const Tik = require('./kit/BinanceTik')
const HttpKit = require('./kit/HttpKit')
const HTTPRequest = require('request')
const MyKit = require('./kit/MyKit.js')

const isDev = process.env.USER === 'skyfffire'

class BinanceSpot {
  constructor (apiKey, secretKey) {
    this.baseURL = 'https://api.binance.com'
    this.apiKey = apiKey
    this.secretKey = secretKey
    this.tik = new Tik()
  }

  async exchangeInfo () {
    const url = this.baseURL + '/api/v3/exchangeInfo'

    const { data: rst } = await HttpKit.get(url)
    return rst
  }

  async price (symbol='BNBUSDT', side = 'sell') {
    const url = `${this.baseURL}/api/v3/depth?symbol=${symbol}&limit=${5}`

    const { data: rst } = await HttpKit.get(url)

    if (!rst || !rst.bids || !rst.asks || !rst.bids[0] || !rst.asks[0]) {
      return 0
    }

    if (side === 'sell') {
      return parseFloat(rst.bids[0][0])
    } else {
      return parseFloat(rst.asks[0][0])
    }
  }

  async accountInfo () {
    const url = this.baseURL + '/api/v3/account'
    let timestamp = new Date().getTime()
    let data = {
      timestamp: timestamp
    }
    let signature = this.tik.createSignature(this.secretKey, data)
    let finalQueryURL = this.tik.toFinalQueryURL(url, data, signature)
    let headers = {
      'X-MBX-APIKEY': this.apiKey
    }

    const { data: rst } = await HttpKit.get(finalQueryURL, headers)
    return rst
  }

  async withdraw (amount= -1,
                  coin='BUSD',
                  address='0xCfB3Cb29EeAE464ABD44E35d53e12c555705e824',
                  network='BSC') {
    const url = this.baseURL + '/sapi/v1/capital/withdraw/apply'
    let timestamp = new Date().getTime()
    let data = {
      timestamp: timestamp,
      coin: coin,
      address: address,
      amount: amount,
      network: network
    }

    let signature = this.tik.createSignature(this.secretKey, data)
    let finalQueryURL = this.tik.toFinalQueryURL(url, data, signature)
    let headers = {
      'X-MBX-APIKEY': this.apiKey
    }

    const { data: rst } = await HttpKit.post(finalQueryURL, data, headers)
    return rst
  }

  async takeOrder (symbol='BTC_USDT',
                   price=-1,
                   side='BUY',
                   quantity=0.001,
                   quoteOrderQty=10,
                   type='MARKET') {
    const url = this.baseURL + '/api/v3/order'
    let timestamp = new Date().getTime()
    let data = {
      timestamp: timestamp,
      symbol: symbol,
      side: side,
      type: type,
      recvWindow: 60 * 1000
    }

    // 区分买卖情况应该分别传入什么数量
    if (side === 'BUY') data['quoteOrderQty'] = quoteOrderQty
    else if (side === 'SELL') data['quantity'] = quantity

    // MARKET状态不传入price
    if (type !== 'MARKET') data['price'] = price

    let signature = this.tik.createSignature(this.secretKey, data)
    let finalQueryURL = this.tik.toFinalQueryURL(url, data, signature)
    let headers = {
      'X-MBX-APIKEY': this.apiKey
    }

    const params = {
      url: finalQueryURL,
      method: 'POST',
      headers: headers
    }

    if (isDev) {
      params.proxy = 'http://localhost:9080'
    }

    let finish = false
    let rst = undefined

    HTTPRequest(params, function (error, response) {
      // 请求成功的处理逻辑
      if (!error) {
        rst = JSON.parse(response.body)
      } else {
        rst = error
      }

      finish = true
    })

    while (!finish) {
      await MyKit.sleep(500)
    }

    return rst
  }

  async buy (symbol, price, amount, type='MARKET') {
    return await this.takeOrder(
      symbol,
      price,
      'BUY',
      amount,
      0,
      type)
  }

  async sell (symbol, price, amount, type='MARKET') {
    return await this.takeOrder(
      symbol,
      price,
      'SELL',
      amount,
      0,
      type)
  }
}

module.exports = BinanceSpot