git.delta.rocks / unique-network / refs/commits / a66e7a4819dc

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	#[pallet::getter(fn collection_properties)]392	pub type CollectionProperties<T> = StorageMap<393		Hasher = Blake2_128Concat,394		Key = CollectionId,395		Value = Properties,396		QueryKind = ValueQuery,397		OnEmpty = up_data_structs::CollectionProperties,398	>;399400	#[pallet::storage]401	#[pallet::getter(fn property_permissions)]402	pub type CollectionPropertyPermissions<T> = StorageMap<403		Hasher = Blake2_128Concat,404		Key = CollectionId,405		Value = PropertiesPermissionMap,406		QueryKind = ValueQuery,407	>;408409	/// Large variable-size collection fields are extracted here410	#[pallet::storage]411	pub type CollectionData<T> = StorageNMap<412		Key = (413			Key<Twox64Concat, CollectionId>,414			Key<Twox64Concat, CollectionField>,415		),416		Value = BoundedVec<u8, ConstU32<COLLECTION_FIELD_LIMIT>>,417		QueryKind = ValueQuery,418	>;419420	#[pallet::storage]421	pub type AdminAmount<T> = StorageMap<422		Hasher = Blake2_128Concat,423		Key = CollectionId,424		Value = u32,425		QueryKind = ValueQuery,426	>;427428	/// List of collection admins429	#[pallet::storage]430	pub type IsAdmin<T: Config> = StorageNMap<431		Key = (432			Key<Blake2_128Concat, CollectionId>,433			Key<Blake2_128Concat, T::CrossAccountId>,434		),435		Value = bool,436		QueryKind = ValueQuery,437	>;438439	/// Allowlisted collection users440	#[pallet::storage]441	pub type Allowlist<T: Config> = StorageNMap<442		Key = (443			Key<Blake2_128Concat, CollectionId>,444			Key<Blake2_128Concat, T::CrossAccountId>,445		),446		Value = bool,447		QueryKind = ValueQuery,448	>;449450	/// Not used by code, exists only to provide some types to metadata451	#[pallet::storage]452	pub type DummyStorageValue<T: Config> = StorageValue<453		Value = (454			CollectionStats,455			CollectionId,456			TokenId,457			PhantomType<RpcCollection<T::AccountId>>,458		),459		QueryKind = OptionQuery,460	>;461462	#[pallet::hooks]463	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {464		fn on_runtime_upgrade() -> Weight {465			if StorageVersion::get::<Pallet<T>>() < StorageVersion::new(1) {466				use up_data_structs::{CollectionVersion1, CollectionVersion2};467				<CollectionById<T>>::translate::<CollectionVersion1<T::AccountId>, _>(|id, v| {468					Self::set_field_raw(469						id,470						CollectionField::OffchainSchema,471						v.offchain_schema.clone().into_inner(),472					)473					.expect("data has lower bounds than field");474					Self::set_field_raw(475						id,476						CollectionField::VariableOnChainSchema,477						v.variable_on_chain_schema.clone().into_inner(),478					)479					.expect("data has lower bounds than field");480					Self::set_field_raw(481						id,482						CollectionField::ConstOnChainSchema,483						v.const_on_chain_schema.clone().into_inner(),484					)485					.expect("data has lower bounds than field");486487					Some(CollectionVersion2::from(v))488				});489			}490491			0492		}493	}494}495496impl<T: Config> Pallet<T> {497	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens498	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {499		ensure!(500			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,501			<Error<T>>::AddressIsZero502		);503		Ok(())504	}505	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {506		<IsAdmin<T>>::iter_prefix((collection,))507			.map(|(a, _)| a)508			.collect()509	}510	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {511		<Allowlist<T>>::iter_prefix((collection,))512			.map(|(a, _)| a)513			.collect()514	}515	pub fn allowed(collection: CollectionId, user: T::CrossAccountId) -> bool {516		<Allowlist<T>>::get((collection, user))517	}518	pub fn collection_stats() -> CollectionStats {519		let created = <CreatedCollectionCount<T>>::get();520		let destroyed = <DestroyedCollectionCount<T>>::get();521		CollectionStats {522			created: created.0,523			destroyed: destroyed.0,524			alive: created.0 - destroyed.0,525		}526	}527528	pub fn effective_collection_limits(collection: CollectionId) -> Option<CollectionLimits> {529		let collection = <CollectionById<T>>::get(collection);530		if collection.is_none() {531			return None;532		}533534		let collection = collection.unwrap();535		let limits = collection.limits;536		let effective_limits = CollectionLimits {537			account_token_ownership_limit: Some(limits.account_token_ownership_limit()),538			sponsored_data_size: Some(limits.sponsored_data_size()),539			sponsored_data_rate_limit: Some(540				limits541					.sponsored_data_rate_limit542					.unwrap_or(SponsoringRateLimit::SponsoringDisabled),543			),544			token_limit: Some(limits.token_limit()),545			sponsor_transfer_timeout: Some(limits.sponsor_transfer_timeout(546				match collection.mode {547					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,548					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,549					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,550				},551			)),552			sponsor_approve_timeout: Some(limits.sponsor_approve_timeout()),553			owner_can_transfer: Some(limits.owner_can_transfer()),554			owner_can_destroy: Some(limits.owner_can_destroy()),555			transfers_enabled: Some(limits.transfers_enabled()),556			nesting_rule: Some(limits.nesting_rule().clone()),557		};558559		Some(effective_limits)560	}561562	pub fn rpc_collection(collection: CollectionId) -> Option<RpcCollection<T::AccountId>> {563		let Collection {564			name,565			description,566			owner,567			mode,568			access,569			token_prefix,570			mint_mode,571			schema_version,572			sponsorship,573			limits,574			meta_update_permission,575			..576		} = <CollectionById<T>>::get(collection)?;577		Some(RpcCollection {578			name: name.into_inner(),579			description: description.into_inner(),580			owner,581			mode,582			access,583			token_prefix: token_prefix.into_inner(),584			mint_mode,585			schema_version,586			sponsorship,587			limits,588			meta_update_permission,589			offchain_schema: <CollectionData<T>>::get((590				collection,591				CollectionField::OffchainSchema,592			))593			.into_inner(),594			const_on_chain_schema: <CollectionData<T>>::get((595				collection,596				CollectionField::ConstOnChainSchema,597			))598			.into_inner(),599			variable_on_chain_schema: <CollectionData<T>>::get((600				collection,601				CollectionField::VariableOnChainSchema,602			))603			.into_inner(),604		})605	}606}607608impl<T: Config> Pallet<T> {609	pub fn init_collection(610		owner: T::AccountId,611		data: CreateCollectionData<T::AccountId>,612	) -> Result<CollectionId, DispatchError> {613		{614			ensure!(615				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH as usize,616				Error::<T>::CollectionTokenPrefixLimitExceeded617			);618		}619620		let created_count = <CreatedCollectionCount<T>>::get()621			.0622			.checked_add(1)623			.ok_or(ArithmeticError::Overflow)?;624		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;625		let id = CollectionId(created_count);626627		// bound Total number of collections628		ensure!(629			created_count - destroyed_count <= COLLECTION_NUMBER_LIMIT,630			<Error<T>>::TotalCollectionsLimitExceeded631		);632633		// =========634635		let collection = Collection {636			owner: owner.clone(),637			name: data.name,638			mode: data.mode.clone(),639			mint_mode: false,640			access: data.access.unwrap_or_default(),641			description: data.description,642			token_prefix: data.token_prefix,643			schema_version: data.schema_version.unwrap_or_default(),644			sponsorship: data645				.pending_sponsor646				.map(SponsorshipState::Unconfirmed)647				.unwrap_or_default(),648			limits: data649				.limits650				.map(|limits| Self::clamp_limits(data.mode.clone(), &Default::default(), limits))651				.unwrap_or_else(|| Ok(CollectionLimits::default()))?,652			meta_update_permission: data.meta_update_permission.unwrap_or_default(),653			// token_property_permissions: data.token_property_permissions.unwrap_or_default(),654			// properties: Properties::from_collection_props_vec(data.properties)?655		};656657		CollectionProperties::<T>::insert(658			id,659			Properties::from_collection_props_vec(data.properties)660				.map_err(|e| -> Error<T> { e.into() })?,661		);662663		let token_props_permissions: PropertiesPermissionMap = data664			.token_property_permissions665			.into_iter()666			.map(|property| (property.key, property.permission))667			.collect::<BTreeMap<_, _>>()668			.try_into()669			.map_err(|_| -> Error<T> { PropertiesError::PropertyLimitReached.into() })?;670671		CollectionPropertyPermissions::<T>::insert(id, token_props_permissions);672673		// Take a (non-refundable) deposit of collection creation674		{675			let mut imbalance =676				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();677			imbalance.subsume(678				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(679					&T::TreasuryAccountId::get(),680					T::CollectionCreationPrice::get(),681				),682			);683			<T as Config>::Currency::settle(684				&owner,685				imbalance,686				WithdrawReasons::TRANSFER,687				ExistenceRequirement::KeepAlive,688			)689			.map_err(|_| Error::<T>::NotSufficientFounds)?;690		}691692		<CreatedCollectionCount<T>>::put(created_count);693		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));694		<CollectionById<T>>::insert(id, collection);695		Self::set_field_raw(696			id,697			CollectionField::OffchainSchema,698			data.offchain_schema.into_inner(),699		)700		.expect("data has lower bounds than field");701		Self::set_field_raw(702			id,703			CollectionField::VariableOnChainSchema,704			data.variable_on_chain_schema.into_inner(),705		)706		.expect("data has lower bounds than field");707		Self::set_field_raw(708			id,709			CollectionField::ConstOnChainSchema,710			data.const_on_chain_schema.into_inner(),711		)712		.expect("data has lower bounds than field");713		Ok(id)714	}715716	pub fn destroy_collection(717		collection: CollectionHandle<T>,718		sender: &T::CrossAccountId,719	) -> DispatchResult {720		ensure!(721			collection.limits.owner_can_destroy(),722			<Error<T>>::NoPermission,723		);724		collection.check_is_owner(sender)?;725726		let destroyed_collections = <DestroyedCollectionCount<T>>::get()727			.0728			.checked_add(1)729			.ok_or(ArithmeticError::Overflow)?;730731		// =========732733		<DestroyedCollectionCount<T>>::put(destroyed_collections);734		<CollectionById<T>>::remove(collection.id);735		<CollectionData<T>>::remove_prefix((collection.id,), None);736		<AdminAmount<T>>::remove(collection.id);737		<IsAdmin<T>>::remove_prefix((collection.id,), None);738		<Allowlist<T>>::remove_prefix((collection.id,), None);739740		<Pallet<T>>::deposit_event(Event::CollectionDestroyed(collection.id));741		Ok(())742	}743744	pub fn set_collection_property(745		collection: &CollectionHandle<T>,746		sender: &T::CrossAccountId,747		property: Property,748	) -> DispatchResult {749		collection.check_is_owner_or_admin(sender)?;750751		CollectionProperties::<T>::try_mutate(collection.id, |properties| {752			properties.try_set_property(property.clone())753		})754		.map_err(|e| -> Error<T> { e.into() })?;755756		Self::deposit_event(Event::CollectionPropertySet(collection.id, property));757758		Ok(())759	}760761	pub fn set_collection_properties(762		collection: &CollectionHandle<T>,763		sender: &T::CrossAccountId,764		properties: Vec<Property>,765	) -> DispatchResult {766		for property in properties {767			Self::set_collection_property(collection, sender, property)?;768		}769770		Ok(())771	}772773	pub fn delete_collection_property(774		collection: &CollectionHandle<T>,775		sender: &T::CrossAccountId,776		property_key: PropertyKey,777	) -> DispatchResult {778		collection.check_is_owner_or_admin(sender)?;779780		CollectionProperties::<T>::mutate(collection.id, |properties| {781			properties.remove_property(&property_key);782		});783784		Self::deposit_event(Event::CollectionPropertyDeleted(785			collection.id,786			property_key,787		));788789		Ok(())790	}791792	pub fn delete_collection_properties(793		collection: &CollectionHandle<T>,794		sender: &T::CrossAccountId,795		property_keys: Vec<PropertyKey>,796	) -> DispatchResult {797		for key in property_keys {798			Self::delete_collection_property(collection, sender, key)?;799		}800801		Ok(())802	}803804	pub fn set_property_permission(805		collection: &CollectionHandle<T>,806		sender: &T::CrossAccountId,807		property_permission: PropertyKeyPermission,808	) -> DispatchResult {809		collection.check_is_owner_or_admin(sender)?;810811		let all_permissions = CollectionPropertyPermissions::<T>::get(collection.id);812		let current_permission = all_permissions.get(&property_permission.key);813		if matches![814			current_permission,815			Some(PropertyPermission::AdminConst | PropertyPermission::ItemOwnerConst)816		] {817			return Err(<Error<T>>::NoPermission.into());818		}819820		CollectionPropertyPermissions::<T>::try_mutate(collection.id, |permissions| {821			let property_permission = property_permission.clone();822			permissions.try_insert(property_permission.key, property_permission.permission)823		})824		.map_err(|_| -> Error<T> { PropertiesError::PropertyLimitReached.into() })?;825826		Self::deposit_event(Event::PropertyPermissionSet(827			collection.id,828			property_permission,829		));830831		Ok(())832	}833834	pub fn set_property_permissions(835		collection: &CollectionHandle<T>,836		sender: &T::CrossAccountId,837		property_permissions: Vec<PropertyKeyPermission>,838	) -> DispatchResult {839		for prop_pemission in property_permissions {840			Self::set_property_permission(collection, sender, prop_pemission)?;841		}842843		Ok(())844	}845846	fn set_field_raw(847		collection_id: CollectionId,848		field: CollectionField,849		value: Vec<u8>,850	) -> DispatchResult {851		if !value.is_empty() {852			<CollectionData<T>>::insert(853				(collection_id, field),854				BoundedVec::try_from(value).map_err(|_| <Error<T>>::CollectionFieldSizeExceeded)?,855			)856		} else {857			<CollectionData<T>>::remove((collection_id, field));858		}859		Ok(())860	}861862	pub fn set_field(863		collection: &CollectionHandle<T>,864		sender: &T::CrossAccountId,865		field: CollectionField,866		value: Vec<u8>,867	) -> DispatchResult {868		collection.check_is_owner_or_admin(sender)?;869870		// =========871872		Self::set_field_raw(collection.id, field, value)873	}874875	pub fn toggle_allowlist(876		collection: &CollectionHandle<T>,877		sender: &T::CrossAccountId,878		user: &T::CrossAccountId,879		allowed: bool,880	) -> DispatchResult {881		collection.check_is_owner_or_admin(sender)?;882883		// =========884885		if allowed {886			<Allowlist<T>>::insert((collection.id, user), true);887		} else {888			<Allowlist<T>>::remove((collection.id, user));889		}890891		Ok(())892	}893894	pub fn toggle_admin(895		collection: &CollectionHandle<T>,896		sender: &T::CrossAccountId,897		user: &T::CrossAccountId,898		admin: bool,899	) -> DispatchResult {900		collection.check_is_owner_or_admin(sender)?;901902		let was_admin = <IsAdmin<T>>::get((collection.id, user));903		if was_admin == admin {904			return Ok(());905		}906		let amount = <AdminAmount<T>>::get(collection.id);907908		if admin {909			let amount = amount910				.checked_add(1)911				.ok_or(<Error<T>>::CollectionAdminCountExceeded)?;912			ensure!(913				amount <= Self::collection_admins_limit(),914				<Error<T>>::CollectionAdminCountExceeded,915			);916917			// =========918919			<AdminAmount<T>>::insert(collection.id, amount);920			<IsAdmin<T>>::insert((collection.id, user), true);921		} else {922			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));923			<IsAdmin<T>>::remove((collection.id, user));924		}925926		Ok(())927	}928929	pub fn clamp_limits(930		mode: CollectionMode,931		old_limit: &CollectionLimits,932		mut new_limit: CollectionLimits,933	) -> Result<CollectionLimits, DispatchError> {934		macro_rules! limit_default {935				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{936					$(937						if let Some($new) = $new.$field {938							let $old = $old.$field($($arg)?);939							let _ = $new;940							let _ = $old;941							$check942						} else {943							$new.$field = $old.$field944						}945					)*946				}};947			}948949		limit_default!(old_limit, new_limit,950			account_token_ownership_limit => ensure!(951				new_limit <= MAX_TOKEN_OWNERSHIP,952				<Error<T>>::CollectionLimitBoundsExceeded,953			),954			sponsor_transfer_timeout(match mode {955				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,956				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,957				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,958			}) => ensure!(959				new_limit <= MAX_SPONSOR_TIMEOUT,960				<Error<T>>::CollectionLimitBoundsExceeded,961			),962			sponsored_data_size => ensure!(963				new_limit <= CUSTOM_DATA_LIMIT,964				<Error<T>>::CollectionLimitBoundsExceeded,965			),966			token_limit => ensure!(967				old_limit >= new_limit && new_limit > 0,968				<Error<T>>::CollectionTokenLimitExceeded969			),970			owner_can_transfer => ensure!(971				old_limit || !new_limit,972				<Error<T>>::OwnerPermissionsCantBeReverted,973			),974			owner_can_destroy => ensure!(975				old_limit || !new_limit,976				<Error<T>>::OwnerPermissionsCantBeReverted,977			),978			sponsored_data_rate_limit => {},979			transfers_enabled => {},980		);981		Ok(new_limit)982	}983}984985#[macro_export]986macro_rules! unsupported {987	() => {988		Err(<Error<T>>::UnsupportedOperation.into())989	};990}991992/// Worst cases993pub trait CommonWeightInfo<CrossAccountId> {994	fn create_item() -> Weight;995	fn create_multiple_items(amount: u32) -> Weight;996	fn create_multiple_items_ex(cost: &CreateItemExData<CrossAccountId>) -> Weight;997	fn burn_item() -> Weight;998	fn set_collection_properties(amount: u32) -> Weight;999	fn delete_collection_properties(amount: u32) -> Weight;1000	fn set_token_properties(amount: u32) -> Weight;1001	fn delete_token_properties(amount: u32) -> Weight;1002	fn set_property_permissions(amount: u32) -> Weight;1003	fn transfer() -> Weight;1004	fn approve() -> Weight;1005	fn transfer_from() -> Weight;1006	fn burn_from() -> Weight;1007	fn set_variable_metadata(bytes: u32) -> Weight;1008}10091010pub trait CommonCollectionOperations<T: Config> {1011	fn create_item(1012		&self,1013		sender: T::CrossAccountId,1014		to: T::CrossAccountId,1015		data: CreateItemData,1016		nesting_budget: &dyn Budget,1017	) -> DispatchResultWithPostInfo;1018	fn create_multiple_items(1019		&self,1020		sender: T::CrossAccountId,1021		to: T::CrossAccountId,1022		data: Vec<CreateItemData>,1023		nesting_budget: &dyn Budget,1024	) -> DispatchResultWithPostInfo;1025	fn create_multiple_items_ex(1026		&self,1027		sender: T::CrossAccountId,1028		data: CreateItemExData<T::CrossAccountId>,1029		nesting_budget: &dyn Budget,1030	) -> DispatchResultWithPostInfo;1031	fn burn_item(1032		&self,1033		sender: T::CrossAccountId,1034		token: TokenId,1035		amount: u128,1036	) -> DispatchResultWithPostInfo;1037	fn set_collection_properties(1038		&self,1039		sender: T::CrossAccountId,1040		properties: Vec<Property>,1041	) -> DispatchResultWithPostInfo;1042	fn delete_collection_properties(1043		&self,1044		sender: &T::CrossAccountId,1045		property_keys: Vec<PropertyKey>,1046	) -> DispatchResultWithPostInfo;1047	fn set_token_properties(1048		&self,1049		sender: T::CrossAccountId,1050		token_id: TokenId,1051		property: Vec<Property>,1052	) -> DispatchResultWithPostInfo;1053	fn delete_token_properties(1054		&self,1055		sender: T::CrossAccountId,1056		token_id: TokenId,1057		property_keys: Vec<PropertyKey>,1058	) -> DispatchResultWithPostInfo;1059	fn set_property_permissions(1060		&self,1061		sender: &T::CrossAccountId,1062		property_permissions: Vec<PropertyKeyPermission>,1063	) -> DispatchResultWithPostInfo;1064	fn transfer(1065		&self,1066		sender: T::CrossAccountId,1067		to: T::CrossAccountId,1068		token: TokenId,1069		amount: u128,1070		nesting_budget: &dyn Budget,1071	) -> DispatchResultWithPostInfo;1072	fn approve(1073		&self,1074		sender: T::CrossAccountId,1075		spender: T::CrossAccountId,1076		token: TokenId,1077		amount: u128,1078	) -> DispatchResultWithPostInfo;1079	fn transfer_from(1080		&self,1081		sender: T::CrossAccountId,1082		from: T::CrossAccountId,1083		to: T::CrossAccountId,1084		token: TokenId,1085		amount: u128,1086		nesting_budget: &dyn Budget,1087	) -> DispatchResultWithPostInfo;1088	fn burn_from(1089		&self,1090		sender: T::CrossAccountId,1091		from: T::CrossAccountId,1092		token: TokenId,1093		amount: u128,1094		nesting_budget: &dyn Budget,1095	) -> DispatchResultWithPostInfo;10961097	fn set_variable_metadata(1098		&self,1099		sender: T::CrossAccountId,1100		token: TokenId,1101		data: BoundedVec<u8, CustomDataLimit>,1102	) -> DispatchResultWithPostInfo;11031104	fn check_nesting(1105		&self,1106		sender: T::CrossAccountId,1107		from: (CollectionId, TokenId),1108		under: TokenId,1109		budget: &dyn Budget,1110	) -> DispatchResult;11111112	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;1113	fn collection_tokens(&self) -> Vec<TokenId>;1114	fn token_exists(&self, token: TokenId) -> bool;1115	fn last_token_id(&self) -> TokenId;11161117	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;1118	fn const_metadata(&self, token: TokenId) -> Vec<u8>;1119	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;11201121	/// Amount of unique collection tokens1122	fn total_supply(&self) -> u32;1123	/// Amount of different tokens account has (Applicable to nonfungible/refungible)1124	fn account_balance(&self, account: T::CrossAccountId) -> u32;1125	/// Amount of specific token account have (Applicable to fungible/refungible)1126	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;1127	fn allowance(1128		&self,1129		sender: T::CrossAccountId,1130		spender: T::CrossAccountId,1131		token: TokenId,1132	) -> u128;1133}11341135// Flexible enough for implementing CommonCollectionOperations1136pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {1137	let post_info = PostDispatchInfo {1138		actual_weight: Some(weight),1139		pays_fee: Pays::Yes,1140	};1141	match res {1142		Ok(()) => Ok(post_info),1143		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),1144	}1145}11461147impl<T: Config> From<PropertiesError> for Error<T> {1148	fn from(error: PropertiesError) -> Self {1149		match error {1150			PropertiesError::NoSpaceForProperty => Self::NoSpaceForProperty,1151			PropertiesError::PropertyLimitReached => Self::PropertyLimitReached,1152		}1153	}1154}