clean planet bot

// modules
const fs = require('fs');
const axios = require('axios');
const hive = require('@hiveio/hive-js');

// variables
const wif = "PRIVATE_KEY_HERE"


const ratiox = 800
const timer = 60000
const titre = "CleanPlanet Upvote"
const jsonComment = JSON.stringify({
  app: "CleanPlanet_Bot/0.1"
})

// code
var blocklastvote = 0
loadFile(function() {
  checkBurnHistory()
  setInterval(function() {
    checkBurnHistory()
  }, timer)
})

function loadFile(cb) {
  fs.readFile("./block_hive.txt", 'utf8', function(err, contents) {
    console.log("Bot restarted on block "+contents)
    if (!err)
      blocklastvote = parseInt(contents)
    cb()
  });
}

function checkBurnHistory() {
  console.log("Checking @null history")
  var url = "https://accounts.hive-engine.com/accountHistory?account=null&limit=100&offset=0&type=user&symbol=PLANET"
  axios.get(url)
  .then(function (response) {
    for (let i = 0; i < response.data.length; i++) {
      handleBurn(response.data[i])
    }
  })
  .catch(function (error) {
    console.log(error);
  })
}
 
function handleBurn(burn) {
  var quantity = parseFloat(burn.quantity)
  var payer = burn.from
  var memo = burn.memo
  var lien = memo.split("@")
  if (lien.length == 2) {
    var contenu = lien[1].split("/")
    if (contenu.length == 2) {
      var author = contenu[0]
      var permalink = contenu[1]
      var nbBlock = parseInt(burn.blockNumber)
      hive.api.getContent(author, permalink, function(err, result) {
        if (err) return;
        if (!result.json_metadata) return;
        var tags = JSON.parse(result.json_metadata).tags
        var weight = quantity*8000/ratiox
        if (tags.indexOf('cleanplanet') > -1)
          weight *= 1.25
        weight = Math.floor(weight)
        if (weight > 10000) weight = 10000
        if (nbBlock > blocklastvote && weight > 0) {
          console.log(payer+" burn "+quantity+" PLANET voting for "+author+"/"+permalink+" at "+weight/100+"%")
          blocklastvote = nbBlock
          fs.writeFile("./block_hive.txt", blocklastvote, function(err) {
            if(err) {
                return console.log(err);
            }
          });
          hive.broadcast.vote(wif, voter, author, permalink, weight, function(err, result) {
            if (!err) {
              console.log("Vote done")
              var commentaire = "Thanks to @"+payer+" for burning ["+quantity+" PLANET](https:\/\/hive-engine.com\/?p=market&t=PLANET)! You have been rewarded with a "+weight/100+"% vote. Your action makes this project grow and helps to$
              var random = Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
              hive.broadcast.comment(wif, author, permalink, voter, random, titre, commentaire, jsonComment, function(err, result) {
                if (!err)
                  console.log("Comment done")
                else console.log(err)
              });
            }
          });
        }
      });
    }
  }
}