1 files changed, 0 insertions, 129 deletions
diff --git a/packages/asset-buyer/src/asset_buyers/asset_buyer.ts b/packages/asset-buyer/src/asset_buyers/asset_buyer.ts
deleted file mode 100644
index eb7f85e2b..000000000
--- a/packages/asset-buyer/src/asset_buyers/asset_buyer.ts
+++ /dev/null
@@ -1,129 +0,0 @@
-import { ContractWrappers } from '@0xproject/contract-wrappers';
-import { marketUtils } from '@0xproject/order-utils';
-import { SignedOrder } from '@0xproject/types';
-import { BigNumber } from '@0xproject/utils';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
-import * as _ from 'lodash';
-import { Provider } from 'ethereum-types';
-
-import { constants } from '../constants';
-import { AssetBuyerError, BuyQuote, BuyQuoteRequest } from '../types';
-
-const SLIPPAGE_PERCENTAGE = new BigNumber(0.2); // 20% slippage protection, possibly move this into request interface
-
-export interface AssetBuyerConfig {
-    orders: SignedOrder[];
-    feeOrders: SignedOrder[];
-    remainingFillableMakerAssetAmounts?: BigNumber[];
-    remainingFillableFeeAmounts?: BigNumber[];
-    networkId?: number;
-}
-
-export class AssetBuyer {
-    public readonly provider: Provider;
-    public readonly config: AssetBuyerConfig;
-    private _contractWrappers: ContractWrappers;
-    constructor(provider: Provider, config: AssetBuyerConfig) {
-        this.provider = provider;
-        this.config = config;
-        const networkId = this.config.networkId || constants.MAINNET_NETWORK_ID;
-        this._contractWrappers = new ContractWrappers(this.provider, {
-            networkId,
-        });
-    }
-    /**
-     * Given a BuyQuoteRequest, returns a BuyQuote containing all information relevant to fulfilling the buy. Pass the BuyQuote
-     * to executeBuyQuoteAsync to execute the buy.
-     * @param   buyQuoteRequest     An object that conforms to BuyQuoteRequest. See type definition for more information.
-     * @return  An object that conforms to BuyQuote that satisfies the request. See type definition for more information.
-     */
-    public getBuyQuote(buyQuoteRequest: BuyQuoteRequest): BuyQuote {
-        const { assetBuyAmount, feePercentage } = buyQuoteRequest;
-        const { orders, feeOrders, remainingFillableMakerAssetAmounts, remainingFillableFeeAmounts } = this.config;
-        // TODO: optimization
-        // make the slippage percentage customizable
-        const slippageBufferAmount = assetBuyAmount.mul(SLIPPAGE_PERCENTAGE).round();
-        const { resultOrders, remainingFillAmount } = marketUtils.findOrdersThatCoverMakerAssetFillAmount(
-            orders,
-            assetBuyAmount,
-            {
-                remainingFillableMakerAssetAmounts,
-                slippageBufferAmount,
-            },
-        );
-        if (remainingFillAmount.gt(constants.ZERO_AMOUNT)) {
-            throw new Error(AssetBuyerError.InsufficientAssetLiquidity);
-        }
-        // TODO: optimization
-        // update this logic to find the minimum amount of feeOrders to cover the worst case as opposed to
-        // finding order that cover all fees, this will help with estimating ETH and minimizing gas usage
-        const { resultFeeOrders, remainingFeeAmount } = marketUtils.findFeeOrdersThatCoverFeesForTargetOrders(
-            resultOrders,
-            feeOrders,
-            {
-                remainingFillableMakerAssetAmounts,
-                remainingFillableFeeAmounts,
-            },
-        );
-        if (remainingFeeAmount.gt(constants.ZERO_AMOUNT)) {
-            throw new Error(AssetBuyerError.InsufficientZrxLiquidity);
-        }
-        const assetData = orders[0].makerAssetData;
-        // TODO: critical
-        // calculate minRate and maxRate by calculating min and max eth usage and then dividing into
-        // assetBuyAmount to get assetData / WETH
-        return {
-            assetData,
-            orders: resultOrders,
-            feeOrders: resultFeeOrders,
-            minRate: constants.ZERO_AMOUNT,
-            maxRate: constants.ZERO_AMOUNT,
-            assetBuyAmount,
-            feePercentage,
-        };
-    }
-    /**
-     * Given a BuyQuote and desired rate, attempt to execute the buy.
-     * @param   buyQuote        An object that conforms to BuyQuote. See type definition for more information.
-     * @param   rate            The desired rate to execute the buy at. Affects the amount of ETH sent with the transaction, defaults to buyQuote.maxRate.
-     * @param   takerAddress    The address to perform the buy. Defaults to the first available address from the provider.
-     * @param   feeRecipient    The address where affiliate fees are sent. Defaults to null address (0x000...000).
-     * @return  A promise of the txHash.
-     */
-    public async executeBuyQuoteAsync(
-        buyQuote: BuyQuote,
-        rate?: BigNumber,
-        takerAddress?: string,
-        feeRecipient: string = constants.NULL_ADDRESS,
-    ): Promise<string> {
-        const { orders, feeOrders, feePercentage, assetBuyAmount, maxRate } = buyQuote;
-        // if no takerAddress is provided, try to get one from the provider
-        let finalTakerAddress;
-        if (!_.isUndefined(takerAddress)) {
-            finalTakerAddress = takerAddress;
-        } else {
-            const web3Wrapper = new Web3Wrapper(this.provider);
-            const availableAddresses = await web3Wrapper.getAvailableAddressesAsync();
-            const firstAvailableAddress = _.head(availableAddresses);
-            if (!_.isUndefined(firstAvailableAddress)) {
-                finalTakerAddress = firstAvailableAddress;
-            } else {
-                throw new Error(AssetBuyerError.NoAddressAvailable);
-            }
-        }
-        // if no rate is provided, default to the maxRate from buyQuote
-        const desiredRate = rate || maxRate;
-        // calculate how much eth is required to buy assetBuyAmount at the desired rate
-        const ethAmount = assetBuyAmount.dividedToIntegerBy(desiredRate);
-        const txHash = await this._contractWrappers.forwarder.marketBuyOrdersWithEthAsync(
-            orders,
-            assetBuyAmount,
-            finalTakerAddress,
-            ethAmount,
-            feeOrders,
-            feePercentage,
-            feeRecipient,
-        );
-        return txHash;
-    }
-}