12345678import {readFile} from 'fs/promises';910import Web3 from 'web3';11import {WebsocketProvider} from 'web3-core';12import {Contract} from 'web3-eth-contract';1314import * as solc from 'solc';1516import {evmToAddress} from '@polkadot/util-crypto';17import {IKeyringPair} from '@polkadot/types/types';1819import {DevUniqueHelper} from '../../../util/playgrounds/unique.dev';2021import {ContractImports, CompiledContract} from './types';222324import collectionHelpersAbi from '../../collectionHelpersAbi.json';25import fungibleAbi from '../../fungibleAbi.json';26import nonFungibleAbi from '../../nonFungibleAbi.json';27import refungibleAbi from '../../reFungibleAbi.json';28import refungibleTokenAbi from '../../reFungibleTokenAbi.json';29import contractHelpersAbi from './../contractHelpersAbi.json';30import {TEthereumAccount} from '../../../util/playgrounds/types';3132class EthGroupBase {33 helper: EthUniqueHelper;3435 constructor(helper: EthUniqueHelper) {36 this.helper = helper;37 }38}394041class ContractGroup extends EthGroupBase {42 async findImports(imports?: ContractImports[]){43 if(!imports) return function(path: string) {44 return {error: `File not found: ${path}`};45 };46 47 const knownImports = {} as {[key: string]: string};48 for(const imp of imports) {49 knownImports[imp.solPath] = (await readFile(imp.fsPath)).toString();50 }51 52 return function(path: string) {53 if(path in knownImports) return {contents: knownImports[path]};54 return {error: `File not found: ${path}`};55 };56 }5758 async compile(name: string, src: string, imports?: ContractImports[]): Promise<CompiledContract> {59 const out = JSON.parse(solc.compile(JSON.stringify({60 language: 'Solidity',61 sources: {62 [`${name}.sol`]: {63 content: src,64 },65 },66 settings: {67 outputSelection: {68 '*': {69 '*': ['*'],70 },71 },72 },73 }), {import: await this.findImports(imports)})).contracts[`${name}.sol`][name];74 75 return {76 abi: out.abi,77 object: '0x' + out.evm.bytecode.object,78 };79 }8081 async deployByCode(signer: string, name: string, src: string, imports?: ContractImports[]): Promise<Contract> {82 const compiledContract = await this.compile(name, src, imports);83 return this.deployByAbi(signer, compiledContract.abi, compiledContract.object);84 }8586 async deployByAbi(signer: string, abi: any, object: string): Promise<Contract> {87 const web3 = this.helper.getWeb3();88 const contract = new web3.eth.Contract(abi, undefined, {89 data: object,90 from: signer,91 gas: this.helper.eth.DEFAULT_GAS,92 });93 return await contract.deploy({data: object}).send({from: signer});94 }9596}97 98class NativeContractGroup extends EthGroupBase {99100 contractHelpers(caller: string): Contract {101 const web3 = this.helper.getWeb3();102 return new web3.eth.Contract(contractHelpersAbi as any, '0x842899ECF380553E8a4de75bF534cdf6fBF64049', {from: caller, gas: this.helper.eth.DEFAULT_GAS});103 }104105 collectionHelpers(caller: string) {106 const web3 = this.helper.getWeb3();107 return new web3.eth.Contract(collectionHelpersAbi as any, '0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f', {from: caller, gas: this.helper.eth.DEFAULT_GAS});108 }109110 collection(address: string, mode: 'nft' | 'rft' | 'ft', caller?: string): Contract {111 const abi = {112 'nft': nonFungibleAbi,113 'rft': refungibleAbi,114 'ft': fungibleAbi,115 }[mode];116 const web3 = this.helper.getWeb3();117 return new web3.eth.Contract(abi as any, address, {gas: this.helper.eth.DEFAULT_GAS, ...(caller ? {from: caller} : {})});118 }119120 collectionById(collectionId: number, mode: 'nft' | 'rft' | 'ft', caller?: string): Contract {121 return this.collection(this.helper.ethAddress.fromCollectionId(collectionId), mode, caller);122 }123124 rftToken(address: string, caller?: string): Contract {125 const web3 = this.helper.getWeb3();126 return new web3.eth.Contract(refungibleTokenAbi as any, address, {gas: this.helper.eth.DEFAULT_GAS, ...(caller ? {from: caller} : {})});127 }128129 rftTokenById(collectionId: number, tokenId: number, caller?: string): Contract {130 return this.rftToken(this.helper.ethAddress.fromTokenId(collectionId, tokenId), caller);131 }132}133134 135class EthGroup extends EthGroupBase {136 DEFAULT_GAS = 2_500_000;137138 createAccount() {139 const web3 = this.helper.getWeb3();140 const account = web3.eth.accounts.create();141 web3.eth.accounts.wallet.add(account.privateKey);142 return account.address;143 }144145 async createAccountWithBalance(donor: IKeyringPair, amount=1000n) {146 const account = this.createAccount();147 await this.transferBalanceFromSubstrate(donor, account, amount);148 149 return account;150 }151152 async transferBalanceFromSubstrate(donor: IKeyringPair, recepient: string, amount=1000n, inTokens=true) {153 return await this.helper.balance.transferToSubstrate(donor, evmToAddress(recepient), amount * (inTokens ? this.helper.balance.getOneTokenNominal() : 1n));154 }155156 async sendEVM(signer: IKeyringPair, contractAddress: string, abi: string, value: string, gasLimit?: number) {157 if(!gasLimit) gasLimit = this.DEFAULT_GAS;158 const web3 = this.helper.getWeb3();159 const gasPrice = await web3.eth.getGasPrice();160 161 await this.helper.executeExtrinsic(162 signer,163 'api.tx.evm.call', [this.helper.address.substrateToEth(signer.address), contractAddress, abi, value, gasLimit, gasPrice, null, null, []],164 true,165 );166 }167 168 async callEVM(signer: TEthereumAccount, contractAddress: string, abi: string) {169 return await this.helper.callRpc('api.rpc.eth.call', [{from: signer, to: contractAddress, data: abi}]);170 }171172 async createNonfungibleCollection(signer: string, name: string, description: string, tokenPrefix: string): Promise<{collectionId: number, collectionAddress: string}> {173 const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);174 175 const result = await collectionHelper.methods.createNonfungibleCollection(name, description, tokenPrefix).send();176177 const collectionAddress = this.helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);178 const collectionId = this.helper.ethAddress.extractCollectionId(collectionAddress);179180 return {collectionId, collectionAddress};181 }182183 async createRefungibleCollection(signer: string, name: string, description: string, tokenPrefix: string): Promise<{collectionId: number, collectionAddress: string}> {184 const collectionHelper = this.helper.ethNativeContract.collectionHelpers(signer);185 186 const result = await collectionHelper.methods.createRFTCollection(name, description, tokenPrefix).send();187188 const collectionAddress = this.helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);189 const collectionId = this.helper.ethAddress.extractCollectionId(collectionAddress);190191 return {collectionId, collectionAddress};192 }193194 async deployCollectorContract(signer: string): Promise<Contract> {195 return await this.helper.ethContract.deployByCode(signer, 'Collector', `196 // SPDX-License-Identifier: UNLICENSED197 pragma solidity ^0.8.6;198199 contract Collector {200 uint256 collected;201 fallback() external payable {202 giveMoney();203 }204 function giveMoney() public payable {205 collected += msg.value;206 }207 function getCollected() public view returns (uint256) {208 return collected;209 }210 function getUnaccounted() public view returns (uint256) {211 return address(this).balance - collected;212 }213214 function withdraw(address payable target) public {215 target.transfer(collected);216 collected = 0;217 }218 }219 `);220 }221222 async deployFlipper(signer: string): Promise<Contract> {223 return await this.helper.ethContract.deployByCode(signer, 'Flipper', `224 // SPDX-License-Identifier: UNLICENSED225 pragma solidity ^0.8.6;226227 contract Flipper {228 bool value = false;229 function flip() public {230 value = !value;231 }232 function getValue() public view returns (bool) {233 return value;234 }235 }236 `);237 }238239 async recordCallFee(user: string, call: () => Promise<any>): Promise<bigint> {240 const before = await this.helper.balance.getEthereum(user);241 await call();242 243 await this.helper.wait.newBlocks(1);244 const after = await this.helper.balance.getEthereum(user);245246 return before - after;247 }248} 249 250class EthAddressGroup extends EthGroupBase {251 extractCollectionId(address: string): number {252 if (!(address.length === 42 || address.length === 40)) throw new Error('address wrong format');253 return parseInt(address.substr(address.length - 8), 16);254 }255256 fromCollectionId(collectionId: number): string {257 if (collectionId >= 0xffffffff || collectionId < 0) throw new Error('collectionId overflow');258 return Web3.utils.toChecksumAddress(`0x17c4e6453cc49aaaaeaca894e6d9683e${collectionId.toString(16).padStart(8, '0')}`);259 }260261 extractTokenId(address: string): {collectionId: number, tokenId: number} {262 if (!address.startsWith('0x'))263 throw 'address not starts with "0x"';264 if (address.length > 42)265 throw 'address length is more than 20 bytes';266 return {267 collectionId: Number('0x' + address.substring(address.length - 16, address.length - 8)),268 tokenId: Number('0x' + address.substring(address.length - 8)),269 };270 }271272 fromTokenId(collectionId: number, tokenId: number): string {273 return this.helper.util.getTokenAddress({collectionId, tokenId});274 }275276 normalizeAddress(address: string): string {277 return '0x' + address.substring(address.length - 40);278 }279} 280 281282export class EthUniqueHelper extends DevUniqueHelper {283 web3: Web3 | null = null;284 web3Provider: WebsocketProvider | null = null;285286 eth: EthGroup;287 ethAddress: EthAddressGroup;288 ethNativeContract: NativeContractGroup;289 ethContract: ContractGroup;290291 constructor(logger: { log: (msg: any, level: any) => void, level: any }) {292 super(logger);293 this.eth = new EthGroup(this);294 this.ethAddress = new EthAddressGroup(this);295 this.ethNativeContract = new NativeContractGroup(this);296 this.ethContract = new ContractGroup(this);297 }298299 getWeb3(): Web3 {300 if(this.web3 === null) throw Error('Web3 not connected');301 return this.web3;302 }303304 async connectWeb3(wsEndpoint: string) {305 if(this.web3 !== null) return;306 this.web3Provider = new Web3.providers.WebsocketProvider(wsEndpoint);307 this.web3 = new Web3(this.web3Provider);308 }309310 async disconnectWeb3() {311 if(this.web3 === null) return;312 this.web3Provider?.connection.close();313 this.web3 = null;314 }315}316