git.delta.rocks / unique-network / refs/commits / 9ca985e04f6a

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#![recursion_limit = "1024"]18#![cfg_attr(not(feature = "std"), no_std)]19#![allow(20	clippy::too_many_arguments,21	clippy::unnecessary_mut_passed,22	clippy::unused_unit23)]2425extern crate alloc;2627use frame_support::{28	decl_module, decl_storage, decl_error, decl_event,29	dispatch::DispatchResult,30	ensure, fail,31	weights::{Weight},32	transactional,33	pallet_prelude::{DispatchResultWithPostInfo, ConstU32},34	BoundedVec,35};36use scale_info::TypeInfo;37use frame_system::{self as system, ensure_signed};38use sp_runtime::{sp_std::prelude::Vec};39use up_data_structs::{40	MAX_COLLECTION_NAME_LENGTH, MAX_COLLECTION_DESCRIPTION_LENGTH, MAX_TOKEN_PREFIX_LENGTH,41	CreateItemData, CollectionLimits, CollectionPermissions, CollectionId, CollectionMode, TokenId,42	SponsorshipState, CreateCollectionData, CreateItemExData, budget, Property, PropertyKey,43	PropertyKeyPermission,44};45use pallet_evm::account::CrossAccountId;46use pallet_common::{47	CollectionHandle, Pallet as PalletCommon, CommonWeightInfo, dispatch::dispatch_tx,48	dispatch::CollectionDispatch, RefungibleExtensionsWeightInfo,49};50pub mod eth;5152#[cfg(feature = "runtime-benchmarks")]53mod benchmarking;54pub mod weights;55use weights::WeightInfo;5657const NESTING_BUDGET: u32 = 5;5859decl_error! {60	/// Error for non-fungible-token module.61	pub enum Error for Module<T: Config> {62		/// Decimal_points parameter must be lower than MAX_DECIMAL_POINTS constant, currently it is 30.63		CollectionDecimalPointLimitExceeded,64		/// This address is not set as sponsor, use setCollectionSponsor first.65		ConfirmUnsetSponsorFail,66		/// Length of items properties must be greater than 0.67		EmptyArgument,68		/// Repertition is only supported by refungible collection69		RepartitionCalledOnNonRefungibleCollection,70	}71}7273pub trait Config: system::Config + pallet_common::Config + Sized + TypeInfo {74	type Event: From<Event<Self>> + Into<<Self as frame_system::Config>::Event>;7576	/// Weight information for extrinsics in this pallet.77	type WeightInfo: WeightInfo;78	type CommonWeightInfo: CommonWeightInfo<Self::CrossAccountId>;79	type RefungibleExtensionsWeightInfo: RefungibleExtensionsWeightInfo;80}8182decl_event! {83	pub enum Event<T>84	where85		<T as frame_system::Config>::AccountId,86		<T as pallet_evm::account::Config>::CrossAccountId,87	{88		/// Collection sponsor was removed89		///90		/// # Arguments91		///92		/// * collection_id: Globally unique collection identifier.93		CollectionSponsorRemoved(CollectionId),9495		/// Collection admin was added96		///97		/// # Arguments98		///99		/// * collection_id: Globally unique collection identifier.100		///101		/// * admin:  Admin address.102		CollectionAdminAdded(CollectionId, CrossAccountId),103104		/// Collection owned was change105		///106		/// # Arguments107		///108		/// * collection_id: Globally unique collection identifier.109		///110		/// * owner:  New owner address.111		CollectionOwnedChanged(CollectionId, AccountId),112113		/// Collection sponsor was set114		///115		/// # Arguments116		///117		/// * collection_id: Globally unique collection identifier.118		///119		/// * owner:  New sponsor address.120		CollectionSponsorSet(CollectionId, AccountId),121122		/// New sponsor was confirm123		///124		/// # Arguments125		///126		/// * collection_id: Globally unique collection identifier.127		///128		/// * sponsor:  New sponsor address.129		SponsorshipConfirmed(CollectionId, AccountId),130131		/// Collection admin was removed132		///133		/// # Arguments134		///135		/// * collection_id: Globally unique collection identifier.136		///137		/// * admin:  Admin address.138		CollectionAdminRemoved(CollectionId, CrossAccountId),139140		/// Address was remove from allow list141		///142		/// # Arguments143		///144		/// * collection_id: Globally unique collection identifier.145		///146		/// * user:  Address.147		AllowListAddressRemoved(CollectionId, CrossAccountId),148149		/// Address was add to allow list150		///151		/// # Arguments152		///153		/// * collection_id: Globally unique collection identifier.154		///155		/// * user:  Address.156		AllowListAddressAdded(CollectionId, CrossAccountId),157158		/// Collection limits was set159		///160		/// # Arguments161		///162		/// * collection_id: Globally unique collection identifier.163		CollectionLimitSet(CollectionId),164165		CollectionPermissionSet(CollectionId),166	}167}168169type SelfWeightOf<T> = <T as Config>::WeightInfo;170171// # Used definitions172//173// ## User control levels174//175// chain-controlled - key is uncontrolled by user176//                    i.e autoincrementing index177//                    can use non-cryptographic hash178// real - key is controlled by user179//        but it is hard to generate enough colliding values, i.e owner of signed txs180//        can use non-cryptographic hash181// controlled - key is completly controlled by users182//              i.e maps with mutable keys183//              should use cryptographic hash184//185// ## User control level downgrade reasons186//187// ?1 - chain-controlled -> controlled188//      collections/tokens can be destroyed, resulting in massive holes189// ?2 - chain-controlled -> controlled190//      same as ?1, but can be only added, resulting in easier exploitation191// ?3 - real -> controlled192//      no confirmation required, so addresses can be easily generated193decl_storage! {194	trait Store for Module<T: Config> as Unique {195196		//#region Private members197		/// Used for migrations198		ChainVersion: u64;199		//#endregion200201		//#region Tokens transfer rate limit baskets202		/// (Collection id (controlled?2), who created (real))203		/// TODO: Off chain worker should remove from this map when collection gets removed204		pub CreateItemBasket get(fn create_item_basket): map hasher(blake2_128_concat) (CollectionId, T::AccountId) => Option<T::BlockNumber>;205		/// Collection id (controlled?2), token id (controlled?2)206		pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;207		/// Collection id (controlled?2), owning user (real)208		pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => Option<T::BlockNumber>;209		/// Collection id (controlled?2), token id (controlled?2)210		pub ReFungibleTransferBasket get(fn refungible_transfer_basket): nmap hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId, hasher(twox_64_concat) T::AccountId => Option<T::BlockNumber>;211		//#endregion212213		/// Variable metadata sponsoring214		/// Collection id (controlled?2), token id (controlled?2)215		#[deprecated]216		pub VariableMetaDataBasket get(fn variable_meta_data_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;217		pub TokenPropertyBasket get(fn token_property_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;218219		/// Approval sponsoring220		pub NftApproveBasket get(fn nft_approve_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;221		pub FungibleApproveBasket get(fn fungible_approve_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => Option<T::BlockNumber>;222		pub RefungibleApproveBasket get(fn refungible_approve_basket): nmap hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId, hasher(twox_64_concat) T::AccountId => Option<T::BlockNumber>;223	}224}225226decl_module! {227	pub struct Module<T: Config> for enum Call228	where229		origin: T::Origin230	{231		type Error = Error<T>;232233		fn deposit_event() = default;234235		fn on_initialize(_now: T::BlockNumber) -> Weight {236			0237		}238239		fn on_runtime_upgrade() -> Weight {240			let limit = None;241242			<VariableMetaDataBasket<T>>::remove_all(limit);243244			0245		}246247		/// This method creates a Collection of NFTs. Each Token may have multiple properties encoded as an array of bytes of certain length. The initial owner of the collection is set to the address that signed the transaction and can be changed later.248		///249		/// # Permissions250		///251		/// * Anyone.252		///253		/// # Arguments254		///255		/// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.256		///257		/// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.258		///259		/// * token_prefix: UTF-8 string with token prefix.260		///261		/// * mode: [CollectionMode] collection type and type dependent data.262		// returns collection ID263		#[weight = <SelfWeightOf<T>>::create_collection()]264		#[transactional]265		#[deprecated]266		pub fn create_collection(origin,267								 collection_name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,268								 collection_description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,269								 token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,270								 mode: CollectionMode) -> DispatchResult  {271			let data: CreateCollectionData<T::AccountId> = CreateCollectionData {272				name: collection_name,273				description: collection_description,274				token_prefix,275				mode,276				..Default::default()277			};278			Self::create_collection_ex(origin, data)279		}280281		/// This method creates a collection282		///283		/// Prefer it to deprecated [`created_collection`] method284		#[weight = <SelfWeightOf<T>>::create_collection()]285		#[transactional]286		pub fn create_collection_ex(origin, data: CreateCollectionData<T::AccountId>) -> DispatchResult {287			let sender = ensure_signed(origin)?;288289			// =========290291			T::CollectionDispatch::create(T::CrossAccountId::from_sub(sender), data)?;292293			Ok(())294		}295296		/// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.297		///298		/// # Permissions299		///300		/// * Collection Owner.301		///302		/// # Arguments303		///304		/// * collection_id: collection to destroy.305		#[weight = <SelfWeightOf<T>>::destroy_collection()]306		#[transactional]307		pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {308			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);309			let collection = <CollectionHandle<T>>::try_get(collection_id)?;310			collection.check_is_internal()?;311312			// =========313314			T::CollectionDispatch::destroy(sender, collection)?;315316			<NftTransferBasket<T>>::remove_prefix(collection_id, None);317			<FungibleTransferBasket<T>>::remove_prefix(collection_id, None);318			<ReFungibleTransferBasket<T>>::remove_prefix((collection_id,), None);319320			<NftApproveBasket<T>>::remove_prefix(collection_id, None);321			<FungibleApproveBasket<T>>::remove_prefix(collection_id, None);322			<RefungibleApproveBasket<T>>::remove_prefix((collection_id,), None);323324			Ok(())325		}326327		/// Add an address to allow list.328		///329		/// # Permissions330		///331		/// * Collection Owner332		/// * Collection Admin333		///334		/// # Arguments335		///336		/// * collection_id.337		///338		/// * address.339		#[weight = <SelfWeightOf<T>>::add_to_allow_list()]340		#[transactional]341		pub fn add_to_allow_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{342343			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);344			let collection = <CollectionHandle<T>>::try_get(collection_id)?;345			collection.check_is_internal()?;346347			<PalletCommon<T>>::toggle_allowlist(348				&collection,349				&sender,350				&address,351				true,352			)?;353354			Self::deposit_event(Event::<T>::AllowListAddressAdded(355				collection_id,356				address357			));358359			Ok(())360		}361362		/// Remove an address from allow list.363		///364		/// # Permissions365		///366		/// * Collection Owner367		/// * Collection Admin368		///369		/// # Arguments370		///371		/// * collection_id.372		///373		/// * address.374		#[weight = <SelfWeightOf<T>>::remove_from_allow_list()]375		#[transactional]376		pub fn remove_from_allow_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{377378			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);379			let collection = <CollectionHandle<T>>::try_get(collection_id)?;380			collection.check_is_internal()?;381382			<PalletCommon<T>>::toggle_allowlist(383				&collection,384				&sender,385				&address,386				false,387			)?;388389			<Pallet<T>>::deposit_event(Event::<T>::AllowListAddressRemoved(390				collection_id,391				address392			));393394			Ok(())395		}396397		/// Change the owner of the collection.398		///399		/// # Permissions400		///401		/// * Collection Owner.402		///403		/// # Arguments404		///405		/// * collection_id.406		///407		/// * new_owner.408		#[weight = <SelfWeightOf<T>>::change_collection_owner()]409		#[transactional]410		pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {411412			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);413414			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;415			target_collection.check_is_internal()?;416			target_collection.check_is_owner(&sender)?;417418			target_collection.owner = new_owner.clone();419			<Pallet<T>>::deposit_event(Event::<T>::CollectionOwnedChanged(420				collection_id,421				new_owner422			));423424			target_collection.save()425		}426427		/// Adds an admin of the Collection.428		/// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership.429		///430		/// # Permissions431		///432		/// * Collection Owner.433		/// * Collection Admin.434		///435		/// # Arguments436		///437		/// * collection_id: ID of the Collection to add admin for.438		///439		/// * new_admin_id: Address of new admin to add.440		#[weight = <SelfWeightOf<T>>::add_collection_admin()]441		#[transactional]442		pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::CrossAccountId) -> DispatchResult {443			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);444			let collection = <CollectionHandle<T>>::try_get(collection_id)?;445			collection.check_is_internal()?;446447			<Pallet<T>>::deposit_event(Event::<T>::CollectionAdminAdded(448				collection_id,449				new_admin_id.clone()450			));451452			<PalletCommon<T>>::toggle_admin(&collection, &sender, &new_admin_id, true)453		}454455		/// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.456		///457		/// # Permissions458		///459		/// * Collection Owner.460		/// * Collection Admin.461		///462		/// # Arguments463		///464		/// * collection_id: ID of the Collection to remove admin for.465		///466		/// * account_id: Address of admin to remove.467		#[weight = <SelfWeightOf<T>>::remove_collection_admin()]468		#[transactional]469		pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::CrossAccountId) -> DispatchResult {470			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);471			let collection = <CollectionHandle<T>>::try_get(collection_id)?;472			collection.check_is_internal()?;473474			<Pallet<T>>::deposit_event(Event::<T>::CollectionAdminRemoved(475				collection_id,476				account_id.clone()477			));478479			<PalletCommon<T>>::toggle_admin(&collection, &sender, &account_id, false)480		}481482		/// # Permissions483		///484		/// * Collection Owner485		///486		/// # Arguments487		///488		/// * collection_id.489		///490		/// * new_sponsor.491		#[weight = <SelfWeightOf<T>>::set_collection_sponsor()]492		#[transactional]493		pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {494			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);495496			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;497			target_collection.check_is_owner_or_admin(&sender)?;498			target_collection.check_is_internal()?;499500			target_collection.set_sponsor(new_sponsor.clone())?;501502			<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorSet(503				collection_id,504				new_sponsor505			));506507			target_collection.save()508		}509510		/// # Permissions511		///512		/// * Sponsor.513		///514		/// # Arguments515		///516		/// * collection_id.517		#[weight = <SelfWeightOf<T>>::confirm_sponsorship()]518		#[transactional]519		pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {520			let sender = ensure_signed(origin)?;521522			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;523			target_collection.check_is_internal()?;524			ensure!(525				target_collection.confirm_sponsorship(&sender)?,526				Error::<T>::ConfirmUnsetSponsorFail527			);528529			<Pallet<T>>::deposit_event(Event::<T>::SponsorshipConfirmed(530				collection_id,531				sender532			));533534			target_collection.save()535		}536537		/// Switch back to pay-per-own-transaction model.538		///539		/// # Permissions540		///541		/// * Collection owner.542		///543		/// # Arguments544		///545		/// * collection_id.546		#[weight = <SelfWeightOf<T>>::remove_collection_sponsor()]547		#[transactional]548		pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {549			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);550551			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;552			target_collection.check_is_internal()?;553			target_collection.check_is_owner(&sender)?;554555			target_collection.sponsorship = SponsorshipState::Disabled;556557			<Pallet<T>>::deposit_event(Event::<T>::CollectionSponsorRemoved(558				collection_id559			));560			target_collection.save()561		}562563		/// This method creates a concrete instance of NFT Collection created with CreateCollection method.564		///565		/// # Permissions566		///567		/// * Collection Owner.568		/// * Collection Admin.569		/// * Anyone if570		///     * Allow List is enabled, and571		///     * Address is added to allow list, and572		///     * MintPermission is enabled (see SetMintPermission method)573		///574		/// # Arguments575		///576		/// * collection_id: ID of the collection.577		///578		/// * owner: Address, initial owner of the NFT.579		///580		/// * data: Token data to store on chain.581		#[weight = T::CommonWeightInfo::create_item()]582		#[transactional]583		pub fn create_item(origin, collection_id: CollectionId, owner: T::CrossAccountId, data: CreateItemData) -> DispatchResultWithPostInfo {584			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);585			let budget = budget::Value::new(NESTING_BUDGET);586587			dispatch_tx::<T, _>(collection_id, |d| d.create_item(sender, owner, data, &budget))588		}589590		/// This method creates multiple items in a collection created with CreateCollection method.591		///592		/// # Permissions593		///594		/// * Collection Owner.595		/// * Collection Admin.596		/// * Anyone if597		///     * Allow List is enabled, and598		///     * Address is added to allow list, and599		///     * MintPermission is enabled (see SetMintPermission method)600		///601		/// # Arguments602		///603		/// * collection_id: ID of the collection.604		///605		/// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].606		///607		/// * owner: Address, initial owner of the NFT.608		#[weight = T::CommonWeightInfo::create_multiple_items(&items_data)]609		#[transactional]610		pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::CrossAccountId, items_data: Vec<CreateItemData>) -> DispatchResultWithPostInfo {611			ensure!(!items_data.is_empty(), Error::<T>::EmptyArgument);612			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);613			let budget = budget::Value::new(NESTING_BUDGET);614615			dispatch_tx::<T, _>(collection_id, |d| d.create_multiple_items(sender, owner, items_data, &budget))616		}617618		#[weight = T::CommonWeightInfo::set_collection_properties(properties.len() as u32)]619		#[transactional]620		pub fn set_collection_properties(621			origin,622			collection_id: CollectionId,623			properties: Vec<Property>624		) -> DispatchResultWithPostInfo {625			ensure!(!properties.is_empty(), Error::<T>::EmptyArgument);626627			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);628629			dispatch_tx::<T, _>(collection_id, |d| d.set_collection_properties(sender, properties))630		}631632		#[weight = T::CommonWeightInfo::delete_collection_properties(property_keys.len() as u32)]633		#[transactional]634		pub fn delete_collection_properties(635			origin,636			collection_id: CollectionId,637			property_keys: Vec<PropertyKey>,638		) -> DispatchResultWithPostInfo {639			ensure!(!property_keys.is_empty(), Error::<T>::EmptyArgument);640641			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);642643			dispatch_tx::<T, _>(collection_id, |d| d.delete_collection_properties(&sender, property_keys))644		}645646		#[weight = T::CommonWeightInfo::set_token_properties(properties.len() as u32)]647		#[transactional]648		pub fn set_token_properties(649			origin,650			collection_id: CollectionId,651			token_id: TokenId,652			properties: Vec<Property>653		) -> DispatchResultWithPostInfo {654			ensure!(!properties.is_empty(), Error::<T>::EmptyArgument);655656			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);657658			dispatch_tx::<T, _>(collection_id, |d| d.set_token_properties(sender, token_id, properties))659		}660661		#[weight = T::CommonWeightInfo::delete_token_properties(property_keys.len() as u32)]662		#[transactional]663		pub fn delete_token_properties(664			origin,665			collection_id: CollectionId,666			token_id: TokenId,667			property_keys: Vec<PropertyKey>668		) -> DispatchResultWithPostInfo {669			ensure!(!property_keys.is_empty(), Error::<T>::EmptyArgument);670671			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);672673			dispatch_tx::<T, _>(collection_id, |d| d.delete_token_properties(sender, token_id, property_keys))674		}675676		#[weight = T::CommonWeightInfo::set_token_property_permissions(property_permissions.len() as u32)]677		#[transactional]678		pub fn set_token_property_permissions(679			origin,680			collection_id: CollectionId,681			property_permissions: Vec<PropertyKeyPermission>,682		) -> DispatchResultWithPostInfo {683			ensure!(!property_permissions.is_empty(), Error::<T>::EmptyArgument);684685			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);686687			dispatch_tx::<T, _>(collection_id, |d| d.set_token_property_permissions(&sender, property_permissions))688		}689690		#[weight = T::CommonWeightInfo::create_multiple_items_ex(&data)]691		#[transactional]692		pub fn create_multiple_items_ex(origin, collection_id: CollectionId, data: CreateItemExData<T::CrossAccountId>) -> DispatchResultWithPostInfo {693			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);694			let budget = budget::Value::new(NESTING_BUDGET);695696			dispatch_tx::<T, _>(collection_id, |d| d.create_multiple_items_ex(sender, data, &budget))697		}698699		/// Set transfers_enabled value for particular collection700		///701		/// # Permissions702		///703		/// * Collection Owner.704		///705		/// # Arguments706		///707		/// * collection_id: ID of the collection.708		///709		/// * value: New flag value.710		#[weight = <SelfWeightOf<T>>::set_transfers_enabled_flag()]711		#[transactional]712		pub fn set_transfers_enabled_flag(origin, collection_id: CollectionId, value: bool) -> DispatchResult {713			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);714			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;715			target_collection.check_is_internal()?;716			target_collection.check_is_owner(&sender)?;717718			// =========719720			target_collection.limits.transfers_enabled = Some(value);721			target_collection.save()722		}723724		/// Destroys a concrete instance of NFT.725		///726		/// # Permissions727		///728		/// * Collection Owner.729		/// * Collection Admin.730		/// * Current NFT Owner.731		///732		/// # Arguments733		///734		/// * collection_id: ID of the collection.735		///736		/// * item_id: ID of NFT to burn.737		#[weight = T::CommonWeightInfo::burn_item()]738		#[transactional]739		pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResultWithPostInfo {740			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);741742			let post_info = dispatch_tx::<T, _>(collection_id, |d| d.burn_item(sender, item_id, value))?;743			if value == 1 {744				<NftTransferBasket<T>>::remove(collection_id, item_id);745				<NftApproveBasket<T>>::remove(collection_id, item_id);746			}747			// Those maps should be cleared only if token disappears completly, need to move this part of logic to pallets?748			// <FungibleApproveBasket<T>>::remove(collection_id, sender.as_sub());749			// <RefungibleApproveBasket<T>>::remove((collection_id, item_id, sender.as_sub()));750			Ok(post_info)751		}752753		/// Destroys a concrete instance of NFT on behalf of the owner754		/// See also: [`approve`]755		///756		/// # Permissions757		///758		/// * Collection Owner.759		/// * Collection Admin.760		/// * Current NFT Owner.761		///762		/// # Arguments763		///764		/// * collection_id: ID of the collection.765		///766		/// * item_id: ID of NFT to burn.767		///768		/// * from: owner of item769		#[weight = T::CommonWeightInfo::burn_from()]770		#[transactional]771		pub fn burn_from(origin, collection_id: CollectionId, from: T::CrossAccountId, item_id: TokenId, value: u128) -> DispatchResultWithPostInfo {772			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);773			let budget = budget::Value::new(NESTING_BUDGET);774775			dispatch_tx::<T, _>(collection_id, |d| d.burn_from(sender, from, item_id, value, &budget))776		}777778		/// Change ownership of the token.779		///780		/// # Permissions781		///782		/// * Collection Owner783		/// * Collection Admin784		/// * Current NFT owner785		///786		/// # Arguments787		///788		/// * recipient: Address of token recipient.789		///790		/// * collection_id.791		///792		/// * item_id: ID of the item793		///     * Non-Fungible Mode: Required.794		///     * Fungible Mode: Ignored.795		///     * Re-Fungible Mode: Required.796		///797		/// * value: Amount to transfer.798		///     * Non-Fungible Mode: Ignored799		///     * Fungible Mode: Must specify transferred amount800		///     * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)801		#[weight = T::CommonWeightInfo::transfer()]802		#[transactional]803		pub fn transfer(origin, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResultWithPostInfo {804			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);805			let budget = budget::Value::new(NESTING_BUDGET);806807			dispatch_tx::<T, _>(collection_id, |d| d.transfer(sender, recipient, item_id, value, &budget))808		}809810		/// Set, change, or remove approved address to transfer the ownership of the NFT.811		///812		/// # Permissions813		///814		/// * Collection Owner815		/// * Collection Admin816		/// * Current NFT owner817		///818		/// # Arguments819		///820		/// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).821		///822		/// * collection_id.823		///824		/// * item_id: ID of the item.825		#[weight = T::CommonWeightInfo::approve()]826		#[transactional]827		pub fn approve(origin, spender: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResultWithPostInfo {828			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);829830			dispatch_tx::<T, _>(collection_id, |d| d.approve(sender, spender, item_id, amount))831		}832833		/// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.834		///835		/// # Permissions836		/// * Collection Owner837		/// * Collection Admin838		/// * Current NFT owner839		/// * Address approved by current NFT owner840		///841		/// # Arguments842		///843		/// * from: Address that owns token.844		///845		/// * recipient: Address of token recipient.846		///847		/// * collection_id.848		///849		/// * item_id: ID of the item.850		///851		/// * value: Amount to transfer.852		#[weight = T::CommonWeightInfo::transfer_from()]853		#[transactional]854		pub fn transfer_from(origin, from: T::CrossAccountId, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResultWithPostInfo {855			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);856			let budget = budget::Value::new(NESTING_BUDGET);857858			dispatch_tx::<T, _>(collection_id, |d| d.transfer_from(sender, from, recipient, item_id, value, &budget))859		}860861		#[weight = <SelfWeightOf<T>>::set_collection_limits()]862		#[transactional]863		pub fn set_collection_limits(864			origin,865			collection_id: CollectionId,866			new_limit: CollectionLimits,867		) -> DispatchResult {868			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);869			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;870			target_collection.check_is_internal()?;871			target_collection.check_is_owner_or_admin(&sender)?;872			let old_limit = &target_collection.limits;873874			target_collection.limits = <PalletCommon<T>>::clamp_limits(target_collection.mode.clone(), &old_limit, new_limit)?;875876			<Pallet<T>>::deposit_event(Event::<T>::CollectionLimitSet(877				collection_id878			));879880			target_collection.save()881		}882883		#[weight = <SelfWeightOf<T>>::set_collection_limits()]884		#[transactional]885		pub fn set_collection_permissions(886			origin,887			collection_id: CollectionId,888			new_limit: CollectionPermissions,889		) -> DispatchResult {890			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);891			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;892			target_collection.check_is_internal()?;893			target_collection.check_is_owner_or_admin(&sender)?;894			let old_limit = &target_collection.permissions;895896			target_collection.permissions = <PalletCommon<T>>::clamp_permissions(target_collection.mode.clone(), &old_limit, new_limit)?;897898			<Pallet<T>>::deposit_event(Event::<T>::CollectionPermissionSet(899				collection_id900			));901902			target_collection.save()903		}904905		#[weight = T::RefungibleExtensionsWeightInfo::repartition()]906		#[transactional]907		pub fn repartition(908			origin,909			collection_id: CollectionId,910			token: TokenId,911			amount: u128,912		) -> DispatchResultWithPostInfo {913			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);914			dispatch_tx::<T, _>(collection_id, |d| {915				if let Some(refungible_extensions) = d.refungible_extensions() {916					refungible_extensions.repartition(&sender, token, amount)917				} else {918					fail!(<Error<T>>::RepartitionCalledOnNonRefungibleCollection)919				}920			})921		}922	}923}