git.delta.rocks / unique-network / refs/commits / fe4e7633ea11

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, fail,26	traits::{Imbalance, Get, Currency, WithdrawReasons, ExistenceRequirement},27	BoundedVec,28	weights::Pays,29};30use pallet_evm::GasWeightMapping;31use up_data_structs::{32	COLLECTION_NUMBER_LIMIT, Collection, RpcCollection, CollectionId, CreateItemData,33	MAX_TOKEN_PREFIX_LENGTH, COLLECTION_ADMINS_LIMIT, MetaUpdatePermission, TokenId,34	CollectionStats, MAX_TOKEN_OWNERSHIP, CollectionMode, NFT_SPONSOR_TRANSFER_TIMEOUT,35	FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, MAX_SPONSOR_TIMEOUT,36	CUSTOM_DATA_LIMIT, CollectionLimits, CustomDataLimit, CreateCollectionData, SponsorshipState,37	CreateItemExData, SponsoringRateLimit, budget::Budget, COLLECTION_FIELD_LIMIT, CollectionField,38	PhantomType, Property, Properties, PropertiesPermissionMap, PropertyKey, PropertyPermission,39	PropertiesError, PropertyKeyPermission, TokenData, TrySet,40};41pub use pallet::*;42use sp_core::H160;43use sp_runtime::{ArithmeticError, DispatchError, DispatchResult};44#[cfg(feature = "runtime-benchmarks")]45pub mod benchmarking;46pub mod dispatch;47pub mod erc;48pub mod eth;4950#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]51pub struct CollectionHandle<T: Config> {52	pub id: CollectionId,53	collection: Collection<T::AccountId>,54	pub recorder: SubstrateRecorder<T>,55}56impl<T: Config> WithRecorder<T> for CollectionHandle<T> {57	fn recorder(&self) -> &SubstrateRecorder<T> {58		&self.recorder59	}60	fn into_recorder(self) -> SubstrateRecorder<T> {61		self.recorder62	}63}64impl<T: Config> CollectionHandle<T> {65	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {66		<CollectionById<T>>::get(id).map(|collection| Self {67			id,68			collection,69			recorder: SubstrateRecorder::new(eth::collection_id_to_address(id), gas_limit),70		})71	}72	pub fn new(id: CollectionId) -> Option<Self> {73		Self::new_with_gas_limit(id, u64::MAX)74	}75	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {76		Ok(Self::new(id).ok_or(<Error<T>>::CollectionNotFound)?)77	}78	pub fn log_mirrored(&self, log: impl evm_coder::ToLog) {79		self.recorder.log_mirrored(log)80	}81	pub fn log_direct(&self, log: impl evm_coder::ToLog) {82		self.recorder.log_direct(log)83	}84	pub fn consume_store_reads(&self, reads: u64) -> evm_coder::execution::Result<()> {85		self.recorder86			.consume_gas(T::GasWeightMapping::weight_to_gas(87				<T as frame_system::Config>::DbWeight::get()88					.read89					.saturating_mul(reads),90			))91	}92	pub fn consume_store_writes(&self, writes: u64) -> evm_coder::execution::Result<()> {93		self.recorder94			.consume_gas(T::GasWeightMapping::weight_to_gas(95				<T as frame_system::Config>::DbWeight::get()96					.write97					.saturating_mul(writes),98			))99	}100	pub fn submit_logs(self) {101		self.recorder.submit_logs()102	}103	pub fn save(self) -> DispatchResult {104		self.recorder.submit_logs();105		<CollectionById<T>>::insert(self.id, self.collection);106		Ok(())107	}108}109impl<T: Config> Deref for CollectionHandle<T> {110	type Target = Collection<T::AccountId>;111112	fn deref(&self) -> &Self::Target {113		&self.collection114	}115}116117impl<T: Config> DerefMut for CollectionHandle<T> {118	fn deref_mut(&mut self) -> &mut Self::Target {119		&mut self.collection120	}121}122123impl<T: Config> CollectionHandle<T> {124	pub fn check_is_owner(&self, subject: &T::CrossAccountId) -> DispatchResult {125		ensure!(*subject.as_sub() == self.owner, <Error<T>>::NoPermission);126		Ok(())127	}128	pub fn is_owner_or_admin(&self, subject: &T::CrossAccountId) -> bool {129		*subject.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, subject))130	}131	pub fn check_is_owner_or_admin(&self, subject: &T::CrossAccountId) -> DispatchResult {132		ensure!(self.is_owner_or_admin(subject), <Error<T>>::NoPermission);133		Ok(())134	}135	pub fn ignores_allowance(&self, user: &T::CrossAccountId) -> bool {136		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)137	}138	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> bool {139		self.limits.owner_can_transfer() && self.is_owner_or_admin(user)140	}141	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {142		ensure!(143			<Allowlist<T>>::get((self.id, user)),144			<Error<T>>::AddressNotInAllowlist145		);146		Ok(())147	}148149	pub fn check_can_update_meta(150		&self,151		subject: &T::CrossAccountId,152		item_owner: &T::CrossAccountId,153	) -> DispatchResult {154		match self.meta_update_permission {155			MetaUpdatePermission::ItemOwner => {156				ensure!(subject == item_owner, <Error<T>>::NoPermission);157				Ok(())158			}159			MetaUpdatePermission::Admin => self.check_is_owner_or_admin(subject),160			MetaUpdatePermission::None => fail!(<Error<T>>::NoPermission),161		}162	}163}164165#[frame_support::pallet]166pub mod pallet {167	use super::*;168	use pallet_evm::account;169	use dispatch::CollectionDispatch;170	use frame_support::{Blake2_128Concat, pallet_prelude::*, storage::Key, traits::StorageVersion};171	use frame_system::pallet_prelude::*;172	use frame_support::traits::Currency;173	use up_data_structs::{TokenId, mapping::TokenAddressMapping};174	use scale_info::TypeInfo;175176	#[pallet::config]177	pub trait Config:178		frame_system::Config + pallet_evm_coder_substrate::Config + TypeInfo + account::Config179	{180		type Event: IsType<<Self as frame_system::Config>::Event> + From<Event<Self>>;181182		type Currency: Currency<Self::AccountId>;183184		#[pallet::constant]185		type CollectionCreationPrice: Get<186			<<Self as Config>::Currency as Currency<Self::AccountId>>::Balance,187		>;188		type CollectionDispatch: CollectionDispatch<Self>;189190		type TreasuryAccountId: Get<Self::AccountId>;191192		type EvmTokenAddressMapping: TokenAddressMapping<H160>;193		type CrossTokenAddressMapping: TokenAddressMapping<Self::CrossAccountId>;194	}195196	const STORAGE_VERSION: StorageVersion = StorageVersion::new(1);197198	#[pallet::pallet]199	#[pallet::storage_version(STORAGE_VERSION)]200	#[pallet::generate_store(pub(super) trait Store)]201	pub struct Pallet<T>(_);202203	#[pallet::extra_constants]204	impl<T: Config> Pallet<T> {205		pub fn collection_admins_limit() -> u32 {206			COLLECTION_ADMINS_LIMIT207		}208	}209210	#[pallet::event]211	#[pallet::generate_deposit(pub fn deposit_event)]212	pub enum Event<T: Config> {213		/// New collection was created214		///215		/// # Arguments216		///217		/// * collection_id: Globally unique identifier of newly created collection.218		///219		/// * mode: [CollectionMode] converted into u8.220		///221		/// * account_id: Collection owner.222		CollectionCreated(CollectionId, u8, T::AccountId),223224		/// New collection was destroyed225		///226		/// # Arguments227		///228		/// * collection_id: Globally unique identifier of collection.229		CollectionDestroyed(CollectionId),230231		/// New item was created.232		///233		/// # Arguments234		///235		/// * collection_id: Id of the collection where item was created.236		///237		/// * item_id: Id of an item. Unique within the collection.238		///239		/// * recipient: Owner of newly created item240		///241		/// * amount: Always 1 for NFT242		ItemCreated(CollectionId, TokenId, T::CrossAccountId, u128),243244		/// Collection item was burned.245		///246		/// # Arguments247		///248		/// * collection_id.249		///250		/// * item_id: Identifier of burned NFT.251		///252		/// * owner: which user has destroyed its tokens253		///254		/// * amount: Always 1 for NFT255		ItemDestroyed(CollectionId, TokenId, T::CrossAccountId, u128),256257		/// Item was transferred258		///259		/// * collection_id: Id of collection to which item is belong260		///261		/// * item_id: Id of an item262		///263		/// * sender: Original owner of item264		///265		/// * recipient: New owner of item266		///267		/// * amount: Always 1 for NFT268		Transfer(269			CollectionId,270			TokenId,271			T::CrossAccountId,272			T::CrossAccountId,273			u128,274		),275276		/// * collection_id277		///278		/// * item_id279		///280		/// * sender281		///282		/// * spender283		///284		/// * amount285		Approved(286			CollectionId,287			TokenId,288			T::CrossAccountId,289			T::CrossAccountId,290			u128,291		),292293		CollectionPropertySet(CollectionId, PropertyKey),294295		CollectionPropertyDeleted(CollectionId, PropertyKey),296297		TokenPropertySet(CollectionId, TokenId, PropertyKey),298299		TokenPropertyDeleted(CollectionId, TokenId, PropertyKey),300301		PropertyPermissionSet(CollectionId, PropertyKey),302	}303304	#[pallet::error]305	pub enum Error<T> {306		/// This collection does not exist.307		CollectionNotFound,308		/// Sender parameter and item owner must be equal.309		MustBeTokenOwner,310		/// No permission to perform action311		NoPermission,312		/// Collection is not in mint mode.313		PublicMintingNotAllowed,314		/// Address is not in allow list.315		AddressNotInAllowlist,316317		/// Collection name can not be longer than 63 char.318		CollectionNameLimitExceeded,319		/// Collection description can not be longer than 255 char.320		CollectionDescriptionLimitExceeded,321		/// Token prefix can not be longer than 15 char.322		CollectionTokenPrefixLimitExceeded,323		/// Total collections bound exceeded.324		TotalCollectionsLimitExceeded,325		/// variable_data exceeded data limit.326		TokenVariableDataLimitExceeded,327		/// Exceeded max admin count328		CollectionAdminCountExceeded,329		/// Collection limit bounds per collection exceeded330		CollectionLimitBoundsExceeded,331		/// Tried to enable permissions which are only permitted to be disabled332		OwnerPermissionsCantBeReverted,333		/// Collection settings not allowing items transferring334		TransferNotAllowed,335		/// Account token limit exceeded per collection336		AccountTokenLimitExceeded,337		/// Collection token limit exceeded338		CollectionTokenLimitExceeded,339		/// Metadata flag frozen340		MetadataFlagFrozen,341342		/// Item not exists.343		TokenNotFound,344		/// Item balance not enough.345		TokenValueTooLow,346		/// Requested value more than approved.347		ApprovedValueTooLow,348		/// Tried to approve more than owned349		CantApproveMoreThanOwned,350351		/// Can't transfer tokens to ethereum zero address352		AddressIsZero,353		/// Target collection doesn't supports this operation354		UnsupportedOperation,355356		/// Not sufficient founds to perform action357		NotSufficientFounds,358359		/// Collection has nesting disabled360		NestingIsDisabled,361		/// Only owner may nest tokens under this collection362		OnlyOwnerAllowedToNest,363		/// Only tokens from specific collections may nest tokens under this364		SourceCollectionIsNotAllowedToNest,365366		/// Tried to store more data than allowed in collection field367		CollectionFieldSizeExceeded,368369		/// Tried to store more property data than allowed370		NoSpaceForProperty,371372		/// Tried to store more property keys than allowed373		PropertyLimitReached,374375		/// Unable to read array of unbounded keys376		UnableToReadUnboundedKeys,377378		/// Only ASCII letters, digits, and '_', '-' are allowed379		InvalidCharacterInPropertyKey,380381		/// Empty property keys are forbidden382		EmptyPropertyKey,383	}384385	#[pallet::storage]386	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;387	#[pallet::storage]388	pub type DestroyedCollectionCount<T> =389		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;390391	/// Collection info392	#[pallet::storage]393	pub type CollectionById<T> = StorageMap<394		Hasher = Blake2_128Concat,395		Key = CollectionId,396		Value = Collection<<T as frame_system::Config>::AccountId>,397		QueryKind = OptionQuery,398	>;399400	/// Collection properties401	#[pallet::storage]402	#[pallet::getter(fn collection_properties)]403	pub type CollectionProperties<T> = StorageMap<404		Hasher = Blake2_128Concat,405		Key = CollectionId,406		Value = Properties,407		QueryKind = ValueQuery,408		OnEmpty = up_data_structs::CollectionProperties,409	>;410411	#[pallet::storage]412	#[pallet::getter(fn property_permissions)]413	pub type CollectionPropertyPermissions<T> = StorageMap<414		Hasher = Blake2_128Concat,415		Key = CollectionId,416		Value = PropertiesPermissionMap,417		QueryKind = ValueQuery,418	>;419420	/// Large variable-size collection fields are extracted here421	#[pallet::storage]422	pub type CollectionData<T> = StorageNMap<423		Key = (424			Key<Twox64Concat, CollectionId>,425			Key<Twox64Concat, CollectionField>,426		),427		Value = BoundedVec<u8, ConstU32<COLLECTION_FIELD_LIMIT>>,428		QueryKind = ValueQuery,429	>;430431	#[pallet::storage]432	pub type AdminAmount<T> = StorageMap<433		Hasher = Blake2_128Concat,434		Key = CollectionId,435		Value = u32,436		QueryKind = ValueQuery,437	>;438439	/// List of collection admins440	#[pallet::storage]441	pub type IsAdmin<T: Config> = StorageNMap<442		Key = (443			Key<Blake2_128Concat, CollectionId>,444			Key<Blake2_128Concat, T::CrossAccountId>,445		),446		Value = bool,447		QueryKind = ValueQuery,448	>;449450	/// Allowlisted collection users451	#[pallet::storage]452	pub type Allowlist<T: Config> = StorageNMap<453		Key = (454			Key<Blake2_128Concat, CollectionId>,455			Key<Blake2_128Concat, T::CrossAccountId>,456		),457		Value = bool,458		QueryKind = ValueQuery,459	>;460461	/// Not used by code, exists only to provide some types to metadata462	#[pallet::storage]463	pub type DummyStorageValue<T: Config> = StorageValue<464		Value = (465			CollectionStats,466			CollectionId,467			TokenId,468			PhantomType<TokenData<T::CrossAccountId>>,469			PhantomType<RpcCollection<T::AccountId>>,470		),471		QueryKind = OptionQuery,472	>;473474	#[pallet::hooks]475	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {476		fn on_runtime_upgrade() -> Weight {477			if StorageVersion::get::<Pallet<T>>() < StorageVersion::new(1) {478				use up_data_structs::{CollectionVersion1, CollectionVersion2};479				<CollectionById<T>>::translate::<CollectionVersion1<T::AccountId>, _>(|id, v| {480					Self::set_field_raw(481						id,482						CollectionField::OffchainSchema,483						v.offchain_schema.clone().into_inner(),484					)485					.expect("data has lower bounds than field");486					Self::set_field_raw(487						id,488						CollectionField::ConstOnChainSchema,489						v.const_on_chain_schema.clone().into_inner(),490					)491					.expect("data has lower bounds than field");492493					Some(CollectionVersion2::from(v))494				});495			}496497			0498		}499	}500}501502impl<T: Config> Pallet<T> {503	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens504	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {505		ensure!(506			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,507			<Error<T>>::AddressIsZero508		);509		Ok(())510	}511	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {512		<IsAdmin<T>>::iter_prefix((collection,))513			.map(|(a, _)| a)514			.collect()515	}516	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {517		<Allowlist<T>>::iter_prefix((collection,))518			.map(|(a, _)| a)519			.collect()520	}521	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {522		<Allowlist<T>>::get((collection, user))523	}524	pub fn collection_stats() -> CollectionStats {525		let created = <CreatedCollectionCount<T>>::get();526		let destroyed = <DestroyedCollectionCount<T>>::get();527		CollectionStats {528			created: created.0,529			destroyed: destroyed.0,530			alive: created.0 - destroyed.0,531		}532	}533534	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {535		let collection = <CollectionById<T>>::get(collection);536		if collection.is_none() {537			return None;538		}539540		let collection = collection.unwrap();541		let limits = collection.limits;542		let effective_limits = CollectionLimits {543			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),544			sponsored_data_size: Some(limits.sponsored_data_size()),545			sponsored_data_rate_limit: Some(546				limits547					.sponsored_data_rate_limit548					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),549			),550			token_limit: Some(limits.token_limit()),551			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(552				match collection.mode {553					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,554					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,555					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,556				},557			)),558			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),559			owner_can_transfer: Some(limits.owner_can_transfer()),560			owner_can_destroy: Some(limits.owner_can_destroy()),561			transfers_enabled: Some(limits.transfers_enabled()),562			nesting_rule: Some(limits.nesting_rule().clone()),563		};564565		Some(effective_limits)566	}567568	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {569		let Collection {570			name,571			description,572			owner,573			mode,574			access,575			token_prefix,576			mint_mode,577			schema_version,578			sponsorship,579			limits,580			meta_update_permission,581		} = <CollectionById<T>>::get(collection)?;582583		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)584			.iter()585			.map(|(key, permission)| PropertyKeyPermission {586				key: key.clone(),587				permission: permission.clone(),588			})589			.collect();590591		let properties = <CollectionProperties<T>>::get(collection)592			.iter()593			.map(|(key, value)| Property {594				key: key.clone(),595				value: value.clone(),596			})597			.collect();598599		Some(RpcCollection {600			name: name.into_inner(),601			description: description.into_inner(),602			owner,603			mode,604			access,605			token_prefix: token_prefix.into_inner(),606			mint_mode,607			schema_version,608			sponsorship,609			limits,610			meta_update_permission,611			offchain_schema: <CollectionData<T>>::get((612				collection,613				CollectionField::OffchainSchema,614			))615			.into_inner(),616			const_on_chain_schema: <CollectionData<T>>::get((617				collection,618				CollectionField::ConstOnChainSchema,619			))620			.into_inner(),621			token_property_permissions,622			properties,623		})624	}625}626627impl<T: Config> Pallet<T> {628	pub fn init_collection(629		owner: T::AccountId,630		data: CreateCollectionData<T::AccountId>,631	) -> Result<CollectionId, DispatchError> {632		{633			ensure!(634				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,635				Error::<T>::CollectionTokenPrefixLimitExceeded636			);637		}638639		let created_count = <CreatedCollectionCount<T>>::get()640			.0641			.checked_add(1)642			.ok_or(ArithmeticError::Overflow)?;643		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;644		let id = CollectionId(created_count);645646		// bound Total number of collections647		ensure!(648			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,649			<Error<T>>::TotalCollectionsLimitExceeded650		);651652		// =========653654		let collection = Collection {655			owner: owner.clone(),656			name: data.name,657			mode: data.mode.clone(),658			mint_mode: false,659			access: data.access.unwrap_or_default(),660			description: data.description,661			token_prefix: data.token_prefix,662			schema_version: data.schema_version.unwrap_or_default(),663			sponsorship: data664				.pending_sponsor665				.map(SponsorshipState::Unconfirmed)666				.unwrap_or_default(),667			limits: data668				.limits669				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))670				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,671			meta_update_permission: data.meta_update_permission.unwrap_or_default(),672		};673674		let mut collection_properties = up_data_structs::CollectionProperties::get();675		collection_properties676			.try_set_from_iter(data.properties.into_iter().map(|p| (p.key, p.value)))677			.map_err(<Error<T>>::from)?;678679		CollectionProperties::<T>::insert(id, collection_properties);680681		let mut token_props_permissions = PropertiesPermissionMap::new();682		token_props_permissions683			.try_set_from_iter(684				data.token_property_permissions685					.into_iter()686					.map(|property| (property.key, property.permission)),687			)688			.map_err(<Error<T>>::from)?;689690		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);691692		// Take a (non-refundable) deposit of collection creation693		{694			let mut imbalance =695				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();696			imbalance.subsume(697				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(698					&T::TreasuryAccountId::get(),699					T::CollectionCreationPrice::get(),700				),701			);702			<T as Config>::Currency::settle(703				&owner,704				imbalance,705				WithdrawReasons::TRANSFER,706				ExistenceRequirement::KeepAlive,707			)708			.map_err(|_| Error::<T>::NotSufficientFounds)?;709		}710711		<CreatedCollectionCount<T>>::put(created_count);712		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));713		<CollectionById<T>>::insert(id, collection);714		Self::set_field_raw(715			id,716			CollectionField::OffchainSchema,717			data.offchain_schema.into_inner(),718		)719		.expect("data has lower bounds than field");720		Self::set_field_raw(721			id,722			CollectionField::ConstOnChainSchema,723			data.const_on_chain_schema.into_inner(),724		)725		.expect("data has lower bounds than field");726		Ok(id)727	}728729	pub fn destroy_collection(730		collection: CollectionHandle<T>,731		sender: &T::CrossAccountId,732	) -> DispatchResult {733		ensure!(734			collection.limits.owner_can_destroy(),735			<Error<T>>::NoPermission,736		);737		collection.check_is_owner(sender)?;738739		let destroyed_collections = <DestroyedCollectionCount<T>>::get()740			.0741			.checked_add(1)742			.ok_or(ArithmeticError::Overflow)?;743744		// =========745746		<DestroyedCollectionCount<T>>::put(destroyed_collections);747		<CollectionById<T>>::remove(collection.id);748		<CollectionData<T>>::remove_prefix((collection.id,), None);749		<AdminAmount<T>>::remove(collection.id);750		<IsAdmin<T>>::remove_prefix((collection.id,), None);751		<Allowlist<T>>::remove_prefix((collection.id,), None);752753		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));754		Ok(())755	}756757	pub fn set_collection_property(758		collection: &CollectionHandle<T>,759		sender: &T::CrossAccountId,760		property: Property,761	) -> DispatchResult {762		collection.check_is_owner_or_admin(sender)?;763764		CollectionProperties::<T>::try_mutate(collection.id, |properties| {765			let property = property.clone();766			properties.try_set(property.key, property.value)767		})768		.map_err(<Error<T>>::from)?;769770		Self::deposit_event(Event::CollectionPropertySet(collection.id, property.key));771772		Ok(())773	}774775	pub fn set_collection_properties(776		collection: &CollectionHandle<T>,777		sender: &T::CrossAccountId,778		properties: Vec<Property>,779	) -> DispatchResult {780		for property in properties {781			Self::set_collection_property(collection, sender, property)?;782		}783784		Ok(())785	}786787	pub fn delete_collection_property(788		collection: &CollectionHandle<T>,789		sender: &T::CrossAccountId,790		property_key: PropertyKey,791	) -> DispatchResult {792		collection.check_is_owner_or_admin(sender)?;793794		CollectionProperties::<T>::try_mutate(collection.id, |properties| {795			properties.remove(&property_key)796		})797		.map_err(<Error<T>>::from)?;798799		Self::deposit_event(Event::CollectionPropertyDeleted(800			collection.id,801			property_key,802		));803804		Ok(())805	}806807	pub fn delete_collection_properties(808		collection: &CollectionHandle<T>,809		sender: &T::CrossAccountId,810		property_keys: Vec<PropertyKey>,811	) -> DispatchResult {812		for key in property_keys {813			Self::delete_collection_property(collection, sender, key)?;814		}815816		Ok(())817	}818819	pub fn set_property_permission(820		collection: &CollectionHandle<T>,821		sender: &T::CrossAccountId,822		property_permission: PropertyKeyPermission,823	) -> DispatchResult {824		collection.check_is_owner_or_admin(sender)?;825826		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);827		let current_permission = all_permissions.get(&property_permission.key);828		if matches![829			current_permission,830			Some(PropertyPermission { mutable: false, .. })831		] {832			return Err(<Error<T>>::NoPermission.into());833		}834835		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {836			let property_permission = property_permission.clone();837			permissions.try_set(property_permission.key, property_permission.permission)838		})839		.map_err(<Error<T>>::from)?;840841		Self::deposit_event(Event::PropertyPermissionSet(842			collection.id,843			property_permission.key,844		));845846		Ok(())847	}848849	pub fn set_property_permissions(850		collection: &CollectionHandle<T>,851		sender: &T::CrossAccountId,852		property_permissions: Vec<PropertyKeyPermission>,853	) -> DispatchResult {854		for prop_pemission in property_permissions {855			Self::set_property_permission(collection, sender, prop_pemission)?;856		}857858		Ok(())859	}860861	pub fn bytes_keys_to_property_keys(862		keys: Vec<Vec<u8>>,863	) -> Result<Vec<PropertyKey>, DispatchError> {864		keys.into_iter()865			.map(|key| -> Result<PropertyKey, DispatchError> {866				key.try_into()867					.map_err(|_| <Error<T>>::UnableToReadUnboundedKeys.into())868			})869			.collect::<Result<Vec<PropertyKey>, DispatchError>>()870	}871872	pub fn check_property_key(key: &PropertyKey) -> Result<(), DispatchError> {873		let key_str = sp_std::str::from_utf8(key.as_slice())874			.map_err(|_| <Error<T>>::InvalidCharacterInPropertyKey)?;875876		for ch in key_str.chars() {877			if !ch.is_ascii_alphanumeric() && ch != '_' && ch != '-' {878				return Err(<Error<T>>::InvalidCharacterInPropertyKey.into());879			}880		}881882		Ok(())883	}884885	pub fn filter_collection_properties(886		collection_id: CollectionId,887		keys: Vec<PropertyKey>,888	) -> Result<Vec<Property>, DispatchError> {889		let properties = Self::collection_properties(collection_id);890891		let properties = keys892			.into_iter()893			.filter_map(|key| {894				properties.get(&key).map(|value| Property {895					key,896					value: value.clone(),897				})898			})899			.collect();900901		Ok(properties)902	}903904	pub fn filter_property_permissions(905		collection_id: CollectionId,906		keys: Vec<PropertyKey>,907	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {908		let permissions = Self::property_permissions(collection_id);909910		let key_permissions = keys911			.into_iter()912			.filter_map(|key| {913				permissions914					.get(&key)915					.map(|permission| PropertyKeyPermission {916						key,917						permission: permission.clone(),918					})919			})920			.collect();921922		Ok(key_permissions)923	}924925	fn set_field_raw(926		collection_id: CollectionId,927		field: CollectionField,928		value: Vec<u8>,929	) -> DispatchResult {930		if !value.is_empty() {931			<CollectionData<T>>::insert(932				(collection_id, field),933				BoundedVec::try_from(value).map_err(|_| <Error<T>>::CollectionFieldSizeExceeded)?,934			)935		} else {936			<CollectionData<T>>::remove((collection_id, field));937		}938		Ok(())939	}940941	pub fn set_field(942		collection: &CollectionHandle<T>,943		sender: &T::CrossAccountId,944		field: CollectionField,945		value: Vec<u8>,946	) -> DispatchResult {947		collection.check_is_owner_or_admin(sender)?;948949		// =========950951		Self::set_field_raw(collection.id, field, value)952	}953954	pub fn toggle_allowlist(955		collection: &CollectionHandle<T>,956		sender: &T::CrossAccountId,957		user: &T::CrossAccountId,958		allowed: bool,959	) -> DispatchResult {960		collection.check_is_owner_or_admin(sender)?;961962		// =========963964		if allowed {965			<Allowlist<T>>::insert((collection.id, user), true);966		} else {967			<Allowlist<T>>::remove((collection.id, user));968		}969970		Ok(())971	}972973	pub fn toggle_admin(974		collection: &CollectionHandle<T>,975		sender: &T::CrossAccountId,976		user: &T::CrossAccountId,977		admin: bool,978	) -> DispatchResult {979		collection.check_is_owner_or_admin(sender)?;980981		let was_admin = <IsAdmin<T>>::get((collection.id, user));982		if was_admin == admin {983			return Ok(());984		}985		let amount = <AdminAmount<T>>::get(collection.id);986987		if admin {988			let amount = amount989				.checked_add(1)990				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;991			ensure!(992				amount <= Self::collection_admins_limit(),993				<Error<T>>::CollectionAdminCountExceeded,994			);995996			// =========997998			<AdminAmount<T>>::insert(collection.id, amount);999			<IsAdmin<T>>::insert((collection.id, user), true);1000		} else {1001			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1002			<IsAdmin<T>>::remove((collection.id, user));1003		}10041005		Ok(())1006	}10071008	pub fn clamp_limits(1009		mode: CollectionMode,1010		old_limit: &CollectionLimits,1011		mut new_limit: CollectionLimits,1012	) -> Result<CollectionLimits, DispatchError> {1013		macro_rules! limit_default {1014				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1015					$(1016						if let Some($new) = $new.$field {1017							let $old = $old.$field($($arg)?);1018							let _ = $new;1019							let _ = $old;1020							$check1021						} else {1022							$new.$field = $old.$field1023						}1024					)*1025				}};1026			}10271028		limit_default!(old_limit, new_limit,1029			account_token_ownership_limit => ensure!(1030				new_limit <= MAX_TOKEN_OWNERSHIP,1031				<Error<T>>::CollectionLimitBoundsExceeded,1032			),1033			sponsor_transfer_timeout(match mode {1034				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1035				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1036				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1037			}) => ensure!(1038				new_limit <= MAX_SPONSOR_TIMEOUT,1039				<Error<T>>::CollectionLimitBoundsExceeded,1040			),1041			sponsored_data_size => ensure!(1042				new_limit <= CUSTOM_DATA_LIMIT,1043				<Error<T>>::CollectionLimitBoundsExceeded,1044			),1045			token_limit => ensure!(1046				old_limit >= new_limit && new_limit > 0,1047				<Error<T>>::CollectionTokenLimitExceeded1048			),1049			owner_can_transfer => ensure!(1050				old_limit || !new_limit,1051				<Error<T>>::OwnerPermissionsCantBeReverted,1052			),1053			owner_can_destroy => ensure!(1054				old_limit || !new_limit,1055				<Error<T>>::OwnerPermissionsCantBeReverted,1056			),1057			sponsored_data_rate_limit => {},1058			transfers_enabled => {},1059		);1060		Ok(new_limit)1061	}1062}10631064#[macro_export]1065macro_rules! unsupported {1066	() => {1067		Err(<Error<T>>::UnsupportedOperation.into())1068	};1069}10701071/// Worst cases1072pub trait CommonWeightInfo<CrossAccountId> {1073	fn create_item() -> Weight;1074	fn create_multiple_items(amount: u32) -> Weight;1075	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;1076	fn burn_item() -> Weight;1077	fn set_collection_properties(amount: u32) -> Weight;1078	fn delete_collection_properties(amount: u32) -> Weight;1079	fn set_token_properties(amount: u32) -> Weight;1080	fn delete_token_properties(amount: u32) -> Weight;1081	fn set_property_permissions(amount: u32) -> Weight;1082	fn transfer() -> Weight;1083	fn approve() -> Weight;1084	fn transfer_from() -> Weight;1085	fn burn_from() -> Weight;1086	fn set_variable_metadata(bytes: u32) -> Weight;1087}10881089pub trait CommonCollectionOperations<T: Config> {1090	fn create_item(1091		&self,1092		sender: T::CrossAccountId,1093		to: T::CrossAccountId,1094		data: CreateItemData,1095		nesting_budget: &dyn Budget,1096	) -> DispatchResultWithPostInfo;1097	fn create_multiple_items(1098		&self,1099		sender: T::CrossAccountId,1100		to: T::CrossAccountId,1101		data: Vec<CreateItemData>,1102		nesting_budget: &dyn Budget,1103	) -> DispatchResultWithPostInfo;1104	fn create_multiple_items_ex(1105		&self,1106		sender: T::CrossAccountId,1107		data: CreateItemExData<T::CrossAccountId>,1108		nesting_budget: &dyn Budget,1109	) -> DispatchResultWithPostInfo;1110	fn burn_item(1111		&self,1112		sender: T::CrossAccountId,1113		token: TokenId,1114		amount: u128,1115	) -> DispatchResultWithPostInfo;1116	fn set_collection_properties(1117		&self,1118		sender: T::CrossAccountId,1119		properties: Vec<Property>,1120	) -> DispatchResultWithPostInfo;1121	fn delete_collection_properties(1122		&self,1123		sender: &T::CrossAccountId,1124		property_keys: Vec<PropertyKey>,1125	) -> DispatchResultWithPostInfo;1126	fn set_token_properties(1127		&self,1128		sender: T::CrossAccountId,1129		token_id: TokenId,1130		property: Vec<Property>,1131	) -> DispatchResultWithPostInfo;1132	fn delete_token_properties(1133		&self,1134		sender: T::CrossAccountId,1135		token_id: TokenId,1136		property_keys: Vec<PropertyKey>,1137	) -> DispatchResultWithPostInfo;1138	fn set_property_permissions(1139		&self,1140		sender: &T::CrossAccountId,1141		property_permissions: Vec<PropertyKeyPermission>,1142	) -> DispatchResultWithPostInfo;1143	fn transfer(1144		&self,1145		sender: T::CrossAccountId,1146		to: T::CrossAccountId,1147		token: TokenId,1148		amount: u128,1149		nesting_budget: &dyn Budget,1150	) -> DispatchResultWithPostInfo;1151	fn approve(1152		&self,1153		sender: T::CrossAccountId,1154		spender: T::CrossAccountId,1155		token: TokenId,1156		amount: u128,1157	) -> DispatchResultWithPostInfo;1158	fn transfer_from(1159		&self,1160		sender: T::CrossAccountId,1161		from: T::CrossAccountId,1162		to: T::CrossAccountId,1163		token: TokenId,1164		amount: u128,1165		nesting_budget: &dyn Budget,1166	) -> DispatchResultWithPostInfo;1167	fn burn_from(1168		&self,1169		sender: T::CrossAccountId,1170		from: T::CrossAccountId,1171		token: TokenId,1172		amount: u128,1173		nesting_budget: &dyn Budget,1174	) -> DispatchResultWithPostInfo;11751176	fn set_variable_metadata(1177		&self,1178		sender: T::CrossAccountId,1179		token: TokenId,1180		data: BoundedVec<u8, CustomDataLimit>,1181	) -> DispatchResultWithPostInfo;11821183	fn check_nesting(1184		&self,1185		sender: T::CrossAccountId,1186		from: (CollectionId, TokenId),1187		under: TokenId,1188		budget: &dyn Budget,1189	) -> DispatchResult;11901191	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;1192	fn collection_tokens(&self) -> Vec<TokenId>;1193	fn token_exists(&self, token: TokenId) -> bool;1194	fn last_token_id(&self) -> TokenId;11951196	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;1197	fn const_metadata(&self, token: TokenId) -> Vec<u8>;1198	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;1199	fn token_properties(&self, token_id: TokenId, keys: Vec<PropertyKey>) -> Vec<Property>;1200	/// Amount of unique collection tokens1201	fn total_supply(&self) -> u32;1202	/// Amount of different tokens account has (Applicable to nonfungible/refungible)1203	fn account_balance(&self, account: T::CrossAccountId) -> u32;1204	/// Amount of specific token account have (Applicable to fungible/refungible)1205	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;1206	fn allowance(1207		&self,1208		sender: T::CrossAccountId,1209		spender: T::CrossAccountId,1210		token: TokenId,1211	) -> u128;1212}12131214// Flexible enough for implementing CommonCollectionOperations1215pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {1216	let post_info = PostDispatchInfo {1217		actual_weight: Some(weight),1218		pays_fee: Pays::Yes,1219	};1220	match res {1221		Ok(()) => Ok(post_info),1222		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),1223	}1224}12251226impl<T: Config> From<PropertiesError> for Error<T> {1227	fn from(error: PropertiesError) -> Self {1228		match error {1229			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,1230			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,1231			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,1232			PropertiesError::EmptyPropertyKey => Self::EmptyPropertyKey,1233		}1234	}1235}