one/scripts/monitors/price-monitor.js

const OneTask = require('../../libs/one-task')
const OneInch = require('../../libs/web3/1inch')
const BinanceSpot = require('../../libs/binance/binance-spot')
const Config = require('../../config/config')
const NumKit = require('../../kit/num-kit')
const PriceMonitorConfig = require('./config/price-monitor-config')

const showPrices = function(context, task) {
  const logger = task.logger
  const fileLogger = task.fileLogger
  const tokenMap = context.tokenMap

  const titles = ['pair', '1inch', 'binance', 'diff', 'percentage']
  const colWidth = 30
  const padTitles = titles.map((title) => {
    return title.padEnd(colWidth, ' ')
  })
  const titleLine = (() => {
    let titleLine = ''

    for (const padTitle of padTitles) {
      titleLine = titleLine.concat('|').concat(' ').concat(padTitle)
    }

    return titleLine.concat('|')
  })()
  const splitLint = ''.padEnd((colWidth + 2) * titles.length + 1, '-')

  console.clear()

  console.info(splitLint)
  console.info(titleLine)
  console.info(splitLint)
  Object.keys(tokenMap).forEach((tokenHash) => {
    const token = tokenMap[tokenHash]
    const pair = token.exchange.pair
    const OneInchPrice = token.OneInchPrice
    const BinancePrice = token.BinancePrice
    const DiffPrice = token.DiffPrice
    const percentage = NumKit.getSubFloat((DiffPrice / OneInchPrice) * 100, 2)

    const cols = [pair.toString(), OneInchPrice.toString(), BinancePrice.toString(), DiffPrice.toString(), percentage.toString()]
    const padCols = cols.map((col) => {
      return col.padEnd(colWidth, ' ')
    })
    const infoLine = (() => {
      let infoLine = ''

      for (const padCol of padCols) {
        infoLine = infoLine.concat('|').concat(' ').concat(padCol)
      }

      return infoLine.concat('|')
    })()

    // 价格非法的就不输出了
    if ((() => {
      return !OneInchPrice || !BinancePrice
    })()) return
    // 需要输出到文件的打印逻辑
    if ((() => {
      return percentage > PriceMonitorConfig.percentageLimit
    })()) {
      fileLogger.info(infoLine)
    }
    console.info(infoLine)
  })
  console.log(splitLint)
  logger.info('')
}

const onTickFun = async function() {
  const task = this
  const context = task.context
  const tokenMap = context.tokenMap
  const tokenContractAddressList = Object.keys(tokenMap)

  // 搜集所有价格数据
  for (const tokenHash of tokenContractAddressList) {
    const toToken = tokenMap[tokenHash]
    const lotSize = toToken.exchange.lotSize
    const fromIerc20Token = Config.baseIerc20Token
    const amount = Config.baseTokenAmount

    const OneInchPrice = NumKit.getSubFloat(await OneInch.price(fromIerc20Token.contract, tokenHash, amount), lotSize)
    const BinancePrice = NumKit.getSubFloat(await BinanceSpot.realPrice(toToken.exchange.pair), lotSize)

    toToken.OneInchPrice = OneInchPrice
    toToken.BinancePrice = BinancePrice
    toToken.DiffPrice = BinancePrice - OneInchPrice

    if ((() => {
      return Math.abs(toToken.DiffPrice) < Math.pow(10, -lotSize)
    })()) {
      toToken.DiffPrice = 0
    } {
      toToken.DiffPrice = NumKit.getSubFloat(toToken.DiffPrice, lotSize)
    }
  }

  // 绘制帧
  showPrices(context, task)
}

const priceMonitor = new OneTask('PriceMonitor',5 * 1000, OneTask.baseInit, onTickFun)

priceMonitor.Start()