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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-11-22 21:52:25 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-12-03 18:31:53 +0800 |
commit | 4668b0732ce4b62b3b7d19ea4e155a6d3c4e6004 (patch) | |
tree | 43cad9046ecc4c9e59e9d9743c6f076878881037 /contracts/core/test/utils/forwarder_wrapper.ts | |
parent | 502e9c7be48caafd7725451789f896efdaf17dac (diff) | |
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Move packages/contracts to contracts/core
Diffstat (limited to 'contracts/core/test/utils/forwarder_wrapper.ts')
-rw-r--r-- | contracts/core/test/utils/forwarder_wrapper.ts | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/contracts/core/test/utils/forwarder_wrapper.ts b/contracts/core/test/utils/forwarder_wrapper.ts new file mode 100644 index 000000000..a0bfcfe1d --- /dev/null +++ b/contracts/core/test/utils/forwarder_wrapper.ts @@ -0,0 +1,121 @@ +import { SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { Provider, TransactionReceiptWithDecodedLogs, TxDataPayable } from 'ethereum-types'; +import * as _ from 'lodash'; + +import { ForwarderContract } from '../../generated-wrappers/forwarder'; + +import { constants } from './constants'; +import { formatters } from './formatters'; +import { LogDecoder } from './log_decoder'; +import { MarketSellOrders } from './types'; + +export class ForwarderWrapper { + private readonly _web3Wrapper: Web3Wrapper; + private readonly _forwarderContract: ForwarderContract; + private readonly _logDecoder: LogDecoder; + public static getPercentageOfValue(value: BigNumber, percentage: number): BigNumber { + const numerator = constants.PERCENTAGE_DENOMINATOR.times(percentage).dividedToIntegerBy(100); + const newValue = value.times(numerator).dividedToIntegerBy(constants.PERCENTAGE_DENOMINATOR); + return newValue; + } + public static getWethForFeeOrders(feeAmount: BigNumber, feeOrders: SignedOrder[]): BigNumber { + let wethAmount = new BigNumber(0); + let remainingFeeAmount = feeAmount; + _.forEach(feeOrders, feeOrder => { + const feeAvailable = feeOrder.makerAssetAmount.minus(feeOrder.takerFee); + if (!remainingFeeAmount.isZero() && feeAvailable.gt(remainingFeeAmount)) { + wethAmount = wethAmount.plus( + feeOrder.takerAssetAmount + .times(remainingFeeAmount) + .dividedBy(feeAvailable) + .ceil(), + ); + remainingFeeAmount = new BigNumber(0); + } else if (!remainingFeeAmount.isZero()) { + wethAmount = wethAmount.plus(feeOrder.takerAssetAmount); + remainingFeeAmount = remainingFeeAmount.minus(feeAvailable); + } + }); + return wethAmount; + } + private static _createOptimizedOrders(signedOrders: SignedOrder[]): MarketSellOrders { + _.forEach(signedOrders, (signedOrder, index) => { + signedOrder.takerAssetData = constants.NULL_BYTES; + if (index > 0) { + signedOrder.makerAssetData = constants.NULL_BYTES; + } + }); + const params = formatters.createMarketSellOrders(signedOrders, constants.ZERO_AMOUNT); + return params; + } + private static _createOptimizedZrxOrders(signedOrders: SignedOrder[]): MarketSellOrders { + _.forEach(signedOrders, signedOrder => { + signedOrder.makerAssetData = constants.NULL_BYTES; + signedOrder.takerAssetData = constants.NULL_BYTES; + }); + const params = formatters.createMarketSellOrders(signedOrders, constants.ZERO_AMOUNT); + return params; + } + constructor(contractInstance: ForwarderContract, provider: Provider) { + this._forwarderContract = contractInstance; + this._web3Wrapper = new Web3Wrapper(provider); + this._logDecoder = new LogDecoder(this._web3Wrapper); + } + public async marketSellOrdersWithEthAsync( + orders: SignedOrder[], + feeOrders: SignedOrder[], + txData: TxDataPayable, + opts: { feePercentage?: BigNumber; feeRecipient?: string } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = ForwarderWrapper._createOptimizedOrders(orders); + const feeParams = ForwarderWrapper._createOptimizedZrxOrders(feeOrders); + const feePercentage = _.isUndefined(opts.feePercentage) ? constants.ZERO_AMOUNT : opts.feePercentage; + const feeRecipient = _.isUndefined(opts.feeRecipient) ? constants.NULL_ADDRESS : opts.feeRecipient; + const txHash = await this._forwarderContract.marketSellOrdersWithEth.sendTransactionAsync( + params.orders, + params.signatures, + feeParams.orders, + feeParams.signatures, + feePercentage, + feeRecipient, + txData, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async marketBuyOrdersWithEthAsync( + orders: SignedOrder[], + feeOrders: SignedOrder[], + makerAssetFillAmount: BigNumber, + txData: TxDataPayable, + opts: { feePercentage?: BigNumber; feeRecipient?: string } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = ForwarderWrapper._createOptimizedOrders(orders); + const feeParams = ForwarderWrapper._createOptimizedZrxOrders(feeOrders); + const feePercentage = _.isUndefined(opts.feePercentage) ? constants.ZERO_AMOUNT : opts.feePercentage; + const feeRecipient = _.isUndefined(opts.feeRecipient) ? constants.NULL_ADDRESS : opts.feeRecipient; + const txHash = await this._forwarderContract.marketBuyOrdersWithEth.sendTransactionAsync( + params.orders, + makerAssetFillAmount, + params.signatures, + feeParams.orders, + feeParams.signatures, + feePercentage, + feeRecipient, + txData, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async withdrawAssetAsync( + assetData: string, + amount: BigNumber, + txData: TxDataPayable, + ): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._forwarderContract.withdrawAsset.sendTransactionAsync(assetData, amount, txData); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } +} |