git.delta.rocks / unique-network / refs/commits / 6ac8e66dbab7

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, collections::btree_map::BTreeMap};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, CollectionPropertiesPermissionsVec,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,377	}378379	#[pallet::storage]380	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;381	#[pallet::storage]382	pub type DestroyedCollectionCount<T> =383		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;384385	/// Collection info386	#[pallet::storage]387	pub type CollectionById<T> = StorageMap<388		Hasher = Blake2_128Concat,389		Key = CollectionId,390		Value = Collection<<T as frame_system::Config>::AccountId>,391		QueryKind = OptionQuery,392	>;393394	/// Collection properties395	#[pallet::storage]396	#[pallet::getter(fn collection_properties)]397	pub type CollectionProperties<T> = StorageMap<398		Hasher = Blake2_128Concat,399		Key = CollectionId,400		Value = Properties,401		QueryKind = ValueQuery,402		OnEmpty = up_data_structs::CollectionProperties,403	>;404405	#[pallet::storage]406	#[pallet::getter(fn property_permissions)]407	pub type CollectionPropertyPermissions<T> = StorageMap<408		Hasher = Blake2_128Concat,409		Key = CollectionId,410		Value = PropertiesPermissionMap,411		QueryKind = ValueQuery,412	>;413414	/// Large variable-size collection fields are extracted here415	#[pallet::storage]416	pub type CollectionData<T> = StorageNMap<417		Key = (418			Key<Twox64Concat, CollectionId>,419			Key<Twox64Concat, CollectionField>,420		),421		Value = BoundedVec<u8, ConstU32<COLLECTION_FIELD_LIMIT>>,422		QueryKind = ValueQuery,423	>;424425	#[pallet::storage]426	pub type AdminAmount<T> = StorageMap<427		Hasher = Blake2_128Concat,428		Key = CollectionId,429		Value = u32,430		QueryKind = ValueQuery,431	>;432433	/// List of collection admins434	#[pallet::storage]435	pub type IsAdmin<T: Config> = StorageNMap<436		Key = (437			Key<Blake2_128Concat, CollectionId>,438			Key<Blake2_128Concat, T::CrossAccountId>,439		),440		Value = bool,441		QueryKind = ValueQuery,442	>;443444	/// Allowlisted collection users445	#[pallet::storage]446	pub type Allowlist<T: Config> = StorageNMap<447		Key = (448			Key<Blake2_128Concat, CollectionId>,449			Key<Blake2_128Concat, T::CrossAccountId>,450		),451		Value = bool,452		QueryKind = ValueQuery,453	>;454455	/// Not used by code, exists only to provide some types to metadata456	#[pallet::storage]457	pub type DummyStorageValue<T: Config> = StorageValue<458		Value = (459			CollectionStats,460			CollectionId,461			TokenId,462			PhantomType<TokenData<T::CrossAccountId>>,463			PhantomType<RpcCollection<T::AccountId>>,464		),465		QueryKind = OptionQuery,466	>;467468	#[pallet::hooks]469	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {470		fn on_runtime_upgrade() -> Weight {471			if StorageVersion::get::<Pallet<T>>() < StorageVersion::new(1) {472				use up_data_structs::{CollectionVersion1, CollectionVersion2};473				<CollectionById<T>>::translate::<CollectionVersion1<T::AccountId>, _>(|id, v| {474					Self::set_field_raw(475						id,476						CollectionField::OffchainSchema,477						v.offchain_schema.clone().into_inner(),478					)479					.expect("data has lower bounds than field");480					Self::set_field_raw(481						id,482						CollectionField::VariableOnChainSchema,483						v.variable_on_chain_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			variable_on_chain_schema: <CollectionData<T>>::get((622				collection,623				CollectionField::VariableOnChainSchema,624			))625			.into_inner(),626			token_property_permissions,627			properties,628		})629	}630}631632impl<T: Config> Pallet<T> {633	pub fn init_collection(634		owner: T::AccountId,635		data: CreateCollectionData<T::AccountId>,636	) -> Result<CollectionId, DispatchError> {637		{638			ensure!(639				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,640				Error::<T>::CollectionTokenPrefixLimitExceeded641			);642		}643644		let created_count = <CreatedCollectionCount<T>>::get()645			.0646			.checked_add(1)647			.ok_or(ArithmeticError::Overflow)?;648		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;649		let id = CollectionId(created_count);650651		// bound Total number of collections652		ensure!(653			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,654			<Error<T>>::TotalCollectionsLimitExceeded655		);656657		// =========658659		let collection = Collection {660			owner: owner.clone(),661			name: data.name,662			mode: data.mode.clone(),663			mint_mode: false,664			access: data.access.unwrap_or_default(),665			description: data.description,666			token_prefix: data.token_prefix,667			schema_version: data.schema_version.unwrap_or_default(),668			sponsorship: data669				.pending_sponsor670				.map(SponsorshipState::Unconfirmed)671				.unwrap_or_default(),672			limits: data673				.limits674				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))675				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,676			meta_update_permission: data.meta_update_permission.unwrap_or_default(),677		};678679		CollectionProperties::<T>::insert(680			id,681			Properties::from_collection_props_vec(data.properties)682				.map_err(|e| -> Error<T> { e.into() })?,683		);684685		let token_props_permissions: PropertiesPermissionMap = data686			.token_property_permissions687			.into_iter()688			.map(|property| (property.key, property.permission))689			.collect::<BTreeMap<_, _>>()690			.try_into()691			.map_err(|_| -> Error<T> { PropertiesError::PropertyLimitReached.into() })?;692693		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);694695		// Take a (non-refundable) deposit of collection creation696		{697			let mut imbalance =698				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();699			imbalance.subsume(700				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(701					&T::TreasuryAccountId::get(),702					T::CollectionCreationPrice::get(),703				),704			);705			<T as Config>::Currency::settle(706				&owner,707				imbalance,708				WithdrawReasons::TRANSFER,709				ExistenceRequirement::KeepAlive,710			)711			.map_err(|_| Error::<T>::NotSufficientFounds)?;712		}713714		<CreatedCollectionCount<T>>::put(created_count);715		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));716		<CollectionById<T>>::insert(id, collection);717		Self::set_field_raw(718			id,719			CollectionField::OffchainSchema,720			data.offchain_schema.into_inner(),721		)722		.expect("data has lower bounds than field");723		Self::set_field_raw(724			id,725			CollectionField::VariableOnChainSchema,726			data.variable_on_chain_schema.into_inner(),727		)728		.expect("data has lower bounds than field");729		Self::set_field_raw(730			id,731			CollectionField::ConstOnChainSchema,732			data.const_on_chain_schema.into_inner(),733		)734		.expect("data has lower bounds than field");735		Ok(id)736	}737738	pub fn destroy_collection(739		collection: CollectionHandle<T>,740		sender: &T::CrossAccountId,741	) -> DispatchResult {742		ensure!(743			collection.limits.owner_can_destroy(),744			<Error<T>>::NoPermission,745		);746		collection.check_is_owner(sender)?;747748		let destroyed_collections = <DestroyedCollectionCount<T>>::get()749			.0750			.checked_add(1)751			.ok_or(ArithmeticError::Overflow)?;752753		// =========754755		<DestroyedCollectionCount<T>>::put(destroyed_collections);756		<CollectionById<T>>::remove(collection.id);757		<CollectionData<T>>::remove_prefix((collection.id,), None);758		<AdminAmount<T>>::remove(collection.id);759		<IsAdmin<T>>::remove_prefix((collection.id,), None);760		<Allowlist<T>>::remove_prefix((collection.id,), None);761762		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));763		Ok(())764	}765766	pub fn set_collection_property(767		collection: &CollectionHandle<T>,768		sender: &T::CrossAccountId,769		property: Property,770	) -> DispatchResult {771		collection.check_is_owner_or_admin(sender)?;772773		CollectionProperties::<T>::try_mutate(collection.id, |properties| {774			properties.try_set_property(property.clone())775		})776		.map_err(|e| -> Error<T> { e.into() })?;777778		Self::deposit_event(Event::CollectionPropertySet(collection.id, property));779780		Ok(())781	}782783	pub fn set_collection_properties(784		collection: &CollectionHandle<T>,785		sender: &T::CrossAccountId,786		properties: Vec<Property>,787	) -> DispatchResult {788		for property in properties {789			Self::set_collection_property(collection, sender, property)?;790		}791792		Ok(())793	}794795	pub fn delete_collection_property(796		collection: &CollectionHandle<T>,797		sender: &T::CrossAccountId,798		property_key: PropertyKey,799	) -> DispatchResult {800		collection.check_is_owner_or_admin(sender)?;801802		CollectionProperties::<T>::mutate(collection.id, |properties| {803			properties.remove_property(&property_key);804		});805806		Self::deposit_event(Event::CollectionPropertyDeleted(807			collection.id,808			property_key,809		));810811		Ok(())812	}813814	pub fn delete_collection_properties(815		collection: &CollectionHandle<T>,816		sender: &T::CrossAccountId,817		property_keys: Vec<PropertyKey>,818	) -> DispatchResult {819		for key in property_keys {820			Self::delete_collection_property(collection, sender, key)?;821		}822823		Ok(())824	}825826	pub fn set_property_permission(827		collection: &CollectionHandle<T>,828		sender: &T::CrossAccountId,829		property_permission: PropertyKeyPermission,830	) -> DispatchResult {831		collection.check_is_owner_or_admin(sender)?;832833		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);834		let current_permission = all_permissions.get(&property_permission.key);835		if matches![836			current_permission,837			Some(PropertyPermission { mutable: false, .. })838		] {839			return Err(<Error<T>>::NoPermission.into());840		}841842		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {843			let property_permission = property_permission.clone();844			permissions.try_insert(property_permission.key, property_permission.permission)845		})846		.map_err(|_| -> Error<T> { PropertiesError::PropertyLimitReached.into() })?;847848		Self::deposit_event(Event::PropertyPermissionSet(849			collection.id,850			property_permission,851		));852853		Ok(())854	}855856	pub fn set_property_permissions(857		collection: &CollectionHandle<T>,858		sender: &T::CrossAccountId,859		property_permissions: Vec<PropertyKeyPermission>,860	) -> DispatchResult {861		for prop_pemission in property_permissions {862			Self::set_property_permission(collection, sender, prop_pemission)?;863		}864865		Ok(())866	}867868	pub fn bytes_keys_to_property_keys(869		keys: Vec<Vec<u8>>,870	) -> Result<Vec<PropertyKey>, DispatchError> {871		keys.into_iter()872			.map(|key| -> Result<PropertyKey, DispatchError> {873				key.try_into()874					.map_err(|_| <Error<T>>::UnableToReadUnboundedKeys.into())875			})876			.collect::<Result<Vec<PropertyKey>, DispatchError>>()877	}878879	pub fn filter_collection_properties(880		collection_id: CollectionId,881		keys: Vec<PropertyKey>,882	) -> Result<Vec<Property>, DispatchError> {883		let properties = Self::collection_properties(collection_id);884885		let properties = keys886			.into_iter()887			.filter_map(|key| {888				properties.get_property(&key).map(|value| Property {889					key,890					value: value.clone(),891				})892			})893			.collect();894895		Ok(properties)896	}897898	pub fn filter_property_permissions(899		collection_id: CollectionId,900		keys: Vec<PropertyKey>,901	) -> Result<Vec<PropertyKeyPermission>, DispatchError> {902		let permissions = Self::property_permissions(collection_id);903904		let key_permissions = keys905			.into_iter()906			.filter_map(|key| {907				permissions908					.get(&key)909					.map(|permission| PropertyKeyPermission {910						key,911						permission: permission.clone(),912					})913			})914			.collect();915916		Ok(key_permissions)917	}918919	fn set_field_raw(920		collection_id: CollectionId,921		field: CollectionField,922		value: Vec<u8>,923	) -> DispatchResult {924		if !value.is_empty() {925			<CollectionData<T>>::insert(926				(collection_id, field),927				BoundedVec::try_from(value).map_err(|_| <Error<T>>::CollectionFieldSizeExceeded)?,928			)929		} else {930			<CollectionData<T>>::remove((collection_id, field));931		}932		Ok(())933	}934935	pub fn set_field(936		collection: &CollectionHandle<T>,937		sender: &T::CrossAccountId,938		field: CollectionField,939		value: Vec<u8>,940	) -> DispatchResult {941		collection.check_is_owner_or_admin(sender)?;942943		// =========944945		Self::set_field_raw(collection.id, field, value)946	}947948	pub fn toggle_allowlist(949		collection: &CollectionHandle<T>,950		sender: &T::CrossAccountId,951		user: &T::CrossAccountId,952		allowed: bool,953	) -> DispatchResult {954		collection.check_is_owner_or_admin(sender)?;955956		// =========957958		if allowed {959			<Allowlist<T>>::insert((collection.id, user), true);960		} else {961			<Allowlist<T>>::remove((collection.id, user));962		}963964		Ok(())965	}966967	pub fn toggle_admin(968		collection: &CollectionHandle<T>,969		sender: &T::CrossAccountId,970		user: &T::CrossAccountId,971		admin: bool,972	) -> DispatchResult {973		collection.check_is_owner_or_admin(sender)?;974975		let was_admin = <IsAdmin<T>>::get((collection.id, user));976		if was_admin == admin {977			return Ok(());978		}979		let amount = <AdminAmount<T>>::get(collection.id);980981		if admin {982			let amount = amount983				.checked_add(1)984				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;985			ensure!(986				amount <= Self::collection_admins_limit(),987				<Error<T>>::CollectionAdminCountExceeded,988			);989990			// =========991992			<AdminAmount<T>>::insert(collection.id, amount);993			<IsAdmin<T>>::insert((collection.id, user), true);994		} else {995			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));996			<IsAdmin<T>>::remove((collection.id, user));997		}998999		Ok(())1000	}10011002	pub fn clamp_limits(1003		mode: CollectionMode,1004		old_limit: &CollectionLimits,1005		mut new_limit: CollectionLimits,1006	) -> Result<CollectionLimits, DispatchError> {1007		macro_rules! limit_default {1008				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{1009					$(1010						if let Some($new) = $new.$field {1011							let $old = $old.$field($($arg)?);1012							let _ = $new;1013							let _ = $old;1014							$check1015						} else {1016							$new.$field = $old.$field1017						}1018					)*1019				}};1020			}10211022		limit_default!(old_limit, new_limit,1023			account_token_ownership_limit => ensure!(1024				new_limit <= MAX_TOKEN_OWNERSHIP,1025				<Error<T>>::CollectionLimitBoundsExceeded,1026			),1027			sponsor_transfer_timeout(match mode {1028				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,1029				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1030				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,1031			}) => ensure!(1032				new_limit <= MAX_SPONSOR_TIMEOUT,1033				<Error<T>>::CollectionLimitBoundsExceeded,1034			),1035			sponsored_data_size => ensure!(1036				new_limit <= CUSTOM_DATA_LIMIT,1037				<Error<T>>::CollectionLimitBoundsExceeded,1038			),1039			token_limit => ensure!(1040				old_limit >= new_limit && new_limit > 0,1041				<Error<T>>::CollectionTokenLimitExceeded1042			),1043			owner_can_transfer => ensure!(1044				old_limit || !new_limit,1045				<Error<T>>::OwnerPermissionsCantBeReverted,1046			),1047			owner_can_destroy => ensure!(1048				old_limit || !new_limit,1049				<Error<T>>::OwnerPermissionsCantBeReverted,1050			),1051			sponsored_data_rate_limit => {},1052			transfers_enabled => {},1053		);1054		Ok(new_limit)1055	}1056}10571058#[macro_export]1059macro_rules! unsupported {1060	() => {1061		Err(<Error<T>>::UnsupportedOperation.into())1062	};1063}10641065/// Worst cases1066pub trait CommonWeightInfo<CrossAccountId> {1067	fn create_item() -> Weight;1068	fn create_multiple_items(amount: u32) -> Weight;1069	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;1070	fn burn_item() -> Weight;1071	fn set_collection_properties(amount: u32) -> Weight;1072	fn delete_collection_properties(amount: u32) -> Weight;1073	fn set_token_properties(amount: u32) -> Weight;1074	fn delete_token_properties(amount: u32) -> Weight;1075	fn set_property_permissions(amount: u32) -> Weight;1076	fn transfer() -> Weight;1077	fn approve() -> Weight;1078	fn transfer_from() -> Weight;1079	fn burn_from() -> Weight;1080	fn set_variable_metadata(bytes: u32) -> Weight;1081}10821083pub trait CommonCollectionOperations<T: Config> {1084	fn create_item(1085		&self,1086		sender: T::CrossAccountId,1087		to: T::CrossAccountId,1088		data: CreateItemData,1089		nesting_budget: &dyn Budget,1090	) -> DispatchResultWithPostInfo;1091	fn create_multiple_items(1092		&self,1093		sender: T::CrossAccountId,1094		to: T::CrossAccountId,1095		data: Vec<CreateItemData>,1096		nesting_budget: &dyn Budget,1097	) -> DispatchResultWithPostInfo;1098	fn create_multiple_items_ex(1099		&self,1100		sender: T::CrossAccountId,1101		data: CreateItemExData<T::CrossAccountId>,1102		nesting_budget: &dyn Budget,1103	) -> DispatchResultWithPostInfo;1104	fn burn_item(1105		&self,1106		sender: T::CrossAccountId,1107		token: TokenId,1108		amount: u128,1109	) -> DispatchResultWithPostInfo;1110	fn set_collection_properties(1111		&self,1112		sender: T::CrossAccountId,1113		properties: Vec<Property>,1114	) -> DispatchResultWithPostInfo;1115	fn delete_collection_properties(1116		&self,1117		sender: &T::CrossAccountId,1118		property_keys: Vec<PropertyKey>,1119	) -> DispatchResultWithPostInfo;1120	fn set_token_properties(1121		&self,1122		sender: T::CrossAccountId,1123		token_id: TokenId,1124		property: Vec<Property>,1125	) -> DispatchResultWithPostInfo;1126	fn delete_token_properties(1127		&self,1128		sender: T::CrossAccountId,1129		token_id: TokenId,1130		property_keys: Vec<PropertyKey>,1131	) -> DispatchResultWithPostInfo;1132	fn set_property_permissions(1133		&self,1134		sender: &T::CrossAccountId,1135		property_permissions: Vec<PropertyKeyPermission>,1136	) -> DispatchResultWithPostInfo;1137	fn transfer(1138		&self,1139		sender: T::CrossAccountId,1140		to: T::CrossAccountId,1141		token: TokenId,1142		amount: u128,1143		nesting_budget: &dyn Budget,1144	) -> DispatchResultWithPostInfo;1145	fn approve(1146		&self,1147		sender: T::CrossAccountId,1148		spender: T::CrossAccountId,1149		token: TokenId,1150		amount: u128,1151	) -> DispatchResultWithPostInfo;1152	fn transfer_from(1153		&self,1154		sender: T::CrossAccountId,1155		from: T::CrossAccountId,1156		to: T::CrossAccountId,1157		token: TokenId,1158		amount: u128,1159		nesting_budget: &dyn Budget,1160	) -> DispatchResultWithPostInfo;1161	fn burn_from(1162		&self,1163		sender: T::CrossAccountId,1164		from: T::CrossAccountId,1165		token: TokenId,1166		amount: u128,1167		nesting_budget: &dyn Budget,1168	) -> DispatchResultWithPostInfo;11691170	fn set_variable_metadata(1171		&self,1172		sender: T::CrossAccountId,1173		token: TokenId,1174		data: BoundedVec<u8, CustomDataLimit>,1175	) -> DispatchResultWithPostInfo;11761177	fn check_nesting(1178		&self,1179		sender: T::CrossAccountId,1180		from: (CollectionId, TokenId),1181		under: TokenId,1182		budget: &dyn Budget,1183	) -> DispatchResult;11841185	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;1186	fn collection_tokens(&self) -> Vec<TokenId>;1187	fn token_exists(&self, token: TokenId) -> bool;1188	fn last_token_id(&self) -> TokenId;11891190	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;1191	fn const_metadata(&self, token: TokenId) -> Vec<u8>;1192	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;1193	fn token_properties(&self, token_id: TokenId, keys: Vec<PropertyKey>) -> Vec<Property>;1194	/// Amount of unique collection tokens1195	fn total_supply(&self) -> u32;1196	/// Amount of different tokens account has (Applicable to nonfungible/refungible)1197	fn account_balance(&self, account: T::CrossAccountId) -> u32;1198	/// Amount of specific token account have (Applicable to fungible/refungible)1199	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;1200	fn allowance(1201		&self,1202		sender: T::CrossAccountId,1203		spender: T::CrossAccountId,1204		token: TokenId,1205	) -> u128;1206}12071208// Flexible enough for implementing CommonCollectionOperations1209pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {1210	let post_info = PostDispatchInfo {1211		actual_weight: Some(weight),1212		pays_fee: Pays::Yes,1213	};1214	match res {1215		Ok(()) => Ok(post_info),1216		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),1217	}1218}12191220impl<T: Config> From<PropertiesError> for Error<T> {1221	fn from(error: PropertiesError) -> Self {1222		match error {1223			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,1224			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,1225		}1226	}1227}