import { TransactionReceiptWithDecodedLogs, ZeroEx } from '0x.js';
import { BigNumber } from '@0xproject/utils';
import * as _ from 'lodash';
import * as Web3 from 'web3';

import { ExchangeContract } from '../contract_wrappers/generated/exchange';

import { constants } from './constants';
import { formatters } from './formatters';
import { LogDecoder } from './log_decoder';
import { orderUtils } from './order_utils';
import { AssetProxyId, OrderInfo, SignedOrder, SignedTransaction } from './types';

export class ExchangeWrapper {
    private _exchange: ExchangeContract;
    private _logDecoder: LogDecoder = new LogDecoder(constants.TESTRPC_NETWORK_ID);
    private _zeroEx: ZeroEx;
    constructor(exchangeContract: ExchangeContract, zeroEx: ZeroEx) {
        this._exchange = exchangeContract;
        this._zeroEx = zeroEx;
    }
    public async fillOrderAsync(
        signedOrder: SignedOrder,
        from: string,
        opts: { takerAssetFillAmount?: BigNumber } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount);
        const txHash = await this._exchange.fillOrder.sendTransactionAsync(
            params.order,
            params.takerAssetFillAmount,
            params.signature,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async cancelOrderAsync(signedOrder: SignedOrder, from: string): Promise<TransactionReceiptWithDecodedLogs> {
        const params = orderUtils.createCancel(signedOrder);
        const txHash = await this._exchange.cancelOrder.sendTransactionAsync(params.order, { from });
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async fillOrKillOrderAsync(
        signedOrder: SignedOrder,
        from: string,
        opts: { takerAssetFillAmount?: BigNumber } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount);
        const txHash = await this._exchange.fillOrKillOrder.sendTransactionAsync(
            params.order,
            params.takerAssetFillAmount,
            params.signature,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async fillOrderNoThrowAsync(
        signedOrder: SignedOrder,
        from: string,
        opts: { takerAssetFillAmount?: BigNumber } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount);
        const txHash = await this._exchange.fillOrderNoThrow.sendTransactionAsync(
            params.order,
            params.takerAssetFillAmount,
            params.signature,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async batchFillOrdersAsync(
        orders: SignedOrder[],
        from: string,
        opts: { takerAssetFillAmounts?: BigNumber[] } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createBatchFill(orders, opts.takerAssetFillAmounts);
        const txHash = await this._exchange.batchFillOrders.sendTransactionAsync(
            params.orders,
            params.takerAssetFillAmounts,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async batchFillOrKillOrdersAsync(
        orders: SignedOrder[],
        from: string,
        opts: { takerAssetFillAmounts?: BigNumber[] } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createBatchFill(orders, opts.takerAssetFillAmounts);
        const txHash = await this._exchange.batchFillOrKillOrders.sendTransactionAsync(
            params.orders,
            params.takerAssetFillAmounts,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async batchFillOrdersNoThrowAsync(
        orders: SignedOrder[],
        from: string,
        opts: { takerAssetFillAmounts?: BigNumber[] } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createBatchFill(orders, opts.takerAssetFillAmounts);
        const txHash = await this._exchange.batchFillOrdersNoThrow.sendTransactionAsync(
            params.orders,
            params.takerAssetFillAmounts,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async marketSellOrdersAsync(
        orders: SignedOrder[],
        from: string,
        opts: { takerAssetFillAmount: BigNumber },
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createMarketSellOrders(orders, opts.takerAssetFillAmount);
        const txHash = await this._exchange.marketSellOrders.sendTransactionAsync(
            params.orders,
            params.takerAssetFillAmount,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async marketSellOrdersNoThrowAsync(
        orders: SignedOrder[],
        from: string,
        opts: { takerAssetFillAmount: BigNumber },
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createMarketSellOrders(orders, opts.takerAssetFillAmount);
        const txHash = await this._exchange.marketSellOrdersNoThrow.sendTransactionAsync(
            params.orders,
            params.takerAssetFillAmount,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async marketBuyOrdersAsync(
        orders: SignedOrder[],
        from: string,
        opts: { makerAssetFillAmount: BigNumber },
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createMarketBuyOrders(orders, opts.makerAssetFillAmount);
        const txHash = await this._exchange.marketBuyOrders.sendTransactionAsync(
            params.orders,
            params.makerAssetFillAmount,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async marketBuyOrdersNoThrowAsync(
        orders: SignedOrder[],
        from: string,
        opts: { makerAssetFillAmount: BigNumber },
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createMarketBuyOrders(orders, opts.makerAssetFillAmount);
        const txHash = await this._exchange.marketBuyOrdersNoThrow.sendTransactionAsync(
            params.orders,
            params.makerAssetFillAmount,
            params.signatures,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async batchCancelOrdersAsync(
        orders: SignedOrder[],
        from: string,
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = formatters.createBatchCancel(orders);
        const txHash = await this._exchange.batchCancelOrders.sendTransactionAsync(params.orders, { from });
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async cancelOrdersUpToAsync(salt: BigNumber, from: string): Promise<TransactionReceiptWithDecodedLogs> {
        const txHash = await this._exchange.cancelOrdersUpTo.sendTransactionAsync(salt, { from });
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async registerAssetProxyAsync(
        assetProxyId: AssetProxyId,
        assetProxyAddress: string,
        from: string,
        opts: { oldAssetProxyAddressIfExists?: string } = {},
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const oldAssetProxyAddress = _.isUndefined(opts.oldAssetProxyAddressIfExists)
            ? ZeroEx.NULL_ADDRESS
            : opts.oldAssetProxyAddressIfExists;
        const txHash = await this._exchange.registerAssetProxy.sendTransactionAsync(
            assetProxyId,
            assetProxyAddress,
            oldAssetProxyAddress,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async executeTransactionAsync(
        signedTx: SignedTransaction,
        from: string,
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const txHash = await this._exchange.executeTransaction.sendTransactionAsync(
            signedTx.salt,
            signedTx.signer,
            signedTx.data,
            signedTx.signature,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    public async getTakerAssetFilledAmountAsync(orderHashHex: string): Promise<BigNumber> {
        const filledAmount = new BigNumber(await this._exchange.filled.callAsync(orderHashHex));
        return filledAmount;
    }
    public async getOrderInfoAsync(signedOrder: SignedOrder): Promise<OrderInfo> {
        const orderInfo = (await this._exchange.getOrderInfo.callAsync(signedOrder)) as OrderInfo;
        return orderInfo;
    }
    public async matchOrdersAsync(
        signedOrderLeft: SignedOrder,
        signedOrderRight: SignedOrder,
        from: string,
    ): Promise<TransactionReceiptWithDecodedLogs> {
        const params = orderUtils.createMatchOrders(signedOrderLeft, signedOrderRight);
        const txHash = await this._exchange.matchOrders.sendTransactionAsync(
            params.left,
            params.right,
            params.leftSignature,
            params.rightSignature,
            { from },
        );
        const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
        return tx;
    }
    private async _getTxWithDecodedExchangeLogsAsync(txHash: string) {
        const tx = await this._zeroEx.awaitTransactionMinedAsync(txHash);
        tx.logs = _.filter(tx.logs, log => log.address === this._exchange.address);
        tx.logs = _.map(tx.logs, log => this._logDecoder.decodeLogOrThrow(log));
        return tx;
    }
}