phunkAuctionAutoBidder.js

const { ethers } = require("ethers");

const provider = new ethers.providers.StaticJsonRpcProvider("ENTER THING HERE");

const ABI = [{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"phunkId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bool","name":"extended","type":"bool"}],"name":"AuctionBid","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"phunkId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"AuctionCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"duration","type":"uint256"}],"name":"AuctionDurationUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"phunkId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"AuctionExtended","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"minBidIncrementPercentage","type":"uint256"}],"name":"AuctionMinBidIncrementPercentageUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"reservePrice","type":"uint256"}],"name":"AuctionReservePriceUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"phunkId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"address","name":"winner","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"AuctionSettled","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"timeBuffer","type":"uint256"}],"name":"AuctionTimeBufferUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"auction","outputs":[{"internalType":"uint256","name":"phunkId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"address payable","name":"bidder","type":"address"},{"internalType":"bool","name":"settled","type":"bool"},{"internalType":"uint256","name":"auctionId","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"auctionId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"phunkId","type":"uint256"}],"name":"createBid","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_phunkId","type":"uint256"},{"internalType":"uint256","name":"_endTime","type":"uint256"}],"name":"createSpecialAuction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"duration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IPhunksToken","name":"_phunks","type":"address"},{"internalType":"address","name":"_weth","type":"address"},{"internalType":"uint256","name":"_timeBuffer","type":"uint256"},{"internalType":"uint256","name":"_reservePrice","type":"uint256"},{"internalType":"uint8","name":"_minBidIncrementPercentage","type":"uint8"},{"internalType":"uint256","name":"_duration","type":"uint256"},{"internalType":"address","name":"_treasuryWallet","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"minBidIncrementPercentage","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"phunks","outputs":[{"internalType":"contract IPhunksToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reservePrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_duration","type":"uint256"}],"name":"setDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"_minBidIncrementPercentage","type":"uint8"}],"name":"setMinBidIncrementPercentage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_reservePrice","type":"uint256"}],"name":"setReservePrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_timeBuffer","type":"uint256"}],"name":"setTimeBuffer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_treasuryWallet","type":"address"}],"name":"setTreasuryWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"settleAuction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"settleCurrentAndCreateNewAuction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"timeBuffer","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasuryWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"weth","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

const sleep = (ms) =>
  new Promise((r) =>
    setTimeout(() => {
      r();
    }, ms)
  );
  
const main = async () => {
  const PK = "ENTER THING HERE"
  const maxBidAmount = ethers.utils.parseEther("0.1");
  
  const wallet = new ethers.Wallet(PK, provider);
  const auctionAddress = "0x0E7f7d8007C0FCcAc2a813a25f205b9030697856"
  const minBidIncrementPercentage = 5;
  const auctionContract = new ethers.Contract(auctionAddress, ABI, wallet);
  
  while (true) {
    const currentAuction = await auctionContract.auction();
  
    const auctionedPhunk = currentAuction.phunkId;
    const currentHighBidderAddress = currentAuction.bidder;
    const currentUserAddress = wallet.address;
    const currentHighBid = currentAuction.amount;
    
    const lowestPossibleNextBid = currentHighBid.add(currentHighBid.mul(minBidIncrementPercentage).div(100));
    
    console.log("currentHighBid:", ethers.utils.formatEther(currentHighBid));
    console.log("lowestPossibleNextBid:", ethers.utils.formatEther(lowestPossibleNextBid));
    console.log("currentUserAddress:", currentUserAddress);
    console.log("currentHighBidderAddress:", currentHighBidderAddress);
    console.log("auctionedPhunk:", auctionedPhunk.toLocaleString());
    
    if (currentUserAddress != currentHighBidderAddress && lowestPossibleNextBid.lte(maxBidAmount)) {
      await auctionContract.createBid(auctionedPhunk, {value: lowestPossibleNextBid});
    } else if (lowestPossibleNextBid.gt(maxBidAmount)) {
      console.log("It's too rich!");
      process.exit()
    }
    
    await sleep(60 * 1000)
  }
}

main()