git.delta.rocks / unique-network / refs/commits / c9b52e8d7f58

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617#![cfg_attr(not(feature = "std"), no_std)]1819use core::ops::{Deref, DerefMut};20use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};21use sp_std::vec::Vec;22use pallet_evm::account::CrossAccountId;23use frame_support::{24	dispatch::{DispatchErrorWithPostInfo, DispatchResultWithPostInfo, Weight, PostDispatchInfo},25	ensure,26	traits::{Imbalance, Get, Currency, WithdrawReasons, ExistenceRequirement},27	BoundedVec,28	weights::Pays,29	transactional,30};31use pallet_evm::GasWeightMapping;32use up_data_structs::{33	COLLECTION_NUMBER_LIMIT,34	Collection,35	RpcCollection,36	CollectionId,37	CreateItemData,38	MAX_TOKEN_PREFIX_LENGTH,39	COLLECTION_ADMINS_LIMIT,40	TokenId,41	CollectionStats,42	MAX_TOKEN_OWNERSHIP,43	CollectionMode,44	NFT_SPONSOR_TRANSFER_TIMEOUT,45	FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,46	REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,47	MAX_SPONSOR_TIMEOUT,48	CUSTOM_DATA_LIMIT,49	CollectionLimits,50	CreateCollectionData,51	SponsorshipState,52	CreateItemExData,53	SponsoringRateLimit,54	budget::Budget,55	COLLECTION_FIELD_LIMIT,56	CollectionField,57	PhantomType,58	Property,59	Properties,60	PropertiesPermissionMap,61	PropertyKey,62	PropertyPermission,63	PropertiesError,64	PropertyKeyPermission,65	TokenData,66	TrySetProperty,67	// RMRK68	RmrkCollectionInfo,69	RmrkInstanceInfo,70	RmrkResourceInfo,71	RmrkPropertyInfo,72	RmrkBaseInfo,73	RmrkPartType,74	RmrkTheme,75	RmrkNftChild,76};7778pub use pallet::*;79use sp_core::H160;80use sp_runtime::{ArithmeticError, DispatchError, DispatchResult};81#[cfg(feature = "runtime-benchmarks")]82pub mod benchmarking;83pub mod dispatch;84pub mod erc;85pub mod eth;8687#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]88pub struct CollectionHandle<T: Config> {89	pub id: CollectionId,90	collection: Collection<T::AccountId>,91	pub recorder: SubstrateRecorder<T>,92}93impl<T: Config> WithRecorder<T> for CollectionHandle<T> {94	fn recorder(&self) -> &SubstrateRecorder<T> {95		&self.recorder96	}97	fn into_recorder(self) -> SubstrateRecorder<T> {98		self.recorder99	}100}101impl<T: Config> CollectionHandle<T> {102	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {103		<CollectionById<T>>::get(id).map(|collection| Self {104			id,105			collection,106			recorder: SubstrateRecorder::new(gas_limit),107		})108	}109	pub fn new(id: CollectionId) -> Option<Self> {110		Self::new_with_gas_limit(id, u64::MAX)111	}112	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {113		Ok(Self::new(id).ok_or(<Error<T>>::CollectionNotFound)?)114	}115	pub fn consume_store_reads(&self, reads: u64) -> evm_coder::execution::Result<()> {116		self.recorder117			.consume_gas(T::GasWeightMapping::weight_to_gas(118				<T as frame_system::Config>::DbWeight::get()119					.read120					.saturating_mul(reads),121			))122	}123	pub fn consume_store_writes(&self, writes: u64) -> evm_coder::execution::Result<()> {124		self.recorder125			.consume_gas(T::GasWeightMapping::weight_to_gas(126				<T as frame_system::Config>::DbWeight::get()127					.write128					.saturating_mul(writes),129			))130	}131	pub fn save(self) -> DispatchResult {132		<CollectionById<T>>::insert(self.id, self.collection);133		Ok(())134	}135}136impl<T: Config> Deref for CollectionHandle<T> {137	type Target = Collection<T::AccountId>;138139	fn deref(&self) -> &Self::Target {140		&self.collection141	}142}143144impl<T: Config> DerefMut for CollectionHandle<T> {145	fn deref_mut(&mut self) -> &mut Self::Target {146		&mut self.collection147	}148}149150impl<T: Config> CollectionHandle<T> {151	pub fn check_is_owner(&self, subject: &T::CrossAccountId) -> DispatchResult {152		ensure!(*subject.as_sub() == self.owner, <Error<T>>::NoPermission);153		Ok(())154	}155	pub fn is_owner_or_admin(&self, subject: &T::CrossAccountId) -> bool {156		*subject.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, subject))157	}158	pub fn check_is_owner_or_admin(&self, subject: &T::CrossAccountId) -> DispatchResult {159		ensure!(self.is_owner_or_admin(subject), <Error<T>>::NoPermission);160		Ok(())161	}162	pub fn ignores_allowance(&self, user: &T::CrossAccountId) -> bool {163		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)164	}165	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> bool {166		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)167	}168	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {169		ensure!(170			<Allowlist<T>>::get((self.id, user)),171			<Error<T>>::AddressNotInAllowlist172		);173		Ok(())174	}175}176177#[frame_support::pallet]178pub mod pallet {179	use super::*;180	use pallet_evm::account;181	use dispatch::CollectionDispatch;182	use frame_support::{Blake2_128Concat, pallet_prelude::*, storage::Key, traits::StorageVersion};183	use frame_system::pallet_prelude::*;184	use frame_support::traits::Currency;185	use up_data_structs::{TokenId, mapping::TokenAddressMapping};186	use scale_info::TypeInfo;187188	#[pallet::config]189	pub trait Config:190		frame_system::Config + pallet_evm_coder_substrate::Config + TypeInfo + account::Config191	{192		type Event: IsType<<Self as frame_system::Config>::Event> + From<Event<Self>>;193194		type Currency: Currency<Self::AccountId>;195196		#[pallet::constant]197		type CollectionCreationPrice: Get<198			<<Self as Config>::Currency as Currency<Self::AccountId>>::Balance,199		>;200		type CollectionDispatch: CollectionDispatch<Self>;201202		type TreasuryAccountId: Get<Self::AccountId>;203204		type EvmTokenAddressMapping: TokenAddressMapping<H160>;205		type CrossTokenAddressMapping: TokenAddressMapping<Self::CrossAccountId>;206	}207208	const STORAGE_VERSION: StorageVersion = StorageVersion::new(1);209210	#[pallet::pallet]211	#[pallet::storage_version(STORAGE_VERSION)]212	#[pallet::generate_store(pub(super) trait Store)]213	pub struct Pallet<T>(_);214215	#[pallet::extra_constants]216	impl<T: Config> Pallet<T> {217		pub fn collection_admins_limit() -> u32 {218			COLLECTION_ADMINS_LIMIT219		}220	}221222	#[pallet::event]223	#[pallet::generate_deposit(pub fn deposit_event)]224	pub enum Event<T: Config> {225		/// New collection was created226		///227		/// # Arguments228		///229		/// * collection_id: Globally unique identifier of newly created collection.230		///231		/// * mode: [CollectionMode] converted into u8.232		///233		/// * account_id: Collection owner.234		CollectionCreated(CollectionId, u8, T::AccountId),235236		/// New collection was destroyed237		///238		/// # Arguments239		///240		/// * collection_id: Globally unique identifier of collection.241		CollectionDestroyed(CollectionId),242243		/// New item was created.244		///245		/// # Arguments246		///247		/// * collection_id: Id of the collection where item was created.248		///249		/// * item_id: Id of an item. Unique within the collection.250		///251		/// * recipient: Owner of newly created item252		///253		/// * amount: Always 1 for NFT254		ItemCreated(CollectionId, TokenId, T::CrossAccountId, u128),255256		/// Collection item was burned.257		///258		/// # Arguments259		///260		/// * collection_id.261		///262		/// * item_id: Identifier of burned NFT.263		///264		/// * owner: which user has destroyed its tokens265		///266		/// * amount: Always 1 for NFT267		ItemDestroyed(CollectionId, TokenId, T::CrossAccountId, u128),268269		/// Item was transferred270		///271		/// * collection_id: Id of collection to which item is belong272		///273		/// * item_id: Id of an item274		///275		/// * sender: Original owner of item276		///277		/// * recipient: New owner of item278		///279		/// * amount: Always 1 for NFT280		Transfer(281			CollectionId,282			TokenId,283			T::CrossAccountId,284			T::CrossAccountId,285			u128,286		),287288		/// * collection_id289		///290		/// * item_id291		///292		/// * sender293		///294		/// * spender295		///296		/// * amount297		Approved(298			CollectionId,299			TokenId,300			T::CrossAccountId,301			T::CrossAccountId,302			u128,303		),304305		CollectionPropertySet(CollectionId, PropertyKey),306307		CollectionPropertyDeleted(CollectionId, PropertyKey),308309		TokenPropertySet(CollectionId, TokenId, PropertyKey),310311		TokenPropertyDeleted(CollectionId, TokenId, PropertyKey),312313		PropertyPermissionSet(CollectionId, PropertyKey),314	}315316	#[pallet::error]317	pub enum Error<T> {318		/// This collection does not exist.319		CollectionNotFound,320		/// Sender parameter and item owner must be equal.321		MustBeTokenOwner,322		/// No permission to perform action323		NoPermission,324		/// Collection is not in mint mode.325		PublicMintingNotAllowed,326		/// Address is not in allow list.327		AddressNotInAllowlist,328329		/// Collection name can not be longer than 63 char.330		CollectionNameLimitExceeded,331		/// Collection description can not be longer than 255 char.332		CollectionDescriptionLimitExceeded,333		/// Token prefix can not be longer than 15 char.334		CollectionTokenPrefixLimitExceeded,335		/// Total collections bound exceeded.336		TotalCollectionsLimitExceeded,337		/// Exceeded max admin count338		CollectionAdminCountExceeded,339		/// Collection limit bounds per collection exceeded340		CollectionLimitBoundsExceeded,341		/// Tried to enable permissions which are only permitted to be disabled342		OwnerPermissionsCantBeReverted,343		/// Collection settings not allowing items transferring344		TransferNotAllowed,345		/// Account token limit exceeded per collection346		AccountTokenLimitExceeded,347		/// Collection token limit exceeded348		CollectionTokenLimitExceeded,349		/// Metadata flag frozen350		MetadataFlagFrozen,351352		/// Item not exists.353		TokenNotFound,354		/// Item balance not enough.355		TokenValueTooLow,356		/// Requested value more than approved.357		ApprovedValueTooLow,358		/// Tried to approve more than owned359		CantApproveMoreThanOwned,360361		/// Can't transfer tokens to ethereum zero address362		AddressIsZero,363		/// Target collection doesn't supports this operation364		UnsupportedOperation,365366		/// Not sufficient founds to perform action367		NotSufficientFounds,368369		/// Collection has nesting disabled370		NestingIsDisabled,371		/// Only owner may nest tokens under this collection372		OnlyOwnerAllowedToNest,373		/// Only tokens from specific collections may nest tokens under this374		SourceCollectionIsNotAllowedToNest,375376		/// Tried to store more data than allowed in collection field377		CollectionFieldSizeExceeded,378379		/// Tried to store more property data than allowed380		NoSpaceForProperty,381382		/// Tried to store more property keys than allowed383		PropertyLimitReached,384385		/// Property key is too long386		PropertyKeyIsTooLong,387388		/// Only ASCII letters, digits, and '_', '-' are allowed389		InvalidCharacterInPropertyKey,390391		/// Empty property keys are forbidden392		EmptyPropertyKey,393	}394395	#[pallet::storage]396	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;397	#[pallet::storage]398	pub type DestroyedCollectionCount<T> =399		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;400401	/// Collection info402	#[pallet::storage]403	pub type CollectionById<T> = StorageMap<404		Hasher = Blake2_128Concat,405		Key = CollectionId,406		Value = Collection<<T as frame_system::Config>::AccountId>,407		QueryKind = OptionQuery,408	>;409410	/// Collection properties411	#[pallet::storage]412	#[pallet::getter(fn collection_properties)]413	pub type CollectionProperties<T> = StorageMap<414		Hasher = Blake2_128Concat,415		Key = CollectionId,416		Value = Properties,417		QueryKind = ValueQuery,418		OnEmpty = up_data_structs::CollectionProperties,419	>;420421	#[pallet::storage]422	#[pallet::getter(fn property_permissions)]423	pub type CollectionPropertyPermissions<T> = StorageMap<424		Hasher = Blake2_128Concat,425		Key = CollectionId,426		Value = PropertiesPermissionMap,427		QueryKind = ValueQuery,428	>;429430	/// Large variable-size collection fields are extracted here431	#[pallet::storage]432	pub type CollectionData<T> = StorageNMap<433		Key = (434			Key<Twox64Concat, CollectionId>,435			Key<Twox64Concat, CollectionField>,436		),437		Value = BoundedVec<u8, ConstU32<COLLECTION_FIELD_LIMIT>>,438		QueryKind = ValueQuery,439	>;440441	#[pallet::storage]442	pub type AdminAmount<T> = StorageMap<443		Hasher = Blake2_128Concat,444		Key = CollectionId,445		Value = u32,446		QueryKind = ValueQuery,447	>;448449	/// List of collection admins450	#[pallet::storage]451	pub type IsAdmin<T: Config> = StorageNMap<452		Key = (453			Key<Blake2_128Concat, CollectionId>,454			Key<Blake2_128Concat, T::CrossAccountId>,455		),456		Value = bool,457		QueryKind = ValueQuery,458	>;459460	/// Allowlisted collection users461	#[pallet::storage]462	pub type Allowlist<T: Config> = StorageNMap<463		Key = (464			Key<Blake2_128Concat, CollectionId>,465			Key<Blake2_128Concat, T::CrossAccountId>,466		),467		Value = bool,468		QueryKind = ValueQuery,469	>;470471	/// Not used by code, exists only to provide some types to metadata472	#[pallet::storage]473	pub type DummyStorageValue<T: Config> = StorageValue<474		Value = (475			CollectionStats,476			CollectionId,477			TokenId,478			PhantomType<TokenData<T::CrossAccountId>>,479			PhantomType<RpcCollection<T::AccountId>>,480			// RMRK481			PhantomType<RmrkCollectionInfo<T::AccountId>>,482			PhantomType<RmrkInstanceInfo<T::AccountId>>,483			PhantomType<RmrkResourceInfo>,484			PhantomType<RmrkPropertyInfo>,485			PhantomType<RmrkBaseInfo<T::AccountId>>,486			PhantomType<RmrkPartType>,487			PhantomType<RmrkTheme>,488			PhantomType<RmrkNftChild>,489		),490		QueryKind = OptionQuery,491	>;492493	#[pallet::hooks]494	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {495		fn on_runtime_upgrade() -> Weight {496			if StorageVersion::get::<Pallet<T>>() < StorageVersion::new(1) {497				use up_data_structs::{CollectionVersion1, CollectionVersion2};498				<CollectionById<T>>::translate::<CollectionVersion1<T::AccountId>, _>(|id, v| {499					Self::set_field_raw(500						id,501						CollectionField::OffchainSchema,502						v.offchain_schema.clone().into_inner(),503					)504					.expect("data has lower bounds than field");505					Self::set_field_raw(506						id,507						CollectionField::ConstOnChainSchema,508						v.const_on_chain_schema.clone().into_inner(),509					)510					.expect("data has lower bounds than field");511512					Some(CollectionVersion2::from(v))513				});514			}515516			0517		}518	}519}520521impl<T: Config> Pallet<T> {522	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens523	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {524		ensure!(525			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,526			<Error<T>>::AddressIsZero527		);528		Ok(())529	}530	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {531		<IsAdmin<T>>::iter_prefix((collection,))532			.map(|(a, _)| a)533			.collect()534	}535	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {536		<Allowlist<T>>::iter_prefix((collection,))537			.map(|(a, _)| a)538			.collect()539	}540	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {541		<Allowlist<T>>::get((collection, user))542	}543	pub fn collection_stats() -> CollectionStats {544		let created = <CreatedCollectionCount<T>>::get();545		let destroyed = <DestroyedCollectionCount<T>>::get();546		CollectionStats {547			created: created.0,548			destroyed: destroyed.0,549			alive: created.0 - destroyed.0,550		}551	}552553	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {554		let collection = <CollectionById<T>>::get(collection);555		if collection.is_none() {556			return None;557		}558559		let collection = collection.unwrap();560		let limits = collection.limits;561		let effective_limits = CollectionLimits {562			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),563			sponsored_data_size: Some(limits.sponsored_data_size()),564			sponsored_data_rate_limit: Some(565				limits566					.sponsored_data_rate_limit567					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),568			),569			token_limit: Some(limits.token_limit()),570			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(571				match collection.mode {572					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,573					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,574					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,575				},576			)),577			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),578			owner_can_transfer: Some(limits.owner_can_transfer()),579			owner_can_destroy: Some(limits.owner_can_destroy()),580			transfers_enabled: Some(limits.transfers_enabled()),581			nesting_rule: Some(limits.nesting_rule().clone()),582		};583584		Some(effective_limits)585	}586587	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {588		let Collection {589			name,590			description,591			owner,592			mode,593			access,594			token_prefix,595			mint_mode,596			schema_version,597			sponsorship,598			limits,599		} = <CollectionById<T>>::get(collection)?;600601		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)602			.iter()603			.map(|(key, permission)| PropertyKeyPermission {604				key: key.clone(),605				permission: permission.clone(),606			})607			.collect();608609		let properties = <CollectionProperties<T>>::get(collection)610			.iter()611			.map(|(key, value)| Property {612				key: key.clone(),613				value: value.clone(),614			})615			.collect();616617		Some(RpcCollection {618			name: name.into_inner(),619			description: description.into_inner(),620			owner,621			mode,622			access,623			token_prefix: token_prefix.into_inner(),624			mint_mode,625			schema_version,626			sponsorship,627			limits,628			offchain_schema: <CollectionData<T>>::get((629				collection,630				CollectionField::OffchainSchema,631			))632			.into_inner(),633			const_on_chain_schema: <CollectionData<T>>::get((634				collection,635				CollectionField::ConstOnChainSchema,636			))637			.into_inner(),638			token_property_permissions,639			properties,640		})641	}642}643644impl<T: Config> Pallet<T> {645	pub fn init_collection(646		owner: T::AccountId,647		data: CreateCollectionData<T::AccountId>,648	) -> Result<CollectionId, DispatchError> {649		{650			ensure!(651				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,652				Error::<T>::CollectionTokenPrefixLimitExceeded653			);654		}655656		let created_count = <CreatedCollectionCount<T>>::get()657			.0658			.checked_add(1)659			.ok_or(ArithmeticError::Overflow)?;660		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;661		let id = CollectionId(created_count);662663		// bound Total number of collections664		ensure!(665			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,666			<Error<T>>::TotalCollectionsLimitExceeded667		);668669		// =========670671		let collection = Collection {672			owner: owner.clone(),673			name: data.name,674			mode: data.mode.clone(),675			mint_mode: false,676			access: data.access.unwrap_or_default(),677			description: data.description,678			token_prefix: data.token_prefix,679			schema_version: data.schema_version.unwrap_or_default(),680			sponsorship: data681				.pending_sponsor682				.map(SponsorshipState::Unconfirmed)683				.unwrap_or_default(),684			limits: data685				.limits686				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))687				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,688		};689690		let mut collection_properties = up_data_structs::CollectionProperties::get();691		collection_properties692			.try_set_from_iter(data.properties.into_iter().map(|p| (p.key, p.value)))693			.map_err(<Error<T>>::from)?;694695		CollectionProperties::<T>::insert(id, collection_properties);696697		let mut token_props_permissions = PropertiesPermissionMap::new();698		token_props_permissions699			.try_set_from_iter(700				data.token_property_permissions701					.into_iter()702					.map(|property| (property.key, property.permission)),703			)704			.map_err(<Error<T>>::from)?;705706		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);707708		// Take a (non-refundable) deposit of collection creation709		{710			let mut imbalance =711				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();712			imbalance.subsume(713				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(714					&T::TreasuryAccountId::get(),715					T::CollectionCreationPrice::get(),716				),717			);718			<T as Config>::Currency::settle(719				&owner,720				imbalance,721				WithdrawReasons::TRANSFER,722				ExistenceRequirement::KeepAlive,723			)724			.map_err(|_| Error::<T>::NotSufficientFounds)?;725		}726727		<CreatedCollectionCount<T>>::put(created_count);728		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));729		<CollectionById<T>>::insert(id, collection);730		Self::set_field_raw(731			id,732			CollectionField::OffchainSchema,733			data.offchain_schema.into_inner(),734		)735		.expect("data has lower bounds than field");736		Self::set_field_raw(737			id,738			CollectionField::ConstOnChainSchema,739			data.const_on_chain_schema.into_inner(),740		)741		.expect("data has lower bounds than field");742		Ok(id)743	}744745	pub fn destroy_collection(746		collection: CollectionHandle<T>,747		sender: &T::CrossAccountId,748	) -> DispatchResult {749		ensure!(750			collection.limits.owner_can_destroy(),751			<Error<T>>::NoPermission,752		);753		collection.check_is_owner(sender)?;754755		let destroyed_collections = <DestroyedCollectionCount<T>>::get()756			.0757			.checked_add(1)758			.ok_or(ArithmeticError::Overflow)?;759760		// =========761762		<DestroyedCollectionCount<T>>::put(destroyed_collections);763		<CollectionById<T>>::remove(collection.id);764		<CollectionData<T>>::remove_prefix((collection.id,), None);765		<AdminAmount<T>>::remove(collection.id);766		<IsAdmin<T>>::remove_prefix((collection.id,), None);767		<Allowlist<T>>::remove_prefix((collection.id,), None);768769		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));770		Ok(())771	}772773	pub fn set_collection_property(774		collection: &CollectionHandle<T>,775		sender: &T::CrossAccountId,776		property: Property,777	) -> DispatchResult {778		collection.check_is_owner_or_admin(sender)?;779780		CollectionProperties::<T>::try_mutate(collection.id, |properties| {781			let property = property.clone();782			properties.try_set(property.key, property.value)783		})784		.map_err(<Error<T>>::from)?;785786		Self::deposit_event(Event::CollectionPropertySet(collection.id, property.key));787788		Ok(())789	}790791	#[transactional]792	pub fn set_collection_properties(793		collection: &CollectionHandle<T>,794		sender: &T::CrossAccountId,795		properties: Vec<Property>,796	) -> DispatchResult {797		for property in properties {798			Self::set_collection_property(collection, sender, property)?;799		}800801		Ok(())802	}803804	pub fn delete_collection_property(805		collection: &CollectionHandle<T>,806		sender: &T::CrossAccountId,807		property_key: PropertyKey,808	) -> DispatchResult {809		collection.check_is_owner_or_admin(sender)?;810811		CollectionProperties::<T>::try_mutate(collection.id, |properties| {812			properties.remove(&property_key)813		})814		.map_err(<Error<T>>::from)?;815816		Self::deposit_event(Event::CollectionPropertyDeleted(817			collection.id,818			property_key,819		));820821		Ok(())822	}823824	#[transactional]825	pub fn delete_collection_properties(826		collection: &CollectionHandle<T>,827		sender: &T::CrossAccountId,828		property_keys: Vec<PropertyKey>,829	) -> DispatchResult {830		for key in property_keys {831			Self::delete_collection_property(collection, sender, key)?;832		}833834		Ok(())835	}836837	pub fn set_property_permission(838		collection: &CollectionHandle<T>,839		sender: &T::CrossAccountId,840		property_permission: PropertyKeyPermission,841	) -> DispatchResult {842		collection.check_is_owner_or_admin(sender)?;843844		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);845		let current_permission = all_permissions.get(&property_permission.key);846		if matches![847			current_permission,848			Some(PropertyPermission { mutable: false, .. })849		] {850			return Err(<Error<T>>::NoPermission.into());851		}852853		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {854			let property_permission = property_permission.clone();855			permissions.try_set(property_permission.key, property_permission.permission)856		})857		.map_err(<Error<T>>::from)?;858859		Self::deposit_event(Event::PropertyPermissionSet(860			collection.id,861			property_permission.key,862		));863864		Ok(())865	}866867	#[transactional]868	pub fn set_property_permissions(869		collection: &CollectionHandle<T>,870		sender: &T::CrossAccountId,871		property_permissions: Vec<PropertyKeyPermission>,872	) -> DispatchResult {873		for prop_pemission in property_permissions {874			Self::set_property_permission(collection, sender, prop_pemission)?;875		}876877		Ok(())878	}879880	pub fn bytes_keys_to_property_keys(881		keys: Vec<Vec<u8>>,882	) -> Result<Vec<PropertyKey>, DispatchError> {883		keys.into_iter()884			.map(|key| -> Result<PropertyKey, DispatchError> {885				key.try_into()886					.map_err(|_| <Error<T>>::PropertyKeyIsTooLong.into())887			})888			.collect::<Result<Vec<PropertyKey>, DispatchError>>()889	}890891	pub fn filter_collection_properties(892		collection_id: CollectionId,893		keys: Option<Vec<PropertyKey>>,894	) -> Result<Vec<Property>, DispatchError> {895		let properties = Self::collection_properties(collection_id);896897		let properties = keys898			.map(|keys| {899				keys.into_iter()900					.filter_map(|key| {901						properties.get(&key).map(|value| Property {902							key,903							value: value.clone(),904						})905					})906					.collect()907			})908			.unwrap_or_else(|| {909				properties910					.iter()911					.map(|(key, value)| Property {912						key: key.clone(),913						value: value.clone(),914					})915					.collect()916			});917918		Ok(properties)919	}920921	pub fn filter_property_permissions(922		collection_id: CollectionId,923		keys: Option<Vec<PropertyKey>>,924	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {925		let permissions = Self::property_permissions(collection_id);926927		let key_permissions = keys928			.map(|keys| {929				keys.into_iter()930					.filter_map(|key| {931						permissions932							.get(&key)933							.map(|permission| PropertyKeyPermission {934								key,935								permission: permission.clone(),936							})937					})938					.collect()939			})940			.unwrap_or_else(|| {941				permissions942					.iter()943					.map(|(key, permission)| PropertyKeyPermission {944						key: key.clone(),945						permission: permission.clone(),946					})947					.collect()948			});949950		Ok(key_permissions)951	}952953	fn set_field_raw(954		collection_id: CollectionId,955		field: CollectionField,956		value: Vec<u8>,957	) -> DispatchResult {958		if !value.is_empty() {959			<CollectionData<T>>::insert(960				(collection_id, field),961				BoundedVec::try_from(value).map_err(|_| <Error<T>>::CollectionFieldSizeExceeded)?,962			)963		} else {964			<CollectionData<T>>::remove((collection_id, field));965		}966		Ok(())967	}968969	pub fn set_field(970		collection: &CollectionHandle<T>,971		sender: &T::CrossAccountId,972		field: CollectionField,973		value: Vec<u8>,974	) -> DispatchResult {975		collection.check_is_owner_or_admin(sender)?;976977		// =========978979		Self::set_field_raw(collection.id, field, value)980	}981982	pub fn toggle_allowlist(983		collection: &CollectionHandle<T>,984		sender: &T::CrossAccountId,985		user: &T::CrossAccountId,986		allowed: bool,987	) -> DispatchResult {988		collection.check_is_owner_or_admin(sender)?;989990		// =========991992		if allowed {993			<Allowlist<T>>::insert((collection.id, user), true);994		} else {995			<Allowlist<T>>::remove((collection.id, user));996		}997998		Ok(())999	}10001001	pub fn toggle_admin(1002		collection: &CollectionHandle<T>,1003		sender: &T::CrossAccountId,1004		user: &T::CrossAccountId,1005		admin: bool,1006	) -> DispatchResult {1007		collection.check_is_owner_or_admin(sender)?;10081009		let was_admin = <IsAdmin<T>>::get((collection.id, user));1010		if was_admin == admin {1011			return Ok(());1012		}1013		let amount = <AdminAmount<T>>::get(collection.id);10141015		if admin {1016			let amount = amount1017				.checked_add(1)1018				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1019			ensure!(1020				amount <= Self::collection_admins_limit(),1021				<Error<T>>::CollectionAdminCountExceeded,1022			);10231024			// =========10251026			<AdminAmount<T>>::insert(collection.id, amount);1027			<IsAdmin<T>>::insert((collection.id, user), true);1028		} else {1029			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1030			<IsAdmin<T>>::remove((collection.id, user));1031		}10321033		Ok(())1034	}10351036	pub fn clamp_limits(1037		mode: CollectionMode,1038		old_limit: &CollectionLimits,1039		mut new_limit: CollectionLimits,1040	) -> Result<CollectionLimits, DispatchError> {1041		macro_rules! limit_default {1042				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1043					$(1044						if let Some($new) = $new.$field {1045							let $old = $old.$field($($arg)?);1046							let _ = $new;1047							let _ = $old;1048							$check1049						} else {1050							$new.$field = $old.$field1051						}1052					)*1053				}};1054			}10551056		limit_default!(old_limit, new_limit,1057			account_token_ownership_limit => ensure!(1058				new_limit <= MAX_TOKEN_OWNERSHIP,1059				<Error<T>>::CollectionLimitBoundsExceeded,1060			),1061			sponsor_transfer_timeout(match mode {1062				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1063				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1064				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1065			}) => ensure!(1066				new_limit <= MAX_SPONSOR_TIMEOUT,1067				<Error<T>>::CollectionLimitBoundsExceeded,1068			),1069			sponsored_data_size => ensure!(1070				new_limit <= CUSTOM_DATA_LIMIT,1071				<Error<T>>::CollectionLimitBoundsExceeded,1072			),1073			token_limit => ensure!(1074				old_limit >= new_limit && new_limit > 0,1075				<Error<T>>::CollectionTokenLimitExceeded1076			),1077			owner_can_transfer => ensure!(1078				old_limit || !new_limit,1079				<Error<T>>::OwnerPermissionsCantBeReverted,1080			),1081			owner_can_destroy => ensure!(1082				old_limit || !new_limit,1083				<Error<T>>::OwnerPermissionsCantBeReverted,1084			),1085			sponsored_data_rate_limit => {},1086			transfers_enabled => {},1087		);1088		Ok(new_limit)1089	}1090}10911092#[macro_export]1093macro_rules! unsupported {1094	() => {1095		Err(<Error<T>>::UnsupportedOperation.into())1096	};1097}10981099/// Worst cases1100pub trait CommonWeightInfo<CrossAccountId> {1101	fn create_item() -> Weight;1102	fn create_multiple_items(amount: u32) -> Weight;1103	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;1104	fn burn_item() -> Weight;1105	fn set_collection_properties(amount: u32) -> Weight;1106	fn delete_collection_properties(amount: u32) -> Weight;1107	fn set_token_properties(amount: u32) -> Weight;1108	fn delete_token_properties(amount: u32) -> Weight;1109	fn set_property_permissions(amount: u32) -> Weight;1110	fn transfer() -> Weight;1111	fn approve() -> Weight;1112	fn transfer_from() -> Weight;1113	fn burn_from() -> Weight;1114}11151116pub trait CommonCollectionOperations<T: Config> {1117	fn create_item(1118		&self,1119		sender: T::CrossAccountId,1120		to: T::CrossAccountId,1121		data: CreateItemData,1122		nesting_budget: &dyn Budget,1123	) -> DispatchResultWithPostInfo;1124	fn create_multiple_items(1125		&self,1126		sender: T::CrossAccountId,1127		to: T::CrossAccountId,1128		data: Vec<CreateItemData>,1129		nesting_budget: &dyn Budget,1130	) -> DispatchResultWithPostInfo;1131	fn create_multiple_items_ex(1132		&self,1133		sender: T::CrossAccountId,1134		data: CreateItemExData<T::CrossAccountId>,1135		nesting_budget: &dyn Budget,1136	) -> DispatchResultWithPostInfo;1137	fn burn_item(1138		&self,1139		sender: T::CrossAccountId,1140		token: TokenId,1141		amount: u128,1142	) -> DispatchResultWithPostInfo;1143	fn set_collection_properties(1144		&self,1145		sender: T::CrossAccountId,1146		properties: Vec<Property>,1147	) -> DispatchResultWithPostInfo;1148	fn delete_collection_properties(1149		&self,1150		sender: &T::CrossAccountId,1151		property_keys: Vec<PropertyKey>,1152	) -> DispatchResultWithPostInfo;1153	fn set_token_properties(1154		&self,1155		sender: T::CrossAccountId,1156		token_id: TokenId,1157		property: Vec<Property>,1158	) -> DispatchResultWithPostInfo;1159	fn delete_token_properties(1160		&self,1161		sender: T::CrossAccountId,1162		token_id: TokenId,1163		property_keys: Vec<PropertyKey>,1164	) -> DispatchResultWithPostInfo;1165	fn set_property_permissions(1166		&self,1167		sender: &T::CrossAccountId,1168		property_permissions: Vec<PropertyKeyPermission>,1169	) -> DispatchResultWithPostInfo;1170	fn transfer(1171		&self,1172		sender: T::CrossAccountId,1173		to: T::CrossAccountId,1174		token: TokenId,1175		amount: u128,1176		nesting_budget: &dyn Budget,1177	) -> DispatchResultWithPostInfo;1178	fn approve(1179		&self,1180		sender: T::CrossAccountId,1181		spender: T::CrossAccountId,1182		token: TokenId,1183		amount: u128,1184	) -> DispatchResultWithPostInfo;1185	fn transfer_from(1186		&self,1187		sender: T::CrossAccountId,1188		from: T::CrossAccountId,1189		to: T::CrossAccountId,1190		token: TokenId,1191		amount: u128,1192		nesting_budget: &dyn Budget,1193	) -> DispatchResultWithPostInfo;1194	fn burn_from(1195		&self,1196		sender: T::CrossAccountId,1197		from: T::CrossAccountId,1198		token: TokenId,1199		amount: u128,1200		nesting_budget: &dyn Budget,1201	) -> DispatchResultWithPostInfo;12021203	fn check_nesting(1204		&self,1205		sender: T::CrossAccountId,1206		from: (CollectionId, TokenId),1207		under: TokenId,1208		budget: &dyn Budget,1209	) -> DispatchResult;12101211	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;1212	fn collection_tokens(&self) -> Vec<TokenId>;1213	fn token_exists(&self, token: TokenId) -> bool;1214	fn last_token_id(&self) -> TokenId;12151216	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;1217	fn const_metadata(&self, token: TokenId) -> Vec<u8>;1218	fn token_properties(&self, token_id: TokenId, keys: Option<Vec<PropertyKey>>) -> Vec<Property>;1219	/// Amount of unique collection tokens1220	fn total_supply(&self) -> u32;1221	/// Amount of different tokens account has (Applicable to nonfungible/refungible)1222	fn account_balance(&self, account: T::CrossAccountId) -> u32;1223	/// Amount of specific token account have (Applicable to fungible/refungible)1224	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;1225	fn allowance(1226		&self,1227		sender: T::CrossAccountId,1228		spender: T::CrossAccountId,1229		token: TokenId,1230	) -> u128;1231}12321233// Flexible enough for implementing CommonCollectionOperations1234pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {1235	let post_info = PostDispatchInfo {1236		actual_weight: Some(weight),1237		pays_fee: Pays::Yes,1238	};1239	match res {1240		Ok(()) => Ok(post_info),1241		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),1242	}1243}12441245impl<T: Config> From<PropertiesError> for Error<T> {1246	fn from(error: PropertiesError) -> Self {1247		match error {1248			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,1249			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,1250			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,1251			PropertiesError::PropertyKeyIsTooLong => Self::PropertyKeyIsTooLong,1252			PropertiesError::EmptyPropertyKey => Self::EmptyPropertyKey,1253		}1254	}1255}