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::{20	convert::{TryFrom, TryInto},21	fmt,22};23use frame_support::{24	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},25	traits::Get,26};2728#[cfg(feature = "serde")]29use serde::{Serialize, Deserialize};3031use sp_core::U256;32use sp_runtime::{ArithmeticError, sp_std::prelude::Vec, DispatchError};33use codec::{Decode, Encode, EncodeLike, MaxEncodedLen};34use frame_support::{BoundedVec, traits::ConstU32};35use derivative::Derivative;36use scale_info::TypeInfo;3738mod bounded;39pub mod budget;40pub mod mapping;41mod migration;4243pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;44pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;45pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;4647pub const MAX_TOKEN_OWNERSHIP: u32 = if cfg!(not(feature = "limit-testing")) {48	100_00049} else {50	1051};52pub const COLLECTION_NUMBER_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {53	100_00054} else {55	1056};57pub const CUSTOM_DATA_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {58	204859} else {60	1061};62pub const COLLECTION_ADMINS_LIMIT: u32 = 5;63pub const COLLECTION_TOKEN_LIMIT: u32 = u32::MAX;64pub const ACCOUNT_TOKEN_OWNERSHIP_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {65	1_000_00066} else {67	1068};6970// Timeouts for item types in passed blocks71pub const NFT_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;72pub const FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;73pub const REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;7475pub const SPONSOR_APPROVE_TIMEOUT: u32 = 5;7677// Schema limits78pub const OFFCHAIN_SCHEMA_LIMIT: u32 = 8192;79pub const VARIABLE_ON_CHAIN_SCHEMA_LIMIT: u32 = 8192;80pub const CONST_ON_CHAIN_SCHEMA_LIMIT: u32 = 32768;8182pub const COLLECTION_FIELD_LIMIT: u32 = CONST_ON_CHAIN_SCHEMA_LIMIT;83// u32::max is not const: OFFCHAIN_SCHEMA_LIMIT.max(VARIABLE_ON_CHAIN_SCHEMA_LIMIT).max(CONST_ON_CHAIN_SCHEMA_LIMIT);8485pub const MAX_COLLECTION_NAME_LENGTH: u32 = 64;86pub const MAX_COLLECTION_DESCRIPTION_LENGTH: u32 = 256;87pub const MAX_TOKEN_PREFIX_LENGTH: u32 = 16;8889pub const MAX_PROPERTY_KEY_LENGTH: u32 = 256;90pub const MAX_PROPERTY_VALUE_LENGTH: u32 = 32768;91pub const MAX_PROPERTIES_PER_ITEM: u32 = 64;9293// pub const MAX_PROPERTY_KEYS_OVERALL_LENGTH: u32 = MAX_PROPERTY_KEY_LENGTH * MAX_PROPERTIES_PER_ITEM;94pub const MAX_COLLECTION_PROPERTIES_SIZE: u32 = 40960;95pub const MAX_TOKEN_PROPERTIES_SIZE: u32 = 32768;9697pub const MAX_COLLECTION_PROPERTIES_ENCODE_LEN: u32 =98	MAX_PROPERTIES_PER_ITEM * MAX_PROPERTY_KEY_LENGTH + MAX_COLLECTION_PROPERTIES_SIZE;99100pub struct MaxPropertiesPermissionsEncodeLen;101102impl Get<u32> for MaxPropertiesPermissionsEncodeLen {103	fn get() -> u32 {104		MAX_PROPERTIES_PER_ITEM * MAX_PROPERTY_KEY_LENGTH105			+ <PropertyPermission as MaxEncodedLen>::max_encoded_len() as u32106	}107}108109/// How much items can be created per single110/// create_many call111pub const MAX_ITEMS_PER_BATCH: u32 = 200;112113pub type CustomDataLimit = ConstU32<CUSTOM_DATA_LIMIT>;114115#[derive(116	Encode,117	Decode,118	PartialEq,119	Eq,120	PartialOrd,121	Ord,122	Clone,123	Copy,124	Debug,125	Default,126	TypeInfo,127	MaxEncodedLen,128)]129#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]130pub struct CollectionId(pub u32);131impl EncodeLike<u32> for CollectionId {}132impl EncodeLike<CollectionId> for u32 {}133134#[derive(135	Encode,136	Decode,137	PartialEq,138	Eq,139	PartialOrd,140	Ord,141	Clone,142	Copy,143	Debug,144	Default,145	TypeInfo,146	MaxEncodedLen,147)]148#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]149pub struct TokenId(pub u32);150impl EncodeLike<u32> for TokenId {}151impl EncodeLike<TokenId> for u32 {}152153impl TokenId {154	pub fn try_next(self) -> Result<TokenId, ArithmeticError> {155		self.0156			.checked_add(1)157			.ok_or(ArithmeticError::Overflow)158			.map(Self)159	}160}161162impl From<TokenId> for U256 {163	fn from(t: TokenId) -> Self {164		t.0.into()165	}166}167168impl TryFrom<U256> for TokenId {169	type Error = &'static str;170171	fn try_from(value: U256) -> Result<Self, Self::Error> {172		Ok(TokenId(value.try_into().map_err(|_| "too large token id")?))173	}174}175176pub struct OverflowError;177impl From<OverflowError> for &'static str {178	fn from(_: OverflowError) -> Self {179		"overflow occured"180	}181}182183pub type DecimalPoints = u8;184185#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]186#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]187pub enum CollectionMode {188	NFT,189	// decimal points190	Fungible(DecimalPoints),191	ReFungible,192}193194impl CollectionMode {195	pub fn id(&self) -> u8 {196		match self {197			CollectionMode::NFT => 1,198			CollectionMode::Fungible(_) => 2,199			CollectionMode::ReFungible => 3,200		}201	}202}203204pub trait SponsoringResolve<AccountId, Call> {205	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;206}207208#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]209#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]210pub enum AccessMode {211	Normal,212	AllowList,213}214impl Default for AccessMode {215	fn default() -> Self {216		Self::Normal217	}218}219220#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]221#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]222pub enum SchemaVersion {223	ImageURL,224	Unique,225}226impl Default for SchemaVersion {227	fn default() -> Self {228		Self::ImageURL229	}230}231232#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]233#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]234pub struct Ownership<AccountId> {235	pub owner: AccountId,236	pub fraction: u128,237}238239#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]240#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]241pub enum SponsorshipState<AccountId> {242	/// The fees are applied to the transaction sender243	Disabled,244	Unconfirmed(AccountId),245	/// Transactions are sponsored by specified account246	Confirmed(AccountId),247}248249impl<AccountId> SponsorshipState<AccountId> {250	pub fn sponsor(&self) -> Option<&AccountId> {251		match self {252			Self::Confirmed(sponsor) => Some(sponsor),253			_ => None,254		}255	}256257	pub fn pending_sponsor(&self) -> Option<&AccountId> {258		match self {259			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),260			_ => None,261		}262	}263264	pub fn confirmed(&self) -> bool {265		matches!(self, Self::Confirmed(_))266	}267}268269impl<T> Default for SponsorshipState<T> {270	fn default() -> Self {271		Self::Disabled272	}273}274275/// Used in storage276#[struct_versioning::versioned(version = 2, upper)]277#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]278pub struct Collection<AccountId> {279	pub owner: AccountId,280	pub mode: CollectionMode,281	pub access: AccessMode,282	pub name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,283	pub description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,284	pub token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,285	pub mint_mode: bool,286287	#[version(..2)]288	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,289290	pub schema_version: SchemaVersion,291	pub sponsorship: SponsorshipState<AccountId>,292293	#[version(..2)]294	pub limits: CollectionLimitsVersion1, // Collection private restrictions295	#[version(2.., upper(limits.into()))]296	pub limits: CollectionLimitsVersion2,297298	#[version(..2)]299	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,300	#[version(..2)]301	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,302303	pub meta_update_permission: MetaUpdatePermission,304}305306/// Used in RPC calls307#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]308#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]309pub struct RpcCollection<AccountId> {310	pub owner: AccountId,311	pub mode: CollectionMode,312	pub access: AccessMode,313	pub name: Vec<u16>,314	pub description: Vec<u16>,315	pub token_prefix: Vec<u8>,316	pub mint_mode: bool,317	pub offchain_schema: Vec<u8>,318	pub schema_version: SchemaVersion,319	pub sponsorship: SponsorshipState<AccountId>,320	pub limits: CollectionLimits,321	pub variable_on_chain_schema: Vec<u8>,322	pub const_on_chain_schema: Vec<u8>,323	pub meta_update_permission: MetaUpdatePermission,324}325326#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]327#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]328pub enum CollectionField {329	VariableOnChainSchema,330	ConstOnChainSchema,331	OffchainSchema,332}333334#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, Derivative, MaxEncodedLen)]335#[derivative(Debug, Default(bound = ""))]336pub struct CreateCollectionData<AccountId> {337	#[derivative(Default(value = "CollectionMode::NFT"))]338	pub mode: CollectionMode,339	pub access: Option<AccessMode>,340	pub name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,341	pub description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,342	pub token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,343	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,344	pub schema_version: Option<SchemaVersion>,345	pub pending_sponsor: Option<AccountId>,346	pub limits: Option<CollectionLimits>,347	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,348	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,349	pub meta_update_permission: Option<MetaUpdatePermission>,350	pub token_property_permissions: CollectionPropertiesPermissionsVec,351	pub properties: CollectionPropertiesVec,352}353354pub type CollectionPropertiesPermissionsVec =355	BoundedVec<PropertyKeyPermission, MaxPropertiesPermissionsEncodeLen>;356357pub type CollectionPropertiesVec =358	BoundedVec<Property, ConstU32<MAX_COLLECTION_PROPERTIES_ENCODE_LEN>>;359360#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo)]361#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]362pub struct NftItemType<AccountId> {363	pub owner: AccountId,364	pub const_data: Vec<u8>,365	pub variable_data: Vec<u8>,366}367368#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]369#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]370pub struct FungibleItemType {371	pub value: u128,372}373374#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo)]375#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]376pub struct ReFungibleItemType<AccountId> {377	pub owner: Vec<Ownership<AccountId>>,378	pub const_data: Vec<u8>,379	pub variable_data: Vec<u8>,380}381382/// All fields are wrapped in `Option`s, where None means chain default383#[struct_versioning::versioned(version = 2, upper)]384#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]385#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]386pub struct CollectionLimits {387	pub account_token_ownership_limit: Option<u32>,388	pub sponsored_data_size: Option<u32>,389	/// None - setVariableMetadata is not sponsored390	/// Some(v) - setVariableMetadata is sponsored391	///           if there is v block between txs392	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,393	pub token_limit: Option<u32>,394395	// Timeouts for item types in passed blocks396	pub sponsor_transfer_timeout: Option<u32>,397	pub sponsor_approve_timeout: Option<u32>,398	pub owner_can_transfer: Option<bool>,399	pub owner_can_destroy: Option<bool>,400	pub transfers_enabled: Option<bool>,401402	#[version(2.., upper(None))]403	pub nesting_rule: Option<NestingRule>,404}405406impl CollectionLimits {407	pub fn account_token_ownership_limit(&self) -> u32 {408		self.account_token_ownership_limit409			.unwrap_or(ACCOUNT_TOKEN_OWNERSHIP_LIMIT)410			.min(MAX_TOKEN_OWNERSHIP)411	}412	pub fn sponsored_data_size(&self) -> u32 {413		self.sponsored_data_size414			.unwrap_or(CUSTOM_DATA_LIMIT)415			.min(CUSTOM_DATA_LIMIT)416	}417	pub fn token_limit(&self) -> u32 {418		self.token_limit419			.unwrap_or(COLLECTION_TOKEN_LIMIT)420			.min(COLLECTION_TOKEN_LIMIT)421	}422	pub fn sponsor_transfer_timeout(&self, default: u32) -> u32 {423		self.sponsor_transfer_timeout424			.unwrap_or(default)425			.min(MAX_SPONSOR_TIMEOUT)426	}427	pub fn sponsor_approve_timeout(&self) -> u32 {428		self.sponsor_approve_timeout429			.unwrap_or(SPONSOR_APPROVE_TIMEOUT)430			.min(MAX_SPONSOR_TIMEOUT)431	}432	pub fn owner_can_transfer(&self) -> bool {433		self.owner_can_transfer.unwrap_or(true)434	}435	pub fn owner_can_destroy(&self) -> bool {436		self.owner_can_destroy.unwrap_or(true)437	}438	pub fn transfers_enabled(&self) -> bool {439		self.transfers_enabled.unwrap_or(true)440	}441	pub fn sponsored_data_rate_limit(&self) -> Option<u32> {442		match self443			.sponsored_data_rate_limit444			.unwrap_or(SponsoringRateLimit::SponsoringDisabled)445		{446			SponsoringRateLimit::SponsoringDisabled => None,447			SponsoringRateLimit::Blocks(v) => Some(v.min(MAX_SPONSOR_TIMEOUT)),448		}449	}450	pub fn nesting_rule(&self) -> &NestingRule {451		static DEFAULT: NestingRule = NestingRule::Owner;452		self.nesting_rule.as_ref().unwrap_or(&DEFAULT)453	}454}455456#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]457#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]458#[derivative(Debug)]459pub enum NestingRule {460	/// No one can nest tokens461	Disabled,462	/// Owner can nest any tokens463	Owner,464	/// Owner can nest tokens from specified collections465	OwnerRestricted(466		#[cfg_attr(feature = "serde1", serde(with = "bounded::set_serde"))]467		#[derivative(Debug(format_with = "bounded::set_debug"))]468		BoundedBTreeSet<CollectionId, ConstU32<16>>,469	),470}471472#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]473#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]474pub enum SponsoringRateLimit {475	SponsoringDisabled,476	Blocks(u32),477}478479#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]480#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]481#[derivative(Debug)]482pub struct CreateNftData {483	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]484	#[derivative(Debug(format_with = "bounded::vec_debug"))]485	pub const_data: BoundedVec<u8, CustomDataLimit>,486	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]487	#[derivative(Debug(format_with = "bounded::vec_debug"))]488	pub variable_data: BoundedVec<u8, CustomDataLimit>,489}490491#[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]492#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]493pub struct CreateFungibleData {494	pub value: u128,495}496497#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]498#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]499#[derivative(Debug)]500pub struct CreateReFungibleData {501	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]502	#[derivative(Debug(format_with = "bounded::vec_debug"))]503	pub const_data: BoundedVec<u8, CustomDataLimit>,504	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]505	#[derivative(Debug(format_with = "bounded::vec_debug"))]506	pub variable_data: BoundedVec<u8, CustomDataLimit>,507	pub pieces: u128,508}509510#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]511#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]512pub enum MetaUpdatePermission {513	ItemOwner,514	Admin,515	None,516}517518impl Default for MetaUpdatePermission {519	fn default() -> Self {520		Self::ItemOwner521	}522}523524#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]525#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]526pub enum CreateItemData {527	NFT(CreateNftData),528	Fungible(CreateFungibleData),529	ReFungible(CreateReFungibleData),530}531532#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]533#[derivative(Debug)]534pub struct CreateNftExData<CrossAccountId> {535	#[derivative(Debug(format_with = "bounded::vec_debug"))]536	pub const_data: BoundedVec<u8, CustomDataLimit>,537	#[derivative(Debug(format_with = "bounded::vec_debug"))]538	pub variable_data: BoundedVec<u8, CustomDataLimit>,539	pub owner: CrossAccountId,540}541542#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]543#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]544pub struct CreateRefungibleExData<CrossAccountId> {545	#[derivative(Debug(format_with = "bounded::vec_debug"))]546	pub const_data: BoundedVec<u8, CustomDataLimit>,547	#[derivative(Debug(format_with = "bounded::vec_debug"))]548	pub variable_data: BoundedVec<u8, CustomDataLimit>,549	#[derivative(Debug(format_with = "bounded::map_debug"))]550	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,551}552553#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]554#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]555pub enum CreateItemExData<CrossAccountId> {556	NFT(557		#[derivative(Debug(format_with = "bounded::vec_debug"))]558		BoundedVec<CreateNftExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,559	),560	Fungible(561		#[derivative(Debug(format_with = "bounded::map_debug"))]562		BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,563	),564	/// Many tokens, each may have only one owner565	RefungibleMultipleItems(566		#[derivative(Debug(format_with = "bounded::vec_debug"))]567		BoundedVec<CreateRefungibleExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,568	),569	/// Single token, which may have many owners570	RefungibleMultipleOwners(CreateRefungibleExData<CrossAccountId>),571}572573impl CreateItemData {574	pub fn data_size(&self) -> usize {575		match self {576			CreateItemData::NFT(data) => data.variable_data.len() + data.const_data.len(),577			CreateItemData::ReFungible(data) => data.variable_data.len() + data.const_data.len(),578			_ => 0,579		}580	}581}582583impl From<CreateNftData> for CreateItemData {584	fn from(item: CreateNftData) -> Self {585		CreateItemData::NFT(item)586	}587}588589impl From<CreateReFungibleData> for CreateItemData {590	fn from(item: CreateReFungibleData) -> Self {591		CreateItemData::ReFungible(item)592	}593}594595impl From<CreateFungibleData> for CreateItemData {596	fn from(item: CreateFungibleData) -> Self {597		CreateItemData::Fungible(item)598	}599}600601#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]602#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]603pub struct CollectionStats {604	pub created: u32,605	pub destroyed: u32,606	pub alive: u32,607}608609#[derive(Encode, Decode, PartialEq, Clone, Debug)]610pub struct PhantomType<T>(core::marker::PhantomData<T>);611612impl<T: TypeInfo + 'static> TypeInfo for PhantomType<T> {613	type Identity = PhantomType<T>;614615	fn type_info() -> scale_info::Type {616		use scale_info::{617			Type, Path,618			build::{FieldsBuilder, UnnamedFields},619			type_params,620		};621		Type::builder()622			.path(Path::new("up_data_structs", "PhantomType"))623			.type_params(type_params!(T))624			.composite(<FieldsBuilder<UnnamedFields>>::default().field(|b| b.ty::<[T; 0]>()))625	}626}627impl<T> MaxEncodedLen for PhantomType<T> {628	fn max_encoded_len() -> usize {629		0630	}631}632633pub type PropertyKey = BoundedVec<u8, ConstU32<MAX_PROPERTY_KEY_LENGTH>>;634pub type PropertyValue = BoundedVec<u8, ConstU32<MAX_PROPERTY_VALUE_LENGTH>>;635636#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]637pub enum PropertyPermission {638	None,639	AdminConst,640	Admin,641	ItemOwnerConst,642	ItemOwner,643	ItemOwnerOrAdmin,644}645646#[derive(Encode, Decode, Debug, TypeInfo, Clone, PartialEq, MaxEncodedLen)]647pub struct Property {648	pub key: PropertyKey,649	pub value: PropertyValue,650}651652#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]653pub struct PropertyKeyPermission {654	pub key: PropertyKey,655	pub permission: PropertyPermission,656}657658pub enum PropertiesError {659	NoSpaceForProperty,660	PropertyLimitReached,661}662663pub type PropertiesMap =664	BoundedBTreeMap<PropertyKey, PropertyValue, ConstU32<MAX_PROPERTIES_PER_ITEM>>;665pub type PropertiesPermissionMap =666	BoundedBTreeMap<PropertyKey, PropertyPermission, ConstU32<MAX_PROPERTIES_PER_ITEM>>;667668#[derive(Encode, Decode, TypeInfo, Clone, PartialEq, MaxEncodedLen)]669pub struct Properties {670	map: PropertiesMap,671	consumed_space: u32,672	space_limit: u32,673}674675impl Properties {676	pub fn new(space_limit: u32) -> Self {677		Self {678			map: BoundedBTreeMap::new(),679			consumed_space: 0,680			space_limit,681		}682	}683684	pub fn from_collection_props_vec(685		data: CollectionPropertiesVec,686	) -> Result<Self, PropertiesError> {687		let mut props = Self::new(MAX_COLLECTION_PROPERTIES_SIZE);688689		for property in data.into_iter() {690			props.try_set_property(property)?;691		}692693		Ok(props)694	}695696	pub fn try_set_property(&mut self, property: Property) -> Result<(), PropertiesError> {697		let value_len = property.value.len();698699		if self.consumed_space as usize + value_len > self.space_limit as usize {700			return Err(PropertiesError::NoSpaceForProperty);701		}702703		self.map704			.try_insert(property.key, property.value)705			.map_err(|_| PropertiesError::PropertyLimitReached)?;706707		self.consumed_space += value_len as u32;708709		Ok(())710	}711712	pub fn remove_property(&mut self, key: &PropertyKey) {713		let property = self.map.get(key);714715		if let Some(value) = property {716			let value_len = value.len() as u32;717718			self.map.remove(key);719			self.consumed_space -= value_len;720		}721	}722723	pub fn get_property(&self, key: &PropertyKey) -> Option<&PropertyValue> {724		self.map.get(key)725	}726}727728pub struct CollectionProperties;729730impl Get<Properties> for CollectionProperties {731	fn get() -> Properties {732		Properties::new(MAX_COLLECTION_PROPERTIES_SIZE)733	}734}735736pub struct TokenProperties;737738impl Get<Properties> for TokenProperties {739	fn get() -> Properties {740		Properties::new(MAX_TOKEN_PROPERTIES_SIZE)741	}742}