git.delta.rocks / unique-network / refs/commits / 2976d69d82a2

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, Property),294295		CollectionPropertyDeleted(CollectionId, PropertyKey),296297		TokenPropertySet(CollectionId, TokenId, Property),298299		TokenPropertyDeleted(CollectionId, TokenId, PropertyKey),300301		PropertyPermissionSet(CollectionId, PropertyKeyPermission),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,380	}381382	#[pallet::storage]383	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;384	#[pallet::storage]385	pub type DestroyedCollectionCount<T> =386		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;387388	/// Collection info389	#[pallet::storage]390	pub type CollectionById<T> = StorageMap<391		Hasher = Blake2_128Concat,392		Key = CollectionId,393		Value = Collection<<T as frame_system::Config>::AccountId>,394		QueryKind = OptionQuery,395	>;396397	/// Collection properties398	#[pallet::storage]399	#[pallet::getter(fn collection_properties)]400	pub type CollectionProperties<T> = StorageMap<401		Hasher = Blake2_128Concat,402		Key = CollectionId,403		Value = Properties,404		QueryKind = ValueQuery,405		OnEmpty = up_data_structs::CollectionProperties,406	>;407408	#[pallet::storage]409	#[pallet::getter(fn property_permissions)]410	pub type CollectionPropertyPermissions<T> = StorageMap<411		Hasher = Blake2_128Concat,412		Key = CollectionId,413		Value = PropertiesPermissionMap,414		QueryKind = ValueQuery,415	>;416417	/// Large variable-size collection fields are extracted here418	#[pallet::storage]419	pub type CollectionData<T> = StorageNMap<420		Key = (421			Key<Twox64Concat, CollectionId>,422			Key<Twox64Concat, CollectionField>,423		),424		Value = BoundedVec<u8, ConstU32<COLLECTION_FIELD_LIMIT>>,425		QueryKind = ValueQuery,426	>;427428	#[pallet::storage]429	pub type AdminAmount<T> = StorageMap<430		Hasher = Blake2_128Concat,431		Key = CollectionId,432		Value = u32,433		QueryKind = ValueQuery,434	>;435436	/// List of collection admins437	#[pallet::storage]438	pub type IsAdmin<T: Config> = StorageNMap<439		Key = (440			Key<Blake2_128Concat, CollectionId>,441			Key<Blake2_128Concat, T::CrossAccountId>,442		),443		Value = bool,444		QueryKind = ValueQuery,445	>;446447	/// Allowlisted collection users448	#[pallet::storage]449	pub type Allowlist<T: Config> = StorageNMap<450		Key = (451			Key<Blake2_128Concat, CollectionId>,452			Key<Blake2_128Concat, T::CrossAccountId>,453		),454		Value = bool,455		QueryKind = ValueQuery,456	>;457458	/// Not used by code, exists only to provide some types to metadata459	#[pallet::storage]460	pub type DummyStorageValue<T: Config> = StorageValue<461		Value = (462			CollectionStats,463			CollectionId,464			TokenId,465			PhantomType<TokenData<T::CrossAccountId>>,466			PhantomType<RpcCollection<T::AccountId>>,467		),468		QueryKind = OptionQuery,469	>;470471	#[pallet::hooks]472	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {473		fn on_runtime_upgrade() -> Weight {474			if StorageVersion::get::<Pallet<T>>() < StorageVersion::new(1) {475				use up_data_structs::{CollectionVersion1, CollectionVersion2};476				<CollectionById<T>>::translate::<CollectionVersion1<T::AccountId>, _>(|id, v| {477					Self::set_field_raw(478						id,479						CollectionField::OffchainSchema,480						v.offchain_schema.clone().into_inner(),481					)482					.expect("data has lower bounds than field");483					Self::set_field_raw(484						id,485						CollectionField::VariableOnChainSchema,486						v.variable_on_chain_schema.clone().into_inner(),487					)488					.expect("data has lower bounds than field");489					Self::set_field_raw(490						id,491						CollectionField::ConstOnChainSchema,492						v.const_on_chain_schema.clone().into_inner(),493					)494					.expect("data has lower bounds than field");495496					Some(CollectionVersion2::from(v))497				});498			}499500			0501		}502	}503}504505impl<T: Config> Pallet<T> {506	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens507	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {508		ensure!(509			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,510			<Error<T>>::AddressIsZero511		);512		Ok(())513	}514	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {515		<IsAdmin<T>>::iter_prefix((collection,))516			.map(|(a, _)| a)517			.collect()518	}519	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {520		<Allowlist<T>>::iter_prefix((collection,))521			.map(|(a, _)| a)522			.collect()523	}524	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {525		<Allowlist<T>>::get((collection, user))526	}527	pub fn collection_stats() -> CollectionStats {528		let created = <CreatedCollectionCount<T>>::get();529		let destroyed = <DestroyedCollectionCount<T>>::get();530		CollectionStats {531			created: created.0,532			destroyed: destroyed.0,533			alive: created.0 - destroyed.0,534		}535	}536537	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {538		let collection = <CollectionById<T>>::get(collection);539		if collection.is_none() {540			return None;541		}542543		let collection = collection.unwrap();544		let limits = collection.limits;545		let effective_limits = CollectionLimits {546			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),547			sponsored_data_size: Some(limits.sponsored_data_size()),548			sponsored_data_rate_limit: Some(549				limits550					.sponsored_data_rate_limit551					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),552			),553			token_limit: Some(limits.token_limit()),554			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(555				match collection.mode {556					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,557					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,558					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,559				},560			)),561			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),562			owner_can_transfer: Some(limits.owner_can_transfer()),563			owner_can_destroy: Some(limits.owner_can_destroy()),564			transfers_enabled: Some(limits.transfers_enabled()),565			nesting_rule: Some(limits.nesting_rule().clone()),566		};567568		Some(effective_limits)569	}570571	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {572		let Collection {573			name,574			description,575			owner,576			mode,577			access,578			token_prefix,579			mint_mode,580			schema_version,581			sponsorship,582			limits,583			meta_update_permission,584		} = <CollectionById<T>>::get(collection)?;585586		let token_property_permissions = <CollectionPropertyPermissions<T>>::get(collection)587			.iter()588			.map(|(key, permission)| PropertyKeyPermission {589				key: key.clone(),590				permission: permission.clone(),591			})592			.collect();593594		let properties = <CollectionProperties<T>>::get(collection)595			.iter()596			.map(|(key, value)| Property {597				key: key.clone(),598				value: value.clone()599			})600			.collect();601602		Some(RpcCollection {603			name: name.into_inner(),604			description: description.into_inner(),605			owner,606			mode,607			access,608			token_prefix: token_prefix.into_inner(),609			mint_mode,610			schema_version,611			sponsorship,612			limits,613			meta_update_permission,614			offchain_schema: <CollectionData<T>>::get((615				collection,616				CollectionField::OffchainSchema,617			))618			.into_inner(),619			const_on_chain_schema: <CollectionData<T>>::get((620				collection,621				CollectionField::ConstOnChainSchema,622			))623			.into_inner(),624			variable_on_chain_schema: <CollectionData<T>>::get((625				collection,626				CollectionField::VariableOnChainSchema,627			))628			.into_inner(),629			token_property_permissions,630			properties,631		})632	}633}634635impl<T: Config> Pallet<T> {636	pub fn init_collection(637		owner: T::AccountId,638		data: CreateCollectionData<T::AccountId>,639	) -> Result<CollectionId, DispatchError> {640		{641			ensure!(642				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,643				Error::<T>::CollectionTokenPrefixLimitExceeded644			);645		}646647		let created_count = <CreatedCollectionCount<T>>::get()648			.0649			.checked_add(1)650			.ok_or(ArithmeticError::Overflow)?;651		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;652		let id = CollectionId(created_count);653654		// bound Total number of collections655		ensure!(656			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,657			<Error<T>>::TotalCollectionsLimitExceeded658		);659660		// =========661662		let collection = Collection {663			owner: owner.clone(),664			name: data.name,665			mode: data.mode.clone(),666			mint_mode: false,667			access: data.access.unwrap_or_default(),668			description: data.description,669			token_prefix: data.token_prefix,670			schema_version: data.schema_version.unwrap_or_default(),671			sponsorship: data672				.pending_sponsor673				.map(SponsorshipState::Unconfirmed)674				.unwrap_or_default(),675			limits: data676				.limits677				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))678				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,679			meta_update_permission: data.meta_update_permission.unwrap_or_default(),680		};681682		let mut collection_properties = up_data_structs::CollectionProperties::get();683		collection_properties.try_set_from_iter(684			data.properties.into_iter()685				.map(|p| (p.key, p.value))686		).map_err(|e| -> Error<T> { e.into() })?;687688		CollectionProperties::<T>::insert(id, collection_properties);689690		let mut token_props_permissions = PropertiesPermissionMap::new();691		token_props_permissions.try_set_from_iter(692			data.token_property_permissions693			.into_iter()694			.map(|property| (property.key, property.permission))695		).map_err(|e| -> Error<T> { e.into() })?;696697		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);698699		// Take a (non-refundable) deposit of collection creation700		{701			let mut imbalance =702				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();703			imbalance.subsume(704				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(705					&T::TreasuryAccountId::get(),706					T::CollectionCreationPrice::get(),707				),708			);709			<T as Config>::Currency::settle(710				&owner,711				imbalance,712				WithdrawReasons::TRANSFER,713				ExistenceRequirement::KeepAlive,714			)715			.map_err(|_| Error::<T>::NotSufficientFounds)?;716		}717718		<CreatedCollectionCount<T>>::put(created_count);719		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));720		<CollectionById<T>>::insert(id, collection);721		Self::set_field_raw(722			id,723			CollectionField::OffchainSchema,724			data.offchain_schema.into_inner(),725		)726		.expect("data has lower bounds than field");727		Self::set_field_raw(728			id,729			CollectionField::VariableOnChainSchema,730			data.variable_on_chain_schema.into_inner(),731		)732		.expect("data has lower bounds than field");733		Self::set_field_raw(734			id,735			CollectionField::ConstOnChainSchema,736			data.const_on_chain_schema.into_inner(),737		)738		.expect("data has lower bounds than field");739		Ok(id)740	}741742	pub fn destroy_collection(743		collection: CollectionHandle<T>,744		sender: &T::CrossAccountId,745	) -> DispatchResult {746		ensure!(747			collection.limits.owner_can_destroy(),748			<Error<T>>::NoPermission,749		);750		collection.check_is_owner(sender)?;751752		let destroyed_collections = <DestroyedCollectionCount<T>>::get()753			.0754			.checked_add(1)755			.ok_or(ArithmeticError::Overflow)?;756757		// =========758759		<DestroyedCollectionCount<T>>::put(destroyed_collections);760		<CollectionById<T>>::remove(collection.id);761		<CollectionData<T>>::remove_prefix((collection.id,), None);762		<AdminAmount<T>>::remove(collection.id);763		<IsAdmin<T>>::remove_prefix((collection.id,), None);764		<Allowlist<T>>::remove_prefix((collection.id,), None);765766		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));767		Ok(())768	}769770	pub fn set_collection_property(771		collection: &CollectionHandle<T>,772		sender: &T::CrossAccountId,773		property: Property,774	) -> DispatchResult {775		collection.check_is_owner_or_admin(sender)?;776777		CollectionProperties::<T>::try_mutate(collection.id, |properties| {778			let property = property.clone();779			properties.try_set(property.key, property.value)780		})781		.map_err(|e| -> Error<T> { e.into() })?;782783		Self::deposit_event(Event::CollectionPropertySet(collection.id, property));784785		Ok(())786	}787788	pub fn set_collection_properties(789		collection: &CollectionHandle<T>,790		sender: &T::CrossAccountId,791		properties: Vec<Property>,792	) -> DispatchResult {793		for property in properties {794			Self::set_collection_property(collection, sender, property)?;795		}796797		Ok(())798	}799800	pub fn delete_collection_property(801		collection: &CollectionHandle<T>,802		sender: &T::CrossAccountId,803		property_key: PropertyKey,804	) -> DispatchResult {805		collection.check_is_owner_or_admin(sender)?;806807		CollectionProperties::<T>::try_mutate(collection.id, |properties| {808			properties.remove(&property_key)809		}).map_err(|e| -> Error<T> { e.into() })?;810811		Self::deposit_event(Event::CollectionPropertyDeleted(812			collection.id,813			property_key,814		));815816		Ok(())817	}818819	pub fn delete_collection_properties(820		collection: &CollectionHandle<T>,821		sender: &T::CrossAccountId,822		property_keys: Vec<PropertyKey>,823	) -> DispatchResult {824		for key in property_keys {825			Self::delete_collection_property(collection, sender, key)?;826		}827828		Ok(())829	}830831	pub fn set_property_permission(832		collection: &CollectionHandle<T>,833		sender: &T::CrossAccountId,834		property_permission: PropertyKeyPermission,835	) -> DispatchResult {836		collection.check_is_owner_or_admin(sender)?;837838		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);839		let current_permission = all_permissions.get(&property_permission.key);840		if matches![841			current_permission,842			Some(PropertyPermission { mutable: false, .. })843		] {844			return Err(<Error<T>>::NoPermission.into());845		}846847		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {848			let property_permission = property_permission.clone();849			permissions.try_set(property_permission.key, property_permission.permission)850		})851		.map_err(|_| -> Error<T> { PropertiesError::PropertyLimitReached.into() })?;852853		Self::deposit_event(Event::PropertyPermissionSet(854			collection.id,855			property_permission,856		));857858		Ok(())859	}860861	pub fn set_property_permissions(862		collection: &CollectionHandle<T>,863		sender: &T::CrossAccountId,864		property_permissions: Vec<PropertyKeyPermission>,865	) -> DispatchResult {866		for prop_pemission in property_permissions {867			Self::set_property_permission(collection, sender, prop_pemission)?;868		}869870		Ok(())871	}872873	pub fn bytes_keys_to_property_keys(874		keys: Vec<Vec<u8>>,875	) -> Result<Vec<PropertyKey>, DispatchError> {876		keys.into_iter()877			.map(|key| -> Result<PropertyKey, DispatchError> {878				key.try_into()879					.map_err(|_| <Error<T>>::UnableToReadUnboundedKeys.into())880			})881			.collect::<Result<Vec<PropertyKey>, DispatchError>>()882	}883884	pub fn check_property_key(key: &PropertyKey) -> Result<(), DispatchError> {885		let key_str = sp_std::str::from_utf8(key.as_slice())886			.map_err(|_| <Error<T>>::InvalidCharacterInPropertyKey)?;887888		for ch in key_str.chars() {889			if !ch.is_ascii_alphanumeric() && ch != '_' && ch != '-' {890				return Err(<Error<T>>::InvalidCharacterInPropertyKey.into());891			}892		}893894		Ok(())895	}896897	pub fn filter_collection_properties(898		collection_id: CollectionId,899		keys: Vec<PropertyKey>,900	) -> Result<Vec<Property>, DispatchError> {901		let properties = Self::collection_properties(collection_id);902903		let properties = keys904			.into_iter()905			.filter_map(|key| {906				properties.get(&key)907					.map(|value| Property {908						key,909						value: value.clone(),910					})911			})912			.collect();913914		Ok(properties)915	}916917	pub fn filter_property_permissions(918		collection_id: CollectionId,919		keys: Vec<PropertyKey>,920	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {921		let permissions = Self::property_permissions(collection_id);922923		let key_permissions = keys924			.into_iter()925			.filter_map(|key| {926				permissions927					.get(&key)928					.map(|permission| PropertyKeyPermission {929						key,930						permission: permission.clone(),931					})932			})933			.collect();934935		Ok(key_permissions)936	}937938	fn set_field_raw(939		collection_id: CollectionId,940		field: CollectionField,941		value: Vec<u8>,942	) -> DispatchResult {943		if !value.is_empty() {944			<CollectionData<T>>::insert(945				(collection_id, field),946				BoundedVec::try_from(value).map_err(|_| <Error<T>>::CollectionFieldSizeExceeded)?,947			)948		} else {949			<CollectionData<T>>::remove((collection_id, field));950		}951		Ok(())952	}953954	pub fn set_field(955		collection: &CollectionHandle<T>,956		sender: &T::CrossAccountId,957		field: CollectionField,958		value: Vec<u8>,959	) -> DispatchResult {960		collection.check_is_owner_or_admin(sender)?;961962		// =========963964		Self::set_field_raw(collection.id, field, value)965	}966967	pub fn toggle_allowlist(968		collection: &CollectionHandle<T>,969		sender: &T::CrossAccountId,970		user: &T::CrossAccountId,971		allowed: bool,972	) -> DispatchResult {973		collection.check_is_owner_or_admin(sender)?;974975		// =========976977		if allowed {978			<Allowlist<T>>::insert((collection.id, user), true);979		} else {980			<Allowlist<T>>::remove((collection.id, user));981		}982983		Ok(())984	}985986	pub fn toggle_admin(987		collection: &CollectionHandle<T>,988		sender: &T::CrossAccountId,989		user: &T::CrossAccountId,990		admin: bool,991	) -> DispatchResult {992		collection.check_is_owner_or_admin(sender)?;993994		let was_admin = <IsAdmin<T>>::get((collection.id, user));995		if was_admin == admin {996			return Ok(());997		}998		let amount = <AdminAmount<T>>::get(collection.id);9991000		if admin {1001			let amount = amount1002				.checked_add(1)1003				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;1004			ensure!(1005				amount <= Self::collection_admins_limit(),1006				<Error<T>>::CollectionAdminCountExceeded,1007			);10081009			// =========10101011			<AdminAmount<T>>::insert(collection.id, amount);1012			<IsAdmin<T>>::insert((collection.id, user), true);1013		} else {1014			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));1015			<IsAdmin<T>>::remove((collection.id, user));1016		}10171018		Ok(())1019	}10201021	pub fn clamp_limits(1022		mode: CollectionMode,1023		old_limit: &CollectionLimits,1024		mut new_limit: CollectionLimits,1025	) -> Result<CollectionLimits, DispatchError> {1026		macro_rules! limit_default {1027				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1028					$(1029						if let Some($new) = $new.$field {1030							let $old = $old.$field($($arg)?);1031							let _ = $new;1032							let _ = $old;1033							$check1034						} else {1035							$new.$field = $old.$field1036						}1037					)*1038				}};1039			}10401041		limit_default!(old_limit, new_limit,1042			account_token_ownership_limit => ensure!(1043				new_limit <= MAX_TOKEN_OWNERSHIP,1044				<Error<T>>::CollectionLimitBoundsExceeded,1045			),1046			sponsor_transfer_timeout(match mode {1047				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1048				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1049				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1050			}) => ensure!(1051				new_limit <= MAX_SPONSOR_TIMEOUT,1052				<Error<T>>::CollectionLimitBoundsExceeded,1053			),1054			sponsored_data_size => ensure!(1055				new_limit <= CUSTOM_DATA_LIMIT,1056				<Error<T>>::CollectionLimitBoundsExceeded,1057			),1058			token_limit => ensure!(1059				old_limit >= new_limit && new_limit > 0,1060				<Error<T>>::CollectionTokenLimitExceeded1061			),1062			owner_can_transfer => ensure!(1063				old_limit || !new_limit,1064				<Error<T>>::OwnerPermissionsCantBeReverted,1065			),1066			owner_can_destroy => ensure!(1067				old_limit || !new_limit,1068				<Error<T>>::OwnerPermissionsCantBeReverted,1069			),1070			sponsored_data_rate_limit => {},1071			transfers_enabled => {},1072		);1073		Ok(new_limit)1074	}1075}10761077#[macro_export]1078macro_rules! unsupported {1079	() => {1080		Err(<Error<T>>::UnsupportedOperation.into())1081	};1082}10831084/// Worst cases1085pub trait CommonWeightInfo<CrossAccountId> {1086	fn create_item() -> Weight;1087	fn create_multiple_items(amount: u32) -> Weight;1088	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;1089	fn burn_item() -> Weight;1090	fn set_collection_properties(amount: u32) -> Weight;1091	fn delete_collection_properties(amount: u32) -> Weight;1092	fn set_token_properties(amount: u32) -> Weight;1093	fn delete_token_properties(amount: u32) -> Weight;1094	fn set_property_permissions(amount: u32) -> Weight;1095	fn transfer() -> Weight;1096	fn approve() -> Weight;1097	fn transfer_from() -> Weight;1098	fn burn_from() -> Weight;1099	fn set_variable_metadata(bytes: u32) -> Weight;1100}11011102pub trait CommonCollectionOperations<T: Config> {1103	fn create_item(1104		&self,1105		sender: T::CrossAccountId,1106		to: T::CrossAccountId,1107		data: CreateItemData,1108		nesting_budget: &dyn Budget,1109	) -> DispatchResultWithPostInfo;1110	fn create_multiple_items(1111		&self,1112		sender: T::CrossAccountId,1113		to: T::CrossAccountId,1114		data: Vec<CreateItemData>,1115		nesting_budget: &dyn Budget,1116	) -> DispatchResultWithPostInfo;1117	fn create_multiple_items_ex(1118		&self,1119		sender: T::CrossAccountId,1120		data: CreateItemExData<T::CrossAccountId>,1121		nesting_budget: &dyn Budget,1122	) -> DispatchResultWithPostInfo;1123	fn burn_item(1124		&self,1125		sender: T::CrossAccountId,1126		token: TokenId,1127		amount: u128,1128	) -> DispatchResultWithPostInfo;1129	fn set_collection_properties(1130		&self,1131		sender: T::CrossAccountId,1132		properties: Vec<Property>,1133	) -> DispatchResultWithPostInfo;1134	fn delete_collection_properties(1135		&self,1136		sender: &T::CrossAccountId,1137		property_keys: Vec<PropertyKey>,1138	) -> DispatchResultWithPostInfo;1139	fn set_token_properties(1140		&self,1141		sender: T::CrossAccountId,1142		token_id: TokenId,1143		property: Vec<Property>,1144	) -> DispatchResultWithPostInfo;1145	fn delete_token_properties(1146		&self,1147		sender: T::CrossAccountId,1148		token_id: TokenId,1149		property_keys: Vec<PropertyKey>,1150	) -> DispatchResultWithPostInfo;1151	fn set_property_permissions(1152		&self,1153		sender: &T::CrossAccountId,1154		property_permissions: Vec<PropertyKeyPermission>,1155	) -> DispatchResultWithPostInfo;1156	fn transfer(1157		&self,1158		sender: T::CrossAccountId,1159		to: T::CrossAccountId,1160		token: TokenId,1161		amount: u128,1162		nesting_budget: &dyn Budget,1163	) -> DispatchResultWithPostInfo;1164	fn approve(1165		&self,1166		sender: T::CrossAccountId,1167		spender: T::CrossAccountId,1168		token: TokenId,1169		amount: u128,1170	) -> DispatchResultWithPostInfo;1171	fn transfer_from(1172		&self,1173		sender: T::CrossAccountId,1174		from: T::CrossAccountId,1175		to: T::CrossAccountId,1176		token: TokenId,1177		amount: u128,1178		nesting_budget: &dyn Budget,1179	) -> DispatchResultWithPostInfo;1180	fn burn_from(1181		&self,1182		sender: T::CrossAccountId,1183		from: T::CrossAccountId,1184		token: TokenId,1185		amount: u128,1186		nesting_budget: &dyn Budget,1187	) -> DispatchResultWithPostInfo;11881189	fn set_variable_metadata(1190		&self,1191		sender: T::CrossAccountId,1192		token: TokenId,1193		data: BoundedVec<u8, CustomDataLimit>,1194	) -> DispatchResultWithPostInfo;11951196	fn check_nesting(1197		&self,1198		sender: T::CrossAccountId,1199		from: (CollectionId, TokenId),1200		under: TokenId,1201		budget: &dyn Budget,1202	) -> DispatchResult;12031204	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;1205	fn collection_tokens(&self) -> Vec<TokenId>;1206	fn token_exists(&self, token: TokenId) -> bool;1207	fn last_token_id(&self) -> TokenId;12081209	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;1210	fn const_metadata(&self, token: TokenId) -> Vec<u8>;1211	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;1212	fn token_properties(&self, token_id: TokenId, keys: Vec<PropertyKey>) -> Vec<Property>;1213	/// Amount of unique collection tokens1214	fn total_supply(&self) -> u32;1215	/// Amount of different tokens account has (Applicable to nonfungible/refungible)1216	fn account_balance(&self, account: T::CrossAccountId) -> u32;1217	/// Amount of specific token account have (Applicable to fungible/refungible)1218	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;1219	fn allowance(1220		&self,1221		sender: T::CrossAccountId,1222		spender: T::CrossAccountId,1223		token: TokenId,1224	) -> u128;1225}12261227// Flexible enough for implementing CommonCollectionOperations1228pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {1229	let post_info = PostDispatchInfo {1230		actual_weight: Some(weight),1231		pays_fee: Pays::Yes,1232	};1233	match res {1234		Ok(()) => Ok(post_info),1235		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),1236	}1237}12381239impl<T: Config> From<PropertiesError> for Error<T> {1240	fn from(error: PropertiesError) -> Self {1241		match error {1242			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,1243			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,1244			PropertiesError::InvalidCharacterInPropertyKey => Self::InvalidCharacterInPropertyKey,1245		}1246	}1247}