blockchain-javascript/scripts/generate/index.js

const Web3Utils = require('../../utils/web3-utils')
const logger = require("../../utils/logger")
const Time = require("../../utils/time")
const ChainLib = require("../lib/chain-lib")
const FactoryLib = require("../lib/factory-lib")
const LpLib = require("../lib/lp-lib")
const StateLib = require("../lib/state-lib")
const TokenLib = require("../lib/token-lib")

class LpGenerate {
  constructor(web3, chain) {
    this.web3 = web3
    this.chain = chain

    // 初始化依赖库
    this.factoryLib = new FactoryLib(this.web3, this.chain)
    this.tokenLib = new TokenLib(this.web3, this.chain)
    this.lpLib = new LpLib(this.web3, this.chain, this.factoryLib, this.tokenLib)
  }

  async tick() {
    // 3.1. 拉取指定链所有factory
    const factoryList = await this.factoryLib.getFactoryList()

    // 3.2 循环处理所有factory
    for (let factory of factoryList) {
      // 3.2.1 拉取指定factory的拉取情况
      let nextPosition = 0 // TODO 先都从0开始
      let pairsLength = await this.factoryLib.getPairsLength(factory)

      // 3.2.2 从指定位置开始拉取lp
      for (let position = nextPosition; position < pairsLength; position++) {
        // 3.2.2.1 拉取lp
        const lp = await this.lpLib.getLpByPosition(factory, position)
        if (lp) {
          // 3.2.2.2 构造token0, token1
          const token0 = await this.tokenLib.parseToken(lp, true)
          const token1 = await this.tokenLib.parseToken(lp, false)
          // 3.2.2.3 更新或新增lp
          logger.info(await this.lpLib.saveLp(factory, lp))
          // 3.3.2.4 更新或新增token
          logger.info(await this.tokenLib.saveToken(token0))
          logger.info(await this.tokenLib.saveToken(token1))

          logger.debug(`${position + 1} / ${pairsLength}, ${lp.name}-${lp.hash}-${this.chain.networkName}`)
        } else {
          logger.debug(`lp get filed. ${position + 1} / ${pairsLength}, ${factory.name}-${factory.router}-${this.chain.networkName}`)
        }
      }
    }
  }

  async run() {
    logger.debug(`${this.chain.networkName} liquidity pool generate is start.`)
    logger.debug(`web3 is connected, block number: ${await this.web3.eth.getBlockNumber()}.`)

    // 3. 开始处理
    while (true) {
      try {
        await this.tick()
      } catch (e) {
        logger.error(e)
      }

      await Time.delay(12000)
    }
  }
}

async function main() {
  const chain = await ChainLib.getChainFromCommand()
  const web3 = Web3Utils.autoCreate(chain)
  const generator = new LpGenerate(web3, chain)

  await generator.run()
}

main().catch((error) => {
  console.error(error);
  process.exitCode = 1;
})