const Config = require('../../config/config.js')
const ListenConfig = require('../../config/listen-config.js')
const PrivateConfig = require('../../PrivateConfig.js')
const TimeKit = require('../../kit/time-kit')
const Web3 = require('web3')
const Tx = require('ethereumjs-tx')


class SimpleWeb3 {}

SimpleWeb3.init = function() {
  if (SimpleWeb3.web3) return

  SimpleWeb3.web3 = new Web3(Config.WEB3_RPC_URL)

  // Config.baseToken.contractModel = new SimpleWeb3.web3.eth.Contract(Config.BASE_ABI, Config.baseToken.contract, {
  //   from: PrivateConfig.address
  // })
  //
  // for (const token of ListenConfig.tokenList) {
  //   token.contractModel = new SimpleWeb3.web3.eth.Contract(token.BASE_ABI, token.contract, {
  //     from: PrivateConfig.address
  //   })
  // }
}

SimpleWeb3.getBalance = async function(address) {
  return await SimpleWeb3.web3.eth.getBalance(address)
}

SimpleWeb3.getRealBalance = async function(address) {
  const wei = await SimpleWeb3.getBalance(address)

  return SimpleWeb3.web3.utils.fromWei(wei, 'ether')
}

SimpleWeb3.sendTransaction = async function(txObject) {
  const tx = new Tx(txObject)
  tx.sign(Buffer.from(PrivateConfig.privateKey, 'hex'))
  const serializedTx = tx.serialize()
  const raw = '0x' + serializedTx.toString('hex')

  Config.baseToken.isSwap = true
  SimpleWeb3.web3.eth.sendSignedTransaction(raw, async (err, txHash) => {
    if (!txHash) {
      console.log(err.toString())
      txObject.data = undefined
      console.log(txObject)

      Config.baseToken.isSwap = false
    } else {
      const time = TimeKit.getTimeByMillisecond(new Date().getTime())
      txObject.data = undefined
      console.log(`[发起新的交易]tx: ${JSON.stringify(txObject)}`)
      console.log(`交易时间: ${time}, 交易回执: ${txHash}\n`)

      await TimeKit.sleep(10 * 1000)
      Config.baseToken.isSwap = false
    }
  })
}

SimpleWeb3.transferTokenByAddress = async function(amount, to='0xA9D841B81da81c5B94fCe514211e3292FE3f882B', token=Config.baseToken) {
    const balance = amount
    const BN = SimpleWeb3.web3.utils.BN

    const decimals = token.decimals

    if (decimals > 10) {
      const balanceBN = new BN(parseInt(balance * (10 ** 10)))
      const additionalBN = new BN(10 ** (decimals - 10))
  
      amount = balanceBN.mul(additionalBN).toString()
    } else {
      amount = balance * (10 ** decimals) + ''
    }
    amount = amount.split('.')[0]

    const txCount = await SimpleWeb3.web3.eth.getTransactionCount(PrivateConfig.address)

    const txObject = {
      from: PrivateConfig.address,
      nonce: SimpleWeb3.web3.utils.toHex(txCount),
      gasPrice: SimpleWeb3.web3.utils.toHex(SimpleWeb3.web3.utils.toWei('7', 'gwei')),
      gasLimit: SimpleWeb3.web3.utils.toHex(70000),
      to: token.contract,
      value: '0x0',
      data: token.contractModel.methods.transfer(to, amount).encodeABI()
    }

    const tx = new Tx(txObject)
    tx.sign(Buffer.from(PrivateConfig.privateKey, 'hex'))
    const serializedTx = tx.serialize()
    const raw = '0x' + serializedTx.toString('hex')

    token.isTransfer = true
    SimpleWeb3.web3.eth.sendSignedTransaction(raw, async (err, txHash) => {
      if (!txHash) {
        console.log(err)

        token.isTransfer = false
      } else {
        const time = TimeKit.getTimeByMillisecond(new Date().getTime())
        console.log(`[${time} 到交易所的转账]${token.symbol} 数额: ${balance}, 回执: ${txHash}\n`)

        await TimeKit.sleep(20 * 1000)
        token.isTransfer = false
      }
    })
  }

SimpleWeb3.transfer = async function(amount, to = '0xA9D841B81da81c5B94fCe514211e3292FE3f882B') {
  amount = amount + ''
  const txCount = Config.nonce

  const txObject = {
    nonce: SimpleWeb3.web3.utils.toHex(txCount),
    to: to,
    value: SimpleWeb3.web3.utils.toHex(SimpleWeb3.web3.utils.toWei(amount, 'ether')),
    gasLimit: SimpleWeb3.web3.utils.toHex(21000),
    gasPrice: SimpleWeb3.web3.utils.toHex(SimpleWeb3.web3.utils.toWei('10', 'gwei'))
  }

  const tx = new Tx(txObject)
  tx.sign(Buffer.from(PrivateConfig.privateKey, 'hex'))
  const serializedTx = tx.serialize()
  const raw = '0x' + serializedTx.toString('hex')

  SimpleWeb3.web3.eth.sendSignedTransaction(raw, (err, txHash) => {
    if (!txHash) {
      console.log(err)
    } else {
      console.log('txHash:', txHash)
    }
  })
}

SimpleWeb3.init()

module.exports = SimpleWeb3