const crypto = require('crypto')
function sha1(data) { return crypto.createHash("sha1").update(data, "binary").digest("hex"); }

module.exports = async (app, req, res) => {

  if (!req.body.ID) return res.status(400).send("No ID provided!")
  if (!req.body.accountID) return res.status(400).send("No account ID provided!")
  if (!req.body.password) return res.status(400).send("No password provided!")
  if (!req.body.like) return res.status(400).send("No like flag provided! (1=like, 0=dislike)")
  if (!req.body.type) return res.status(400).send("No type provided! (1=level, 2=comment, 3=profile")
  if (!req.body.extraID) return res.status(400).send("No extra ID provided! (this should be a level ID, account ID, or '0' for levels")
  
  let params = {
    udid: '0',
    uuid: '0',
    rs: '8f0l0ClAN1'
  }

  params.itemID = req.body.ID.toString()
  params.gjp = app.xor.encrypt(req.body.password, 37526)
  params.accountID = req.body.accountID.toString()
  params.like = req.body.like.toString()
  params.special = req.body.extraID.toString()
  params.type = req.body.type.toString()

  let chk = params.special + params.itemID + params.like + params.type + params.rs + params.accountID + params.udid + params.uuid + "ysg6pUrtjn0J"
  chk = sha1(chk)
  chk = app.xor.encrypt(chk, 58281)

  params.chk = chk

  req.gdRequest('likeGJItem211', params, function (err, resp, body) {
    if (err) return res.status(400).send("The Geometry Dash servers returned an error! Perhaps they're down for maintenance")
    if (!body || body == -1) return res.status(400).send(`The Geometry Dash servers rejected your vote! Try again later, or make sure your username and password are entered correctly. Last worked: ${app.timeSince(req.id)} ago.`)
    else app.trackSuccess(req.id)
    res.status(200).send((params.like == 1 ? 'Successfully liked!' : 'Successfully disliked!') + " (this will only take effect if this is your first time doing so)")
  })
}