Drillster Bot

// ==UserScript==
// @name         DrillsterBot
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.drillster.com/not-found
// @grant        none
// ==/UserScript==

var THREAD_COUNT = 5;
var STICK_100 = 5;

var drill = "oe5qeapvIuWnXIk8HzqtVA";




var answers = new Map();

var drillArray = Array();


var keepgoing = 5;
var threads = 1;


function getDrillList(){


    function compileDrillList(){

        var a = document.getElementsByClassName("cobracheck");
        for (var item of a){
            if (item.checked) {drillArray.push(item.name);}
        }

        let cobra = document.getElementsByClassName("cobra")[0];
        cobra.innerHTML = "";

        nextDrill(drillArray);
    }

    function updateDrillList(data){

        document.body.innerHTML = "<div class='cobra'></div>" + document.body.innerHTML;

        let cobra = document.getElementsByClassName("cobra")[0];

        templist = Array();

        data.drills.forEach(v => {
            templist.push(v);
        });

        function sortID(a, b){
            var nameA=a.name.toLowerCase(), nameB=b.name.toLowerCase();
            if (nameA < nameB) //sort string ascending
                return -1;
            if (nameA > nameB)
                return 1;
            return 0; //default return value (no sorting)
        }

        templist.sort(sortID);

        templist.forEach(v => {
            var checkbox="<label for="+v.name+">"+v.name+"</label><input type='checkbox' class=cobracheck value="+v.name+" name="+v.id+"><br>";
            cobra.innerHTML+=checkbox;
        });

        var button = "<button class='confirmbot'>BOT</button>";
        cobra.innerHTML+=button;

        button = cobra.getElementsByClassName("confirmbot")[0];
        button.addEventListener("click",compileDrillList);

    }

    $.get("https://www.drillster.com/api/2/repertoire",updateDrillList);
}


var score = 0;
var drillsLeft = 0;
var lastwrong = "";

function updateInfo(){

    document.getElementsByClassName("cobra")[0].innerHTML = "<label>Drills Left: "+drillsLeft+"</label><br><label> Current: "+drill + "</label><br><label> Score: "+score + "</label><br><label> Last Wrong: "+lastwrong+ "</label>";

}


function nextDrill() {

    drill = drillArray.pop();

    drillsLeft = drillArray.length;
    lastwrong = "";
    threads = THREAD_COUNT;
    keepgoing = STICK_100;

    updateInfo();

    if (drill == null) {
        return;
    } else {

        for (let i = 0; i < threads; i++){
            getQuestion();
        }
    }
}


function getQuestion(){

    $.get("https://www.drillster.com/api/2/question/" + drill,questionInterpret);
}




function checkAnswer(data,quest,guess){

    var evals = data.evaluation.termEvaluations;
    var realans = evals[evals.length-1].value;
    var perc = data.proficiency.overall;
    if (realans != guess){
        console.log("Wrong");
        console.log(quest + " = " + realans + " not " + guess);
        lastwrong = quest + ": " + realans;
        answers.set(quest,realans);
    }
    score = perc;
    updateInfo();
    if (perc == 100){
        keepgoing-=1;
        if (keepgoing <= 0){
            threads -= 1;
            if (threads == 0){
                nextDrill();
            }
            return;
        }
    }
    getQuestion();

}


function questionInterpret(obj){
    var quest = obj.question.ask.term.value;
    var header = obj.question.reference;

    if (answers.has(quest)){
        putAnswer(header,answers.get(quest),(data) => checkAnswer(data,quest,answers.get(quest)));
    }  else {
         putAnswer(header,"no clue",(data) => checkAnswer(data,quest,"no clue"));
    }

}

function putAnswer(ref,ans,callback){

    var ansobj = Object();
    ansobj.answer = ans;

    $.ajax({

                url: 'https://www.drillster.com/api/2/answer/'+ref,

                type: 'PUT',

                dataType: 'json',

                data: ansobj,

                success: function (data, textStatus, xhr) {
                    callback(data);
                },

                error: function (xhr, textStatus, errorThrown) {
                    console.log('Error in Operation');
                }
            });
}




(function() {
    'use strict';

    getDrillList();
    // Your code here...
})();