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import { schemas } from '@0xproject/json-schemas';
import { SignedOrder } from '@0xproject/types';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
import { ContractAbi } from 'ethereum-types';
import * as _ from 'lodash';
import { artifacts } from '../artifacts';
import { BalanceAndAllowance, OrderAndTraderInfo, OrdersAndTradersInfo, TraderInfo } from '../types';
import { assert } from '../utils/assert';
import { ContractWrapper } from './contract_wrapper';
import { OrderValidatorContract } from './generated/order_validator';
/**
* This class includes the functionality related to interacting with the OrderValidator contract.
*/
export class OrderValidatorWrapper extends ContractWrapper {
public abi: ContractAbi = artifacts.OrderValidator.compilerOutput.abi;
private _orderValidatorContractIfExists?: OrderValidatorContract;
/**
* Instantiate OrderValidatorWrapper
* @param web3Wrapper Web3Wrapper instance to use
* @param networkId Desired networkId
*/
constructor(web3Wrapper: Web3Wrapper, networkId: number) {
super(web3Wrapper, networkId);
}
/**
* Get an object conforming to OrderAndTraderInfo containing on-chain information of the provided order and address
* @return OrderAndTraderInfo
*/
public async getOrderAndTraderInfoAsync(order: SignedOrder, takerAddress: string): Promise<OrderAndTraderInfo> {
assert.doesConformToSchema('order', order, schemas.signedOrderSchema);
assert.isETHAddressHex('takerAddress', takerAddress);
const OrderValidatorContractInstance = await this._getOrderValidatorContractAsync();
const orderAndTraderInfo = await OrderValidatorContractInstance.getOrderAndTraderInfo.callAsync(
order,
takerAddress,
);
const result = {
orderInfo: orderAndTraderInfo[0],
traderInfo: orderAndTraderInfo[1],
};
return result;
}
/**
* Get an object conforming to OrdersAndTradersInfo containing on-chain information of the provided orders and addresses
* @return OrdersAndTradersInfo
*/
public async getOrdersAndTradersInfoAsync(
orders: SignedOrder[],
takerAddresses: string[],
): Promise<OrdersAndTradersInfo> {
assert.doesConformToSchema('orders', orders, schemas.signedOrdersSchema);
_.forEach(takerAddresses, (takerAddress, index) =>
assert.isETHAddressHex(`takerAddresses[${index}]`, takerAddress),
);
assert.assert(orders.length === takerAddresses.length, 'Expected orders.length to equal takerAddresses.length');
const OrderValidatorContractInstance = await this._getOrderValidatorContractAsync();
const ordersAndTradersInfo = await OrderValidatorContractInstance.getOrdersAndTradersInfo.callAsync(
orders,
takerAddresses,
);
const result = {
ordersInfo: ordersAndTradersInfo[0],
tradersInfo: ordersAndTradersInfo[1],
};
return result;
}
/**
* Get an object conforming to TraderInfo containing on-chain balance and allowances for maker and taker of order
* @return TraderInfo
*/
public async getTraderInfoAsync(order: SignedOrder, takerAddress: string): Promise<TraderInfo> {
assert.doesConformToSchema('order', order, schemas.signedOrderSchema);
assert.isETHAddressHex('takerAddress', takerAddress);
const OrderValidatorContractInstance = await this._getOrderValidatorContractAsync();
const result = await OrderValidatorContractInstance.getTraderInfo.callAsync(order, takerAddress);
return result;
}
/**
* Get an array of objects conforming to TraderInfo containing on-chain balance and allowances for maker and taker of order
* @return array of TraderInfo
*/
public async getTradersInfoAsync(orders: SignedOrder[], takerAddresses: string[]): Promise<TraderInfo[]> {
assert.doesConformToSchema('orders', orders, schemas.signedOrdersSchema);
_.forEach(takerAddresses, (takerAddress, index) =>
assert.isETHAddressHex(`takerAddresses[${index}]`, takerAddress),
);
assert.assert(orders.length === takerAddresses.length, 'Expected orders.length to equal takerAddresses.length');
const OrderValidatorContractInstance = await this._getOrderValidatorContractAsync();
const result = await OrderValidatorContractInstance.getTradersInfo.callAsync(orders, takerAddresses);
return result;
}
/**
* Get an object conforming to BalanceAndAllowance containing on-chain balance and allowance for some address and assetData
* @return BalanceAndAllowance
*/
public async getBalanceAndAllowanceAsync(address: string, assetData: string): Promise<BalanceAndAllowance> {
assert.isETHAddressHex('address', address);
assert.isHexString('assetData', assetData);
const OrderValidatorContractInstance = await this._getOrderValidatorContractAsync();
const balanceAndAllowance = await OrderValidatorContractInstance.getBalanceAndAllowance.callAsync(
address,
assetData,
);
const result = {
balance: balanceAndAllowance[0],
allowance: balanceAndAllowance[1],
};
return result;
}
// HACK: We don't want this method to be visible to the other units within that package but not to the end user.
// TS doesn't give that possibility and therefore we make it private and access it over an any cast. Because of that tslint sees it as unused.
// tslint:disable-next-line:no-unused-variable
private _invalidateContractInstance(): void {
delete this._orderValidatorContractIfExists;
}
private async _getOrderValidatorContractAsync(): Promise<OrderValidatorContract> {
if (!_.isUndefined(this._orderValidatorContractIfExists)) {
return this._orderValidatorContractIfExists;
}
const [abi, address] = await this._getContractAbiAndAddressFromArtifactsAsync(artifacts.OrderValidator);
const contractInstance = new OrderValidatorContract(
abi,
address,
this._web3Wrapper.getProvider(),
this._web3Wrapper.getContractDefaults(),
);
this._orderValidatorContractIfExists = contractInstance;
return this._orderValidatorContractIfExists;
}
}
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