git.delta.rocks / unique-network / refs/commits / 369a51ded768

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 core::{57	ops::{Deref, DerefMut},58	slice::from_ref,59};60use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};61use sp_std::vec::Vec;62use pallet_evm::{account::CrossAccountId, Pallet as PalletEvm};63use evm_coder::ToLog;64use frame_support::{65	dispatch::{DispatchErrorWithPostInfo, DispatchResultWithPostInfo, Weight, PostDispatchInfo},66	ensure,67	traits::{68		Get,69		fungible::{Balanced, Debt, Inspect},70		tokens::{Imbalance, Precision, Preservation},71	},72	dispatch::Pays,73	transactional, fail,74};75use up_data_structs::{76	AccessMode, COLLECTION_NUMBER_LIMIT, Collection, RpcCollection, RpcCollectionFlags,77	CollectionId, CreateItemData, MAX_TOKEN_PREFIX_LENGTH, COLLECTION_ADMINS_LIMIT, TokenId,78	TokenChild, CollectionStats, MAX_TOKEN_OWNERSHIP, CollectionMode, NFT_SPONSOR_TRANSFER_TIMEOUT,79	FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, MAX_SPONSOR_TIMEOUT,80	CUSTOM_DATA_LIMIT, CollectionLimits, CreateCollectionData, SponsorshipState, CreateItemExData,81	SponsoringRateLimit, budget::Budget, PhantomType, Property,82	CollectionProperties as CollectionPropertiesT, TokenProperties, PropertiesPermissionMap,83	PropertyKey, PropertyValue, PropertyPermission, PropertiesError, TokenOwnerError,84	PropertyKeyPermission, TokenData, TrySetProperty, PropertyScope, CollectionPermissions,85};86use up_pov_estimate_rpc::PovInfo;8788pub use pallet::*;89use sp_core::H160;90use sp_runtime::{ArithmeticError, DispatchError, DispatchResult, traits::Zero};9192#[cfg(feature = "runtime-benchmarks")]93pub mod benchmarking;94pub mod dispatch;95pub mod erc;96pub mod eth;97pub mod helpers;98#[allow(missing_docs)]99pub mod weights;100/// Weight info.101pub type SelfWeightOf<T> = <T as Config>::WeightInfo;102103/// Collection handle contains information about collection data and id.104/// Also provides functionality to count consumed gas.105///106/// CollectionHandle is used as a generic wrapper for collections of all types (except native fungible).107/// It allows to perform common operations and queries on any collection type,108/// both completely general for all, as well as their respective implementations of [`CommonCollectionOperations`].109#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]110pub struct CollectionHandle<T: Config> {111	/// Collection id112	pub id: CollectionId,113	collection: Collection<T::AccountId>,114	/// Substrate recorder for counting consumed gas115	pub recorder: SubstrateRecorder<T>,116}117118impl<T: Config> WithRecorder<T> for CollectionHandle<T> {119	fn recorder(&self) -> &SubstrateRecorder<T> {120		&self.recorder121	}122	fn into_recorder(self) -> SubstrateRecorder<T> {123		self.recorder124	}125}126127impl<T: Config> CollectionHandle<T> {128	/// Same as [CollectionHandle::new] but with an explicit gas limit.129	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {130		Self::new_with_recorder(id, SubstrateRecorder::new(gas_limit))131	}132133	/// Same as [CollectionHandle::new] but with an existed [`SubstrateRecorder`].134	pub fn new_with_recorder(id: CollectionId, recorder: SubstrateRecorder<T>) -> Option<Self> {135		<CollectionById<T>>::get(id).map(|collection| Self {136			id,137			collection,138			recorder,139		})140	}141142	/// Retrives collection data from storage and creates collection handle with default parameters.143	/// If collection not found return `None`144	pub fn new(id: CollectionId) -> Option<Self> {145		Self::new_with_gas_limit(id, u64::MAX)146	}147148	/// Same as [`CollectionHandle::new`] but if collection not found [CollectionNotFound](Error::CollectionNotFound) returned.149	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {150		Ok(Self::new(id).ok_or(<Error<T>>::CollectionNotFound)?)151	}152153	/// Consume gas for reading.154	pub fn consume_store_reads(155		&self,156		reads: u64,157	) -> pallet_evm_coder_substrate::execution::Result<()> {158		self.recorder().consume_store_reads(reads)159	}160161	/// Consume gas for writing.162	pub fn consume_store_writes(163		&self,164		writes: u64,165	) -> pallet_evm_coder_substrate::execution::Result<()> {166		self.recorder().consume_store_writes(writes)167	}168169	/// Consume gas for reading and writing.170	pub fn consume_store_reads_and_writes(171		&self,172		reads: u64,173		writes: u64,174	) -> pallet_evm_coder_substrate::execution::Result<()> {175		self.recorder()176			.consume_store_reads_and_writes(reads, writes)177	}178179	/// Save collection to storage.180	pub fn save(&self) -> DispatchResult {181		<CollectionById<T>>::insert(self.id, &self.collection);182		Ok(())183	}184185	/// Set collection sponsor.186	///187	/// Unique collections allows sponsoring for certain actions.188	/// This method allows you to set the sponsor of the collection.189	/// In order for sponsorship to become active, it must be confirmed through [`Self::confirm_sponsorship`].190	pub fn set_sponsor(191		&mut self,192		sender: &T::CrossAccountId,193		sponsor: T::AccountId,194	) -> DispatchResult {195		self.check_is_internal()?;196		self.check_is_owner_or_admin(sender)?;197198		self.collection.sponsorship = SponsorshipState::Unconfirmed(sponsor.clone());199200		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(self.id, sponsor));201		<PalletEvm<T>>::deposit_log(202			erc::CollectionHelpersEvents::CollectionChanged {203				collection_id: eth::collection_id_to_address(self.id),204			}205			.to_log(T::ContractAddress::get()),206		);207208		self.save()209	}210211	/// Force set `sponsor`.212	///213	/// Differs from [`set_sponsor`][`Self::set_sponsor`] in that confirmation214	/// from the `sponsor` is not required.215	///216	/// # Arguments217	///218	/// * `sponsor`: ID of the account of the sponsor-to-be.219	pub fn force_set_sponsor(&mut self, sponsor: T::AccountId) -> DispatchResult {220		self.check_is_internal()?;221222		self.collection.sponsorship = SponsorshipState::Confirmed(sponsor.clone());223224		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(self.id, sponsor.clone()));225		<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(self.id, sponsor));226		<PalletEvm<T>>::deposit_log(227			erc::CollectionHelpersEvents::CollectionChanged {228				collection_id: eth::collection_id_to_address(self.id),229			}230			.to_log(T::ContractAddress::get()),231		);232233		self.save()234	}235236	/// Confirm sponsorship237	///238	/// In order for the sponsorship to become active, the user set as the sponsor must confirm their participation.239	/// Before confirming sponsorship, the user must be specified as the sponsor of the collection via [`Self::set_sponsor`].240	pub fn confirm_sponsorship(&mut self, sender: &T::AccountId) -> DispatchResult {241		self.check_is_internal()?;242		ensure!(243			self.collection.sponsorship.pending_sponsor() == Some(sender),244			Error::<T>::ConfirmSponsorshipFail245		);246247		self.collection.sponsorship = SponsorshipState::Confirmed(sender.clone());248249		<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(self.id, sender.clone()));250		<PalletEvm<T>>::deposit_log(251			erc::CollectionHelpersEvents::CollectionChanged {252				collection_id: eth::collection_id_to_address(self.id),253			}254			.to_log(T::ContractAddress::get()),255		);256257		self.save()258	}259260	/// Remove collection sponsor.261	pub fn remove_sponsor(&mut self, sender: &T::CrossAccountId) -> DispatchResult {262		self.check_is_internal()?;263		self.check_is_owner_or_admin(sender)?;264265		self.collection.sponsorship = SponsorshipState::Disabled;266267		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(self.id));268		<PalletEvm<T>>::deposit_log(269			erc::CollectionHelpersEvents::CollectionChanged {270				collection_id: eth::collection_id_to_address(self.id),271			}272			.to_log(T::ContractAddress::get()),273		);274		self.save()275	}276277	/// Force remove `sponsor`.278	///279	/// Differs from `remove_sponsor` in that280	/// it doesn't require consent from the `owner` of the collection.281	pub fn force_remove_sponsor(&mut self) -> DispatchResult {282		self.check_is_internal()?;283284		self.collection.sponsorship = SponsorshipState::Disabled;285286		<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(self.id));287		<PalletEvm<T>>::deposit_log(288			erc::CollectionHelpersEvents::CollectionChanged {289				collection_id: eth::collection_id_to_address(self.id),290			}291			.to_log(T::ContractAddress::get()),292		);293		self.save()294	}295296	/// Checks that the collection was created with, and must be operated upon through **Unique API**.297	/// Now check only the `external` flag and if it's **true**, then return [`Error::CollectionIsExternal`] error.298	pub fn check_is_internal(&self) -> DispatchResult {299		if self.flags.external {300			return Err(<Error<T>>::CollectionIsExternal)?;301		}302303		Ok(())304	}305306	/// Checks that the collection was created with, and must be operated upon through an **assimilated API**.307	/// Now check only the `external` flag and if it's **false**, then return [`Error::CollectionIsInternal`] error.308	pub fn check_is_external(&self) -> DispatchResult {309		if !self.flags.external {310			return Err(<Error<T>>::CollectionIsInternal)?;311		}312313		Ok(())314	}315}316317impl<T: Config> Deref for CollectionHandle<T> {318	type Target = Collection<T::AccountId>;319320	fn deref(&self) -> &Self::Target {321		&self.collection322	}323}324325impl<T: Config> DerefMut for CollectionHandle<T> {326	fn deref_mut(&mut self) -> &mut Self::Target {327		&mut self.collection328	}329}330331impl<T: Config> CollectionHandle<T> {332	/// Checks if the `user` is the owner of the collection.333	pub fn check_is_owner(&self, user: &T::CrossAccountId) -> DispatchResult {334		ensure!(*user.as_sub() == self.owner, <Error<T>>::NoPermission);335		Ok(())336	}337338	/// Returns **true** if the `user` is the owner or administrator of the collection.339	pub fn is_owner_or_admin(&self, user: &T::CrossAccountId) -> bool {340		*user.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, user))341	}342343	/// Checks if the `user` is the owner or administrator of the collection.344	pub fn check_is_owner_or_admin(&self, user: &T::CrossAccountId) -> DispatchResult {345		ensure!(self.is_owner_or_admin(user), <Error<T>>::NoPermission);346		Ok(())347	}348349	/// Returns **true** if350	/// * the `user`is a collection owner or admin351	/// * the collection limits allow the owner/admins to transfer/burn any collection token352	pub fn ignores_token_restrictions(&self, user: &T::CrossAccountId) -> bool {353		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)354	}355356	/// Return **true** if `user` does not have enough token parts, and he can ignore such restrictions.357	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> bool {358		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)359	}360361	/// Checks if the user is in the allow list. If not [Error::AddressNotInAllowlist] returns.362	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {363		ensure!(364			<Allowlist<T>>::get((self.id, user)),365			<Error<T>>::AddressNotInAllowlist366		);367		Ok(())368	}369370	/// Changes collection owner to another account371	/// #### Store read/writes372	/// 1 writes373	pub fn change_owner(374		&mut self,375		caller: T::CrossAccountId,376		new_owner: T::CrossAccountId,377	) -> DispatchResult {378		self.check_is_internal()?;379		self.check_is_owner(&caller)?;380		self.collection.owner = new_owner.as_sub().clone();381382		<Pallet<T>>::deposit_event(Event::<T>::CollectionOwnerChanged(383			self.id,384			new_owner.as_sub().clone(),385		));386		<PalletEvm<T>>::deposit_log(387			erc::CollectionHelpersEvents::CollectionChanged {388				collection_id: eth::collection_id_to_address(self.id),389			}390			.to_log(T::ContractAddress::get()),391		);392393		self.save()394	}395}396397#[frame_support::pallet]398pub mod pallet {399400	use super::*;401	use dispatch::CollectionDispatch;402	use frame_support::{Blake2_128Concat, pallet_prelude::*, storage::Key, traits::StorageVersion};403	use up_data_structs::{TokenId, mapping::TokenAddressMapping};404	use scale_info::TypeInfo;405	use weights::WeightInfo;406407	#[pallet::config]408	pub trait Config:409		frame_system::Config + pallet_evm_coder_substrate::Config + pallet_evm::Config + TypeInfo410	{411		/// Weight information for functions of this pallet.412		type WeightInfo: WeightInfo;413414		/// Events compatible with [`frame_system::Config::Event`].415		type RuntimeEvent: IsType<<Self as frame_system::Config>::RuntimeEvent> + From<Event<Self>>;416417		/// Handler of accounts and payment.418		type Currency: Balanced<Self::AccountId> + Inspect<Self::AccountId>;419420		/// Set price to create a collection.421		#[pallet::constant]422		type CollectionCreationPrice: Get<423			<<Self as Config>::Currency as Inspect<Self::AccountId>>::Balance,424		>;425426		/// Dispatcher of operations on collections.427		type CollectionDispatch: CollectionDispatch<Self>;428429		/// Account which holds the chain's treasury.430		type TreasuryAccountId: Get<Self::AccountId>;431432		/// Address under which the CollectionHelper contract would be available.433		#[pallet::constant]434		type ContractAddress: Get<H160>;435436		/// Mapper for token addresses to Ethereum addresses.437		type EvmTokenAddressMapping: TokenAddressMapping<H160>;438439		/// Mapper for token addresses to [`CrossAccountId`].440		type CrossTokenAddressMapping: TokenAddressMapping<Self::CrossAccountId>;441	}442443	const STORAGE_VERSION: StorageVersion = StorageVersion::new(1);444	/// Collection id for native fungible collction.445	pub const NATIVE_FUNGIBLE_COLLECTION_ID: CollectionId = CollectionId(0);446447	#[pallet::pallet]448	#[pallet::storage_version(STORAGE_VERSION)]449	pub struct Pallet<T>(_);450451	#[pallet::extra_constants]452	impl<T: Config> Pallet<T> {453		/// Maximum admins per collection.454		pub fn collection_admins_limit() -> u32 {455			COLLECTION_ADMINS_LIMIT456		}457	}458459	#[pallet::genesis_config]460	pub struct GenesisConfig<T>(PhantomData<T>);461462	#[cfg(feature = "std")]463	impl<T: Config> Default for GenesisConfig<T> {464		fn default() -> Self {465			Self(Default::default())466		}467	}468469	#[pallet::genesis_build]470	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {471		fn build(&self) {472			StorageVersion::new(1).put::<Pallet<T>>();473		}474	}475476	impl<T: Config> Pallet<T> {477		/// Helper function that handles deposit events478		pub fn deposit_event(event: Event<T>) {479			let event = <T as Config>::RuntimeEvent::from(event);480			let event = event.into();481			<frame_system::Pallet<T>>::deposit_event(event)482		}483	}484485	#[pallet::event]486	pub enum Event<T: Config> {487		/// New collection was created488		CollectionCreated(489			/// Globally unique identifier of newly created collection.490			CollectionId,491			/// [`CollectionMode`] converted into _u8_.492			u8,493			/// Collection owner.494			T::AccountId,495		),496497		/// New collection was destroyed498		CollectionDestroyed(499			/// Globally unique identifier of collection.500			CollectionId,501		),502503		/// New item was created.504		ItemCreated(505			/// Id of the collection where item was created.506			CollectionId,507			/// Id of an item. Unique within the collection.508			TokenId,509			/// Owner of newly created item510			T::CrossAccountId,511			/// Always 1 for NFT512			u128,513		),514515		/// Collection item was burned.516		ItemDestroyed(517			/// Id of the collection where item was destroyed.518			CollectionId,519			/// Identifier of burned NFT.520			TokenId,521			/// Which user has destroyed its tokens.522			T::CrossAccountId,523			/// Amount of token pieces destroed. Always 1 for NFT.524			u128,525		),526527		/// Item was transferred528		Transfer(529			/// Id of collection to which item is belong.530			CollectionId,531			/// Id of an item.532			TokenId,533			/// Original owner of item.534			T::CrossAccountId,535			/// New owner of item.536			T::CrossAccountId,537			/// Amount of token pieces transfered. Always 1 for NFT.538			u128,539		),540541		/// Amount pieces of token owned by `sender` was approved for `spender`.542		Approved(543			/// Id of collection to which item is belong.544			CollectionId,545			/// Id of an item.546			TokenId,547			/// Original owner of item.548			T::CrossAccountId,549			/// Id for which the approval was granted.550			T::CrossAccountId,551			/// Amount of token pieces transfered. Always 1 for NFT.552			u128,553		),554555		/// A `sender` approves operations on all owned tokens for `spender`.556		ApprovedForAll(557			/// Id of collection to which item is belong.558			CollectionId,559			/// Owner of a wallet.560			T::CrossAccountId,561			/// Id for which operator status was granted or rewoked.562			T::CrossAccountId,563			/// Is operator status granted or revoked?564			bool,565		),566567		/// The colletion property has been added or edited.568		CollectionPropertySet(569			/// Id of collection to which property has been set.570			CollectionId,571			/// The property that was set.572			PropertyKey,573		),574575		/// The property has been deleted.576		CollectionPropertyDeleted(577			/// Id of collection to which property has been deleted.578			CollectionId,579			/// The property that was deleted.580			PropertyKey,581		),582583		/// The token property has been added or edited.584		TokenPropertySet(585			/// Identifier of the collection whose token has the property set.586			CollectionId,587			/// The token for which the property was set.588			TokenId,589			/// The property that was set.590			PropertyKey,591		),592593		/// The token property has been deleted.594		TokenPropertyDeleted(595			/// Identifier of the collection whose token has the property deleted.596			CollectionId,597			/// The token for which the property was deleted.598			TokenId,599			/// The property that was deleted.600			PropertyKey,601		),602603		/// The token property permission of a collection has been set.604		PropertyPermissionSet(605			/// ID of collection to which property permission has been set.606			CollectionId,607			/// The property permission that was set.608			PropertyKey,609		),610611		/// Address was added to the allow list.612		AllowListAddressAdded(613			/// ID of the affected collection.614			CollectionId,615			/// Address of the added account.616			T::CrossAccountId,617		),618619		/// Address was removed from the allow list.620		AllowListAddressRemoved(621			/// ID of the affected collection.622			CollectionId,623			/// Address of the removed account.624			T::CrossAccountId,625		),626627		/// Collection admin was added.628		CollectionAdminAdded(629			/// ID of the affected collection.630			CollectionId,631			/// Admin address.632			T::CrossAccountId,633		),634635		/// Collection admin was removed.636		CollectionAdminRemoved(637			/// ID of the affected collection.638			CollectionId,639			/// Removed admin address.640			T::CrossAccountId,641		),642643		/// Collection limits were set.644		CollectionLimitSet(645			/// ID of the affected collection.646			CollectionId,647		),648649		/// Collection owned was changed.650		CollectionOwnerChanged(651			/// ID of the affected collection.652			CollectionId,653			/// New owner address.654			T::AccountId,655		),656657		/// Collection permissions were set.658		CollectionPermissionSet(659			/// ID of the affected collection.660			CollectionId,661		),662663		/// Collection sponsor was set.664		CollectionSponsorSet(665			/// ID of the affected collection.666			CollectionId,667			/// New sponsor address.668			T::AccountId,669		),670671		/// New sponsor was confirm.672		SponsorshipConfirmed(673			/// ID of the affected collection.674			CollectionId,675			/// New sponsor address.676			T::AccountId,677		),678679		/// Collection sponsor was removed.680		CollectionSponsorRemoved(681			/// ID of the affected collection.682			CollectionId,683		),684	}685686	#[pallet::error]687	pub enum Error<T> {688		/// This collection does not exist.689		CollectionNotFound,690		/// Sender parameter and item owner must be equal.691		MustBeTokenOwner,692		/// No permission to perform action693		NoPermission,694		/// Destroying only empty collections is allowed695		CantDestroyNotEmptyCollection,696		/// Collection is not in mint mode.697		PublicMintingNotAllowed,698		/// Address is not in allow list.699		AddressNotInAllowlist,700701		/// Collection name can not be longer than 63 char.702		CollectionNameLimitExceeded,703		/// Collection description can not be longer than 255 char.704		CollectionDescriptionLimitExceeded,705		/// Token prefix can not be longer than 15 char.706		CollectionTokenPrefixLimitExceeded,707		/// Total collections bound exceeded.708		TotalCollectionsLimitExceeded,709		/// Exceeded max admin count710		CollectionAdminCountExceeded,711		/// Collection limit bounds per collection exceeded712		CollectionLimitBoundsExceeded,713		/// Tried to enable permissions which are only permitted to be disabled714		OwnerPermissionsCantBeReverted,715		/// Collection settings not allowing items transferring716		TransferNotAllowed,717		/// Account token limit exceeded per collection718		AccountTokenLimitExceeded,719		/// Collection token limit exceeded720		CollectionTokenLimitExceeded,721		/// Metadata flag frozen722		MetadataFlagFrozen,723724		/// Item does not exist725		TokenNotFound,726		/// Item is balance not enough727		TokenValueTooLow,728		/// Requested value is more than the approved729		ApprovedValueTooLow,730		/// Tried to approve more than owned731		CantApproveMoreThanOwned,732		/// Only spending from eth mirror could be approved733		AddressIsNotEthMirror,734735		/// Can't transfer tokens to ethereum zero address736		AddressIsZero,737738		/// The operation is not supported739		UnsupportedOperation,740741		/// Insufficient funds to perform an action742		NotSufficientFounds,743744		/// User does not satisfy the nesting rule745		UserIsNotAllowedToNest,746		/// Only tokens from specific collections may nest tokens under this one747		SourceCollectionIsNotAllowedToNest,748749		/// Tried to store more data than allowed in collection field750		CollectionFieldSizeExceeded,751752		/// Tried to store more property data than allowed753		NoSpaceForProperty,754755		/// Tried to store more property keys than allowed756		PropertyLimitReached,757758		/// Property key is too long759		PropertyKeyIsTooLong,760761		/// Only ASCII letters, digits, and symbols `_`, `-`, and `.` are allowed762		InvalidCharacterInPropertyKey,763764		/// Empty property keys are forbidden765		EmptyPropertyKey,766767		/// Tried to access an external collection with an internal API768		CollectionIsExternal,769770		/// Tried to access an internal collection with an external API771		CollectionIsInternal,772773		/// This address is not set as sponsor, use setCollectionSponsor first.774		ConfirmSponsorshipFail,775776		/// The user is not an administrator.777		UserIsNotCollectionAdmin,778	}779780	/// Storage of the count of created collections. Essentially contains the last collection ID.781	#[pallet::storage]782	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;783784	/// Storage of the count of deleted collections.785	#[pallet::storage]786	pub type DestroyedCollectionCount<T> =787		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;788789	/// Storage of collection info.790	#[pallet::storage]791	pub type CollectionById<T> = StorageMap<792		Hasher = Blake2_128Concat,793		Key = CollectionId,794		Value = Collection<<T as frame_system::Config>::AccountId>,795		QueryKind = OptionQuery,796	>;797798	/// Storage of collection properties.799	#[pallet::storage]800	#[pallet::getter(fn collection_properties)]801	pub type CollectionProperties<T> = StorageMap<802		Hasher = Blake2_128Concat,803		Key = CollectionId,804		Value = CollectionPropertiesT,805		QueryKind = ValueQuery,806	>;807808	/// Storage of token property permissions of a collection.809	#[pallet::storage]810	#[pallet::getter(fn property_permissions)]811	pub type CollectionPropertyPermissions<T> = StorageMap<812		Hasher = Blake2_128Concat,813		Key = CollectionId,814		Value = PropertiesPermissionMap,815		QueryKind = ValueQuery,816	>;817818	/// Storage of the amount of collection admins.819	#[pallet::storage]820	pub type AdminAmount<T> = StorageMap<821		Hasher = Blake2_128Concat,822		Key = CollectionId,823		Value = u32,824		QueryKind = ValueQuery,825	>;826827	/// List of collection admins.828	#[pallet::storage]829	pub type IsAdmin<T: Config> = StorageNMap<830		Key = (831			Key<Blake2_128Concat, CollectionId>,832			Key<Blake2_128Concat, T::CrossAccountId>,833		),834		Value = bool,835		QueryKind = ValueQuery,836	>;837838	/// Allowlisted collection users.839	#[pallet::storage]840	pub type Allowlist<T: Config> = StorageNMap<841		Key = (842			Key<Blake2_128Concat, CollectionId>,843			Key<Blake2_128Concat, T::CrossAccountId>,844		),845		Value = bool,846		QueryKind = ValueQuery,847	>;848849	/// Not used by code, exists only to provide some types to metadata.850	#[pallet::storage]851	pub type DummyStorageValue<T: Config> = StorageValue<852		Value = (853			CollectionStats,854			CollectionId,855			TokenId,856			TokenChild,857			PhantomType<(858				TokenData<T::CrossAccountId>,859				RpcCollection<T::AccountId>,860				// PoV Estimate Info861				PovInfo,862			)>,863		),864		QueryKind = OptionQuery,865	>;866}867868/// Represents the change mode for the token property.869pub enum SetPropertyMode {870	/// The token already exists.871	ExistingToken,872873	/// New token.874	NewToken {875		/// The creator of the token is the recipient.876		mint_target_is_sender: bool,877	},878}879880/// Value representation with delayed initialization time.881pub struct LazyValue<T, F: FnOnce() -> T> {882	value: Option<T>,883	f: Option<F>,884}885886impl<T, F: FnOnce() -> T> LazyValue<T, F> {887	/// Create a new LazyValue.888	pub fn new(f: F) -> Self {889		Self {890			value: None,891			f: Some(f),892		}893	}894895	/// Get the value. If it call furst time the value will be initialized.896	pub fn value(&mut self) -> &T {897		if self.value.is_none() {898			self.value = Some(self.f.take().unwrap()())899		}900901		self.value.as_ref().unwrap()902	}903904	/// Is value initialized.905	pub fn has_value(&self) -> bool {906		self.value.is_some()907	}908}909910fn check_token_permissions<T, FCA, FTO, FTE>(911	collection_admin_permitted: bool,912	token_owner_permitted: bool,913	is_collection_admin: &mut LazyValue<bool, FCA>,914	is_token_owner: &mut LazyValue<Result<bool, DispatchError>, FTO>,915	is_token_exist: &mut LazyValue<bool, FTE>,916) -> DispatchResult917where918	T: Config,919	FCA: FnOnce() -> bool,920	FTO: FnOnce() -> Result<bool, DispatchError>,921	FTE: FnOnce() -> bool,922{923	if !(collection_admin_permitted && *is_collection_admin.value()924		|| token_owner_permitted && (*is_token_owner.value())?)925	{926		fail!(<Error<T>>::NoPermission);927	}928929	let token_certainly_exist = is_token_owner.has_value() && (*is_token_owner.value())?;930	if !token_certainly_exist && !is_token_exist.value() {931		fail!(<Error<T>>::TokenNotFound);932	}933	Ok(())934}935936impl<T: Config> Pallet<T> {937	/// Enshure that receiver address is correct.938	///939	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens.940	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {941		ensure!(942			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,943			<Error<T>>::AddressIsZero944		);945		Ok(())946	}947948	/// Get a vector of collection admins.949	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {950		<IsAdmin<T>>::iter_prefix((collection,))951			.map(|(a, _)| a)952			.collect()953	}954955	/// Get a vector of users allowed to mint tokens.956	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {957		<Allowlist<T>>::iter_prefix((collection,))958			.map(|(a, _)| a)959			.collect()960	}961962	/// Is `user` allowed to mint token in `collection`.963	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {964		<Allowlist<T>>::get((collection, user))965	}966967	/// Get statistics of collections.968	pub fn collection_stats() -> CollectionStats {969		let created = <CreatedCollectionCount<T>>::get();970		let destroyed = <DestroyedCollectionCount<T>>::get();971		CollectionStats {972			created: created.0,973			destroyed: destroyed.0,974			alive: created.0 - destroyed.0,975		}976	}977978	/// Get the effective limits for the collection.979	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {980		let collection = <CollectionById<T>>::get(collection)?;981		let limits = collection.limits;982		let effective_limits = CollectionLimits {983			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),984			sponsored_data_size: Some(limits.sponsored_data_size()),985			sponsored_data_rate_limit: Some(986				limits987					.sponsored_data_rate_limit988					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),989			),990			token_limit: Some(limits.token_limit()),991			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(992				match collection.mode {993					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,994					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,995					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,996				},997			)),998			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),999			owner_can_transfer: Some(limits.owner_can_transfer()),1000			owner_can_destroy: Some(limits.owner_can_destroy()),1001			transfers_enabled: Some(limits.transfers_enabled()),1002		};10031004		Some(effective_limits)1005	}10061007	/// Returns information about the `collection` adapted for rpc.1008	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {1009		let Collection {1010			name,1011			description,1012			owner,1013			mode,1014			token_prefix,1015			sponsorship,1016			limits,1017			permissions,1018			flags,1019		} = <CollectionById<T>>::get(collection)?;10201021		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)1022			.into_iter()1023			.map(|(key, permission)| PropertyKeyPermission { key, permission })1024			.collect();10251026		let properties = <CollectionProperties<T>>::get(collection)1027			.into_iter()1028			.map(|(key, value)| Property { key, value })1029			.collect();10301031		let permissions = CollectionPermissions {1032			access: Some(permissions.access()),1033			mint_mode: Some(permissions.mint_mode()),1034			nesting: Some(permissions.nesting().clone()),1035		};10361037		Some(RpcCollection {1038			name: name.into_inner(),1039			description: description.into_inner(),1040			owner,1041			mode,1042			token_prefix: token_prefix.into_inner(),1043			sponsorship,1044			limits,1045			permissions,1046			token_property_permissions,1047			properties,1048			read_only: flags.external,10491050			flags: RpcCollectionFlags {1051				foreign: flags.foreign,1052				erc721metadata: flags.erc721metadata,1053			},1054		})1055	}1056}10571058macro_rules! limit_default {1059	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1060		$(1061			if let Some($new) = $new.$field {1062				let $old = $old.$field($($arg)?);1063				let _ = $new;1064				let _ = $old;1065				$check1066			} else {1067				$new.$field = $old.$field1068			}1069		)*1070	}};1071}1072macro_rules! limit_default_clone {1073	($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1074		$(1075			if let Some($new) = $new.$field.clone() {1076				let $old = $old.$field($($arg)?);1077				let _ = $new;1078				let _ = $old;1079				$check1080			} else {1081				$new.$field = $old.$field.clone()1082			}1083		)*1084	}};1085}10861087impl<T: Config> Pallet<T> {1088	/// Create new collection.1089	///1090	/// * `owner` - The owner of the collection.1091	/// * `data` - Description of the created collection.1092	/// * `flags` - Extra flags to store.1093	pub fn init_collection(1094		owner: T::CrossAccountId,1095		payer: T::CrossAccountId,1096		data: CreateCollectionData<T::CrossAccountId>,1097	) -> Result<CollectionId, DispatchError> {1098		ensure!(data.flags.is_allowed_for_user(), <Error<T>>::NoPermission);1099		Self::init_collection_internal(owner, payer, data)1100	}11011102	/// Initializes the collection with ForeignCollection flag. Returns [CollectionId] on success, [DispatchError] otherwise.1103	pub fn init_foreign_collection(1104		owner: T::CrossAccountId,1105		payer: T::CrossAccountId,1106		mut data: CreateCollectionData<T::CrossAccountId>,1107	) -> Result<CollectionId, DispatchError> {1108		data.flags.foreign = true;1109		let id = Self::init_collection_internal(owner, payer, data)?;1110		Ok(id)1111	}11121113	fn init_collection_internal(1114		owner: T::CrossAccountId,1115		payer: T::CrossAccountId,1116		data: CreateCollectionData<T::CrossAccountId>,1117	) -> Result<CollectionId, DispatchError> {1118		{1119			ensure!(1120				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,1121				Error::<T>::CollectionTokenPrefixLimitExceeded1122			);1123		}11241125		let created_count = <CreatedCollectionCount<T>>::get()1126			.01127			.checked_add(1)1128			.ok_or(ArithmeticError::Overflow)?;1129		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;1130		let id = CollectionId(created_count);11311132		// bound Total number of collections1133		ensure!(1134			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,1135			<Error<T>>::TotalCollectionsLimitExceeded1136		);11371138		// =========11391140		let collection = Collection {1141			owner: owner.as_sub().clone(),1142			name: data.name,1143			mode: data.mode.clone(),1144			description: data.description,1145			token_prefix: data.token_prefix,1146			sponsorship: data1147				.pending_sponsor1148				.map(|sponsor| SponsorshipState::Unconfirmed(sponsor.as_sub().clone()))1149				.unwrap_or_default(),1150			limits: data1151				.limits1152				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))1153				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,1154			permissions: data1155				.permissions1156				.map(|permissions| {1157					Self::clamp_permissions(data.mode.clone(), &Default::default(), permissions)1158				})1159				.unwrap_or_else(|| Ok(CollectionPermissions::default()))?,1160			flags: data.flags,1161		};11621163		let mut collection_properties = CollectionPropertiesT::new();1164		collection_properties1165			.try_set_from_iter(data.properties.into_iter())1166			.map_err(<Error<T>>::from)?;11671168		CollectionProperties::<T>::insert(id, collection_properties);11691170		let mut token_props_permissions = PropertiesPermissionMap::new();1171		token_props_permissions1172			.try_set_from_iter(data.token_property_permissions.into_iter())1173			.map_err(<Error<T>>::from)?;11741175		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);11761177		let mut admin_amount = 0u32;1178		for admin in data.admin_list.iter() {1179			if !<IsAdmin<T>>::get((id, admin)) {1180				<IsAdmin<T>>::insert((id, admin), true);1181				admin_amount = admin_amount1182					.checked_add(1)1183					.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1184			}1185		}1186		ensure!(1187			admin_amount <= Self::collection_admins_limit(),1188			<Error<T>>::CollectionAdminCountExceeded,1189		);1190		<AdminAmount<T>>::insert(id, admin_amount);11911192		// Take a (non-refundable) deposit of collection creation1193		{1194			let mut imbalance = <Debt<T::AccountId, <T as Config>::Currency>>::zero();1195			imbalance.subsume(<T as Config>::Currency::deposit(1196				&T::TreasuryAccountId::get(),1197				T::CollectionCreationPrice::get(),1198				Precision::Exact,1199			)?);1200			let credit =1201				<T as Config>::Currency::settle(payer.as_sub(), imbalance, Preservation::Preserve)1202					.map_err(|_| Error::<T>::NotSufficientFounds)?;12031204			debug_assert!(credit.peek().is_zero())1205		}12061207		<CreatedCollectionCount<T>>::put(created_count);1208		<Pallet<T>>::deposit_event(Event::CollectionCreated(1209			id,1210			data.mode.id(),1211			owner.as_sub().clone(),1212		));1213		<PalletEvm<T>>::deposit_log(1214			erc::CollectionHelpersEvents::CollectionCreated {1215				owner: *owner.as_eth(),1216				collection_id: eth::collection_id_to_address(id),1217			}1218			.to_log(T::ContractAddress::get()),1219		);1220		<CollectionById<T>>::insert(id, collection);1221		Ok(id)1222	}12231224	/// Destroy collection.1225	///1226	/// * `collection` - Collection handler.1227	/// * `sender` - The owner or administrator of the collection.1228	pub fn destroy_collection(1229		collection: CollectionHandle<T>,1230		sender: &T::CrossAccountId,1231	) -> DispatchResult {1232		ensure!(1233			collection.limits.owner_can_destroy(),1234			<Error<T>>::NoPermission,1235		);1236		collection.check_is_owner(sender)?;12371238		let destroyed_collections = <DestroyedCollectionCount<T>>::get()1239			.01240			.checked_add(1)1241			.ok_or(ArithmeticError::Overflow)?;12421243		// =========12441245		<DestroyedCollectionCount<T>>::put(destroyed_collections);1246		<CollectionById<T>>::remove(collection.id);1247		<AdminAmount<T>>::remove(collection.id);1248		let _ = <IsAdmin<T>>::clear_prefix((collection.id,), u32::MAX, None);1249		let _ = <Allowlist<T>>::clear_prefix((collection.id,), u32::MAX, None);1250		<CollectionProperties<T>>::remove(collection.id);12511252		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));12531254		<PalletEvm<T>>::deposit_log(1255			erc::CollectionHelpersEvents::CollectionDestroyed {1256				collection_id: eth::collection_id_to_address(collection.id),1257			}1258			.to_log(T::ContractAddress::get()),1259		);1260		Ok(())1261	}12621263	/// This function sets or removes a collection properties according to1264	/// `properties_updates` contents:1265	/// * sets a property under the <key> with the value provided `(<key>, Some(<value>))`1266	/// * removes a property under the <key> if the value is `None` `(<key>, None)`.1267	///1268	/// This function fires an event for each property change.1269	/// In case of an error, all the changes (including the events) will be reverted1270	/// since the function is transactional.1271	#[transactional]1272	fn modify_collection_properties(1273		collection: &CollectionHandle<T>,1274		sender: &T::CrossAccountId,1275		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,1276	) -> DispatchResult {1277		collection.check_is_owner_or_admin(sender)?;12781279		let mut stored_properties = <CollectionProperties<T>>::get(collection.id);12801281		for (key, value) in properties_updates {1282			match value {1283				Some(value) => {1284					stored_properties1285						.try_set(key.clone(), value)1286						.map_err(<Error<T>>::from)?;12871288					Self::deposit_event(Event::CollectionPropertySet(collection.id, key));1289					<PalletEvm<T>>::deposit_log(1290						erc::CollectionHelpersEvents::CollectionChanged {1291							collection_id: eth::collection_id_to_address(collection.id),1292						}1293						.to_log(T::ContractAddress::get()),1294					);1295				}1296				None => {1297					stored_properties.remove(&key).map_err(<Error<T>>::from)?;12981299					Self::deposit_event(Event::CollectionPropertyDeleted(collection.id, key));1300					<PalletEvm<T>>::deposit_log(1301						erc::CollectionHelpersEvents::CollectionChanged {1302							collection_id: eth::collection_id_to_address(collection.id),1303						}1304						.to_log(T::ContractAddress::get()),1305					);1306				}1307			}1308		}13091310		<CollectionProperties<T>>::set(collection.id, stored_properties);13111312		Ok(())1313	}13141315	/// A batch operation to add, edit or remove properties for a token.1316	/// It sets or removes a token's properties according to1317	/// `properties_updates` contents:1318	/// * sets a property under the <key> with the value provided `(<key>, Some(<value>))`1319	/// * removes a property under the <key> if the value is `None` `(<key>, None)`.1320	///1321	/// All affected properties should have `mutable` permission1322	/// to be **deleted** or to be **set more than once**,1323	/// and the sender should have permission to edit those properties.1324	///1325	/// This function fires an event for each property change.1326	/// In case of an error, all the changes (including the events) will be reverted1327	/// since the function is transactional.1328	#[allow(clippy::too_many_arguments)]1329	pub fn modify_token_properties<FTO, FTE>(1330		collection: &CollectionHandle<T>,1331		sender: &T::CrossAccountId,1332		token_id: TokenId,1333		is_token_exist: &mut LazyValue<bool, FTE>,1334		properties_updates: impl Iterator<Item = (PropertyKey, Option<PropertyValue>)>,1335		mut stored_properties: TokenProperties,1336		is_token_owner: &mut LazyValue<Result<bool, DispatchError>, FTO>,1337		set_token_properties: impl FnOnce(TokenProperties),1338		log: evm_coder::ethereum::Log,1339	) -> DispatchResult1340	where1341		FTO: FnOnce() -> Result<bool, DispatchError>,1342		FTE: FnOnce() -> bool,1343	{1344		let mut is_collection_admin = LazyValue::new(|| collection.is_owner_or_admin(sender));1345		let permissions = Self::property_permissions(collection.id);13461347		let mut changed = false;1348		for (key, value) in properties_updates {1349			let permission = permissions1350				.get(&key)1351				.cloned()1352				.unwrap_or_else(PropertyPermission::none);13531354			let property_exists = stored_properties.get(&key).is_some();13551356			match permission {1357				PropertyPermission { mutable: false, .. } if property_exists => {1358					return Err(<Error<T>>::NoPermission.into());1359				}13601361				PropertyPermission {1362					collection_admin,1363					token_owner,1364					..1365				} => check_token_permissions::<T, _, FTO, FTE>(1366					collection_admin,1367					token_owner,1368					&mut is_collection_admin,1369					is_token_owner,1370					is_token_exist,1371				)?,1372			}13731374			match value {1375				Some(value) => {1376					stored_properties1377						.try_set(key.clone(), value)1378						.map_err(<Error<T>>::from)?;13791380					Self::deposit_event(Event::TokenPropertySet(collection.id, token_id, key));1381				}1382				None => {1383					stored_properties.remove(&key).map_err(<Error<T>>::from)?;13841385					Self::deposit_event(Event::TokenPropertyDeleted(collection.id, token_id, key));1386				}1387			}13881389			changed = true;1390		}13911392		if changed {1393			<PalletEvm<T>>::deposit_log(log);1394		}13951396		set_token_properties(stored_properties);13971398		Ok(())1399	}14001401	/// Sets or unsets the approval of a given operator.1402	///1403	/// The `operator` is allowed to transfer all token pieces of the `owner` on their behalf.1404	/// - `owner`: Token owner1405	/// - `operator`: Operator1406	/// - `approve`: Should operator status be granted or revoked?1407	pub fn set_allowance_for_all(1408		collection: &CollectionHandle<T>,1409		owner: &T::CrossAccountId,1410		operator: &T::CrossAccountId,1411		approve: bool,1412		set_allowance: impl FnOnce(),1413		log: evm_coder::ethereum::Log,1414	) -> DispatchResult {1415		if collection.permissions.access() == AccessMode::AllowList {1416			collection.check_allowlist(owner)?;1417			collection.check_allowlist(operator)?;1418		}14191420		Self::ensure_correct_receiver(operator)?;14211422		set_allowance();14231424		<PalletEvm<T>>::deposit_log(log);1425		Self::deposit_event(Event::ApprovedForAll(1426			collection.id,1427			owner.clone(),1428			operator.clone(),1429			approve,1430		));1431		Ok(())1432	}14331434	/// Set collection property.1435	///1436	/// * `collection` - Collection handler.1437	/// * `sender` - The owner or administrator of the collection.1438	/// * `property` - The property to set.1439	pub fn set_collection_property(1440		collection: &CollectionHandle<T>,1441		sender: &T::CrossAccountId,1442		property: Property,1443	) -> DispatchResult {1444		Self::set_collection_properties(collection, sender, [property].into_iter())1445	}14461447	/// Set a scoped collection property, where the scope is a special prefix1448	/// prohibiting a user access to change the property directly.1449	///1450	/// * `collection_id` - ID of the collection for which the property is being set.1451	/// * `scope` - Property scope.1452	/// * `property` - The property to set.1453	pub fn set_scoped_collection_property(1454		collection_id: CollectionId,1455		scope: PropertyScope,1456		property: Property,1457	) -> DispatchResult {1458		CollectionProperties::<T>::try_mutate(collection_id, |properties| {1459			properties.try_scoped_set(scope, property.key, property.value)1460		})1461		.map_err(<Error<T>>::from)?;14621463		Ok(())1464	}14651466	/// Set scoped collection properties, where the scope is a special prefix1467	/// prohibiting a user access to change the properties directly.1468	///1469	/// * `collection_id` - ID of the collection for which the properties is being set.1470	/// * `scope` - Property scope.1471	/// * `properties` - The properties to set.1472	pub fn set_scoped_collection_properties(1473		collection_id: CollectionId,1474		scope: PropertyScope,1475		properties: impl Iterator<Item = Property>,1476	) -> DispatchResult {1477		CollectionProperties::<T>::try_mutate(collection_id, |stored_properties| {1478			stored_properties.try_scoped_set_from_iter(scope, properties)1479		})1480		.map_err(<Error<T>>::from)?;14811482		Ok(())1483	}14841485	/// Set collection properties.1486	///1487	/// * `collection` - Collection handler.1488	/// * `sender` - The owner or administrator of the collection.1489	/// * `properties` - The properties to set.1490	pub fn set_collection_properties(1491		collection: &CollectionHandle<T>,1492		sender: &T::CrossAccountId,1493		properties: impl Iterator<Item = Property>,1494	) -> DispatchResult {1495		Self::modify_collection_properties(1496			collection,1497			sender,1498			properties.map(|property| (property.key, Some(property.value))),1499		)1500	}15011502	/// Delete collection property.1503	///1504	/// * `collection` - Collection handler.1505	/// * `sender` - The owner or administrator of the collection.1506	/// * `property` - The property to delete.1507	pub fn delete_collection_property(1508		collection: &CollectionHandle<T>,1509		sender: &T::CrossAccountId,1510		property_key: PropertyKey,1511	) -> DispatchResult {1512		Self::delete_collection_properties(collection, sender, [property_key].into_iter())1513	}15141515	/// Delete collection properties.1516	///1517	/// * `collection` - Collection handler.1518	/// * `sender` - The owner or administrator of the collection.1519	/// * `properties` - The properties to delete.1520	pub fn delete_collection_properties(1521		collection: &CollectionHandle<T>,1522		sender: &T::CrossAccountId,1523		property_keys: impl Iterator<Item = PropertyKey>,1524	) -> DispatchResult {1525		Self::modify_collection_properties(collection, sender, property_keys.map(|key| (key, None)))1526	}15271528	/// Set collection propetry permission without any checks.1529	///1530	/// Used for migrations.1531	///1532	/// * `collection` - Collection handler.1533	/// * `property_permissions` - Property permissions.1534	pub fn set_property_permission_unchecked(1535		collection: CollectionId,1536		property_permission: PropertyKeyPermission,1537	) -> DispatchResult {1538		<CollectionPropertyPermissions<T>>::try_mutate(collection, |permissions| {1539			permissions.try_set(property_permission.key, property_permission.permission)1540		})1541		.map_err(<Error<T>>::from)?;1542		Ok(())1543	}15441545	/// Set collection property permission.1546	///1547	/// * `collection` - Collection handler.1548	/// * `sender` - The owner or administrator of the collection.1549	/// * `property_permission` - Property permission.1550	pub fn set_property_permission(1551		collection: &CollectionHandle<T>,1552		sender: &T::CrossAccountId,1553		property_permission: PropertyKeyPermission,1554	) -> DispatchResult {1555		Self::set_scoped_property_permission(1556			collection,1557			sender,1558			PropertyScope::None,1559			property_permission,1560		)1561	}15621563	/// Set collection property permission with scope.1564	///1565	/// * `collection` - Collection handler.1566	/// * `sender` - The owner or administrator of the collection.1567	/// * `scope` - Property scope.1568	/// * `property_permission` - Property permission.1569	pub fn set_scoped_property_permission(1570		collection: &CollectionHandle<T>,1571		sender: &T::CrossAccountId,1572		scope: PropertyScope,1573		property_permission: PropertyKeyPermission,1574	) -> DispatchResult {1575		collection.check_is_owner_or_admin(sender)?;15761577		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);1578		let current_permission = all_permissions.get(&property_permission.key);1579		if matches![1580			current_permission,1581			Some(PropertyPermission { mutable: false, .. })1582		] {1583			return Err(<Error<T>>::NoPermission.into());1584		}15851586		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {1587			let property_permission = property_permission.clone();1588			permissions.try_scoped_set(1589				scope,1590				property_permission.key,1591				property_permission.permission,1592			)1593		})1594		.map_err(<Error<T>>::from)?;15951596		Self::deposit_event(Event::PropertyPermissionSet(1597			collection.id,1598			property_permission.key,1599		));1600		<PalletEvm<T>>::deposit_log(1601			erc::CollectionHelpersEvents::CollectionChanged {1602				collection_id: eth::collection_id_to_address(collection.id),1603			}1604			.to_log(T::ContractAddress::get()),1605		);16061607		Ok(())1608	}16091610	/// Set token property permission.1611	///1612	/// * `collection` - Collection handler.1613	/// * `sender` - The owner or administrator of the collection.1614	/// * `property_permissions` - Property permissions.1615	#[transactional]1616	pub fn set_token_property_permissions(1617		collection: &CollectionHandle<T>,1618		sender: &T::CrossAccountId,1619		property_permissions: Vec<PropertyKeyPermission>,1620	) -> DispatchResult {1621		Self::set_scoped_token_property_permissions(1622			collection,1623			sender,1624			PropertyScope::None,1625			property_permissions,1626		)1627	}16281629	/// Set token property permission with scope.1630	///1631	/// * `collection` - Collection handler.1632	/// * `sender` - The owner or administrator of the collection.1633	/// * `scope` - Property scope.1634	/// * `property_permissions` - Property permissions.1635	#[transactional]1636	pub fn set_scoped_token_property_permissions(1637		collection: &CollectionHandle<T>,1638		sender: &T::CrossAccountId,1639		scope: PropertyScope,1640		property_permissions: Vec<PropertyKeyPermission>,1641	) -> DispatchResult {1642		for prop_pemission in property_permissions {1643			Self::set_scoped_property_permission(collection, sender, scope, prop_pemission)?;1644		}16451646		Ok(())1647	}16481649	/// Get collection property.1650	pub fn get_collection_property(1651		collection_id: CollectionId,1652		key: &PropertyKey,1653	) -> Option<PropertyValue> {1654		Self::collection_properties(collection_id).get(key).cloned()1655	}16561657	/// Convert byte vector to property key vector.1658	pub fn bytes_keys_to_property_keys(1659		keys: Vec<Vec<u8>>,1660	) -> Result<Vec<PropertyKey>, DispatchError> {1661		keys.into_iter()1662			.map(|key| -> Result<PropertyKey, DispatchError> {1663				key.try_into()1664					.map_err(|_| <Error<T>>::PropertyKeyIsTooLong.into())1665			})1666			.collect::<Result<Vec<PropertyKey>, DispatchError>>()1667	}16681669	/// Get properties according to given keys.1670	pub fn filter_collection_properties(1671		collection_id: CollectionId,1672		keys: Option<Vec<PropertyKey>>,1673	) -> Result<Vec<Property>, DispatchError> {1674		let properties = Self::collection_properties(collection_id);16751676		let properties = keys1677			.map(|keys| {1678				keys.into_iter()1679					.filter_map(|key| {1680						properties.get(&key).map(|value| Property {1681							key,1682							value: value.clone(),1683						})1684					})1685					.collect()1686			})1687			.unwrap_or_else(|| {1688				properties1689					.into_iter()1690					.map(|(key, value)| Property { key, value })1691					.collect()1692			});16931694		Ok(properties)1695	}16961697	/// Get property permissions according to given keys.1698	pub fn filter_property_permissions(1699		collection_id: CollectionId,1700		keys: Option<Vec<PropertyKey>>,1701	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {1702		let permissions = Self::property_permissions(collection_id);17031704		let key_permissions = keys1705			.map(|keys| {1706				keys.into_iter()1707					.filter_map(|key| {1708						permissions1709							.get(&key)1710							.map(|permission| PropertyKeyPermission {1711								key,1712								permission: permission.clone(),1713							})1714					})1715					.collect()1716			})1717			.unwrap_or_else(|| {1718				permissions1719					.into_iter()1720					.map(|(key, permission)| PropertyKeyPermission { key, permission })1721					.collect()1722			});17231724		Ok(key_permissions)1725	}17261727	/// Toggle `user` participation in the `collection`'s allow list.1728	/// #### Store read/writes1729	/// 1 writes1730	pub fn toggle_allowlist(1731		collection: &CollectionHandle<T>,1732		sender: &T::CrossAccountId,1733		user: &T::CrossAccountId,1734		allowed: bool,1735	) -> DispatchResult {1736		collection.check_is_owner_or_admin(sender)?;17371738		// =========17391740		if allowed {1741			<Allowlist<T>>::insert((collection.id, user), true);1742			Self::deposit_event(Event::<T>::AllowListAddressAdded(1743				collection.id,1744				user.clone(),1745			));1746		} else {1747			<Allowlist<T>>::remove((collection.id, user));1748			Self::deposit_event(Event::<T>::AllowListAddressRemoved(1749				collection.id,1750				user.clone(),1751			));1752		}17531754		<PalletEvm<T>>::deposit_log(1755			erc::CollectionHelpersEvents::CollectionChanged {1756				collection_id: eth::collection_id_to_address(collection.id),1757			}1758			.to_log(T::ContractAddress::get()),1759		);17601761		Ok(())1762	}17631764	/// Toggle `user` participation in the `collection`'s admin list.1765	/// #### Store read/writes1766	/// 2 reads, 2 writes1767	pub fn toggle_admin(1768		collection: &CollectionHandle<T>,1769		sender: &T::CrossAccountId,1770		user: &T::CrossAccountId,1771		admin: bool,1772	) -> DispatchResult {1773		collection.check_is_internal()?;1774		collection.check_is_owner(sender)?;17751776		let is_admin = <IsAdmin<T>>::get((collection.id, user));1777		if is_admin == admin {1778			if admin {1779				return Ok(());1780			} else {1781				return Err(Error::<T>::UserIsNotCollectionAdmin.into());1782			}1783		}1784		let amount = <AdminAmount<T>>::get(collection.id);17851786		// =========17871788		if admin {1789			let amount = amount1790				.checked_add(1)1791				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1792			ensure!(1793				amount <= Self::collection_admins_limit(),1794				<Error<T>>::CollectionAdminCountExceeded,1795			);17961797			<AdminAmount<T>>::insert(collection.id, amount);1798			<IsAdmin<T>>::insert((collection.id, user), true);17991800			Self::deposit_event(Event::<T>::CollectionAdminAdded(1801				collection.id,1802				user.clone(),1803			));1804		} else {1805			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1806			<IsAdmin<T>>::remove((collection.id, user));18071808			Self::deposit_event(Event::<T>::CollectionAdminRemoved(1809				collection.id,1810				user.clone(),1811			));1812		}18131814		<PalletEvm<T>>::deposit_log(1815			erc::CollectionHelpersEvents::CollectionChanged {1816				collection_id: eth::collection_id_to_address(collection.id),1817			}1818			.to_log(T::ContractAddress::get()),1819		);18201821		Ok(())1822	}18231824	/// Update collection limits.1825	pub fn update_limits(1826		user: &T::CrossAccountId,1827		collection: &mut CollectionHandle<T>,1828		new_limit: CollectionLimits,1829	) -> DispatchResult {1830		collection.check_is_internal()?;1831		collection.check_is_owner_or_admin(user)?;18321833		collection.limits =1834			Self::clamp_limits(collection.mode.clone(), &collection.limits, new_limit)?;18351836		Self::deposit_event(Event::<T>::CollectionLimitSet(collection.id));1837		<PalletEvm<T>>::deposit_log(1838			erc::CollectionHelpersEvents::CollectionChanged {1839				collection_id: eth::collection_id_to_address(collection.id),1840			}1841			.to_log(T::ContractAddress::get()),1842		);18431844		collection.save()1845	}18461847	/// Merge set fields from `new_limit` to `old_limit`.1848	fn clamp_limits(1849		mode: CollectionMode,1850		old_limit: &CollectionLimits,1851		mut new_limit: CollectionLimits,1852	) -> Result<CollectionLimits, DispatchError> {1853		let limits = old_limit;1854		limit_default!(old_limit, new_limit,1855			account_token_ownership_limit => ensure!(1856				new_limit <= MAX_TOKEN_OWNERSHIP,1857				<Error<T>>::CollectionLimitBoundsExceeded,1858			),1859			sponsored_data_size => ensure!(1860				new_limit <= CUSTOM_DATA_LIMIT,1861				<Error<T>>::CollectionLimitBoundsExceeded,1862			),18631864			sponsored_data_rate_limit => {},1865			token_limit => ensure!(1866				old_limit >= new_limit && new_limit > 0,1867				<Error<T>>::CollectionTokenLimitExceeded1868			),18691870			sponsor_transfer_timeout(match mode {1871				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1872				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1873				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1874			}) => ensure!(1875				new_limit <= MAX_SPONSOR_TIMEOUT,1876				<Error<T>>::CollectionLimitBoundsExceeded,1877			),1878			sponsor_approve_timeout => {},1879			owner_can_transfer => ensure!(1880				!limits.owner_can_transfer_instaled() ||1881				old_limit || !new_limit,1882				<Error<T>>::OwnerPermissionsCantBeReverted,1883			),1884			owner_can_destroy => ensure!(1885				old_limit || !new_limit,1886				<Error<T>>::OwnerPermissionsCantBeReverted,1887			),1888			transfers_enabled => {},1889		);1890		Ok(new_limit)1891	}18921893	/// Update collection permissions.1894	pub fn update_permissions(1895		user: &T::CrossAccountId,1896		collection: &mut CollectionHandle<T>,1897		new_permission: CollectionPermissions,1898	) -> DispatchResult {1899		collection.check_is_internal()?;1900		collection.check_is_owner_or_admin(user)?;1901		collection.permissions = Self::clamp_permissions(1902			collection.mode.clone(),1903			&collection.permissions,1904			new_permission,1905		)?;19061907		Self::deposit_event(Event::<T>::CollectionPermissionSet(collection.id));1908		<PalletEvm<T>>::deposit_log(1909			erc::CollectionHelpersEvents::CollectionChanged {1910				collection_id: eth::collection_id_to_address(collection.id),1911			}1912			.to_log(T::ContractAddress::get()),1913		);19141915		collection.save()1916	}19171918	/// Merge set fields from `new_permission` to `old_permission`.1919	fn clamp_permissions(1920		_mode: CollectionMode,1921		old_permission: &CollectionPermissions,1922		mut new_permission: CollectionPermissions,1923	) -> Result<CollectionPermissions, DispatchError> {1924		limit_default_clone!(old_permission, new_permission,1925			access => {},1926			mint_mode => {},1927			nesting => { /* todo check for permissive, if only it gets out of benchmarks */ },1928		);1929		Ok(new_permission)1930	}19311932	/// Repair possibly broken properties of a collection.1933	pub fn repair_collection(collection_id: CollectionId) -> DispatchResult {1934		CollectionProperties::<T>::mutate(collection_id, |properties| {1935			properties.recompute_consumed_space();1936		});19371938		Ok(())1939	}1940}19411942/// Indicates unsupported methods by returning [Error::UnsupportedOperation].1943#[macro_export]1944macro_rules! unsupported {1945	($runtime:path) => {1946		Err($crate::Error::<$runtime>::UnsupportedOperation.into())1947	};1948}19491950/// Return weights for various worst-case operations.1951pub trait CommonWeightInfo<CrossAccountId> {1952	/// Weight of item creation.1953	fn create_item(data: &CreateItemData) -> Weight {1954		Self::create_multiple_items(from_ref(data))1955	}19561957	/// Weight of items creation.1958	fn create_multiple_items(amount: &[CreateItemData]) -> Weight;19591960	/// Weight of items creation.1961	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;19621963	/// The weight of the burning item.1964	fn burn_item() -> Weight;19651966	/// Property setting weight.1967	///1968	/// * `amount`- The number of properties to set.1969	fn set_collection_properties(amount: u32) -> Weight;19701971	/// Collection property deletion weight.1972	///1973	/// * `amount`- The number of properties to set.1974	fn delete_collection_properties(amount: u32) -> Weight;19751976	/// Token property setting weight.1977	///1978	/// * `amount`- The number of properties to set.1979	fn set_token_properties(amount: u32) -> Weight;19801981	/// Token property deletion weight.1982	///1983	/// * `amount`- The number of properties to delete.1984	fn delete_token_properties(amount: u32) -> Weight;19851986	/// Token property permissions set weight.1987	///1988	/// * `amount`- The number of property permissions to set.1989	fn set_token_property_permissions(amount: u32) -> Weight;19901991	/// Transfer price of the token or its parts.1992	fn transfer() -> Weight;19931994	/// The price of setting the permission of the operation from another user.1995	fn approve() -> Weight;19961997	/// The price of setting the permission of the operation from another user for eth mirror.1998	fn approve_from() -> Weight;19992000	/// Transfer price from another user.2001	fn transfer_from() -> Weight;20022003	/// The price of burning a token from another user.2004	fn burn_from() -> Weight;20052006	/// Differs from burn_item in case of Fungible and Refungible, as it should burn2007	/// whole users's balance.2008	///2009	/// This method shouldn't be used directly, as it doesn't count breadth price, use [burn_recursively](CommonWeightInfo::burn_recursively) instead2010	fn burn_recursively_self_raw() -> Weight;20112012	/// Cost of iterating over `amount` children while burning, without counting child burning itself.2013	///2014	/// This method shouldn't be used directly, as it doesn't count depth price, use [burn_recursively](CommonWeightInfo::burn_recursively) instead2015	fn burn_recursively_breadth_raw(amount: u32) -> Weight;20162017	/// The price of recursive burning a token.2018	///2019	/// `max_selfs` - The maximum burning weight of the token itself.2020	/// `max_breadth` - The maximum number of nested tokens to burn.2021	fn burn_recursively(max_selfs: u32, max_breadth: u32) -> Weight {2022		Self::burn_recursively_self_raw()2023			.saturating_mul(max_selfs.max(1) as u64)2024			.saturating_add(Self::burn_recursively_breadth_raw(max_breadth))2025	}20262027	/// The price of retrieving token owner2028	fn token_owner() -> Weight;20292030	/// The price of setting approval for all2031	fn set_allowance_for_all() -> Weight;20322033	/// The price of repairing an item.2034	fn force_repair_item() -> Weight;2035}20362037/// Weight info extension trait for refungible pallet.2038pub trait RefungibleExtensionsWeightInfo {2039	/// Weight of token repartition.2040	fn repartition() -> Weight;2041}20422043/// Common collection operations.2044///2045/// It wraps methods in Fungible, Nonfungible and Refungible pallets2046/// and adds weight info.2047pub trait CommonCollectionOperations<T: Config> {2048	/// Create token.2049	///2050	/// * `sender` - The user who mint the token and pays for the transaction.2051	/// * `to` - The user who will own the token.2052	/// * `data` - Token data.2053	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2054	fn create_item(2055		&self,2056		sender: T::CrossAccountId,2057		to: T::CrossAccountId,2058		data: CreateItemData,2059		nesting_budget: &dyn Budget,2060	) -> DispatchResultWithPostInfo;20612062	/// Create multiple tokens.2063	///2064	/// * `sender` - The user who mint the token and pays for the transaction.2065	/// * `to` - The user who will own the token.2066	/// * `data` - Token data.2067	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2068	fn create_multiple_items(2069		&self,2070		sender: T::CrossAccountId,2071		to: T::CrossAccountId,2072		data: Vec<CreateItemData>,2073		nesting_budget: &dyn Budget,2074	) -> DispatchResultWithPostInfo;20752076	/// Create multiple tokens.2077	///2078	/// * `sender` - The user who mint the token and pays for the transaction.2079	/// * `to` - The user who will own the token.2080	/// * `data` - Token data.2081	/// * `nesting_budget` - A budget that can be spent on nesting tokens.2082	fn create_multiple_items_ex(2083		&self,2084		sender: T::CrossAccountId,2085		data: CreateItemExData<T::CrossAccountId>,2086		nesting_budget: &dyn Budget,2087	) -> DispatchResultWithPostInfo;20882089	/// Burn token.2090	///2091	/// * `sender` - The user who owns the token.2092	/// * `token` - Token id that will burned.2093	/// * `amount` - The number of parts of the token that will be burned.2094	fn burn_item(2095		&self,2096		sender: T::CrossAccountId,2097		token: TokenId,2098		amount: u128,2099	) -> DispatchResultWithPostInfo;21002101	/// Burn token and all nested tokens recursievly.2102	///2103	/// * `sender` - The user who owns the token.2104	/// * `token` - Token id that will burned.2105	/// * `self_budget` - The budget that can be spent on burning tokens.2106	/// * `breadth_budget` - The budget that can be spent on burning nested tokens.2107	fn burn_item_recursively(2108		&self,2109		sender: T::CrossAccountId,2110		token: TokenId,2111		self_budget: &dyn Budget,2112		breadth_budget: &dyn Budget,2113	) -> DispatchResultWithPostInfo;21142115	/// Set collection properties.2116	///2117	/// * `sender` - Must be either the owner of the collection or its admin.2118	/// * `properties` - Properties to be set.2119	fn set_collection_properties(2120		&self,2121		sender: T::CrossAccountId,2122		properties: Vec<Property>,2123	) -> DispatchResultWithPostInfo;21242125	/// Delete collection properties.2126	///2127	/// * `sender` - Must be either the owner of the collection or its admin.2128	/// * `properties` - The properties to be removed.2129	fn delete_collection_properties(2130		&self,2131		sender: &T::CrossAccountId,2132		property_keys: Vec<PropertyKey>,2133	) -> DispatchResultWithPostInfo;21342135	/// Set token properties.2136	///2137	/// The appropriate [`PropertyPermission`] for the token property2138	/// must be set with [`Self::set_token_property_permissions`].2139	///2140	/// * `sender` - Must be either the owner of the token or its admin.2141	/// * `token_id` - The token for which the properties are being set.2142	/// * `properties` - Properties to be set.2143	/// * `budget` - Budget for setting properties.2144	fn set_token_properties(2145		&self,2146		sender: T::CrossAccountId,2147		token_id: TokenId,2148		properties: Vec<Property>,2149		budget: &dyn Budget,2150	) -> DispatchResultWithPostInfo;21512152	/// Remove token properties.2153	///2154	/// The appropriate [`PropertyPermission`] for the token property2155	/// must be set with [`Self::set_token_property_permissions`].2156	///2157	/// * `sender` - Must be either the owner of the token or its admin.2158	/// * `token_id` - The token for which the properties are being remove.2159	/// * `property_keys` - Keys to remove corresponding properties.2160	/// * `budget` - Budget for removing properties.2161	fn delete_token_properties(2162		&self,2163		sender: T::CrossAccountId,2164		token_id: TokenId,2165		property_keys: Vec<PropertyKey>,2166		budget: &dyn Budget,2167	) -> DispatchResultWithPostInfo;21682169	/// Set token property permissions.2170	///2171	/// * `sender` - Must be either the owner of the token or its admin.2172	/// * `token_id` - The token for which the properties are being set.2173	/// * `property_permissions` - Property permissions to be set.2174	/// * `budget` - Budget for setting properties.2175	fn set_token_property_permissions(2176		&self,2177		sender: &T::CrossAccountId,2178		property_permissions: Vec<PropertyKeyPermission>,2179	) -> DispatchResultWithPostInfo;21802181	/// Transfer amount of token pieces.2182	///2183	/// * `sender` - Donor user.2184	/// * `to` - Recepient user.2185	/// * `token` - The token of which parts are being sent.2186	/// * `amount` - The number of parts of the token that will be transferred.2187	/// * `budget` - The maximum budget that can be spent on the transfer.2188	fn transfer(2189		&self,2190		sender: T::CrossAccountId,2191		to: T::CrossAccountId,2192		token: TokenId,2193		amount: u128,2194		budget: &dyn Budget,2195	) -> DispatchResultWithPostInfo;21962197	/// Grant access to another account to transfer parts of the token owned by the calling user via [Self::transfer_from].2198	///2199	/// * `sender` - The user who grants access to the token.2200	/// * `spender` - The user to whom the rights are granted.2201	/// * `token` - The token to which access is granted.2202	/// * `amount` - The amount of pieces that another user can dispose of.2203	fn approve(2204		&self,2205		sender: T::CrossAccountId,2206		spender: T::CrossAccountId,2207		token: TokenId,2208		amount: u128,2209	) -> DispatchResultWithPostInfo;22102211	/// Grant access to another account to transfer parts of the token owned by the calling user's eth mirror via [Self::transfer_from].2212	///2213	/// * `sender` - The user who grants access to the token.2214	/// * `from` - Spender's eth mirror.2215	/// * `to` - The user to whom the rights are granted.2216	/// * `token` - The token to which access is granted.2217	/// * `amount` - The amount of pieces that another user can dispose of.2218	fn approve_from(2219		&self,2220		sender: T::CrossAccountId,2221		from: T::CrossAccountId,2222		to: T::CrossAccountId,2223		token: TokenId,2224		amount: u128,2225	) -> DispatchResultWithPostInfo;22262227	/// Send parts of a token owned by another user.2228	///2229	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2230	///2231	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2232	/// * `from` - The user who owns the token.2233	/// * `to` - Recepient user.2234	/// * `token` - The token of which parts are being sent.2235	/// * `amount` - The number of parts of the token that will be transferred.2236	/// * `budget` - The maximum budget that can be spent on the transfer.2237	fn transfer_from(2238		&self,2239		sender: T::CrossAccountId,2240		from: T::CrossAccountId,2241		to: T::CrossAccountId,2242		token: TokenId,2243		amount: u128,2244		budget: &dyn Budget,2245	) -> DispatchResultWithPostInfo;22462247	/// Burn parts of a token owned by another user.2248	///2249	/// Before calling this method, you must grant rights to the calling user via [`Self::approve`].2250	///2251	/// * `sender` - The user who must have access to the token (see [`Self::approve`]).2252	/// * `from` - The user who owns the token.2253	/// * `token` - The token of which parts are being sent.2254	/// * `amount` - The number of parts of the token that will be transferred.2255	/// * `budget` - The maximum budget that can be spent on the burn.2256	fn burn_from(2257		&self,2258		sender: T::CrossAccountId,2259		from: T::CrossAccountId,2260		token: TokenId,2261		amount: u128,2262		budget: &dyn Budget,2263	) -> DispatchResultWithPostInfo;22642265	/// Check permission to nest token.2266	///2267	/// * `sender` - The user who initiated the check.2268	/// * `from` - The token that is checked for embedding.2269	/// * `under` - Token under which to check.2270	/// * `budget` - The maximum budget that can be spent on the check.2271	fn check_nesting(2272		&self,2273		sender: T::CrossAccountId,2274		from: (CollectionId, TokenId),2275		under: TokenId,2276		budget: &dyn Budget,2277	) -> DispatchResult;22782279	/// Nest one token into another.2280	///2281	/// * `under` - Token holder.2282	/// * `to_nest` - Nested token.2283	fn nest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22842285	/// Unnest token.2286	///2287	/// * `under` - Token holder.2288	/// * `to_nest` - Token to unnest.2289	fn unnest(&self, under: TokenId, to_nest: (CollectionId, TokenId));22902291	/// Get all user tokens.2292	///2293	/// * `account` - Account for which you need to get tokens.2294	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;22952296	/// Get all the tokens in the collection.2297	fn collection_tokens(&self) -> Vec<TokenId>;22982299	/// Check if the token exists.2300	///2301	/// * `token` - Id token to check.2302	fn token_exists(&self, token: TokenId) -> bool;23032304	/// Get the id of the last minted token.2305	fn last_token_id(&self) -> TokenId;23062307	/// Get the owner of the token.2308	///2309	/// * `token` - The token for which you need to find out the owner.2310	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError>;23112312	/// Returns 10 tokens owners in no particular order.2313	///2314	/// * `token` - The token for which you need to find out the owners.2315	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId>;23162317	/// Get the value of the token property by key.2318	///2319	/// * `token` - Token with the property to get.2320	/// * `key` - Property name.2321	fn token_property(&self, token_id: TokenId, key: &PropertyKey) -> Option<PropertyValue>;23222323	/// Get a set of token properties by key vector.2324	///2325	/// * `token` - Token with the property to get.2326	/// * `keys` - Vector of property keys. If this parameter is [None](sp_std::result::Result),2327	/// then all properties are returned.2328	fn token_properties(&self, token: TokenId, keys: Option<Vec<PropertyKey>>) -> Vec<Property>;23292330	/// Amount of unique collection tokens2331	fn total_supply(&self) -> u32;23322333	/// Amount of different tokens account has.2334	///2335	/// * `account` - The account for which need to get the balance.2336	fn account_balance(&self, account: T::CrossAccountId) -> u32;23372338	/// Amount of specific token account have.2339	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;23402341	/// Amount of token pieces2342	fn total_pieces(&self, token: TokenId) -> Option<u128>;23432344	/// Get the number of parts of the token that a trusted user can manage.2345	///2346	/// * `sender` - Trusted user.2347	/// * `spender` - Owner of the token.2348	/// * `token` - The token for which to get the value.2349	fn allowance(2350		&self,2351		sender: T::CrossAccountId,2352		spender: T::CrossAccountId,2353		token: TokenId,2354	) -> u128;23552356	/// Get extension for RFT collection.2357	fn refungible_extensions(&self) -> Option<&dyn RefungibleExtensions<T>>;23582359	/// The `operator` is allowed to transfer all tokens of the `owner` on their behalf.2360	/// * `owner` - Token owner2361	/// * `operator` - Operator2362	/// * `approve` - Should operator status be granted or revoked?2363	fn set_allowance_for_all(2364		&self,2365		owner: T::CrossAccountId,2366		operator: T::CrossAccountId,2367		approve: bool,2368	) -> DispatchResultWithPostInfo;23692370	/// Tells whether the given `owner` approves the `operator`.2371	fn allowance_for_all(&self, owner: T::CrossAccountId, operator: T::CrossAccountId) -> bool;23722373	/// Repairs a possibly broken item.2374	fn repair_item(&self, token: TokenId) -> DispatchResultWithPostInfo;2375}23762377/// Extension for RFT collection.2378pub trait RefungibleExtensions<T>2379where2380	T: Config,2381{2382	/// Change the number of parts of the token.2383	///2384	/// When the value changes down, this function is equivalent to burning parts of the token.2385	///2386	/// * `sender` - The user calling the repartition operation. Must be the owner of the token.2387	/// * `token` - The token for which you want to change the number of parts.2388	/// * `amount` - The new value of the parts of the token.2389	fn repartition(2390		&self,2391		sender: &T::CrossAccountId,2392		token: TokenId,2393		amount: u128,2394	) -> DispatchResultWithPostInfo;2395}23962397/// Merge [`DispatchResult`] with [`Weight`] into [`DispatchResultWithPostInfo`].2398///2399/// Used for [`CommonCollectionOperations`] implementations and flexible enough to do so.2400pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {2401	let post_info = PostDispatchInfo {2402		actual_weight: Some(weight),2403		pays_fee: Pays::Yes,2404	};2405	match res {2406		Ok(()) => Ok(post_info),2407		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),2408	}2409}24102411impl<T: Config> From<PropertiesError> for Error<T> {2412	fn from(error: PropertiesError) -> Self {2413		match error {2414			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,2415			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,2416			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,2417			PropertiesError::PropertyKeyIsTooLong => Self::PropertyKeyIsTooLong,2418			PropertiesError::EmptyPropertyKey => Self::EmptyPropertyKey,2419		}2420	}2421}24222423#[cfg(feature = "tests")]2424pub mod tests {2425	use crate::{DispatchResult, DispatchError, LazyValue, Config};24262427	const fn to_bool(u: u8) -> bool {2428		u != 02429	}24302431	#[derive(Debug)]2432	pub struct TestCase {2433		pub collection_admin: bool,2434		pub is_collection_admin: bool,2435		pub token_owner: bool,2436		pub is_token_owner: bool,2437		pub no_permission: bool,2438	}24392440	impl TestCase {2441		const fn new(2442			collection_admin: u8,2443			is_collection_admin: u8,2444			token_owner: u8,2445			is_token_owner: u8,2446			no_permission: u8,2447		) -> Self {2448			Self {2449				collection_admin: to_bool(collection_admin),2450				is_collection_admin: to_bool(is_collection_admin),2451				token_owner: to_bool(token_owner),2452				is_token_owner: to_bool(is_token_owner),2453				no_permission: to_bool(no_permission),2454			}2455		}2456	}24572458	#[rustfmt::skip]2459	pub const table: [TestCase; 16] = [2460		//                    ┌╴collection_admin2461		//                    │  ┌╴is_collection_admin2462		//                    │  │   ┌╴token_owner2463		//                    │  │   │  ┌╴is_token_ownership2464		//                    │  │   │  │   ┌╴no_permission2465		/*  0*/ TestCase::new(0, 0,  0, 0,  1),2466		/*  1*/ TestCase::new(0, 0,  0, 1,  1),2467		/*  2*/ TestCase::new(0, 0,  1, 0,  1),2468		/*  3*/ TestCase::new(0, 0,  1, 1,  0),2469		/*  4*/ TestCase::new(0, 1,  0, 0,  1),2470		/*  5*/ TestCase::new(0, 1,  0, 1,  1),2471		/*  6*/ TestCase::new(0, 1,  1, 0,  1),2472		/*  7*/ TestCase::new(0, 1,  1, 1,  0),2473		/*  8*/ TestCase::new(1, 0,  0, 0,  1),2474		/*  9*/ TestCase::new(1, 0,  0, 1,  1),2475		/* 10*/ TestCase::new(1, 0,  1, 0,  1),2476		/* 11*/ TestCase::new(1, 0,  1, 1,  0),2477		/* 12*/ TestCase::new(1, 1,  0, 0,  0),2478		/* 13*/ TestCase::new(1, 1,  0, 1,  0),2479		/* 14*/ TestCase::new(1, 1,  1, 0,  0),2480		/* 15*/ TestCase::new(1, 1,  1, 1,  0),2481	];24822483	pub fn check_token_permissions<T, FCA, FTO, FTE>(2484		collection_admin_permitted: bool,2485		token_owner_permitted: bool,2486		is_collection_admin: &mut LazyValue<bool, FCA>,2487		check_token_ownership: &mut LazyValue<Result<bool, DispatchError>, FTO>,2488		check_token_existence: &mut LazyValue<bool, FTE>,2489	) -> DispatchResult2490	where2491		T: Config,2492		FCA: FnOnce() -> bool,2493		FTO: FnOnce() -> Result<bool, DispatchError>,2494		FTE: FnOnce() -> bool,2495	{2496		crate::check_token_permissions::<T, FCA, FTO, FTE>(2497			collection_admin_permitted,2498			token_owner_permitted,2499			is_collection_admin,2500			check_token_ownership,2501			check_token_existence,2502		)2503	}2504}