/* ----------------------------------------------------------------------------

 Online Moodle/Elearning/KMOOC test help
 Greasyfork: <https://greasyfork.org/en/scripts/38999-moodle-elearning-kmooc-test-help>
 GitLab: <https://gitlab.com/MrFry/moodle-test-userscript>

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program. If not, see <https://www.gnu.org/licenses/>.

 ------------------------------------------------------------------------- */

// ==UserScript==
// @name         Moodle/Elearning/KMOOC test help
// @version      2.0.1.0
// @description  Online Moodle/Elearning/KMOOC test help
// @author       MrFry
// @match        https://elearning.uni-obuda.hu/main/*
// @match        https://elearning.uni-obuda.hu/kmooc/*
// @match        https://mooc.unideb.hu/*
// @match        https://qmining.frylabs.net/*
// @match        http://qmining.frylabs.net/*
// @noframes
// @grant        GM_getResourceText
// @grant        GM_info
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// @grant        GM_xmlhttpRequest
// @grant        GM_openInTab
// @license      GNU General Public License v3.0 or later
// @supportURL   qmining.frylabs.net
// @contributionURL qmining.frylabs.net
// @namespace    https://qmining.frylabs.net
// @updateURL    https://qmining.frylabs.net/moodle-test-userscript/stable.user.js?up
// ==/UserScript==
//
// TODO:
// grabboxes test on quiz page

(function() { // eslint-disable-line
  // GM functions, only to disable ESLINT errors
  /* eslint-disable  */
  const a = Main
  function getVal (name) { return GM_getValue(name) }
  function setVal (name, val) { return GM_setValue(name, val) }
  function delVal (name) { return GM_deleteValue(name) }
  function openInTab (address, options) { GM_openInTab(address, options) }
  function xmlhttpRequest (opts) { GM_xmlhttpRequest(opts) }
  function info () { return GM_info }
  /* eslint-enable */

  var addEventListener // add event listener function
  const serverAdress = 'https://qmining.frylabs.net/'
  // const serverAdress = 'http://localhost:8080/'
  const apiAdress = 'https://api.frylabs.net/'
  // const apiAdress = 'http://localhost:80/'
  const ircAddress = 'https://kiwiirc.com/nextclient/irc.sub.fm/#qmining'

  // forcing pages for testing. unless you test, do not set these to true!
  // only one of these should be true for testing
  const forceTestPage = false
  const forceResultPage = false
  const forceDefaultPage = false
  const logElementGetting = false
  const log = true

  const motdShowCount = 3 /* Ammount of times to show motd */
  const infoExpireTime = 60 // Every n seconds basic info should be loaded from server
  var motd = ''
  var lastestVersion = ''
  var subjInfo

  const huTexts = {
    lastChangeLog: '',
    fatalError: 'Fatál error. Check console (f12). Kattints az üzenetre az összes kérdés/válaszért manuális kereséshez!',
    consoleErrorInfo: 'Itteni hibák 100% a moodle hiba. Kivéve, ha oda van írva hogy script error ;) Ha ilyesmi szerepel itt, akkor olvasd el a segítség szekciót!',
    freshStartWarning: '<h1>Moodle teszt userscript:<h1><h3>1.5.0 verzió: a script mostantól XMLHTTP kéréseket küld szerver fele! Erre a userscript futtató kiegészítőd is figyelmeztetni fog! Ha ez történik, a script rendes működése érdekében engedélyezd (Always allow domain)! Ha nem akarod, hogy ez történjen, akkor ne engedélyezd, vagy a menüben válaszd ki a "helyi fájl használata" opciót!</h3> <h3>Elküldött adatok: minden teszt után a kérdés-válasz páros. Fogadott adatok: Az összes eddig ismert kérdés. Érdemes help-et elolvasni!!!</h3><h5>Ez az ablak frissités után eltűnik. Ha nem, akkor a visza gombbal próbálkozz.</h5>',
    noResult: 'Nincs találat :( Kattints az üzenetre az összes kérdés/válaszért manuális kereséshez!',
    videoHelp: 'Miután elindítottad: Play/pause: space. Seek: Bal/jobb nyíl.',
    menuButtonText: 'Kérdések Menu',
    couldntLoadDataPopupMenuText: 'A kérdéseket nem lehetett beolvasni, ellenőrizd hogy elérhető-e a szerver',
    showGreetingOnEveryPage: 'Üdvözlő üzenet mutatása minden oldalon',
    close: 'Bezárás',
    help: 'Help',
    websiteBugreport: 'Weboldal / Bug report',
    donate: 'Donate',
    passiveTooltip: 'Ha erre kattintasz akkor a script átálítja a neptunban a hallgatói státuszod passzívra',
    retry: 'Újrapróbálás',
    ircButton: 'IRC',
    invalidPW: 'Hibás jelszó: ',
    search: 'Keresés ...',
    loading: 'Betöltés ...',
    noServer: 'Nem elérhető a szerver!',
    noUser: 'Nem vagy bejelentkezve!',
    passiveModeActivated: 'Passzív mód bekapcsolva, nem lesz mostantól a szerver piszkálva',
    passiveModeDeactivated: 'Passzív mód kikapcsolva, frissíts az érvénybe lépéshez!',
    passiveMode: 'Passzív mód',
    passiveModeMenuBoxText: 'Passzív mód aktív',
    noServerConsoleMessage: `Nem elérhető a szerver, vagy kis eséllyel kezeletlen hiba történt! Ha elérhető a weboldal, akkor ott meg bírod nézni a kérdéseket itt: ${serverAdress}legacy`
  }

  var texts = huTexts

  // : question-classes {{{
  const specialChars = [ '&', '\\+' ]

  const assert = (val) => {
    if (!val) { throw new Error('Assertion failed') }
  }

  class StringUtils {
    RemoveStuff (value, removableStrings, toReplace) {
      removableStrings.forEach((x) => {
        var regex = new RegExp(x, 'g')
        value = value.replace(regex, toReplace || '')
      })
      return value
    }

    SimplifyQuery (q) {
      assert(q)

      var result = q.replace(/\n/g, ' ').replace(/\s/g, ' ')
      return this.RemoveUnnecesarySpaces(result)
    }

    ShortenString (toShorten, ammount) {
      assert(toShorten)

      var result = ''
      var i = 0
      while (i < toShorten.length && i < ammount) {
        result += toShorten[i]
        i++
      }
      return result
    }

    ReplaceCharsWithSpace (val, char) {
      assert(val)
      assert(char)

      var toremove = this.NormalizeSpaces(val)

      var regex = new RegExp(char, 'g')
      toremove = toremove.replace(regex, ' ')

      return this.RemoveUnnecesarySpaces(toremove)
    }

    // removes whitespace from begining and and, and replaces multiple spaces with one space
    RemoveUnnecesarySpaces (toremove) {
      assert(toremove)

      toremove = this.NormalizeSpaces(toremove)
      while (toremove.includes('  ')) {
        toremove = toremove.replace(/ {2}/g, ' ')
      }
      return toremove.trim()
    }

    RemoveSpecialChars (value) {
      assert(value)

      return this.RemoveStuff(value, specialChars, ' ')
    }

    // if the value is empty, or whitespace
    EmptyOrWhiteSpace (value) {
    // replaces /n-s with "". then replaces spaces with "". if it equals "", then its empty, or only consists of white space
      if (value === undefined) { return true }
      return (value.replace(/\n/g, '').replace(/ /g, '').replace(/\s/g, ' ') === '')
    }

    // damn nonbreaking space
    NormalizeSpaces (input) {
      assert(input)

      return input.replace(/\s/g, ' ')
    }

    SimplifyStack (stack) {
      return this.SimplifyQuery(stack)
    }
  }

  const SUtils = new StringUtils()

  // : }}}

  // : DOM getting stuff {{{
  // all dom getting stuff are in this sections, so on
  // moodle dom change, stuff breaks here

  class QuestionsPageModell {
    GetAllQuestionsDropdown () {
      if (logElementGetting) { Log('getting dropdown question') }
      let items = document.getElementById('responseform').getElementsByTagName('p')[0].childNodes
      let r = ''
      items.forEach((item) => {
        if (item.tagName === undefined) { r += item.nodeValue }
      })
      return r
    }

    GetAllQuestionsQtext () {
      if (logElementGetting) { Log('getting all questions qtext') }
      return document.getElementById('responseform').getElementsByClassName('qtext') // getting questions
    }

    GetAllQuestionsP () {
      if (logElementGetting) { Log('getting all questions by tag p') }
      return document.getElementById('responseform').getElementsByTagName('p')
    }

    GetFormulationClearfix () {
      if (logElementGetting) { Log('getting formulation clearfix lol') }
      return document.getElementsByClassName('formulation clearfix')
    }

    GetAnswerOptions () {
      if (logElementGetting) { Log('getting all answer options') }
      return this.GetFormulationClearfix()[0].childNodes[3].innerText
    }

    GetQuestionImages () {
      if (logElementGetting) { Log('getting question images') }
      return this.GetFormulationClearfix()[0].getElementsByTagName('img')
    }

    // this function should return the question, posible answers, and image names
    GetQuestionFromTest () {
      var questions // the important questions
      var allQuestions // all questions
      try {
        allQuestions = this.GetAllQuestionsQtext() // getting questions
        if (allQuestions.length === 0) {
          var ddq = this.GetAllQuestionsDropdown()
          if (SUtils.EmptyOrWhiteSpace(ddq)) {
            var questionData = ''
            for (var j = 0; j < allQuestions.length; j++) {
              let subAllQuestions = allQuestions[j].childNodes
              for (let i = 0; i < subAllQuestions.length; i++) {
                if (subAllQuestions[i].data !== undefined && !SUtils.EmptyOrWhiteSpace(subAllQuestions[i].data)) {
                  questionData += subAllQuestions[i].data + ' ' // adding text to question data
                }
              }
            }
            questions = [questionData]
          } else { questions = [ddq] }
        } else {
          questions = []
          for (let i = 0; i < allQuestions.length; i++) {
            questions.push(allQuestions[i].innerText)
          }
        }
      } catch (e) {
        Exception(e, 'script error at getting question:')
      }
      var imgNodes = '' // the image nodes for questions
      try {
        imgNodes = this.GetQuestionImages() // getting question images, if there is any
        AddImageNamesToImages(imgNodes) // adding image names to images, so its easier to search for, or even guessing
      } catch (e) {
        Log(e)
        Log('Some error with images')
      }

      questions = questions.map((item) => {
        if (item) {
          return SUtils.ReplaceCharsWithSpace(item, '\n')
        }
      })

      return {
        imgnodes: imgNodes,
        allQ: allQuestions,
        q: questions
      }
    }
  }

  class ResultsPageModell {
    DetermineQuestionType (nodes) {
      let qtype = ''
      let i = 0

      while (i < nodes.length && qtype === '') {
        let inps = nodes[i].getElementsByTagName('input')

        if (inps.length > 0) {
          qtype = inps[0].type
        }

        i++
      }

      return qtype
    }

    GetSelectAnswer (i) {
      if (logElementGetting) { Log('getting selected answer') }
      var t = document.getElementsByTagName('select')
      if (t.length > 0) {
        return t[i].options[t[i].selectedIndex].innerText
      }
    }

    GetCurrQuestion (i) {
      if (logElementGetting) { Log('getting curr questions by index: ' + i) }
      return document.getElementsByTagName('form')[0].childNodes[0].childNodes[i].childNodes[1].childNodes[0].innerText
    }

    GetFormResult () {
      if (logElementGetting) { Log('getting form result') }
      var t = document.getElementsByTagName('form')[0].childNodes[0].childNodes
      if (t.length > 0 && t[0].tagName === undefined) { // debreceni moodle
        return document.getElementsByTagName('form')[1].childNodes[0].childNodes
      } else {
        return t
      }
    }

    GetAnswerNode (i) {
      if (logElementGetting) { Log('getting answer node') }

      var results = this.GetFormResult() // getting results element

      var r = results[i].getElementsByClassName('answer')[0].childNodes
      var ret = []
      for (var j = 0; j < r.length; j++) {
        if (r[j].tagName !== undefined && r[j].tagName.toLowerCase() === 'div') { ret.push(r[j]) }
      }

      let qtype = this.DetermineQuestionType(ret)

      return {
        nodes: ret,
        type: qtype
      }
    }

    GetCurrentAnswer (i) {
      if (logElementGetting) { Log('getting curr answer by index: ' + i) }
      var results = this.GetFormResult() // getting results element
      var t = results[i].getElementsByClassName('formulation clearfix')[0].getElementsByTagName('span')
      if (t.length > 2) { return t[1].innerHTML.split('<br>')[1] }
    }

    GetQText (i) {
      if (logElementGetting) { Log('getting qtext by index: ' + i) }
      var results = this.GetFormResult() // getting results element
      return results[i].getElementsByClassName('qtext')
    }

    GetDropboxes (i) {
      if (logElementGetting) { Log('getting dropboxes by index: ' + i) }
      var results = this.GetFormResult() // getting results element
      return results[i].getElementsByTagName('select')
    }

    GetAllAnswer (index) {
      if (logElementGetting) { Log('getting all answers, ind: ' + index) }
      return document.getElementsByClassName('answer')[index].childNodes
    }

    GetPossibleAnswers (i) {
      if (logElementGetting) { Log('getting possible answers') }
      var results = this.GetFormResult() // getting results element
      var items = results[i].getElementsByTagName('label')
      var r = []
      for (var j = 0; j < items.length; j++) {
        const TryGetCorrect = (j) => {
          var cn = items[j].parentNode.className
          if (cn.includes('correct')) { return cn.includes('correct') && !cn.includes('incorrect') }
        }
        r.push({
          value: items[j].innerText,
          iscorrect: TryGetCorrect(j)
        })
      }
      return r
    }

    GetAnswersFromGrabBox (i) {
      try {
        if (logElementGetting) { Log('testing if question is grab-box') }
        let results = this.GetFormResult() // getting results element
        let t = results[i].getElementsByClassName('dragitems')[0].childNodes
        if (t.length !== 1) { Log('grab box drag items group length is not 1!'); Log(results[i].getElementsByClassName('dragitems')[0]) }
        let placedItems = t[0].getElementsByClassName('placed')
        let res = []
        for (let i = 0; i < placedItems.length; i++) {
          let item = placedItems[i]
          res.push({
            text: item.innerText,
            left: item.style.left,
            top: item.style.top
          })
        }
        return res
      } catch (e) {

      }
    }

    GetRightAnswerIfCorrectShown (i) {
      if (logElementGetting) { Log('getting right answer if correct shown') }
      var results = this.GetFormResult() // getting results element
      return results[i].getElementsByClassName('rightanswer')
    }

    GetWrongAnswerIfCorrectNotShown (i) {
      if (logElementGetting) { Log('getting wrong answer if correct not shown') }
      var results = this.GetFormResult() // getting results element
      var n = results[i].getElementsByTagName('i')[0].parentNode
      if (n.className.includes('incorrect')) { return results[i].getElementsByTagName('i')[0].parentNode.innerText } else { return '' }
    }

    GetRightAnswerIfCorrectNotShown (i) {
      if (logElementGetting) { Log('Getting right answer if correct not shown') }
      var results = this.GetFormResult() // getting results element
      var n = results[i].getElementsByTagName('i')[0].parentNode
      if (n.className.includes('correct') && !n.className.includes('incorrect')) {
        return results[i].getElementsByTagName('i')[0].parentNode.innerText
      }
    }

    GetFormCFOfResult (result) {
      if (logElementGetting) { Log('getting formulation clearfix') }
      return result.getElementsByClassName('formulation clearfix')[0]
    }

    GetResultText (i) {
      if (logElementGetting) { Log('getting result text') }
      var results = this.GetFormResult() // getting results element
      return this.GetFormCFOfResult(results[i]).getElementsByTagName('p')
    }

    GetResultImage (i) {
      if (logElementGetting) { Log('getting result image') }
      var results = this.GetFormResult() // getting results element
      return this.GetFormCFOfResult(results[i]).getElementsByTagName('img')
    }

    // gets the question from the result page
    // i is the index of the question
    GetQuestionFromResult (i) {
      var temp = this.GetQText(i)
      var currQuestion = ''
      if (temp.length > 0) {
        currQuestion = temp[0].innerText // adding the question to curr question as .q
      } else {
        // this is black magic fuckery a bit
        if (this.GetDropboxes(i).length > 0) {
          var allNodes = this.GetResultText(i)
          currQuestion = ''
          for (var k = 0; k < allNodes.length; k++) {
            var allQuestions = this.GetResultText(i)[k].childNodes
            for (var j = 0; j < allQuestions.length; j++) {
              if (allQuestions[j].data !== undefined && !SUtils.EmptyOrWhiteSpace(allQuestions[j].data)) {
                currQuestion += allQuestions[j].data + ' '
              }
            }
          }
        } else {
          try {
            currQuestion = this.GetCurrQuestion(i)
          } catch (e) {
            currQuestion = 'REEEEEEEEEEEEEEEEEEEEE' // this shouldnt really happen sry guys
            Log('Unable to get question in GetQuestionFromResult')
          }
        }
      }
      return currQuestion
    }

    // tries to get right answer from result page
    // i is the index of the question
    GetRightAnswerFromResult (i) {
      var fun = []

      // "húzza oda ..." skip
      fun.push((i) => {
        let temp = RPM.GetAnswersFromGrabBox(i)
        return temp.map((x) => {
          return x.text
        }).join(', ')
      })

      // the basic type of getting answers
      fun.push((i) => {
        var temp = RPM.GetRightAnswerIfCorrectShown(i) // getting risht answer
        if (temp.length > 0) { return temp[0].innerText } // adding the answer to curr question as .a
      })

      // if there is dropdown list in the current question
      fun.push((i) => {
        if (RPM.GetDropboxes(i).length > 0) { return RPM.GetCurrentAnswer(i) }
      })

      // if the correct answers are not shown, and the selected answer
      // is correct
      fun.push((i) => {
        return RPM.GetRightAnswerIfCorrectNotShown(i)
      })

      // if there is dropbox in the question
      fun.push((i) => {
        return RPM.GetSelectAnswer(i)
      })

      // if the correct answers are not shown, and the selected answer
      // is incorrect, and there are only 2 options
      fun.push((i) => {
        var possibleAnswers = RPM.GetPossibleAnswers(i)
        if (possibleAnswers.length === 2) {
          for (var k = 0; k < possibleAnswers.length; k++) {
            if (possibleAnswers[k].iscorrect === undefined) { return possibleAnswers[k].value }
          }
        }
      })

      // if everything fails
      fun.push((i) => {
        return undefined
      })

      var j = 0
      var currAnswer
      while (j < fun.length && SUtils.EmptyOrWhiteSpace(currAnswer)) {
        try {
          currAnswer = fun[j](i)
        } catch (e) {
        }
        j++
      }

      return currAnswer
    }

    // version 2 of getting right answer from result page
    // i is the index of the question
    GetRightAnswerFromResultv2 (i) {
      try {
        var answerNodes = this.GetAnswerNode(i)
        let items = answerNodes.nodes

        if (answerNodes.type === 'checkbox') { return RPM.GetRightAnswerFromResult(i) }

        for (let j = 0; j < items.length; j++) {
          let cn = items[j].className
          if (cn.includes('correct') && !cn.includes('incorrect')) {
            return items[j].getElementsByTagName('label')[0].innerText
          }
        }
        if (items.length === 2) {
          for (let j = 0; j < items.length; j++) {
            let cn = items[j].className
            if (!cn.includes('correct')) { return items[j].innerText }
          }
        }
      } catch (e) {
        Log('error at new nodegetting, trying the oldschool way')
      }
    }
  }

  class MiscPageModell {
    GetCurrentSubjectName () {
      if (logElementGetting) { Log('getting current subjects name') }
      return document.getElementById('page-header').innerText.split('\n')[0] || ''
    }

    GetVideo () {
      if (logElementGetting) { Log('getting video stuff') }
      return document.getElementsByTagName('video')[0]
    }

    GetVideoElement () {
      if (logElementGetting) { Log('getting video element') }
      return document.getElementById('videoElement').parentNode
    }

    GetInputType (answers, i) {
      if (logElementGetting) { Log('getting input type') }
      return answers[i].getElementsByTagName('input')[0].type
    }
  }

  var QPM = new QuestionsPageModell()
  var RPM = new ResultsPageModell()
  var MPM = new MiscPageModell()

  // : }}}

  // : Main function {{{
  let timerStarted = false

  Main()
  function Main () {
    'use strict'
    console.time('main')
    timerStarted = true

    Init()
  }

  function AfterLoad () {
    const url = location.href // eslint-disable-line

    try {
      if ((url.includes('/quiz/') && url.includes('attempt.php')) || forceTestPage) { // if the current page is a test
        HandleQuiz()
      } else if ((url.includes('/quiz/') && url.includes('review.php')) || forceResultPage) { // if the current window is a test-s result
        HandleResults(url)
      } else if ((!url.includes('/quiz/') && !url.includes('review.php') && !url.includes('.pdf')) ||
            (forceDefaultPage)) { // if the current window is any other window than a quiz or pdf.
        HandleUI(url)
      }
    } catch (e) {
      ShowMessage({
        m: texts.fatalError,
        isSimple: true
      }, undefined, () => {
        OpenErrorPage(e)
      })

      Exception(e, 'script error at main:')
    }
    if (url.includes('eduplayer')) { AddVideoHotkeys(url) } // adding video hotkeys
    Log(texts.consoleErrorInfo)

    if (timerStarted) {
      console.log('Moodle Test Script run time:')
      console.timeEnd('main')
      timerStarted = false
    }

    if (forceTestPage || forceResultPage || forceDefaultPage) {
      if (document.getElementById('scriptMessage')) {
        document.getElementById('scriptMessage').style.background = 'green'
      }
    }
  }
  // : }}}

  // : Main logic stuff {{{

  // : Loading {{{
  function HandleQminingSite (url) {
    try {
      const sideLinks = document.getElementById('sideBarLinks')
      if (!sideLinks) {
        return
      }
      Array.from(sideLinks.childNodes).forEach((link) => {
        link.addEventListener('mousedown', () => {
          FillFeedbackCID(url, link)
        })
      })

      FillFeedbackCID(url,
        document.getElementById('sideBarLinks').getElementsByClassName('active')[0]
      )
    } catch (e) {
      console.info('Error filling client ID input', e)
    }
  }

  function FillFeedbackCID (url, link) {
    try {
      if (link.id === 'feedback') {
        const cidSetInterval = setInterval(() => {
          const cid = document.getElementById('cid')
          if (cid) {
            cid.value = GetId() + '|' + info().script.version
            window.clearInterval(cidSetInterval)
          }
        }, 100)
      }
    } catch (e) {
      console.info('Error filling client ID input', e)
    }
  }

  function Init () {
    const url = location.href // eslint-disable-line

    if (url.includes(serverAdress.split('/')[2])) {
      HandleQminingSite(url)
      return
    }

    if (false) { // eslint-disable-line
      setVal('version16', undefined)
      setVal('version15', undefined)
      setVal('firstRun', undefined)
      setVal('showQuestions', undefined)
      setVal('showSplash', undefined)
    }
    // --------------------------------------------------------------------------------------
    // event listener fuckery
    // --------------------------------------------------------------------------------------
    try {
      // adding addeventlistener stuff, for the ability to add more event listeners for the same event
      addEventListener = (function () {
        if (document.addEventListener) {
          return function (element, event, handler) {
            element.addEventListener(event, handler, false)
          }
        } else {
          return function (element, event, handler) {
            element.attachEvent('on' + event, handler)
          }
        }
      }())
    } catch (e) {
      Exception(e, 'script error at addEventListener:')
    }
    VersionActions()
    if (!url.includes('.pdf')) { ShowMenu() }
    if (!getVal('skipLoad')) {
      ConnectToServer(AfterLoad)
    }
  }

  function Auth (pw) {
    SendXHRMessage('login', { pw: pw, script: true })
      .then((res) => {
        if (res.result === 'success') {
          ConnectToServer(AfterLoad)
          ClearAllMessages()
          setPassiveButtonState(false)
        } else {
          SafeGetElementById('infoMainDiv', (elem) => {
            elem.innerText = texts.invalidPW + pw
          })
        }
      })
  }

  function ConnectToServer (cwith) {
    ClearAllMessages()
    GetXHRInfos().then((inf) => {
      if (inf.result === 'nouser') {
        NoUserAction()
        return
      }
      lastestVersion = inf.version
      motd = inf.motd
      subjInfo = inf.subjinfo
      document.getElementById('infoMainDiv').innerText = `${subjInfo.subjects} tárgy, ${subjInfo.questions} kérdés`
      // FIXME: if cwith() throws an unhandled error it sais server is not avaible
      cwith()
    }).catch(() => {
      NoServerAction()
    })
  }

  function NoUserAction () {
    SafeGetElementById('menuButtonDiv', (elem) => {
      elem.style.backgroundColor = '#44cc00'
    })
    SafeGetElementById('infoMainDiv', (elem) => {
      elem.innerText = texts.noUser
    })
    SafeGetElementById('loginDiv', (elem) => {
      elem.style.display = ''
    })
  }

  function NoServerAction () {
    SafeGetElementById('menuButtonDiv', (elem) => {
      elem.style.backgroundColor = 'red'
    })
    SafeGetElementById('infoMainDiv', (elem) => {
      elem.innerText = texts.noServer
    })
    SafeGetElementById('ircButton', (elem) => {
      elem.style.display = ''
    })
    SafeGetElementById('retryButton', (elem) => {
      elem.style.display = ''
    })
    Log(texts.noServerConsoleMessage)
  }

  function VersionActions () {
    // FOR TESTING ONLY
    // setVal("version15", true);
    // setVal("firstRun", true);
    // setVal("version16", true);
    // throw "asd";

    FreshStart()
  }

  // : Version action functions {{{

  function FreshStart () {
    var firstRun = getVal('firstRun') // if the current run is the frst
    if (firstRun === undefined || firstRun === true) {
      setVal('firstRun', false)
      ShowHelp() // showing help

      document.write(texts.freshStartWarning)
      document.close()
      throw new Error('something, so this stuff stops')
    }
  }

  // : }}}

  // : UI handling {{{
  function HandleUI (url) {
    // FIXME: normal string building with localisation :/
    var newVersion = false // if the script is newer than last start

    try {
      newVersion = info().script.version !== getVal('lastVerson')
    } catch (e) {
      Log('Some weird error trying to set new verison')
    }

    let showMOTD = false
    if (!SUtils.EmptyOrWhiteSpace(motd)) {
      var prevmotd = getVal('motd')
      if (prevmotd !== motd) {
        showMOTD = true
        setVal('motdcount', motdShowCount)
        setVal('motd', motd)
      } else {
        var motdcount = getVal('motdcount')
        if (motdcount === undefined) {
          setVal('motdcount', motdShowCount)
          motdcount = motdShowCount
        }

        motdcount--
        if (motdcount > 0) {
          showMOTD = true
          setVal('motdcount', motdcount)
        }
      }
    }
    let isNewVersionAvaible = lastestVersion !== undefined && info().script.version !== lastestVersion
    var greetMsg = '' // message to show at the end
    var timeout = null // the timeout. if null, it wont be hidden

    if (isNewVersionAvaible || newVersion || showMOTD) {
      greetMsg = 'Moodle/Elearning/KMOOC segéd v. ' + info().script.version + '. '
    }
    if (isNewVersionAvaible) {
      timeout = 5
      greetMsg += 'Új verzió elérhető: ' + lastestVersion
      timeout = undefined
    }
    if (newVersion) { // --------------------------------------------------------------------------------------------------------------
      greetMsg += 'Verzió frissítve ' + info().script.version + '-re. Changelog:\n' + texts.lastChangeLog
      setVal('lastVerson', info().script.version) // setting lastVersion
    }
    if (showMOTD) {
      greetMsg += '\nMOTD:\n' + motd
      timeout = null
    }

    ShowMessage({
      m: greetMsg,
      isSimple: true
    }, timeout) // showing message. If "m" is empty it wont show it, thats how showSplash works.
  }

  // : }}}

  // : Answering stuffs {{{

  function HandleQuiz () {
    var q = QPM.GetQuestionFromTest()
    var questions = q.q
    var imgNodes = q.imgnodes
    // ------------------------------------------------------------------------------------------------------
    let promises = []
    questions.forEach((x) => {
      let question = SUtils.EmptyOrWhiteSpace(x) ? '' : SUtils.RemoveUnnecesarySpaces(x) // simplifying question
      promises.push(GetXHRQuestionAnswer({
        q: question,
        data: GetImageDataFromImgNodes(imgNodes),
        subj: MPM.GetCurrentSubjectName()
      }))
    })

    // FIXME: promise.all promise resolve order same as original?
    Promise.all(promises).then((res) => {
      let answers = []

      res.forEach((result, j) => {
        var r = PrepareAnswers(result, j)
        if (r !== undefined) { answers.push(r) }
        HighLightAnswer(result, j) // highlights the answer for the current result
      })

      ShowAnswers(answers, q.q)
    })
  }

  function PrepareAnswers (result, j) {
    assert(result)

    if (result.length > 0) {
      var allMessages = [] // preparing all messages
      for (var k = 0; k < result.length; k++) {
        var msg = '' // the current message
        if ((getVal('showQuestions') === undefined) || getVal('showQuestions')) {
          msg += result[k].q.Q + '\n' // adding the question if yes
        }
        msg += result[k].q.A.replace(/, /g, '\n') // adding answer
        if (result[k].q.data.type === 'image') {
          msg += '\n\nKépek fenti válaszok sorrendjében: ' + result[k].q.data.images.join(', ') // if it has image part, adding that too
        }
        allMessages.push({
          m: msg,
          p: result[k].match
        })
      }
      return allMessages
    }
  }

  function ShowAnswers (answers, question) {
    assert(answers)

    if (answers.length > 0) { // if there are more than 0 answer
      ShowMessage(answers)
    } else {
      ShowMessage({
        m: texts.noResult,
        isSimple: true
      }, undefined, function () {
        OpenErrorPage({
          message: 'No result found',
          stack: JSON.stringify(question)
        })
      })
    }
  }

  // : }}}

  // : Quiz saving {{{

  function HandleResults (url) {
    SaveQuiz(
      GetQuiz(),
      ShowSaveQuizDialog
    ) // saves the quiz questions and answers
  }

  function ShowSaveQuizDialog (sendResult, sentData, newQuestions) {
    // FIXME: normal string building with localisation :/
    var msg = ''
    if (sendResult) {
      msg = 'Kérdések elküldve, katt az elküldött adatokért.'
      if (newQuestions > 0) {
        msg += ' ' + newQuestions + ' új kérdés'
      } else {
        msg += ' Nincs új kérdés'
      }
    } else {
      msg = 'Szerver nem elérhető, vagy egyéb hiba kérdések elküldésénél! (F12 -> Console)'
    }
    // showing a message wit the click event, and the generated page
    ShowMessage({
      m: msg,
      isSimple: true
    }, null, function () {
      let towrite = ''
      try {
        towrite += '</p>Elküldött adatok:</p> ' + JSON.stringify(sentData)
      } catch (e) {
        towrite += '</p>Elküldött adatok:</p> ' + sentData
      }
      document.write(towrite)
      document.close()
    })
  }

  // this should get the image url from a result page
  // i is the index of the question
  // FIXME: move this to RPM class ??? and refactor this
  function GetImageFormResult (i) {
    try {
      var imgElements = RPM.GetResultImage(i) // trying to get image
      var imgURL = [] // image urls
      for (var j = 0; j < imgElements.length; j++) {
        if (!imgElements[j].src.includes('brokenfile')) {
          var filePart = imgElements[j].src.split('/') // splits the link by "/"
          filePart = filePart[filePart.length - 1] // the last one is the image name
          imgURL.push(decodeURI(SUtils.ShortenString(filePart, 30)))
        }
      }
      if (imgURL.length > 0) {
        return imgURL
      }
    } catch (e) {
      Log("Couldn't get images from result")
    }
  }

  function GetDataFormResult (i) {
    let data = { type: 'simple' }

    let img = GetImageFormResult(i)
    let grabbox = RPM.GetAnswersFromGrabBox(i)
    if (img) {
      data = {
        type: 'image',
        images: img
      }
    }
    if (grabbox) {
      data = {
        type: 'grabbox',
        images: img,
        grabbox: grabbox
      }
    }

    return data
  }

  // saves the current quiz. questionData contains the active subjects questions
  function SaveQuiz (quiz, next) {
    try {
      let sentData = {}
      if (quiz.length === 0) {
        throw new Error('quiz length is zero!')
      }
      try {
        try {
          sentData.subj = MPM.GetCurrentSubjectName()
        } catch (e) {
          sentData.subj = 'NOSUBJ'
          Log('unable to get subject name :c')
        }
        sentData.version = info().script.version
        sentData.id = GetId()
        sentData.quiz = quiz
        console.log('SENT DATA', sentData)
        SendXHRMessage('isAdding', sentData).then((res) => {
          next(res.success, sentData, res.newQuestions)
        })
      } catch (e) {
        Exception(e, 'error at sending data to server.')
      }
    } catch (e) {
      Exception(e, 'script error at saving quiz')
    }
  }

  // getting quiz from finish page
  function GetQuiz () {
    try {
      var quiz = [] // final quiz stuff
      var results = RPM.GetFormResult() // getting results element
      for (var i = 0; i < results.length - 2; i++) {
        var question = {} // the current question
        // QUESTION --------------------------------------------------------------------------------------------------------------------
        question.Q = RPM.GetQuestionFromResult(i)

        // RIGHTANSWER ---------------------------------------------------------------------------------------------------------------------
        question.A = RPM.GetRightAnswerFromResultv2(i)
        if (question.A === undefined) { question.A = RPM.GetRightAnswerFromResult(i) }
        // DATA ---------------------------------------------------------------------------------------------------------------------
        question.data = GetDataFormResult(i)

        if (question.A !== undefined) {
          quiz.push(question) // adding current question to quiz
        } else {
          Log('error getting queston, no correct answer given, or its incorrect')
          Log(question)
        }
      }
      return quiz
    } catch (e) {
      Exception(e, 'script error at quiz parsing:')
    }
  }

  // : }}}

  // : Helpers {{{

  function GetImageDataFromImgNodes (imgs) {
    var questionImages = [] // the array for the image names in question
    for (var i = 0; i < imgs.length; i++) {
      if (!imgs[i].src.includes('brokenfile')) {
        var filePart = imgs[i].src.split('/') // splits the link by "/"
        filePart = filePart[filePart.length - 1] // the last one is the image name
        questionImages.push(decodeURI(SUtils.RemoveUnnecesarySpaces(SUtils.ShortenString(filePart, 30)))) // decodes uri codes, and removes exess spaces, and shortening it
      }
    }
    if (questionImages.length > 0) {
      return {
        type: 'image',
        images: questionImages
      }
    } else {
      return {
        type: 'simple'
      }
    }
  }

  // adds image names to image nodes
  function AddImageNamesToImages (imgs) {
    for (var i = 0; i < imgs.length; i++) {
      if (!imgs[i].src.includes('brokenfile')) {
        var filePart = imgs[i].src.split('/') // splits the link by "/"
        filePart = filePart[filePart.length - 1] // the last one is the image name
        var appedtTo = imgs[i].parentNode // it will be appended here
        var mainDiv = document.createElement('div')
        var fileName = SUtils.ShortenString(decodeURI(filePart), 15) // shortening name, couse it can be long as fuck
        var textNode = document.createTextNode('(' + fileName + ')')
        mainDiv.appendChild(textNode)
        appedtTo.appendChild(mainDiv)
      }
    }
  }

  // this function adds basic hotkeys for video controll.
  function AddVideoHotkeys (url) {
    var seekTime = 20
    document.addEventListener('keydown', function (e) {
      try {
        var video = MPM.GetVideo()
        var keyCode = e.keyCode // getting keycode
        if (keyCode === 32) { // if the keycode is 32 (space)
          e.preventDefault() // preventing default action (space scrolles down)
          if (video.paused && video.buffered.length > 0) {
            video.play()
          } else {
            video.pause()
          }
        }
        if (keyCode === 39) { // rigth : 39
          video.currentTime += seekTime
        }
        if (keyCode === 37) { // left : 37
          video.currentTime -= seekTime
        }
      } catch (err) {
        Log('Hotkey error.')
        Log(err.message)
      }
    })
    var toadd = MPM.GetVideoElement()
    var node = CreateNodeWithText(toadd, texts.videoHelp)
    node.style.margin = '5px 5px 5px 5px' // fancy margin
  }

  // removes stuff like " a. q1" -> "q1"
  function RemoveLetterMarking (inp) {
    let dotIndex = inp.indexOf('.')
    let doubledotIndex = inp.indexOf(':')
    let maxInd = 4 // inp.length * 0.2;

    if (dotIndex < maxInd) { return SUtils.RemoveUnnecesarySpaces(inp.substr(inp.indexOf('.') + 1, inp.length)) } else if (doubledotIndex < maxInd) { return SUtils.RemoveUnnecesarySpaces(inp.substr(inp.indexOf(':') + 1, inp.length)) } else { return inp }
  }

  // highlights the possible solutions to the current question
  function HighLightAnswer (results, currQuestionNumber) {
    try {
      if (results.length > 0) {
        var answers = RPM.GetAllAnswer(currQuestionNumber) // getting all answers
        var toColor = [] // the numberth in the array will be colored, and .length items will be colored
        var type = '' // type of the question. radio or ticbox or whatitscalled
        for (let i = 0; i < answers.length; i++) { // going thtough answers
          if (answers[i].tagName && answers[i].tagName.toLowerCase() === 'div') { // if its not null and is "div"
            var correct = results[0].q.A.toLowerCase() // getting current correct answer from data
            var answer = answers[i].innerText.replace(/\n/g, '').toLowerCase() // getting current answer

            // removing stuff like "a."
            answer = RemoveLetterMarking(answer)

            if (SUtils.EmptyOrWhiteSpace(correct) || SUtils.EmptyOrWhiteSpace(answer)) { continue }

            if (SUtils.NormalizeSpaces(SUtils.RemoveUnnecesarySpaces(correct)).includes(answer)) { // if the correct answer includes the current answer
              toColor.push(i) // adding the index
              type = MPM.GetInputType(answers, i) // setting the type
            }
          }
        }
        if (results[0].match === 100) { // if the result is 100% correct
          if (type !== 'radio' || toColor.length === 1) { // FIXME why not radio
            for (let i = 0; i < toColor.length; i++) { // going through "toColor"
              answers[toColor[i]].style.backgroundColor = '#8cff66'
            }
          }
        } // and coloring the correct index
      }
    } catch (e) { // catching errors. Sometimes there are random errors, wich i did not test, but they are rare, and does not break the main script.
      Log('script error at highlightin answer: ' + e.message)
    }
  }

  // : }}}

  function Log (value) {
    if (log) { console.log(value) }
  }

  function Exception (e, msg) {
    Log('------------------------------------------')
    Log(msg)
    Log(e.message)
    Log('------------------------------------------')
    Log(e.stack)
    Log('------------------------------------------')
  }

  // : }}}

  // : Minor UI stuff {{{
  function ClearAllMessages () {
    let elem = document.getElementById('scriptMessage')
    while (elem) {
      elem.parentNode.removeChild(elem)
      elem = document.getElementById('scriptMessage')
    }
  }

  // shows a message with "msg" text, "matchPercent" tip and transp, and "timeout" time
  function ShowMessage (msgItem, timeout, funct) {
    // msgItem help:
    // [ [ {}{}{}{} ] [ {}{}{} ] ]
    // msgItem[] <- a questions stuff
    // msgItem[][] <- a questions relevant answers array
    // msgItem[][].p <- a questions precent
    // msgItem[][].m <- a questions message
    try {
      var defMargin = '0px 5px 0px 5px'
      var isSimpleMessage = false
      var simpleMessageText = ''
      if (msgItem.isSimple) { // parsing msgItem for easier use
        simpleMessageText = msgItem.m
        if (simpleMessageText === '') { // if msg is empty
          return
        }
        msgItem = [
          [{
            m: simpleMessageText
          }]
        ]
        isSimpleMessage = true
      }

      var appedtTo = document.body // will be appended here
      var width = window.innerWidth - window.innerWidth / 6 // with of the box
      var startFromTop = 25 // top distance

      var mainDiv = document.createElement('div') // the main divider, wich items will be attached to
      mainDiv.setAttribute('id', 'messageMainDiv')
      if (funct) { // if there is a function as parameter
        addEventListener(mainDiv, 'click', funct) // adding it as click
      }
      // lotsa crap style
      SetStyle(mainDiv, {
        position: 'fixed',
        zIndex: 999999,
        textAlign: 'center',
        width: width + 'px',
        padding: '0px',
        background: '#222d32',
        color: '#ffffff',
        borderColor: '#035a8f',
        border: 'none',
        top: (startFromTop) + 'px',
        left: (window.innerWidth - width) / 2 + 'px',
        opacity: '0.9'
      })
      mainDiv.setAttribute('id', 'scriptMessage')
      var matchPercent = msgItem[0][0].p
      if (isSimpleMessage) {
        var simpleMessageParagrapg = document.createElement('p') // new paragraph
        simpleMessageParagrapg.style.margin = defMargin // fancy margin

        var mesageNode = document.createElement('p') // new paragraph
        mesageNode.innerHTML = simpleMessageText.replace(/\n/g, '</br>')
        simpleMessageParagrapg.appendChild(mesageNode)
        mesageNode.style.margin = defMargin // fancy margin

        mainDiv.appendChild(simpleMessageParagrapg) // adding text box to main div
      } else { // if its a fucking complicated message
        // TABLE SETUP ------------------------------------------------------------------------------------------------------------
        var table = document.createElement('table')
        table.style.width = '100%'
        // ROWS -----------------------------------------------------------------------------------------------------
        var rowOne = table.insertRow() // previous suggestion, question text, and prev question
        var rowTwo = table.insertRow() // next question button
        var rowThree = table.insertRow() // next suggetsion button
        // CELLS -----------------------------------------------------------------------------------------------------
        // row one
        var numberTextCell = rowOne.insertCell()
        var questionCell = rowOne.insertCell() // QUESTION CELL
        questionCell.setAttribute('id', 'questionCell')
        questionCell.rowSpan = 3
        questionCell.style.width = '90%'
        var prevQuestionCell = rowOne.insertCell()
        // row two
        var percentTextCell = rowTwo.insertCell()
        var nextQuestionCell = rowTwo.insertCell()
        // row three
        var prevSuggestionCell = rowThree.insertCell()
        var nextSuggestionCell = rowThree.insertCell()
        // adding finally
        mainDiv.appendChild(table)
        // PERCENT TEXT SETUP -----------------------------------------------------------------------------------------------------
        var percentTextBox = CreateNodeWithText(percentTextCell, '')
        percentTextBox.setAttribute('id', 'percentTextBox')

        if (matchPercent) { // if match percent param is not null
          percentTextBox.innerText = matchPercent + '%'
        }
        // NUMBER SETUP -----------------------------------------------------------------------------------------------------
        var numberTextBox = CreateNodeWithText(numberTextCell, '1.')
        numberTextBox.setAttribute('id', 'numberTextBox')

        // ANSWER NODE SETUP -------------------------------------------------------------------------------------------------------------
        var questionTextElement = CreateNodeWithText(questionCell, 'ur question goes here, mister OwO')
        questionTextElement.setAttribute('id', 'questionTextElement')

        // BUTTON SETUP -----------------------------------------------------------------------------------------------------------
        var currItem = 0
        var currRelevantQuestion = 0

        const GetRelevantQuestion = () => { // returns the currItemth questions currRelevantQuestionth relevant question
          return msgItem[currItem][currRelevantQuestion]
        }

        const ChangeCurrItemIndex = (to) => {
          currItem += to
          if (currItem < 0) {
            currItem = 0
          }
          if (currItem > msgItem.length - 1) {
            currItem = msgItem.length - 1
          }
          currRelevantQuestion = 0
        }

        const ChangeCurrRelevantQuestionIndex = (to) => {
          currRelevantQuestion += to
          if (currRelevantQuestion < 0) {
            currRelevantQuestion = 0
          }
          if (currRelevantQuestion > msgItem[currItem].length - 1) {
            currRelevantQuestion = msgItem[currItem].length - 1
          }
        }

        const SetQuestionText = () => {
          var relevantQuestion = GetRelevantQuestion()
          questionTextElement.innerText = relevantQuestion.m
          if (currItem === 0 && currRelevantQuestion === 0) {
            numberTextBox.innerText = (currRelevantQuestion + 1) + '.'
          } else {
            numberTextBox.innerText = (currItem + 1) + './' + (currRelevantQuestion + 1) + '.'
          }
          percentTextBox.innerText = relevantQuestion.p + '%'
        }

        var buttonMargin = '2px 2px 2px 2px' // uniform button margin
        if (msgItem[currItem].length > 1) {
          // PREV SUGG BUTTON ------------------------------------------------------------------------------------------------------------
          var prevSuggButton = CreateNodeWithText(prevSuggestionCell, '<', 'button')
          prevSuggButton.style.margin = buttonMargin // fancy margin

          prevSuggButton.addEventListener('click', function () {
            ChangeCurrRelevantQuestionIndex(-1)
            SetQuestionText()
          })
          // NEXT SUGG BUTTON ------------------------------------------------------------------------------------------------------------
          var nextSuggButton = CreateNodeWithText(nextSuggestionCell, '>', 'button')
          nextSuggButton.style.margin = buttonMargin // fancy margin

          nextSuggButton.addEventListener('click', function () {
            ChangeCurrRelevantQuestionIndex(1)
            SetQuestionText()
          })
        }
        // deciding if has multiple questions ------------------------------------------------------------------------------------------------
        if (msgItem.length === 1) {
          SetQuestionText()
        } else { // if there are multiple items to display
          // PREV QUESTION BUTTON ------------------------------------------------------------------------------------------------------------
          var prevButton = CreateNodeWithText(prevQuestionCell, '^', 'button')
          prevButton.style.margin = buttonMargin // fancy margin

          // event listener
          prevButton.addEventListener('click', function () {
            ChangeCurrItemIndex(-1)
            SetQuestionText()
          })
          // NEXT QUESTION BUTTON ------------------------------------------------------------------------------------------------------------
          var nextButton = CreateNodeWithText(nextQuestionCell, 'ˇ', 'button')
          nextButton.style.margin = buttonMargin // fancy margin

          // event listener
          nextButton.addEventListener('click', function () {
            ChangeCurrItemIndex(1)
            SetQuestionText()
          })
          SetQuestionText()
        }
      }
      appedtTo.appendChild(mainDiv) // THE FINAL APPEND

      // setting some events
      // addEventListener(window, 'scroll', function () {
      //   mainDiv.style.top = (pageYOffset + startFromTop) + 'px';
      // })
      addEventListener(window, 'resize', function () {
        mainDiv.style.left = (window.innerWidth - width) / 2 + 'px'
      })
      var timeOut
      if (timeout && timeout > 0) { // setting timeout if not zero or null
        timeOut = setTimeout(function () {
          mainDiv.parentNode.removeChild(mainDiv)
        }, timeout * 1000)
      }
      // middle click close event listener
      addEventListener(mainDiv, 'mousedown', function (e) {
        if (e.which === 2) {
          mainDiv.parentNode.removeChild(mainDiv)
          if (timeOut) {
            clearTimeout(timeOut)
          }
        }
      })
    } catch (e) {
      Exception(e, 'script error at showing message:')
    }
  }

  // shows a fancy menu
  function ShowMenu () {
    try {
      var appedtTo = document.body // will be appended here

      // mainDiv.style.left = (window.innerWidth - width) / 2 + 'px';

      var menuButtonDiv = document.createElement('div')
      menuButtonDiv.setAttribute('id', 'menuButtonDiv')
      SetStyle(menuButtonDiv, {
        // width: buttonWidth + 'px',
        // height: buttonHeight + 'px',
        top: (window.innerHeight - 120) + 'px',
        left: '10px',
        zIndex: 999999,
        position: 'fixed',
        textAlign: 'center',
        padding: '0px',
        margin: '0px',
        background: '#262626'
      })

      var tbl = document.createElement('table')
      tbl.style.margin = '5px 5px 5px 5px'
      tbl.style.textAlign = 'left'
      tbl.style.width = '98%'
      menuButtonDiv.appendChild(tbl)

      var buttonRow = tbl.insertRow()
      var buttonCell = buttonRow.insertCell()
      buttonCell.style.textAlign = 'center'

      let buttonStyle = {
        position: '',
        margin: '5px 5px 5px 5px',
        border: 'none',
        backgroundColor: '#222d32',
        color: '#ffffff',
        cursor: 'pointer'
      }
      // help button ----------------------------------------------------------------------------------------------------------------
      let helpButton = CreateNodeWithText(buttonCell, texts.help, 'button')
      SetStyle(helpButton, buttonStyle)

      helpButton.addEventListener('click', function () {
        ShowHelp()
      }) // adding clicktextNode

      // site link ----------------------------------------------------------------------------------------------------------------

      let siteLink = CreateNodeWithText(buttonCell, texts.websiteBugreport, 'button')
      SetStyle(siteLink, buttonStyle)

      siteLink.addEventListener('click', function () {
        location.href = serverAdress + 'menuClick' // eslint-disable-line
      })

      // donate link ----------------------------------------------------------------------------------------------------------------
      let donateLink = CreateNodeWithText(buttonCell, texts.donate, 'button')
      SetStyle(donateLink, buttonStyle)

      donateLink.addEventListener('click', function () {
        openInTab(serverAdress + 'donate?scriptMenu', {
          active: true
        })
      })

      addEventListener(window, 'resize', function () {
        menuButtonDiv.style.top = (window.innerHeight - 70) + 'px'
      })

      // INFO TABEL --------------------------------------------------------------------
      var itbl = document.createElement('table')
      SetStyle(itbl, {
        margin: '5px 5px 5px 5px',
        textAlign: 'left',
        width: '98%'
      })
      menuButtonDiv.appendChild(itbl)
      var ibuttonRow = tbl.insertRow()
      var ibuttonCell = ibuttonRow.insertCell()
      ibuttonCell.style.textAlign = 'center'

      // INFO DIV ---------------------------------------------------------------------------------
      let infoDiv = CreateNodeWithText(ibuttonCell, texts.loading, 'span')
      infoDiv.setAttribute('id', 'infoMainDiv')
      SetStyle(infoDiv, {
        color: '#ffffff',
        margin: '5px'
      })

      // login div ----------------------------------------------------------------------------------------------------------------
      const loginDiv = document.createElement('div')
      loginDiv.style.display = 'none'
      loginDiv.setAttribute('id', 'loginDiv')
      const loginButton = document.createElement('button')
      loginButton.innerText = 'Login'
      const loginInput = document.createElement('input')
      loginInput.type = 'password'
      loginInput.style.width = '400px'
      loginInput.style.textAlign = 'center'
      if (getVal('clientId') && getVal('clientId')[0] !== 0) {
        loginInput.value = getVal('clientId') || ''
        loginInput.type = 'text'
      }
      loginDiv.appendChild(loginInput)
      loginDiv.appendChild(loginButton)

      SetStyle(loginButton, buttonStyle)

      loginButton.addEventListener('click', function () {
        if (loginInput.value === getVal('clientId').toString()) {
          openInTab(serverAdress + 'getVeteranPw?cid=' + getVal('clientId'), {
            active: true
          })
        } else {
          Auth(loginInput.value)
        }
      })

      ibuttonCell.appendChild(loginDiv)

      // irc button ----------------------------------------------------------------------------------------------------------------
      let ircButton = CreateNodeWithText(ibuttonCell, texts.ircButton, 'button')
      SetStyle(ircButton, buttonStyle)
      ircButton.style.display = 'none'
      ircButton.setAttribute('id', 'ircButton')

      ircButton.addEventListener('click', function () {
        openInTab(ircAddress, {
          active: true
        })
      })

      // retry button ----------------------------------------------------------------------------------------------------------------
      let retryButton = CreateNodeWithText(ibuttonCell, texts.retry, 'button')
      SetStyle(retryButton, buttonStyle)
      retryButton.style.display = 'none'
      retryButton.setAttribute('id', 'retryButton')

      retryButton.addEventListener('click', function () {
        menuButtonDiv.style.background = '#262626'
        infoDiv.innerText = texts.loading
        retryButton.style.display = 'none'
        ircButton.style.display = 'none'
        ConnectToServer(AfterLoad)
      })

      // window resize event listener ---------------------------------------
      addEventListener(window, 'resize', function () {
        menuButtonDiv.style.top = (window.innerHeight - 70) + 'px'
      })

      // passive button ----------------------------------------------------------------------------------------------------------------
      let passiveButton = CreateNodeWithText(buttonCell, texts.passiveMode, 'button')
      passiveButton.title = texts.passiveTooltip
      SetStyle(passiveButton, buttonStyle)

      // APPEND EVERYTHING
      appedtTo.appendChild(menuButtonDiv)

      setPassiveButtonState(getVal('skipLoad'))

      passiveButton.addEventListener('click', function () {
        ClearAllMessages()
        let sl = !getVal('skipLoad')
        setVal('skipLoad', sl)
        setPassiveButtonState(sl, true)

        if (sl) {
          ShowMessage({
            m: texts.passiveModeActivated,
            isSimple: true
          }, 6)
        } else {
          ConnectToServer(AfterLoad)
        }
      })
    } catch (e) {
      Exception(e, 'script error at showing menu:')
    }
  }

  function setPassiveButtonState (isPassive) {
    SafeGetElementById('menuButtonDiv', (elem) => {
      elem.style.backgroundColor = '#262626'
    })
    SafeGetElementById('ircButton', (elem) => {
      elem.style.display = 'none'
    })
    SafeGetElementById('retryButton', (elem) => {
      elem.style.display = 'none'
    })
    SafeGetElementById('loginDiv', (elem) => {
      elem.style.display = 'none'
    })
    if (!isPassive) {
      SafeGetElementById('infoMainDiv', (elem) => {
        elem.innerText = texts.loading
      })
    } else {
      SafeGetElementById('infoMainDiv', (elem) => {
        elem.innerText = texts.passiveModeMenuBoxText
      })
    }
  }

  // : }}}

  // : Generic utils {{{
  function GetId () {
    let currId = getVal('clientId')
    if (currId) {
      return currId
    } else {
      currId = new Date()
      currId = currId.getTime() + Math.floor(Math.random() * 1000000000000)
      currId = currId.toString().split('')
      currId.shift()
      currId = '0' + currId.join('')
      setVal('clientId', currId)
      return currId
    }
  }

  function SafeGetElementById (id, next) {
    let element = document.getElementById(id)
    if (element) {
      next(element)
    } else {
      Log(`Unable to safe get element by id: ${id}`)
    }
  }

  function SetStyle (target, style) {
    Object.keys(style).sort().forEach((key) => {
      target.style[key] = style[key]
    })
  }

  function CreateNodeWithText (to, text, type) {
    var paragraphElement = document.createElement(type || 'p') // new paragraph
    var textNode = document.createTextNode(text)
    paragraphElement.appendChild(textNode)
    to.appendChild(paragraphElement)
    return paragraphElement
  }

  function GetXHRInfos () {
    const now = new Date().getTime()
    const lastCheck = getVal('lastInfoCheckTime')
    if (!lastCheck) {
      setVal('lastInfoCheckTime', now)
    }

    const lastInfo = JSON.parse(getVal('lastInfo'))
    if (lastInfo.result !== 'success' || now > lastCheck + (infoExpireTime * 1000)) {
      return new Promise((resolve, reject) => {
        const url = apiAdress +
            'infos?version=true&motd=true&subjinfo=true&cversion=' +
            info().script.version +
            '&cid=' + GetId()

        xmlhttpRequest({
          method: 'GET',
          url: url,
          crossDomain: true,
          xhrFields: { withCredentials: true },
          headers: {
            'Content-Type': 'application/json'
          },
          onload: function (response) {
            try {
              setVal('lastInfoCheckTime', now)
              const res = JSON.parse(response.responseText)
              setVal('lastInfo', response.responseText)
              resolve(res)
            } catch (e) {
              Log('Errro paring JSON in GetXHRInfos')
              Log(e)
              reject(e)
            }
          },
          onerror: (e) => {
            Log('Info get Error', e)
            reject(e)
          }
        })
      })
    } else {
      return new Promise((resolve, reject) => {
        try {
          resolve(lastInfo)
        } catch (e) {
          Log('Errro paring JSON in GetXHRInfos, when using old data!')
          Log(e)
          reject(e)
        }
      })
    }
  }

  function GetXHRQuestionAnswer (question) {
    return new Promise((resolve, reject) => {
      let url = apiAdress + 'ask?'
      let params = []
      Object.keys(question).forEach((key) => {
        let val = question[key]
        if (typeof val !== 'string') {
          val = JSON.stringify(val)
        }
        params.push(key + '=' + encodeURIComponent(val))
      })
      url += params.join('&') +
        '&cversion=' + info().script.version +
        '&cid=' + GetId()

      xmlhttpRequest({
        method: 'GET',
        url: url,
        onload: function (response) {
          try {
            let res = JSON.parse(response.responseText)
            // FIXME: check if res is a valid answer array
            // res.json({
            //   result: r,
            //   success: true
            // })
            // ERROR:
            // res.json({
            //   message: `Invalid question :(`,
            //   result: [],
            //   recievedData: JSON.stringify(req.query),
            //   success: false
            // })
            resolve(res.result)
          } catch (e) {
            reject(e)
          }
        },
        onerror: (e) => {
          Log('Errro paring JSON in GetXHRQuestionAnswer')
          Log(e)
          reject(e)
          reject(e)
        }
      })
    })
  }

  function SendXHRMessage (path, message) {
    // message = SUtils.RemoveSpecialChars(message) // TODO: check this
    if (typeof message === 'object') {
      message = JSON.stringify(message)
    }
    const url = apiAdress + path
    return new Promise((resolve, reject) => {
      xmlhttpRequest({
        method: 'POST',
        url: url,
        crossDomain: true,
        xhrFields: { withCredentials: true },
        data: message,
        headers: {
          'Content-Type': 'application/json'
        },
        onerror: function (e) {
          Log('Data send error', e)
          reject(e)
        },
        onload: (resp) => {
          try {
            const res = JSON.parse(resp.responseText)
            resolve(res)
          } catch (e) {
            Log('Error paring JSON in SendXHRMessage')
            Log(e)
            reject(e)
          }
        }
      })
    })
  }

  function OpenErrorPage (e) {
    let path = 'lred'
    try {
      if (e.message || e.stack) {
        path += '?'
      }
      if (e.message) {
        path += 'msg:' + SUtils.SimplifyQuery(e.message)
      }
      if (e.stack) {
        path += '___stack:' + SUtils.SimplifyStack(e.stack)
      }
      path += '___version:' + info().script.version
      path = SUtils.RemoveSpecialChars(path)
    } catch (e) {
      Exception(e, 'error at setting error stack/msg link')
    }
    path = path.replace(/ /g, '_')
    openInTab(serverAdress + path, {
      active: true
    })
  }

  // : }}}

  // : Help {{{

  // shows some neat help
  function ShowHelp () {
    openInTab(serverAdress + 'manual?scriptMenu', {
      active: true
    })
  }

  // : }}}

  // I am not too proud to cry that He and he
  // Will never never go out of my mind.
  // All his bones crying, and poor in all but pain,

  // Being innocent, he dreaded that he died
  // Hating his God, but what he was was plain:
  // An old kind man brave in his burning pride.

  // The sticks of the house were his; his books he owned.
  // Even as a baby he had never cried;
  // Nor did he now, save to his secret wound.

  // Out of his eyes I saw the last light glide.
  // Here among the liught of the lording sky
  // An old man is with me where I go

  // Walking in the meadows of his son's eye
  // Too proud to cry, too frail to check the tears,
  // And caught between two nights, blindness and death.

  // O deepest wound of all that he should die
  // On that darkest day.
})(); // eslint-disable-line