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import { TransactionDecoder } from './transaction_decoder';
import { getContractAddressesForNetworkOrThrow, NetworkId } from '@0x/contract-addresses';
import * as ContractArtifacts from '@0x/contract-artifacts';
import { SimpleContractArtifact } from '@0x/types';
import { AbiDefinition, ContractAbi } from 'ethereum-types';
import { TransactionData, DeployedContractInfo, DeployedContractInfoByName, TransactionProperties } from './types';
import * as _ from 'lodash';
export class ZeroExTransactionDecoder extends TransactionDecoder {
private readonly _deployedContractInfoByName = {} as DeployedContractInfoByName;
private static _instance: ZeroExTransactionDecoder;
private static getInstance(): ZeroExTransactionDecoder {
if (!ZeroExTransactionDecoder._instance) {
ZeroExTransactionDecoder._instance = new ZeroExTransactionDecoder();
}
return ZeroExTransactionDecoder._instance;
}
private constructor() {
super();
// Load addresses by contract name
_.each(NetworkId, (networkId: any) => {
if (typeof networkId !== 'number') return;
const networkIdAsNumber = networkId as number;
const contractAddressesForNetwork = getContractAddressesForNetworkOrThrow(networkIdAsNumber);
_.each(contractAddressesForNetwork, (contractAddress: string, contractName: string) => {
const contractNameLowercase = _.toLower(contractName);
if (_.isUndefined(this._deployedContractInfoByName[contractNameLowercase])) {
this._deployedContractInfoByName[contractNameLowercase] = [];
}
this._deployedContractInfoByName[contractNameLowercase].push({contractAddress, networkId: networkIdAsNumber});
});
});
// Load contract artifacts
_.each(ContractArtifacts, (contractArtifactAsJson: any) => {
const conractArtifact = contractArtifactAsJson as SimpleContractArtifact;
const contractName = conractArtifact.contractName;
const contractNameLowercase = _.toLower(contractName);
const contractAbi: ContractAbi = conractArtifact.compilerOutput.abi;
this.addABI(contractAbi, contractName, this._deployedContractInfoByName[contractNameLowercase]);
});
}
public static addABI(abiArray: AbiDefinition[], contractName: string, deploymentInfos?: DeployedContractInfo[]): void {
const instance = ZeroExTransactionDecoder.getInstance();
instance.addABI(abiArray, contractName, deploymentInfos);
}
public static decode(calldata: string, txProperties?: TransactionProperties): TransactionData {
const instance = ZeroExTransactionDecoder.getInstance();
const decodedCalldata = instance.decode(calldata, txProperties);
return decodedCalldata;
}
}
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