git.delta.rocks / unique-network / refs/commits / 3db00dc56ee4

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};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;8384pub const MAX_COLLECTION_NAME_LENGTH: u32 = 64;85pub const MAX_COLLECTION_DESCRIPTION_LENGTH: u32 = 256;86pub const MAX_TOKEN_PREFIX_LENGTH: u32 = 16;8788pub const MAX_PROPERTY_KEY_LENGTH: u32 = 256;89pub const MAX_PROPERTY_VALUE_LENGTH: u32 = 32768;90pub const MAX_PROPERTIES_PER_ITEM: u32 = 64;9192// pub const MAX_PROPERTY_KEYS_OVERALL_LENGTH: u32 = MAX_PROPERTY_KEY_LENGTH * MAX_PROPERTIES_PER_ITEM;93pub const MAX_COLLECTION_PROPERTIES_SIZE: u32 = 40960;94pub const MAX_TOKEN_PROPERTIES_SIZE: u32 = 32768;9596pub const MAX_COLLECTION_PROPERTIES_ENCODE_LEN: u32 =97	MAX_PROPERTIES_PER_ITEM * MAX_PROPERTY_KEY_LENGTH + MAX_COLLECTION_PROPERTIES_SIZE;9899pub struct MaxPropertiesPermissionsEncodeLen;100101impl Get<u32> for MaxPropertiesPermissionsEncodeLen {102	fn get() -> u32 {103		MAX_PROPERTIES_PER_ITEM * MAX_PROPERTY_KEY_LENGTH104			+ <PropertyPermission as MaxEncodedLen>::max_encoded_len() as u32105	}106}107108/// How much items can be created per single109/// create_many call110pub const MAX_ITEMS_PER_BATCH: u32 = 200;111112pub type CustomDataLimit = ConstU32<CUSTOM_DATA_LIMIT>;113114#[derive(115	Encode,116	Decode,117	PartialEq,118	Eq,119	PartialOrd,120	Ord,121	Clone,122	Copy,123	Debug,124	Default,125	TypeInfo,126	MaxEncodedLen,127)]128#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]129pub struct CollectionId(pub u32);130impl EncodeLike<u32> for CollectionId {}131impl EncodeLike<CollectionId> for u32 {}132133#[derive(134	Encode,135	Decode,136	PartialEq,137	Eq,138	PartialOrd,139	Ord,140	Clone,141	Copy,142	Debug,143	Default,144	TypeInfo,145	MaxEncodedLen,146)]147#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]148pub struct TokenId(pub u32);149impl EncodeLike<u32> for TokenId {}150impl EncodeLike<TokenId> for u32 {}151152impl TokenId {153	pub fn try_next(self) -> Result<TokenId, ArithmeticError> {154		self.0155			.checked_add(1)156			.ok_or(ArithmeticError::Overflow)157			.map(Self)158	}159}160161impl From<TokenId> for U256 {162	fn from(t: TokenId) -> Self {163		t.0.into()164	}165}166167impl TryFrom<U256> for TokenId {168	type Error = &'static str;169170	fn try_from(value: U256) -> Result<Self, Self::Error> {171		Ok(TokenId(value.try_into().map_err(|_| "too large token id")?))172	}173}174175#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]176#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]177pub struct TokenData<CrossAccountId> {178	pub const_data: Vec<u8>,179	pub properties: Vec<Property>,180	pub owner: Option<CrossAccountId>,181}182183pub struct OverflowError;184impl From<OverflowError> for &'static str {185	fn from(_: OverflowError) -> Self {186		"overflow occured"187	}188}189190pub type DecimalPoints = u8;191192#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]193#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]194pub enum CollectionMode {195	NFT,196	// decimal points197	Fungible(DecimalPoints),198	ReFungible,199}200201impl CollectionMode {202	pub fn id(&self) -> u8 {203		match self {204			CollectionMode::NFT => 1,205			CollectionMode::Fungible(_) => 2,206			CollectionMode::ReFungible => 3,207		}208	}209}210211pub trait SponsoringResolve<AccountId, Call> {212	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;213}214215#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]216#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]217pub enum AccessMode {218	Normal,219	AllowList,220}221impl Default for AccessMode {222	fn default() -> Self {223		Self::Normal224	}225}226227#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]228#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]229pub enum SchemaVersion {230	ImageURL,231	Unique,232}233impl Default for SchemaVersion {234	fn default() -> Self {235		Self::ImageURL236	}237}238239#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]240#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]241pub struct Ownership<AccountId> {242	pub owner: AccountId,243	pub fraction: u128,244}245246#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]247#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]248pub enum SponsorshipState<AccountId> {249	/// The fees are applied to the transaction sender250	Disabled,251	Unconfirmed(AccountId),252	/// Transactions are sponsored by specified account253	Confirmed(AccountId),254}255256impl<AccountId> SponsorshipState<AccountId> {257	pub fn sponsor(&self) -> Option<&AccountId> {258		match self {259			Self::Confirmed(sponsor) => Some(sponsor),260			_ => None,261		}262	}263264	pub fn pending_sponsor(&self) -> Option<&AccountId> {265		match self {266			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),267			_ => None,268		}269	}270271	pub fn confirmed(&self) -> bool {272		matches!(self, Self::Confirmed(_))273	}274}275276impl<T> Default for SponsorshipState<T> {277	fn default() -> Self {278		Self::Disabled279	}280}281282/// Used in storage283#[struct_versioning::versioned(version = 2, upper)]284#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]285pub struct Collection<AccountId> {286	pub owner: AccountId,287	pub mode: CollectionMode,288	pub access: AccessMode,289	pub name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,290	pub description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,291	pub token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,292	pub mint_mode: bool,293294	#[version(..2)]295	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,296297	pub schema_version: SchemaVersion,298	pub sponsorship: SponsorshipState<AccountId>,299300	#[version(..2)]301	pub limits: CollectionLimitsVersion1, // Collection private restrictions302	#[version(2.., upper(limits.into()))]303	pub limits: CollectionLimitsVersion2,304305	#[version(..2)]306	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,307308	#[version(..2)]309	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,310311	pub meta_update_permission: MetaUpdatePermission,312}313314/// Used in RPC calls315#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]316#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]317pub struct RpcCollection<AccountId> {318	pub owner: AccountId,319	pub mode: CollectionMode,320	pub access: AccessMode,321	pub name: Vec<u16>,322	pub description: Vec<u16>,323	pub token_prefix: Vec<u8>,324	pub mint_mode: bool,325	pub offchain_schema: Vec<u8>,326	pub schema_version: SchemaVersion,327	pub sponsorship: SponsorshipState<AccountId>,328	pub limits: CollectionLimits,329	pub const_on_chain_schema: Vec<u8>,330	pub meta_update_permission: MetaUpdatePermission,331	pub token_property_permissions: Vec<PropertyKeyPermission>,332	pub properties: Vec<Property>,333}334335#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]336#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]337pub enum CollectionField {338	ConstOnChainSchema,339	OffchainSchema,340}341342#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, Derivative, MaxEncodedLen)]343#[derivative(Debug, Default(bound = ""))]344pub struct CreateCollectionData<AccountId> {345	#[derivative(Default(value = "CollectionMode::NFT"))]346	pub mode: CollectionMode,347	pub access: Option<AccessMode>,348	pub name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,349	pub description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,350	pub token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,351	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,352	pub schema_version: Option<SchemaVersion>,353	pub pending_sponsor: Option<AccountId>,354	pub limits: Option<CollectionLimits>,355	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,356	pub meta_update_permission: Option<MetaUpdatePermission>,357	pub token_property_permissions: CollectionPropertiesPermissionsVec,358	pub properties: CollectionPropertiesVec,359}360361pub type CollectionPropertiesPermissionsVec =362	BoundedVec<PropertyKeyPermission, MaxPropertiesPermissionsEncodeLen>;363364pub type CollectionPropertiesVec =365	BoundedVec<Property, ConstU32<MAX_COLLECTION_PROPERTIES_ENCODE_LEN>>;366367/// All fields are wrapped in `Option`s, where None means chain default368#[struct_versioning::versioned(version = 2, upper)]369#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]370#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]371pub struct CollectionLimits {372	pub account_token_ownership_limit: Option<u32>,373	pub sponsored_data_size: Option<u32>,374375	/// FIXME should we delete this or repurpose it?376	/// None - setVariableMetadata is not sponsored377	/// Some(v) - setVariableMetadata is sponsored378	///           if there is v block between txs379	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,380	pub token_limit: Option<u32>,381382	// Timeouts for item types in passed blocks383	pub sponsor_transfer_timeout: Option<u32>,384	pub sponsor_approve_timeout: Option<u32>,385	pub owner_can_transfer: Option<bool>,386	pub owner_can_destroy: Option<bool>,387	pub transfers_enabled: Option<bool>,388389	#[version(2.., upper(None))]390	pub nesting_rule: Option<NestingRule>,391}392393impl CollectionLimits {394	pub fn account_token_ownership_limit(&self) -> u32 {395		self.account_token_ownership_limit396			.unwrap_or(ACCOUNT_TOKEN_OWNERSHIP_LIMIT)397			.min(MAX_TOKEN_OWNERSHIP)398	}399	pub fn sponsored_data_size(&self) -> u32 {400		self.sponsored_data_size401			.unwrap_or(CUSTOM_DATA_LIMIT)402			.min(CUSTOM_DATA_LIMIT)403	}404	pub fn token_limit(&self) -> u32 {405		self.token_limit406			.unwrap_or(COLLECTION_TOKEN_LIMIT)407			.min(COLLECTION_TOKEN_LIMIT)408	}409	pub fn sponsor_transfer_timeout(&self, default: u32) -> u32 {410		self.sponsor_transfer_timeout411			.unwrap_or(default)412			.min(MAX_SPONSOR_TIMEOUT)413	}414	pub fn sponsor_approve_timeout(&self) -> u32 {415		self.sponsor_approve_timeout416			.unwrap_or(SPONSOR_APPROVE_TIMEOUT)417			.min(MAX_SPONSOR_TIMEOUT)418	}419	pub fn owner_can_transfer(&self) -> bool {420		self.owner_can_transfer.unwrap_or(true)421	}422	pub fn owner_can_destroy(&self) -> bool {423		self.owner_can_destroy.unwrap_or(true)424	}425	pub fn transfers_enabled(&self) -> bool {426		self.transfers_enabled.unwrap_or(true)427	}428	pub fn sponsored_data_rate_limit(&self) -> Option<u32> {429		match self430			.sponsored_data_rate_limit431			.unwrap_or(SponsoringRateLimit::SponsoringDisabled)432		{433			SponsoringRateLimit::SponsoringDisabled => None,434			SponsoringRateLimit::Blocks(v) => Some(v.min(MAX_SPONSOR_TIMEOUT)),435		}436	}437	pub fn nesting_rule(&self) -> &NestingRule {438		static DEFAULT: NestingRule = NestingRule::Disabled;439		self.nesting_rule.as_ref().unwrap_or(&DEFAULT)440	}441}442443#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]444#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]445#[derivative(Debug)]446pub enum NestingRule {447	/// No one can nest tokens448	Disabled,449	/// Owner can nest any tokens450	Owner,451	/// Owner can nest tokens from specified collections452	OwnerRestricted(453		#[cfg_attr(feature = "serde1", serde(with = "bounded::set_serde"))]454		#[derivative(Debug(format_with = "bounded::set_debug"))]455		BoundedBTreeSet<CollectionId, ConstU32<16>>,456	),457}458459#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]460#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]461pub enum SponsoringRateLimit {462	SponsoringDisabled,463	Blocks(u32),464}465466#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]467#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]468#[derivative(Debug)]469pub struct CreateNftData {470	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]471	#[derivative(Debug(format_with = "bounded::vec_debug"))]472	pub const_data: BoundedVec<u8, CustomDataLimit>,473474	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]475	#[derivative(Debug(format_with = "bounded::vec_debug"))]476	pub properties: CollectionPropertiesVec,477}478479#[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]480#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]481pub struct CreateFungibleData {482	pub value: u128,483}484485#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]486#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]487#[derivative(Debug)]488pub struct CreateReFungibleData {489	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]490	#[derivative(Debug(format_with = "bounded::vec_debug"))]491	pub const_data: BoundedVec<u8, CustomDataLimit>,492	pub pieces: u128,493}494495#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]496#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]497pub enum MetaUpdatePermission {498	ItemOwner,499	Admin,500	None,501}502503impl Default for MetaUpdatePermission {504	fn default() -> Self {505		Self::ItemOwner506	}507}508509#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]510#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]511pub enum CreateItemData {512	NFT(CreateNftData),513	Fungible(CreateFungibleData),514	ReFungible(CreateReFungibleData),515}516517#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]518#[derivative(Debug)]519pub struct CreateNftExData<CrossAccountId> {520	#[derivative(Debug(format_with = "bounded::vec_debug"))]521	pub const_data: BoundedVec<u8, CustomDataLimit>,522	#[derivative(Debug(format_with = "bounded::vec_debug"))]523	pub properties: CollectionPropertiesVec,524	pub owner: CrossAccountId,525}526527#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]528#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]529pub struct CreateRefungibleExData<CrossAccountId> {530	#[derivative(Debug(format_with = "bounded::vec_debug"))]531	pub const_data: BoundedVec<u8, CustomDataLimit>,532	#[derivative(Debug(format_with = "bounded::map_debug"))]533	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,534}535536#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]537#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]538pub enum CreateItemExData<CrossAccountId> {539	NFT(540		#[derivative(Debug(format_with = "bounded::vec_debug"))]541		BoundedVec<CreateNftExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,542	),543	Fungible(544		#[derivative(Debug(format_with = "bounded::map_debug"))]545		BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,546	),547	/// Many tokens, each may have only one owner548	RefungibleMultipleItems(549		#[derivative(Debug(format_with = "bounded::vec_debug"))]550		BoundedVec<CreateRefungibleExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,551	),552	/// Single token, which may have many owners553	RefungibleMultipleOwners(CreateRefungibleExData<CrossAccountId>),554}555556impl CreateItemData {557	pub fn data_size(&self) -> usize {558		match self {559			CreateItemData::NFT(data) => data.const_data.len(),560			CreateItemData::ReFungible(data) => data.const_data.len(),561			_ => 0,562		}563	}564}565566impl From<CreateNftData> for CreateItemData {567	fn from(item: CreateNftData) -> Self {568		CreateItemData::NFT(item)569	}570}571572impl From<CreateReFungibleData> for CreateItemData {573	fn from(item: CreateReFungibleData) -> Self {574		CreateItemData::ReFungible(item)575	}576}577578impl From<CreateFungibleData> for CreateItemData {579	fn from(item: CreateFungibleData) -> Self {580		CreateItemData::Fungible(item)581	}582}583584#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]585#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]586pub struct CollectionStats {587	pub created: u32,588	pub destroyed: u32,589	pub alive: u32,590}591592#[derive(Encode, Decode, PartialEq, Clone, Debug)]593pub struct PhantomType<T>(core::marker::PhantomData<T>);594595impl<T: TypeInfo + 'static> TypeInfo for PhantomType<T> {596	type Identity = PhantomType<T>;597598	fn type_info() -> scale_info::Type {599		use scale_info::{600			Type, Path,601			build::{FieldsBuilder, UnnamedFields},602			type_params,603		};604		Type::builder()605			.path(Path::new("up_data_structs", "PhantomType"))606			.type_params(type_params!(T))607			.composite(<FieldsBuilder<UnnamedFields>>::default().field(|b| b.ty::<[T; 0]>()))608	}609}610impl<T> MaxEncodedLen for PhantomType<T> {611	fn max_encoded_len() -> usize {612		0613	}614}615616pub type PropertyKey = BoundedVec<u8, ConstU32<MAX_PROPERTY_KEY_LENGTH>>;617pub type PropertyValue = BoundedVec<u8, ConstU32<MAX_PROPERTY_VALUE_LENGTH>>;618619#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]620#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]621pub struct PropertyPermission {622	pub mutable: bool,623	pub collection_admin: bool,624	pub token_owner: bool,625}626627impl PropertyPermission {628	pub fn none() -> Self {629		Self {630			mutable: true,631			collection_admin: false,632			token_owner: false,633		}634	}635}636637#[derive(Encode, Decode, Debug, TypeInfo, Clone, PartialEq, MaxEncodedLen)]638#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]639pub struct Property {640	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]641	pub key: PropertyKey,642643	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]644	pub value: PropertyValue,645}646647#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]648#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]649pub struct PropertyKeyPermission {650	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]651	pub key: PropertyKey,652653	pub permission: PropertyPermission,654}655656pub enum PropertiesError {657	NoSpaceForProperty,658	PropertyLimitReached,659	InvalidCharacterInPropertyKey,660	EmptyPropertyKey,661}662663pub trait TrySet: Sized {664	type Value;665666	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError>;667668	fn try_set_from_iter<I>(&mut self, iter: I) -> Result<(), PropertiesError>669	where670		I: Iterator<Item = (PropertyKey, Self::Value)>,671	{672		for (key, value) in iter {673			self.try_set(key, value)?;674		}675676		Ok(())677	}678}679680#[derive(Encode, Decode, TypeInfo, Derivative, Clone, PartialEq, MaxEncodedLen)]681#[derivative(Default(bound = ""))]682pub struct PropertiesMap<Value>(683	BoundedBTreeMap<PropertyKey, Value, ConstU32<MAX_PROPERTIES_PER_ITEM>>,684);685686impl<Value> PropertiesMap<Value> {687	pub fn new() -> Self {688		Self(BoundedBTreeMap::new())689	}690691	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<Value>, PropertiesError> {692		Self::check_property_key(key)?;693694		Ok(self.0.remove(key))695	}696697	pub fn get(&self, key: &PropertyKey) -> Option<&Value> {698		self.0.get(key)699	}700701	pub fn iter(&self) -> impl Iterator<Item = (&PropertyKey, &Value)> {702		self.0.iter()703	}704705	fn check_property_key(key: &PropertyKey) -> Result<(), PropertiesError> {706		if key.is_empty() {707			return Err(PropertiesError::EmptyPropertyKey);708		}709710		for byte in key.as_slice().iter() {711			match char::from_u32(*byte as u32) {712				Some(ch)713					if ch.is_ascii_alphanumeric()714					|| ch == '_'715					|| ch == '-' => { /* OK */ },716				_ => return Err(PropertiesError::InvalidCharacterInPropertyKey)717			}718		}719720		Ok(())721	}722}723724impl<Value> TrySet for PropertiesMap<Value> {725	type Value = Value;726727	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError> {728		Self::check_property_key(&key)?;729730		self.0731			.try_insert(key, value)732			.map_err(|_| PropertiesError::PropertyLimitReached)?;733734		Ok(())735	}736}737738pub type PropertiesPermissionMap = PropertiesMap<PropertyPermission>;739740#[derive(Encode, Decode, TypeInfo, Clone, PartialEq, MaxEncodedLen)]741pub struct Properties {742	map: PropertiesMap<PropertyValue>,743	consumed_space: u32,744	space_limit: u32,745}746747impl Properties {748	pub fn new(space_limit: u32) -> Self {749		Self {750			map: PropertiesMap::new(),751			consumed_space: 0,752			space_limit,753		}754	}755756	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<PropertyValue>, PropertiesError> {757		let value = self.map.remove(key)?;758759		if let Some(ref value) = value {760			let value_len = value.len() as u32;761			self.consumed_space -= value_len;762		}763764		Ok(value)765	}766767	pub fn get(&self, key: &PropertyKey) -> Option<&PropertyValue> {768		self.map.get(key)769	}770771	pub fn iter(&self) -> impl Iterator<Item = (&PropertyKey, &PropertyValue)> {772		self.map.iter()773	}774}775776impl TrySet for Properties {777	type Value = PropertyValue;778779	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError> {780		let value_len = value.len();781782		if self.consumed_space as usize + value_len > self.space_limit as usize {783			return Err(PropertiesError::NoSpaceForProperty);784		}785786		self.map.try_set(key, value)?;787788		self.consumed_space += value_len as u32;789790		Ok(())791	}792}793794pub struct CollectionProperties;795796impl Get<Properties> for CollectionProperties {797	fn get() -> Properties {798		Properties::new(MAX_COLLECTION_PROPERTIES_SIZE)799	}800}801802pub struct TokenProperties;803804impl Get<Properties> for TokenProperties {805	fn get() -> Properties {806		Properties::new(MAX_TOKEN_PROPERTIES_SIZE)807	}808}