git.delta.rocks / unique-network / refs/commits / a7c09a369ee4

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,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		NoSpaceForProperty,370371		PropertyLimitReached,372	}373374	#[pallet::storage]375	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;376	#[pallet::storage]377	pub type DestroyedCollectionCount<T> =378		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;379380	/// Collection info381	#[pallet::storage]382	pub type CollectionById<T> = StorageMap<383		Hasher = Blake2_128Concat,384		Key = CollectionId,385		Value = Collection<<T as frame_system::Config>::AccountId>,386		QueryKind = OptionQuery,387	>;388389	/// Collection properties390	#[pallet::storage]391	pub type CollectionProperties<T> = StorageMap<392		Hasher = Blake2_128Concat,393		Key = CollectionId,394		Value = Properties,395		QueryKind = ValueQuery,396		OnEmpty = up_data_structs::CollectionProperties,397	>;398399	#[pallet::storage]400	#[pallet::getter(fn property_permission)]401	pub type CollectionPropertyPermissions<T> = StorageMap<402		Hasher = Blake2_128Concat,403		Key = CollectionId,404		Value = PropertiesPermissionMap,405		QueryKind = ValueQuery,406	>;407408	/// Large variable-size collection fields are extracted here409	#[pallet::storage]410	pub type CollectionData<T> = StorageNMap<411		Key = (412			Key<Twox64Concat, CollectionId>,413			Key<Twox64Concat, CollectionField>,414		),415		Value = BoundedVec<u8, ConstU32<COLLECTION_FIELD_LIMIT>>,416		QueryKind = ValueQuery,417	>;418419	#[pallet::storage]420	pub type AdminAmount<T> = StorageMap<421		Hasher = Blake2_128Concat,422		Key = CollectionId,423		Value = u32,424		QueryKind = ValueQuery,425	>;426427	/// List of collection admins428	#[pallet::storage]429	pub type IsAdmin<T: Config> = StorageNMap<430		Key = (431			Key<Blake2_128Concat, CollectionId>,432			Key<Blake2_128Concat, T::CrossAccountId>,433		),434		Value = bool,435		QueryKind = ValueQuery,436	>;437438	/// Allowlisted collection users439	#[pallet::storage]440	pub type Allowlist<T: Config> = StorageNMap<441		Key = (442			Key<Blake2_128Concat, CollectionId>,443			Key<Blake2_128Concat, T::CrossAccountId>,444		),445		Value = bool,446		QueryKind = ValueQuery,447	>;448449	/// Not used by code, exists only to provide some types to metadata450	#[pallet::storage]451	pub type DummyStorageValue<T: Config> = StorageValue<452		Value = (453			CollectionStats,454			CollectionId,455			TokenId,456			PhantomType<RpcCollection<T::AccountId>>,457		),458		QueryKind = OptionQuery,459	>;460461	#[pallet::hooks]462	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {463		fn on_runtime_upgrade() -> Weight {464			if StorageVersion::get::<Pallet<T>>() < StorageVersion::new(1) {465				use up_data_structs::{CollectionVersion1, CollectionVersion2};466				<CollectionById<T>>::translate::<CollectionVersion1<T::AccountId>, _>(|id, v| {467					Self::set_field_raw(468						id,469						CollectionField::OffchainSchema,470						v.offchain_schema.clone().into_inner(),471					)472					.expect("data has lower bounds than field");473					Self::set_field_raw(474						id,475						CollectionField::VariableOnChainSchema,476						v.variable_on_chain_schema.clone().into_inner(),477					)478					.expect("data has lower bounds than field");479					Self::set_field_raw(480						id,481						CollectionField::ConstOnChainSchema,482						v.const_on_chain_schema.clone().into_inner(),483					)484					.expect("data has lower bounds than field");485486					Some(CollectionVersion2::from(v))487				});488			}489490			0491		}492	}493}494495impl<T: Config> Pallet<T> {496	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens497	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {498		ensure!(499			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,500			<Error<T>>::AddressIsZero501		);502		Ok(())503	}504	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {505		<IsAdmin<T>>::iter_prefix((collection,))506			.map(|(a, _)| a)507			.collect()508	}509	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {510		<Allowlist<T>>::iter_prefix((collection,))511			.map(|(a, _)| a)512			.collect()513	}514	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {515		<Allowlist<T>>::get((collection, user))516	}517	pub fn collection_stats() -> CollectionStats {518		let created = <CreatedCollectionCount<T>>::get();519		let destroyed = <DestroyedCollectionCount<T>>::get();520		CollectionStats {521			created: created.0,522			destroyed: destroyed.0,523			alive: created.0 - destroyed.0,524		}525	}526527	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {528		let collection = <CollectionById<T>>::get(collection);529		if collection.is_none() {530			return None;531		}532533		let collection = collection.unwrap();534		let limits = collection.limits;535		let effective_limits = CollectionLimits {536			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),537			sponsored_data_size: Some(limits.sponsored_data_size()),538			sponsored_data_rate_limit: Some(539				limits540					.sponsored_data_rate_limit541					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),542			),543			token_limit: Some(limits.token_limit()),544			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(545				match collection.mode {546					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,547					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,548					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,549				},550			)),551			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),552			owner_can_transfer: Some(limits.owner_can_transfer()),553			owner_can_destroy: Some(limits.owner_can_destroy()),554			transfers_enabled: Some(limits.transfers_enabled()),555			nesting_rule: Some(limits.nesting_rule().clone()),556		};557558		Some(effective_limits)559	}560561	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {562		let Collection {563			name,564			description,565			owner,566			mode,567			access,568			token_prefix,569			mint_mode,570			schema_version,571			sponsorship,572			limits,573			meta_update_permission,574			..575		} = <CollectionById<T>>::get(collection)?;576		Some(RpcCollection {577			name: name.into_inner(),578			description: description.into_inner(),579			owner,580			mode,581			access,582			token_prefix: token_prefix.into_inner(),583			mint_mode,584			schema_version,585			sponsorship,586			limits,587			meta_update_permission,588			offchain_schema: <CollectionData<T>>::get((589				collection,590				CollectionField::OffchainSchema,591			))592			.into_inner(),593			const_on_chain_schema: <CollectionData<T>>::get((594				collection,595				CollectionField::ConstOnChainSchema,596			))597			.into_inner(),598			variable_on_chain_schema: <CollectionData<T>>::get((599				collection,600				CollectionField::VariableOnChainSchema,601			))602			.into_inner(),603		})604	}605}606607impl<T: Config> Pallet<T> {608	pub fn init_collection(609		owner: T::AccountId,610		data: CreateCollectionData<T::AccountId>,611	) -> Result<CollectionId, DispatchError> {612		{613			ensure!(614				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,615				Error::<T>::CollectionTokenPrefixLimitExceeded616			);617		}618619		let created_count = <CreatedCollectionCount<T>>::get()620			.0621			.checked_add(1)622			.ok_or(ArithmeticError::Overflow)?;623		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;624		let id = CollectionId(created_count);625626		// bound Total number of collections627		ensure!(628			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,629			<Error<T>>::TotalCollectionsLimitExceeded630		);631632		// =========633634		let collection = Collection {635			owner: owner.clone(),636			name: data.name,637			mode: data.mode.clone(),638			mint_mode: false,639			access: data.access.unwrap_or_default(),640			description: data.description,641			token_prefix: data.token_prefix,642			schema_version: data.schema_version.unwrap_or_default(),643			sponsorship: data644				.pending_sponsor645				.map(SponsorshipState::Unconfirmed)646				.unwrap_or_default(),647			limits: data648				.limits649				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))650				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,651			meta_update_permission: data.meta_update_permission.unwrap_or_default(),652			// token_property_permissions: data.token_property_permissions.unwrap_or_default(),653			// properties: Properties::from_collection_props_vec(data.properties)?654		};655656		CollectionProperties::<T>::insert(657			id,658			Properties::from_collection_props_vec(data.properties)659				.map_err(|e| -> Error::<T> {660					e.into()661				})?,662		);663664		let token_props_permissions: PropertiesPermissionMap = data665			.token_property_permissions666			.into_iter()667			.map(|property| (property.key, property.permission))668			.collect::<BTreeMap<_, _>>()669			.try_into()670			.map_err(|_| -> Error::<T> {671				PropertiesError::PropertyLimitReached.into()672			})?;673674		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);675676		// Take a (non-refundable) deposit of collection creation677		{678			let mut imbalance =679				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();680			imbalance.subsume(681				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(682					&T::TreasuryAccountId::get(),683					T::CollectionCreationPrice::get(),684				),685			);686			<T as Config>::Currency::settle(687				&owner,688				imbalance,689				WithdrawReasons::TRANSFER,690				ExistenceRequirement::KeepAlive,691			)692			.map_err(|_| Error::<T>::NotSufficientFounds)?;693		}694695		<CreatedCollectionCount<T>>::put(created_count);696		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));697		<CollectionById<T>>::insert(id, collection);698		Self::set_field_raw(699			id,700			CollectionField::OffchainSchema,701			data.offchain_schema.into_inner(),702		)703		.expect("data has lower bounds than field");704		Self::set_field_raw(705			id,706			CollectionField::VariableOnChainSchema,707			data.variable_on_chain_schema.into_inner(),708		)709		.expect("data has lower bounds than field");710		Self::set_field_raw(711			id,712			CollectionField::ConstOnChainSchema,713			data.const_on_chain_schema.into_inner(),714		)715		.expect("data has lower bounds than field");716		Ok(id)717	}718719	pub fn destroy_collection(720		collection: CollectionHandle<T>,721		sender: &T::CrossAccountId,722	) -> DispatchResult {723		ensure!(724			collection.limits.owner_can_destroy(),725			<Error<T>>::NoPermission,726		);727		collection.check_is_owner(sender)?;728729		let destroyed_collections = <DestroyedCollectionCount<T>>::get()730			.0731			.checked_add(1)732			.ok_or(ArithmeticError::Overflow)?;733734		// =========735736		<DestroyedCollectionCount<T>>::put(destroyed_collections);737		<CollectionById<T>>::remove(collection.id);738		<CollectionData<T>>::remove_prefix((collection.id,), None);739		<AdminAmount<T>>::remove(collection.id);740		<IsAdmin<T>>::remove_prefix((collection.id,), None);741		<Allowlist<T>>::remove_prefix((collection.id,), None);742743		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));744		Ok(())745	}746747	pub fn set_collection_property(748		collection: &CollectionHandle<T>,749		sender: &T::CrossAccountId,750		property: Property,751	) -> DispatchResult {752		collection.check_is_owner_or_admin(sender)?;753754		CollectionProperties::<T>::try_mutate(collection.id, |properties| {755			properties.try_set_property(property.clone())756		})757		.map_err(|e| -> Error::<T> {758			e.into()759		})?;760761		Self::deposit_event(Event::CollectionPropertySet(collection.id, property));762763		Ok(())764	}765766	pub fn set_collection_properties(767		collection: &CollectionHandle<T>,768		sender: &T::CrossAccountId,769		properties: Vec<Property>,770	) -> DispatchResult {771		for property in properties {772			Self::set_collection_property(collection, sender, property)?;773		}774775		Ok(())776	}777778	pub fn delete_collection_property(779		collection: &CollectionHandle<T>,780		sender: &T::CrossAccountId,781		property_key: PropertyKey,782	) -> DispatchResult {783		collection.check_is_owner_or_admin(sender)?;784785		CollectionProperties::<T>::mutate(collection.id, |properties| {786			properties.remove_property(&property_key);787		});788789		Self::deposit_event(Event::CollectionPropertyDeleted(collection.id, property_key));790791		Ok(())792	}793794	pub fn delete_collection_properties(795		collection: &CollectionHandle<T>,796		sender: &T::CrossAccountId,797		property_keys: Vec<PropertyKey>,798	) -> DispatchResult {799		for key in property_keys {800			Self::delete_collection_property(collection, sender, key)?;801		}802803		Ok(())804	}805806	pub fn set_property_permission(807		collection: &CollectionHandle<T>,808		sender: &T::CrossAccountId,809		property_permission: PropertyKeyPermission,810	) -> DispatchResult {811		collection.check_is_owner_or_admin(sender)?;812813		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);814		let current_permission = all_permissions.get(&property_permission.key);815		if matches![816			current_permission,817			Some(PropertyPermission::AdminConst | PropertyPermission::ItemOwnerConst)818		] {819			return Err(<Error<T>>::NoPermission.into());820		}821822		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {823			let property_permission = property_permission.clone();824			permissions.try_insert(property_permission.key, property_permission.permission)825		})826		.map_err(|_| -> Error::<T> {827			PropertiesError::PropertyLimitReached.into()828		})?;829830		Self::deposit_event(Event::PropertyPermissionSet(831			collection.id,832			property_permission,833		));834835		Ok(())836	}837838	pub fn set_property_permissions(839		collection: &CollectionHandle<T>,840		sender: &T::CrossAccountId,841		property_permissions: Vec<PropertyKeyPermission>,842	) -> DispatchResult {843		for prop_pemission in property_permissions {844			Self::set_property_permission(collection, sender, prop_pemission)?;845		}846847		Ok(())848	}849850	fn set_field_raw(851		collection_id: CollectionId,852		field: CollectionField,853		value: Vec<u8>,854	) -> DispatchResult {855		if !value.is_empty() {856			<CollectionData<T>>::insert(857				(collection_id, field),858				BoundedVec::try_from(value).map_err(|_| <Error<T>>::CollectionFieldSizeExceeded)?,859			)860		} else {861			<CollectionData<T>>::remove((collection_id, field));862		}863		Ok(())864	}865866	pub fn set_field(867		collection: &CollectionHandle<T>,868		sender: &T::CrossAccountId,869		field: CollectionField,870		value: Vec<u8>,871	) -> DispatchResult {872		collection.check_is_owner_or_admin(sender)?;873874		// =========875876		Self::set_field_raw(collection.id, field, value)877	}878879	pub fn toggle_allowlist(880		collection: &CollectionHandle<T>,881		sender: &T::CrossAccountId,882		user: &T::CrossAccountId,883		allowed: bool,884	) -> DispatchResult {885		collection.check_is_owner_or_admin(sender)?;886887		// =========888889		if allowed {890			<Allowlist<T>>::insert((collection.id, user), true);891		} else {892			<Allowlist<T>>::remove((collection.id, user));893		}894895		Ok(())896	}897898	pub fn toggle_admin(899		collection: &CollectionHandle<T>,900		sender: &T::CrossAccountId,901		user: &T::CrossAccountId,902		admin: bool,903	) -> DispatchResult {904		collection.check_is_owner_or_admin(sender)?;905906		let was_admin = <IsAdmin<T>>::get((collection.id, user));907		if was_admin == admin {908			return Ok(());909		}910		let amount = <AdminAmount<T>>::get(collection.id);911912		if admin {913			let amount = amount914				.checked_add(1)915				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;916			ensure!(917				amount <= Self::collection_admins_limit(),918				<Error<T>>::CollectionAdminCountExceeded,919			);920921			// =========922923			<AdminAmount<T>>::insert(collection.id, amount);924			<IsAdmin<T>>::insert((collection.id, user), true);925		} else {926			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));927			<IsAdmin<T>>::remove((collection.id, user));928		}929930		Ok(())931	}932933	pub fn clamp_limits(934		mode: CollectionMode,935		old_limit: &CollectionLimits,936		mut new_limit: CollectionLimits,937	) -> Result<CollectionLimits, DispatchError> {938		macro_rules! limit_default {939				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{940					$(941						if let Some($new) = $new.$field {942							let $old = $old.$field($($arg)?);943							let _ = $new;944							let _ = $old;945							$check946						} else {947							$new.$field = $old.$field948						}949					)*950				}};951			}952953		limit_default!(old_limit, new_limit,954			account_token_ownership_limit => ensure!(955				new_limit <= MAX_TOKEN_OWNERSHIP,956				<Error<T>>::CollectionLimitBoundsExceeded,957			),958			sponsor_transfer_timeout(match mode {959				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,960				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,961				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,962			}) => ensure!(963				new_limit <= MAX_SPONSOR_TIMEOUT,964				<Error<T>>::CollectionLimitBoundsExceeded,965			),966			sponsored_data_size => ensure!(967				new_limit <= CUSTOM_DATA_LIMIT,968				<Error<T>>::CollectionLimitBoundsExceeded,969			),970			token_limit => ensure!(971				old_limit >= new_limit && new_limit > 0,972				<Error<T>>::CollectionTokenLimitExceeded973			),974			owner_can_transfer => ensure!(975				old_limit || !new_limit,976				<Error<T>>::OwnerPermissionsCantBeReverted,977			),978			owner_can_destroy => ensure!(979				old_limit || !new_limit,980				<Error<T>>::OwnerPermissionsCantBeReverted,981			),982			sponsored_data_rate_limit => {},983			transfers_enabled => {},984		);985		Ok(new_limit)986	}987}988989#[macro_export]990macro_rules! unsupported {991	() => {992		Err(<Error<T>>::UnsupportedOperation.into())993	};994}995996/// Worst cases997pub trait CommonWeightInfo<CrossAccountId> {998	fn create_item() -> Weight;999	fn create_multiple_items(amount: u32) -> Weight;1000	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;1001	fn burn_item() -> Weight;1002	fn set_collection_properties(amount: u32) -> Weight;1003	fn delete_collection_properties(amount: u32) -> Weight;1004	fn set_token_properties(amount: u32) -> Weight;1005	fn delete_token_properties(amount: u32) -> Weight;1006	fn set_property_permissions(amount: u32) -> Weight;1007	fn transfer() -> Weight;1008	fn approve() -> Weight;1009	fn transfer_from() -> Weight;1010	fn burn_from() -> Weight;1011	fn set_variable_metadata(bytes: u32) -> Weight;1012}10131014pub trait CommonCollectionOperations<T: Config> {1015	fn create_item(1016		&self,1017		sender: T::CrossAccountId,1018		to: T::CrossAccountId,1019		data: CreateItemData,1020		nesting_budget: &dyn Budget,1021	) -> DispatchResultWithPostInfo;1022	fn create_multiple_items(1023		&self,1024		sender: T::CrossAccountId,1025		to: T::CrossAccountId,1026		data: Vec<CreateItemData>,1027		nesting_budget: &dyn Budget,1028	) -> DispatchResultWithPostInfo;1029	fn create_multiple_items_ex(1030		&self,1031		sender: T::CrossAccountId,1032		data: CreateItemExData<T::CrossAccountId>,1033		nesting_budget: &dyn Budget,1034	) -> DispatchResultWithPostInfo;1035	fn burn_item(1036		&self,1037		sender: T::CrossAccountId,1038		token: TokenId,1039		amount: u128,1040	) -> DispatchResultWithPostInfo;1041	fn set_collection_properties(1042		&self,1043		sender: T::CrossAccountId,1044		properties: Vec<Property>,1045	) -> DispatchResultWithPostInfo;1046	fn delete_collection_properties(1047		&self,1048		sender: &T::CrossAccountId,1049		property_keys: Vec<PropertyKey>,1050	) -> DispatchResultWithPostInfo;1051	fn set_token_properties(1052		&self,1053		sender: T::CrossAccountId,1054		token_id: TokenId,1055		property: Vec<Property>,1056	) -> DispatchResultWithPostInfo;1057	fn delete_token_properties(1058		&self,1059		sender: T::CrossAccountId,1060		token_id: TokenId,1061		property_keys: Vec<PropertyKey>,1062	) -> DispatchResultWithPostInfo;1063	fn set_property_permissions(1064		&self,1065		sender: &T::CrossAccountId,1066		property_permissions: Vec<PropertyKeyPermission>,1067	) -> DispatchResultWithPostInfo;1068	fn transfer(1069		&self,1070		sender: T::CrossAccountId,1071		to: T::CrossAccountId,1072		token: TokenId,1073		amount: u128,1074		nesting_budget: &dyn Budget,1075	) -> DispatchResultWithPostInfo;1076	fn approve(1077		&self,1078		sender: T::CrossAccountId,1079		spender: T::CrossAccountId,1080		token: TokenId,1081		amount: u128,1082	) -> DispatchResultWithPostInfo;1083	fn transfer_from(1084		&self,1085		sender: T::CrossAccountId,1086		from: T::CrossAccountId,1087		to: T::CrossAccountId,1088		token: TokenId,1089		amount: u128,1090		nesting_budget: &dyn Budget,1091	) -> DispatchResultWithPostInfo;1092	fn burn_from(1093		&self,1094		sender: T::CrossAccountId,1095		from: T::CrossAccountId,1096		token: TokenId,1097		amount: u128,1098		nesting_budget: &dyn Budget,1099	) -> DispatchResultWithPostInfo;11001101	fn set_variable_metadata(1102		&self,1103		sender: T::CrossAccountId,1104		token: TokenId,1105		data: BoundedVec<u8, CustomDataLimit>,1106	) -> DispatchResultWithPostInfo;11071108	fn check_nesting(1109		&self,1110		sender: T::CrossAccountId,1111		from: (CollectionId, TokenId),1112		under: TokenId,1113		budget: &dyn Budget,1114	) -> DispatchResult;11151116	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;1117	fn collection_tokens(&self) -> Vec<TokenId>;1118	fn token_exists(&self, token: TokenId) -> bool;1119	fn last_token_id(&self) -> TokenId;11201121	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;1122	fn const_metadata(&self, token: TokenId) -> Vec<u8>;1123	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;11241125	/// Amount of unique collection tokens1126	fn total_supply(&self) -> u32;1127	/// Amount of different tokens account has (Applicable to nonfungible/refungible)1128	fn account_balance(&self, account: T::CrossAccountId) -> u32;1129	/// Amount of specific token account have (Applicable to fungible/refungible)1130	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;1131	fn allowance(1132		&self,1133		sender: T::CrossAccountId,1134		spender: T::CrossAccountId,1135		token: TokenId,1136	) -> u128;1137}11381139// Flexible enough for implementing CommonCollectionOperations1140pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {1141	let post_info = PostDispatchInfo {1142		actual_weight: Some(weight),1143		pays_fee: Pays::Yes,1144	};1145	match res {1146		Ok(()) => Ok(post_info),1147		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),1148	}1149}11501151impl<T: Config> From<PropertiesError> for Error<T> {1152	fn from(error: PropertiesError) -> Self {1153		match error {1154			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,1155			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,1156		}1157	}1158}