Weight`] into [`DispatchResultWithPostInfo`].2424///2425/// Used for [`CommonCollectionOperations`] implementations and flexible enough to do so.2426pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {2427	let post_info = PostDispatchInfo {2428		actual_weight: Some(weight),2429		pays_fee: Pays::Yes,2430	};2431	match res {2432		Ok(()) => Ok(post_info),2433		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),2434	}2435}24362437impl<T: Config> From<PropertiesError> for Error<T> {2438	fn from(error: PropertiesError) -> Self {2439		match error {2440			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,2441			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,2442			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,2443			PropertiesError::PropertyKeyIsTooLong => Self::PropertyKeyIsTooLong,2444			PropertiesError::EmptyPropertyKey => Self::EmptyPropertyKey,2445		}2446	}2447}24482449/// The type-safe interface for writing properties (setting or deleting) to tokens.2450/// It has two distinct implementations for newly created tokens and existing ones.2451///2452/// This type utilizes the lazy evaluation to avoid repeating the computation2453/// of several performance-heavy or PoV-heavy tasks,2454/// such as checking the indirect ownership or reading the token property permissions.2455pub struct PropertyWriter<'a, WriterVariant, T, Handle> {2456	collection: &'a Handle,2457	collection_lazy_info: PropertyWriterLazyCollectionInfo<'a>,2458	_phantom: PhantomData<(T, WriterVariant)>,2459}24602461impl<'a, T, Handle, WriterVariant> PropertyWriter<'a, WriterVariant, T, Handle>2462where2463	T: Config,2464	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2465{2466	fn internal_write_token_properties(2467		&mut self,2468		token_id: TokenId,2469		mut token_lazy_info: PropertyWriterLazyTokenInfo,2470		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,2471		log: evm_coder::ethereum::Log,2472	) -> DispatchResult {2473		for (key, value) in properties_updates {2474			let permission = self2475				.collection_lazy_info2476				.property_permissions2477				.value()2478				.get(&key)2479				.cloned()2480				.unwrap_or_else(PropertyPermission::none);24812482			match permission {2483				PropertyPermission { mutable: false, .. }2484					if token_lazy_info2485						.stored_properties2486						.value()2487						.get(&key)2488						.is_some() =>2489				{2490					return Err(<Error<T>>::NoPermission.into());2491				}24922493				PropertyPermission {2494					collection_admin,2495					token_owner,2496					..2497				} => check_token_permissions::<T>(2498					collection_admin,2499					token_owner,2500					&mut self.collection_lazy_info.is_collection_admin,2501					&mut token_lazy_info.is_token_owner,2502					&mut token_lazy_info.is_token_exist,2503				)?,2504			}25052506			match value {2507				Some(value) => {2508					token_lazy_info2509						.stored_properties2510						.value_mut()2511						.try_set(key.clone(), value)2512						.map_err(<Error<T>>::from)?;25132514					<Pallet<T>>::deposit_event(Event::TokenPropertySet(2515						self.collection.id,2516						token_id,2517						key,2518					));2519				}2520				None => {2521					token_lazy_info2522						.stored_properties2523						.value_mut()2524						.remove(&key)2525						.map_err(<Error<T>>::from)?;25262527					<Pallet<T>>::deposit_event(Event::TokenPropertyDeleted(2528						self.collection.id,2529						token_id,2530						key,2531					));2532				}2533			}2534		}25352536		let properties_changed = token_lazy_info.stored_properties.has_value();2537		if properties_changed {2538			<PalletEvm<T>>::deposit_log(log);25392540			self.collection2541				.set_token_properties_raw(token_id, token_lazy_info.stored_properties.into_inner());2542		}25432544		Ok(())2545	}2546}25472548/// A helper structure for the [`PropertyWriter`] that holds2549/// the collection-related info. The info is loaded using lazy evaluation.2550/// This info is common for any token for which we write properties.2551pub struct PropertyWriterLazyCollectionInfo<'a> {2552	is_collection_admin: LazyValue<'a, bool>,2553	property_permissions: LazyValue<'a, PropertiesPermissionMap>,2554}25552556/// A helper structure for the [`PropertyWriter`] that holds2557/// the token-related info. The info is loaded using lazy evaluation.2558pub struct PropertyWriterLazyTokenInfo<'a> {2559	is_token_exist: LazyValue<'a, bool>,2560	is_token_owner: LazyValue<'a, Result<bool, DispatchError>>,2561	stored_properties: LazyValue<'a, TokenProperties>,2562}25632564impl<'a> PropertyWriterLazyTokenInfo<'a> {2565	/// Create a lazy token info.2566	pub fn new(2567		check_token_exist: impl FnOnce() -> bool + 'a,2568		check_token_owner: impl FnOnce() -> Result<bool, DispatchError> + 'a,2569		get_token_properties: impl FnOnce() -> TokenProperties + 'a,2570	) -> Self {2571		Self {2572			is_token_exist: LazyValue::new(check_token_exist),2573			is_token_owner: LazyValue::new(check_token_owner),2574			stored_properties: LazyValue::new(get_token_properties),2575		}2576	}2577}25782579/// A marker structure that enables the writer implementation2580/// to provide the interface to write properties to **newly created** tokens.2581pub struct NewTokenPropertyWriter<T>(PhantomData<T>);2582impl<T: Config> NewTokenPropertyWriter<T> {2583	/// Creates a [`PropertyWriter`] for **newly created** tokens.2584	pub fn new<'a, Handle>(2585		collection: &'a Handle,2586		sender: &'a T::CrossAccountId,2587	) -> PropertyWriter<'a, Self, T, Handle>2588	where2589		T: Config,2590		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2591	{2592		PropertyWriter {2593			collection,2594			collection_lazy_info: PropertyWriterLazyCollectionInfo {2595				is_collection_admin: LazyValue::new(|| collection.is_owner_or_admin(sender)),2596				property_permissions: LazyValue::new(|| {2597					<Pallet<T>>::property_permissions(collection.id)2598				}),2599			},2600			_phantom: PhantomData,2601		}2602	}2603}26042605impl<'a, T, Handle> PropertyWriter<'a, NewTokenPropertyWriter<T>, T, Handle>2606where2607	T: Config,2608	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2609{2610	/// A function to write properties to a **newly created** token.2611	pub fn write_token_properties(2612		&mut self,2613		mint_target_is_sender: bool,2614		token_id: TokenId,2615		properties_updates: impl Iterator<Item = Property>,2616		log: evm_coder::ethereum::Log,2617	) -> DispatchResult {2618		let check_token_exist = || {2619			debug_assert!(self.collection.token_exists(token_id));2620			true2621		};26222623		let check_token_owner = || Ok(mint_target_is_sender);26242625		let get_token_properties = || {2626			debug_assert!(self.collection.get_token_properties_raw(token_id).is_none());2627			TokenProperties::new()2628		};26292630		self.internal_write_token_properties(2631			token_id,2632			PropertyWriterLazyTokenInfo::new(2633				check_token_exist,2634				check_token_owner,2635				get_token_properties,2636			),2637			properties_updates.map(|p| (p.key, Some(p.value))),2638			log,2639		)2640	}2641}26422643/// A marker structure that enables the writer implementation2644/// to provide the interface to write properties to **already existing** tokens.2645pub struct ExistingTokenPropertyWriter<T>(PhantomData<T>);2646impl<T: Config> ExistingTokenPropertyWriter<T> {2647	/// Creates a [`PropertyWriter`] for **already existing** tokens.2648	pub fn new<'a, Handle>(2649		collection: &'a Handle,2650		sender: &'a T::CrossAccountId,2651	) -> PropertyWriter<'a, Self, T, Handle>2652	where2653		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2654	{2655		PropertyWriter {2656			collection,2657			collection_lazy_info: PropertyWriterLazyCollectionInfo {2658				is_collection_admin: LazyValue::new(|| collection.is_owner_or_admin(sender)),2659				property_permissions: LazyValue::new(|| {2660					<Pallet<T>>::property_permissions(collection.id)2661				}),2662			},2663			_phantom: PhantomData,2664		}2665	}2666}26672668impl<'a, T, Handle> PropertyWriter<'a, ExistingTokenPropertyWriter<T>, T, Handle>2669where2670	T: Config,2671	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2672{2673	/// A function to write properties to an **already existing** token.2674	pub fn write_token_properties(2675		&mut self,2676		sender: &T::CrossAccountId,2677		token_id: TokenId,2678		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,2679		nesting_budget: &dyn Budget,2680		log: evm_coder::ethereum::Log,2681	) -> DispatchResult {2682		let check_token_exist = || self.collection.token_exists(token_id);2683		let check_token_owner = || {2684			self.collection2685				.check_token_indirect_owner(token_id, sender, nesting_budget)2686		};2687		let get_token_properties = || {2688			self.collection2689				.get_token_properties_raw(token_id)2690				.unwrap_or_default()2691		};26922693		self.internal_write_token_properties(2694			token_id,2695			PropertyWriterLazyTokenInfo::new(2696				check_token_exist,2697				check_token_owner,2698				get_token_properties,2699			),2700			properties_updates,2701			log,2702		)2703	}2704}27052706/// A marker structure that enables the writer implementation2707/// to benchmark the token properties writing.2708#[cfg(feature = "runtime-benchmarks")]2709pub struct BenchmarkPropertyWriter<T>(PhantomData<T>);27102711#[cfg(feature = "runtime-benchmarks")]2712impl<T: Config> BenchmarkPropertyWriter<T> {2713	/// Creates a [`PropertyWriter`] for benchmarking tokens properties writing.2714	pub fn new<'a, Handle>(2715		collection: &'a Handle,2716		collection_lazy_info: PropertyWriterLazyCollectionInfo<'a>,2717	) -> PropertyWriter<'a, Self, T, Handle>2718	where2719		Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2720	{2721		PropertyWriter {2722			collection,2723			collection_lazy_info,2724			_phantom: PhantomData,2725		}2726	}27272728	/// Load the [`PropertyWriterLazyCollectionInfo`] from the storage.2729	pub fn load_collection_info<Handle>(2730		collection_handle: &Handle,2731		sender: &T::CrossAccountId,2732	) -> PropertyWriterLazyCollectionInfo<'static>2733	where2734		Handle: Deref<Target = CollectionHandle<T>>,2735	{2736		let is_collection_admin = collection_handle.is_owner_or_admin(sender);2737		let property_permissions = <Pallet<T>>::property_permissions(collection_handle.id);27382739		PropertyWriterLazyCollectionInfo {2740			is_collection_admin: LazyValue::new(move || is_collection_admin),2741			property_permissions: LazyValue::new(move || property_permissions),2742		}2743	}27442745	/// Load the [`PropertyWriterLazyTokenInfo`] with token properties from the storage.2746	pub fn load_token_properties<Handle>(2747		collection: &Handle,2748		token_id: TokenId,2749	) -> PropertyWriterLazyTokenInfo2750	where2751		Handle: CommonCollectionOperations<T>,2752	{2753		let stored_properties = collection2754			.get_token_properties_raw(token_id)2755			.unwrap_or_default();27562757		PropertyWriterLazyTokenInfo {2758			is_token_exist: LazyValue::new(|| true),2759			is_token_owner: LazyValue::new(|| Ok(true)),2760			stored_properties: LazyValue::new(move || stored_properties),2761		}2762	}2763}27642765#[cfg(feature = "runtime-benchmarks")]2766impl<'a, T, Handle> PropertyWriter<'a, BenchmarkPropertyWriter<T>, T, Handle>2767where2768	T: Config,2769	Handle: CommonCollectionOperations<T> + Deref<Target = CollectionHandle<T>>,2770{2771	/// A function to benchmark the writing of token properties.2772	pub fn write_token_properties(2773		&mut self,2774		token_id: TokenId,2775		properties_updates: impl Iterator<Item = Property>,2776		log: evm_coder::ethereum::Log,2777	) -> DispatchResult {2778		let check_token_exist = || true;2779		let check_token_owner = || Ok(true);2780		let get_token_properties = TokenProperties::new;27812782		self.internal_write_token_properties(2783			token_id,2784			PropertyWriterLazyTokenInfo::new(2785				check_token_exist,2786				check_token_owner,2787				get_token_properties,2788			),2789			properties_updates.map(|p| (p.key, Some(p.value))),2790			log,2791		)2792	}2793}27942795/// Computes the weight of writing properties to tokens.2796/// * `properties_nums` - The properties num of each created token.2797/// * `per_token_weight_weight` - The function to obtain the weight2798/// of writing properties from a token's properties num.2799pub fn write_token_properties_total_weight<T: Config, I: Fn(u32) -> Weight>(2800	properties_nums: impl Iterator<Item = u32>,2801	per_token_weight: I,2802) -> Weight {2803	let mut weight = properties_nums2804		.filter_map(|properties_num| {2805			if properties_num > 0 {2806				Some(per_token_weight(properties_num))2807			} else {2808				None2809			}2810		})2811		.fold(Weight::zero(), |a, b| a.saturating_add(b));28122813	if !weight.is_zero() {2814		// If we are here, it means the token properties were written at least once.2815		// Because of that, some common collection data was also loaded; we must add this weight.2816		// However, this common data was loaded only once, which is guaranteed by the `PropertyWriter`.28172818		weight = weight.saturating_add(<SelfWeightOf<T>>::property_writer_load_collection_info());2819	}28202821	weight2822}28232824#[cfg(any(feature = "tests", test))]2825#[allow(missing_docs)]2826pub mod tests {2827	use crate::{Config, DispatchError, DispatchResult, LazyValue};28282829	const fn to_bool(u: u8) -> bool {2830		u != 02831	}28322833	#[derive(Debug)]2834	pub struct TestCase {2835		pub collection_admin: bool,2836		pub is_collection_admin: bool,2837		pub token_owner: bool,2838		pub is_token_owner: bool,2839		pub no_permission: bool,2840	}28412842	impl TestCase {2843		const fn new(2844			collection_admin: u8,2845			is_collection_admin: u8,2846			token_owner: u8,2847			is_token_owner: u8,2848			no_permission: u8,2849		) -> Self {2850			Self {2851				collection_admin: to_bool(collection_admin),2852				is_collection_admin: to_bool(is_collection_admin),2853				token_owner: to_bool(token_owner),2854				is_token_owner: to_bool(is_token_owner),2855				no_permission: to_bool(no_permission),2856			}2857		}2858	}28592860	#[rustfmt::skip]2861	pub const TABLE: [TestCase; 16] = [2862		//                    ┌╴collection_admin2863		//                    │  ┌╴is_collection_admin2864		//                    │  │   ┌╴token_owner2865		//                    │  │   │  ┌╴is_token_ownership2866		//                    │  │   │  │   ┌╴no_permission2867		/*  0*/ TestCase::new(0, 0,  0, 0,  1),2868		/*  1*/ TestCase::new(0, 0,  0, 1,  1),2869		/*  2*/ TestCase::new(0, 0,  1, 0,  1),2870		/*  3*/ TestCase::new(0, 0,  1, 1,  0),2871		/*  4*/ TestCase::new(0, 1,  0, 0,  1),2872		/*  5*/ TestCase::new(0, 1,  0, 1,  1),2873		/*  6*/ TestCase::new(0, 1,  1, 0,  1),2874		/*  7*/ TestCase::new(0, 1,  1, 1,  0),2875		/*  8*/ TestCase::new(1, 0,  0, 0,  1),2876		/*  9*/ TestCase::new(1, 0,  0, 1,  1),2877		/* 10*/ TestCase::new(1, 0,  1, 0,  1),2878		/* 11*/ TestCase::new(1, 0,  1, 1,  0),2879		/* 12*/ TestCase::new(1, 1,  0, 0,  0),2880		/* 13*/ TestCase::new(1, 1,  0, 1,  0),2881		/* 14*/ TestCase::new(1, 1,  1, 0,  0),2882		/* 15*/ TestCase::new(1, 1,  1, 1,  0),2883	];28842885	pub fn check_token_permissions<T: Config>(2886		collection_admin_permitted: bool,2887		token_owner_permitted: bool,2888		is_collection_admin: &mut LazyValue<bool>,2889		check_token_ownership: &mut LazyValue<Result<bool, DispatchError>>,2890		check_token_existence: &mut LazyValue<bool>,2891	) -> DispatchResult {2892		crate::check_token_permissions::<T>(2893			collection_admin_permitted,2894			token_owner_permitted,2895			is_collection_admin,2896			check_token_ownership,2897			check_token_existence,2898		)2899	}2900}