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import * as BigNumber from 'bignumber.js';
import {ZeroEx} from '../../src/0x.js';
import {Token, SignedOrder} from '../../src/types';
import {orderFactory} from '../utils/order_factory';
export class FillScenarios {
private zeroEx: ZeroEx;
private userAddresses: string[];
private tokens: Token[];
private coinBase: string;
constructor(zeroEx: ZeroEx, userAddresses: string[], tokens: Token[]) {
this.zeroEx = zeroEx;
this.userAddresses = userAddresses;
this.tokens = tokens;
this.coinBase = userAddresses[0];
}
public async createAFillableSignedOrderAsync(makerTokenAddress: string, takerTokenAddress: string,
makerAddress: string, takerAddress: string,
fillableAmount: BigNumber.BigNumber,
expirationUnixTimestampSec?: BigNumber.BigNumber):
Promise<SignedOrder> {
await this.zeroEx.token.transferAsync(makerTokenAddress, this.coinBase, makerAddress, fillableAmount);
await this.zeroEx.token.setProxyAllowanceAsync(makerTokenAddress, makerAddress, fillableAmount);
await this.zeroEx.token.transferAsync(takerTokenAddress, this.coinBase, takerAddress, fillableAmount);
await this.zeroEx.token.setProxyAllowanceAsync(takerTokenAddress, takerAddress, fillableAmount);
const transactionSenderAccount = await this.zeroEx.getTransactionSenderAccountIfExistsAsync();
this.zeroEx.setTransactionSenderAccount(makerAddress);
const signedOrder = await orderFactory.createSignedOrderAsync(this.zeroEx, makerAddress,
takerAddress, fillableAmount, makerTokenAddress, fillableAmount, takerTokenAddress,
expirationUnixTimestampSec);
this.zeroEx.setTransactionSenderAccount(transactionSenderAccount as string);
return signedOrder;
}
public async createPartiallyFilledSignedOrderAsync(makerTokenAddress: string, takerTokenAddress: string,
takerAddress: string, fillableAmount: BigNumber.BigNumber,
partialFillAmount: BigNumber.BigNumber) {
const prevSenderAccount = await this.zeroEx.getTransactionSenderAccountIfExistsAsync();
const [makerAddress] = this.userAddresses;
await this.zeroEx.token.setProxyAllowanceAsync(makerTokenAddress, makerAddress, fillableAmount);
await this.zeroEx.token.transferAsync(takerTokenAddress, makerAddress, takerAddress, fillableAmount);
await this.zeroEx.token.setProxyAllowanceAsync(takerTokenAddress, takerAddress, fillableAmount);
const signedOrder = await orderFactory.createSignedOrderAsync(this.zeroEx, makerAddress,
takerAddress, fillableAmount, makerTokenAddress, fillableAmount, takerTokenAddress);
this.zeroEx.setTransactionSenderAccount(takerAddress);
const shouldCheckTransfer = false;
await this.zeroEx.exchange.fillOrderAsync(signedOrder, partialFillAmount, shouldCheckTransfer);
// Re-set sender account so as to avoid introducing side-effects
this.zeroEx.setTransactionSenderAccount(prevSenderAccount as string);
return signedOrder;
}
}
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