1use core::marker::PhantomData;23use frame_support::{dispatch::DispatchResultWithPostInfo, ensure, fail, weights::Weight};4use nft_data_structs::TokenId;5use pallet_common::{CommonCollectionOperations, CommonWeightInfo, with_weight};6use sp_runtime::ArithmeticError;7use sp_std::{vec::Vec, vec};89use crate::{10 Allowance, Balance, Config, Error, FungibleHandle, Pallet, SelfWeightOf, weights::WeightInfo,11};1213pub struct CommonWeights<T: Config>(PhantomData<T>);14impl<T: Config> CommonWeightInfo for CommonWeights<T> {15 fn create_item() -> Weight {16 <SelfWeightOf<T>>::create_item()17 }1819 fn create_multiple_items(_amount: u32) -> Weight {20 Self::create_item()21 }2223 fn burn_item() -> Weight {24 <SelfWeightOf<T>>::burn_item()25 }2627 fn transfer() -> Weight {28 <SelfWeightOf<T>>::transfer()29 }3031 fn approve() -> Weight {32 <SelfWeightOf<T>>::approve()33 }3435 fn transfer_from() -> Weight {36 <SelfWeightOf<T>>::transfer_from()37 }3839 fn burn_from() -> Weight {40 <SelfWeightOf<T>>::burn_from()41 }4243 fn set_variable_metadata(_bytes: u32) -> Weight {44 45 046 }47}4849impl<T: Config> CommonCollectionOperations<T> for FungibleHandle<T> {50 fn create_item(51 &self,52 sender: T::CrossAccountId,53 to: T::CrossAccountId,54 data: nft_data_structs::CreateItemData,55 ) -> DispatchResultWithPostInfo {56 match data {57 nft_data_structs::CreateItemData::Fungible(data) => with_weight(58 <Pallet<T>>::create_item(self, &sender, (to, data.value)),59 <CommonWeights<T>>::create_item(),60 ),61 _ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),62 }63 }6465 fn create_multiple_items(66 &self,67 sender: T::CrossAccountId,68 to: T::CrossAccountId,69 data: Vec<nft_data_structs::CreateItemData>,70 ) -> DispatchResultWithPostInfo {71 let mut sum: u128 = 0;72 for data in data {73 match data {74 nft_data_structs::CreateItemData::Fungible(data) => {75 sum = sum76 .checked_add(data.value)77 .ok_or(ArithmeticError::Overflow)?;78 }79 _ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),80 }81 }8283 with_weight(84 <Pallet<T>>::create_item(self, &sender, (to, sum)),85 <CommonWeights<T>>::create_item(),86 )87 }8889 fn burn_item(90 &self,91 sender: T::CrossAccountId,92 token: TokenId,93 amount: u128,94 ) -> DispatchResultWithPostInfo {95 ensure!(96 token == TokenId::default(),97 <Error<T>>::FungibleItemsHaveNoId98 );99100 with_weight(101 <Pallet<T>>::burn(self, &sender, amount),102 <CommonWeights<T>>::burn_item(),103 )104 }105106 fn transfer(107 &self,108 from: T::CrossAccountId,109 to: T::CrossAccountId,110 token: TokenId,111 amount: u128,112 ) -> DispatchResultWithPostInfo {113 ensure!(114 token == TokenId::default(),115 <Error<T>>::FungibleItemsHaveNoId116 );117118 with_weight(119 <Pallet<T>>::transfer(&self, &from, &to, amount),120 <CommonWeights<T>>::transfer(),121 )122 }123124 fn approve(125 &self,126 sender: T::CrossAccountId,127 spender: T::CrossAccountId,128 token: TokenId,129 amount: u128,130 ) -> DispatchResultWithPostInfo {131 ensure!(132 token == TokenId::default(),133 <Error<T>>::FungibleItemsHaveNoId134 );135136 with_weight(137 <Pallet<T>>::set_allowance(&self, &sender, &spender, amount),138 <CommonWeights<T>>::approve(),139 )140 }141142 fn transfer_from(143 &self,144 sender: T::CrossAccountId,145 from: T::CrossAccountId,146 to: T::CrossAccountId,147 token: TokenId,148 amount: u128,149 ) -> DispatchResultWithPostInfo {150 ensure!(151 token == TokenId::default(),152 <Error<T>>::FungibleItemsHaveNoId153 );154155 with_weight(156 <Pallet<T>>::transfer_from(&self, &sender, &from, &to, amount),157 <CommonWeights<T>>::transfer_from(),158 )159 }160161 fn burn_from(162 &self,163 sender: T::CrossAccountId,164 from: T::CrossAccountId,165 token: TokenId,166 amount: u128,167 ) -> DispatchResultWithPostInfo {168 ensure!(169 token == TokenId::default(),170 <Error<T>>::FungibleItemsHaveNoId171 );172173 with_weight(174 <Pallet<T>>::burn_from(&self, &sender, &from, amount),175 <CommonWeights<T>>::burn_from(),176 )177 }178179 fn set_variable_metadata(180 &self,181 _sender: T::CrossAccountId,182 _token: TokenId,183 _data: Vec<u8>,184 ) -> DispatchResultWithPostInfo {185 fail!(<Error<T>>::FungibleItemsHaveData)186 }187188 fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId> {189 if <Balance<T>>::get((self.id, account)) != 0 {190 vec![TokenId::default()]191 } else {192 vec![]193 }194 }195196 fn token_exists(&self, token: TokenId) -> bool {197 token == TokenId::default()198 }199200 fn last_token_id(&self) -> TokenId {201 TokenId::default()202 }203204 fn token_owner(&self, _token: TokenId) -> T::CrossAccountId {205 T::CrossAccountId::default()206 }207 fn const_metadata(&self, _token: TokenId) -> Vec<u8> {208 Vec::new()209 }210 fn variable_metadata(&self, _token: TokenId) -> Vec<u8> {211 Vec::new()212 }213214 fn collection_tokens(&self) -> u32 {215 1216 }217218 fn account_balance(&self, account: T::CrossAccountId) -> u32 {219 if <Balance<T>>::get((self.id, account)) != 0 {220 1221 } else {222 0223 }224 }225226 fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128 {227 if token != TokenId::default() {228 return 0;229 }230 <Balance<T>>::get((self.id, account))231 }232233 fn allowance(234 &self,235 sender: T::CrossAccountId,236 spender: T::CrossAccountId,237 token: TokenId,238 ) -> u128 {239 if token != TokenId::default() {240 return 0;241 }242 <Allowance<T>>::get((self.id, sender, spender))243 }244}