const Config = require("../config/config");
const IERC20 = require("./web3/ierc20-token");

module.exports = class Token {
  exchange = {}
  ierc20 = {}

  constructor(exchangeSymbol, exchangePriceTick, exchangePair, ierc20Decimals) {
    this.exchange.symbol = exchangeSymbol
    this.exchange.priceTick = exchangePriceTick
    this.exchange.pair = exchangePair

    this.ierc20.decimals = ierc20Decimals
  }

  static async init(context, tokenHash, priceTickFilterMap) {
    // token初始化
    const ierc20Decimals = parseInt(await IERC20.getDecimals(tokenHash))
    const exchangeSymbol = Config.tokenMapping[tokenHash]
    const exchangePair = `${exchangeSymbol}${Config.baseIerc20Token.symbol}`
    const exchangePriceTick = priceTickFilterMap[exchangePair]

    context.tokenMap[tokenHash] = new Token(exchangeSymbol, exchangePriceTick, exchangePair, ierc20Decimals)
  }

  static async batchInit(context, ierc20TokenAddressList, priceTickFilterMap) {
    context.tokenMap = {}

    for (const tokenHash of ierc20TokenAddressList) {
      // 初始化token
      await Token.init(context, tokenHash, priceTickFilterMap)
    }
  }
}