git.delta.rocks / unique-network / refs/commits / 3a27627da776

1#![cfg_attr(not(feature = "std"), no_std)]23use codec::{Decode, Encode};4/// A FRAME pallet template with necessary imports56/// Feel free to remove or edit this file as needed.7/// If you change the name of this file, make sure to update its references in runtime/src/lib.rs8/// If you remove this file, you can remove those references910/// For more guidance on Substrate FRAME, see the example pallet11/// https://github.com/paritytech/substrate/blob/master/frame/example/src/lib.rs12use frame_support::{decl_event, decl_module, decl_storage, dispatch::DispatchResult, ensure};13use frame_system::{self as system, ensure_signed};14use sp_runtime::sp_std::prelude::Vec;1516#[cfg(test)]17mod mock;1819#[cfg(test)]20mod tests;2122#[derive(Encode, Decode, Default, Clone, PartialEq)]23#[cfg_attr(feature = "std", derive(Debug))]24pub struct CollectionType<AccountId> {25    pub owner: AccountId,26    pub next_item_id: u64,27    pub custom_data_size: u32,28}2930#[derive(Encode, Decode, Default, Clone, PartialEq)]31#[cfg_attr(feature = "std", derive(Debug))]32pub struct CollectionAdminsType<AccountId> {33    pub admin: AccountId,34    pub collection_id: u64,35}3637#[derive(Encode, Decode, Default, Clone, PartialEq)]38#[cfg_attr(feature = "std", derive(Debug))]39pub struct NftItemType<AccountId> {40    pub collection: u64,41    pub owner: AccountId,42    pub data: Vec<u8>,43}4445/// The pallet's configuration trait.46pub trait Trait: system::Trait {47    // Add other types and constants required to configure this pallet.4849    /// The overarching event type.50    type Event: From<Event<Self>> + Into<<Self as system::Trait>::Event>;51}5253// This pallet's storage items.54decl_storage! {55    // It is important to update your storage name so that your pallet's56    // storage items are isolated from other pallets.57    trait Store for Module<T: Trait> as Nft {5859        /// Next available collection ID60        pub NextCollectionID get(fn next_collection_id): u64;6162        /// Collection map63        pub Collection get(collection): map hasher(identity) u64 => CollectionType<T::AccountId>;6465        /// Admins map (collection)66        pub AdminList get(admin_list_collection): map hasher(identity) u64 => Vec<T::AccountId>;6768        /// Balance owner per collection map69        pub Balance get(balance_count): map hasher(blake2_128_concat) (u64, T::AccountId) => u64;7071        pub ApprovedList get(approved): map hasher(blake2_128_concat) (u64, u64) => Vec<T::AccountId>;72        pub ItemList get(item_id): map hasher(blake2_128_concat) (u64, u64) => NftItemType<T::AccountId>;73        pub ItemListIndex get(item_index): map hasher(blake2_128_concat) u64 => u64;74    }75}7677// The pallet's events78decl_event!(79    pub enum Event<T>80    where81        AccountId = <T as system::Trait>::AccountId,82    {83        Created(u32, AccountId),84    }85);8687// The pallet's dispatchable functions.88decl_module! {89    /// The module declaration.90    pub struct Module<T: Trait> for enum Call where origin: T::Origin {9192        // Initializing events93        // this is needed only if you are using events in your pallet94        fn deposit_event() = default;9596        // Initializing events97        // this is needed only if you are using events in your module98        // fn deposit_event<T>() = default;99100        // Create collection of NFT with given parameters101        //102        // @param customDataSz size of custom data in each collection item103        // returns collection ID104105        // Create collection of NFT with given parameters106        //107        // @param customDataSz size of custom data in each collection item108        // returns collection ID109        #[weight = frame_support::weights::SimpleDispatchInfo::default()]110        pub fn create_collection(origin, custom_data_sz: u32) -> DispatchResult {111            // Anyone can create a collection112            let who = ensure_signed(origin)?;113114            // Generate next collection ID115            let next_id = NextCollectionID::get()116                .checked_add(1)117                .expect("collection id error");118119            NextCollectionID::put(next_id);120121            // Create new collection122            let new_collection = CollectionType {123                owner: who,124                next_item_id: next_id,125                custom_data_size: custom_data_sz,126            };127128            // Add new collection to map129            <Collection<T>>::insert(next_id, new_collection);130131            Ok(())132        }133134        #[weight = frame_support::weights::SimpleDispatchInfo::default()]135        pub fn destroy_collection(origin, collection_id: u64) -> DispatchResult {136137            let sender = ensure_signed(origin)?;138            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");139140            let owner = <Collection<T>>::get(collection_id).owner;141            ensure!(sender == owner, "You do not own this collection");142            <Collection<T>>::remove(collection_id);143144            Ok(())145        }146147        #[weight = frame_support::weights::SimpleDispatchInfo::default()]148        pub fn change_collection_owner(origin, collection_id: u64, new_owner: T::AccountId) -> DispatchResult {149150            let sender = ensure_signed(origin)?;151            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");152153            let mut target_collection = <Collection<T>>::get(collection_id);154            ensure!(sender == target_collection.owner, "You do not own this collection");155156            target_collection.owner = new_owner;157            <Collection<T>>::insert(collection_id, target_collection);158159            Ok(())160        }161162        #[weight = frame_support::weights::SimpleDispatchInfo::default()]163        pub fn add_collection_admin(origin, collection_id: u64, new_admin_id: T::AccountId) -> DispatchResult {164165            let sender = ensure_signed(origin)?;166            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");167168            let target_collection = <Collection<T>>::get(collection_id);169            let is_owner = sender == target_collection.owner;170171            let no_perm_mes = "You do not have permissions to modify this collection";172            let exists = <AdminList<T>>::contains_key(collection_id);173174            if !is_owner175            {176                 ensure!(exists, no_perm_mes);177                 ensure!(<AdminList<T>>::get(collection_id).contains(&sender), no_perm_mes);178            }179180            let mut admin_arr: Vec<T::AccountId> = Vec::new();181            if exists182            {183                admin_arr = <AdminList<T>>::get(collection_id);184                ensure!(!admin_arr.contains(&new_admin_id), "Account already has admin role");185            }186187            admin_arr.push(new_admin_id);188            <AdminList<T>>::insert(collection_id, admin_arr);189190            Ok(())191        }192193        #[weight = frame_support::weights::SimpleDispatchInfo::default()]194        pub fn remove_collection_admin(origin, collection_id: u64, account_id: T::AccountId) -> DispatchResult {195196            let sender = ensure_signed(origin)?;197            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");198199            let target_collection = <Collection<T>>::get(collection_id);200            let is_owner = sender == target_collection.owner;201202            let no_perm_mes = "You do not have permissions to modify this collection";203            let exists = <AdminList<T>>::contains_key(collection_id);204205            if !is_owner206            {207                ensure!(exists, no_perm_mes);208                ensure!(<AdminList<T>>::get(collection_id).contains(&sender), no_perm_mes);209            }210211            if exists212            {213                let mut admin_arr = <AdminList<T>>::get(collection_id);214                admin_arr.retain(|i| *i != account_id);215                <AdminList<T>>::insert(collection_id, admin_arr);216            }217218            Ok(())219        }220221        #[weight = frame_support::weights::SimpleDispatchInfo::default()]222        pub fn create_item(origin, collection_id: u64, properties: Vec<u8>) -> DispatchResult {223224            let sender = ensure_signed(origin)?;225            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");226227            let target_collection = <Collection<T>>::get(collection_id);228            ensure!(target_collection.custom_data_size >= properties.len() as u32, "Size of item is too large");229            let is_owner = sender == target_collection.owner;230231            let no_perm_mes = "You do not have permissions to modify this collection";232            let exists = <AdminList<T>>::contains_key(collection_id);233234            if !is_owner235            {236                ensure!(exists, no_perm_mes);237                ensure!(<AdminList<T>>::get(collection_id).contains(&sender), no_perm_mes);238            }239240            let new_balance = <Balance<T>>::get((collection_id, sender.clone())) + 1;241            <Balance<T>>::insert((collection_id, sender.clone()), new_balance);242243            // Create new item244            let new_item = NftItemType {245                collection: collection_id,246                owner: sender,247                data: properties,248            };249250            let current_index = <ItemListIndex>::get(collection_id) + 1;251            <ItemListIndex>::insert(collection_id, current_index);252            <ItemList<T>>::insert((collection_id, current_index), new_item);253254            Ok(())255        }256257        #[weight = frame_support::weights::SimpleDispatchInfo::default()]258        pub fn burn_item(origin, collection_id: u64, item_id: u64) -> DispatchResult {259260            let sender = ensure_signed(origin)?;261            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");262263            let target_collection = <Collection<T>>::get(collection_id);264            let is_owner = sender == target_collection.owner;265266            ensure!(<ItemList<T>>::contains_key((collection_id, item_id)), "Item does not exists");267            let item = <ItemList<T>>::get((collection_id, item_id));268269            if !is_owner270            {271                // check if item owner272                if item.owner != sender273                {274                    let no_perm_mes = "You do not have permissions to modify this collection";275276                    ensure!(<AdminList<T>>::contains_key(collection_id), no_perm_mes);277                    ensure!(<AdminList<T>>::get(collection_id).contains(&sender), no_perm_mes);278                }279            }280            <ItemList<T>>::remove((collection_id, item_id));281282            // update balance283            let new_balance = <Balance<T>>::get((collection_id, item.owner.clone())) - 1;284            <Balance<T>>::insert((collection_id, item.owner.clone()), new_balance);285286            Ok(())287        }288289        #[weight = frame_support::weights::SimpleDispatchInfo::default()]290        pub fn transfer(origin, collection_id: u64, item_id: u64, new_owner: T::AccountId) -> DispatchResult {291292            let sender = ensure_signed(origin)?;293            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");294295            let target_collection = <Collection<T>>::get(collection_id);296            let is_owner = sender == target_collection.owner;297298            ensure!(<ItemList<T>>::contains_key((collection_id, item_id)), "Item does not exists");299            let mut item = <ItemList<T>>::get((collection_id, item_id));300301            if !is_owner302            {303                // check if item owner304                if item.owner != sender305                {306                    let no_perm_mes = "You do not have permissions to modify this collection";307308                    ensure!(<AdminList<T>>::contains_key(collection_id), no_perm_mes);309                    ensure!(<AdminList<T>>::get(collection_id).contains(&sender), no_perm_mes);310                }311            }312            <ItemList<T>>::remove((collection_id, item_id));313314            // update balance315            let balance_old_owner = <Balance<T>>::get((collection_id, item.owner.clone())) - 1;316            <Balance<T>>::insert((collection_id, item.owner.clone()), balance_old_owner);317318            let balance_new_owner = <Balance<T>>::get((collection_id, new_owner.clone())) + 1;319            <Balance<T>>::insert((collection_id, new_owner.clone()), balance_new_owner);320321            // change owner322            item.owner = new_owner;323            <ItemList<T>>::insert((collection_id, item_id), item);324325            // reset approved list326            let itm: Vec<T::AccountId> = Vec::new();327            <ApprovedList<T>>::insert((collection_id, item_id), itm);328329            Ok(())330        }331332        #[weight = frame_support::weights::SimpleDispatchInfo::default()]333        pub fn approve(origin, approved: T::AccountId, collection_id: u64, item_id: u64) -> DispatchResult {334335            let sender = ensure_signed(origin)?;336            ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");337338            let target_collection = <Collection<T>>::get(collection_id);339            let is_owner = sender == target_collection.owner;340341            ensure!(<ItemList<T>>::contains_key((collection_id, item_id)), "Item does not exists");342            let item = <ItemList<T>>::get((collection_id, item_id));343344            if !is_owner345            {346                // check if item owner347                if item.owner != sender348                {349                    let no_perm_mes = "You do not have permissions to modify this collection";350351                    ensure!(<AdminList<T>>::contains_key(collection_id), no_perm_mes);352                    ensure!(<AdminList<T>>::get(collection_id).contains(&sender), no_perm_mes);353                }354            }355356            let list_exists = <ApprovedList<T>>::contains_key((collection_id, item_id));357            if list_exists {358359                let mut list = <ApprovedList<T>>::get((collection_id, item_id));360                let item_contains = list.contains(&approved.clone());361362                if !item_contains {363                    list.push(approved.clone());364                }365            } else {366367                let mut itm = Vec::new();368                itm.push(approved.clone());369                <ApprovedList<T>>::insert((collection_id, item_id), itm);370            }371372            Ok(())373        }374375        #[weight = frame_support::weights::SimpleDispatchInfo::default()]376        pub fn transfer_from(origin, collection_id: u64, item_id: u64, new_owner: T::AccountId) -> DispatchResult {377378            let no_perm_mes = "You do not have permissions to modify this collection";379            ensure!(<ApprovedList<T>>::contains_key((collection_id, item_id)), no_perm_mes);380            let list_itm = <ApprovedList<T>>::get((collection_id, item_id));381            ensure!(list_itm.contains(&new_owner.clone()), no_perm_mes);382383            Self::transfer(origin, collection_id, item_id, new_owner)?;384385            Ok(())386        }387    }388}