Code Duolingo [ Fixed ]

1. // ==UserScript==
   // @name         Duolingo-Cheat-Tool
   // @namespace    http://tampermonkey.net/
   // @version      0.1
   // @description  Auto answer Duolingo script!
   // @author       Tran Quy <tranphuquy19@gmail.com>
   // @match        https://www.duolingo.com/skill*
   // @icon         https://www.google.com/s2/favicons?domain=duolingo.com
   // @grant        none
   // ==/UserScript==
    
   const DEBUG = true;
   let mainInterval;
    
   const dataTestComponentClassName = 'e4VJZ';
    
   const TIME_OUT = 1000;
    
   // Challenge types
   const CHARACTER_SELECT_TYPE = 'characterSelect';
   const CHARACTER_MATCH_TYPE = 'characterMatch'; // not yet
   const TRANSLATE_TYPE = 'translate';
   const LISTEN_TAP_TYPE = 'listenTap';
   const NAME_TYPE = 'name';
   const COMPLETE_REVERSE_TRANSLATION_TYPE = 'completeReverseTranslation';
   const LISTEN_TYPE = 'listen';
   const SELECT_TYPE = 'select';
   const JUDGE_TYPE = 'judge';
   const FORM_TYPE = 'form';
   const LISTEN_COMPREHENSION_TYPE = 'listenComprehension';
   const READ_COMPREHENSION_TYPE = 'readComprehension';
   const CHARACTER_INTRO_TYPE = 'characterIntro';
   const DIALOGUE_TYPE = 'dialogue';
   const SELECT_TRANSCRIPTION_TYPE = 'selectTranscription';
   const SPEAK_TYPE = 'speak';
   const SELECT_PRONUNCIATION_TYPE = 'selectPronunciation';
    
   // Query DOM keys
   const CHALLENGE_CHOICE_CARD = '[data-test="challenge-choice-card"]';
   const CHALLENGE_CHOICE = '[data-test="challenge-choice"]';
   const CHALLENGE_TRANSLATE_INPUT = '[data-test="challenge-translate-input"]';
   const CHALLENGE_LISTEN_TAP = '[data-test="challenge-listenTap"]';
   const CHALLENGE_JUDGE_TEXT = '[data-test="challenge-judge-text"]';
   const CHALLENGE_TEXT_INPUT = '[data-test="challenge-text-input"]';
   const CHALLENGE_TAP_TOKEN = '[data-test="challenge-tap-token"]';
   const PLAYER_NEXT = '[data-test="player-next"]';
   const PLAYER_SKIP = '[data-test="player-skip"]';
   const BLAME_INCORRECT = '[data-test="blame blame-incorrect"]';
   const CHARACTER_MATCH = '[data-test="challenge challenge-characterMatch"]';
    
   const clickEvent = new MouseEvent('click', {
       view: window,
       bubbles: true,
       cancelable: true
   });
    
   function getChallengeObj(theObject) {
       let result = null;
       if (theObject instanceof Array) {
           for (let i = 0; i < theObject.length; i++) {
               result = getChallengeObj(theObject[i]);
               if (result) {
                   break;
               }
           }
       }
       else {
           for (let prop in theObject) {
               if (prop == 'challenge') {
                   if (typeof theObject[prop] == 'object') {
                       return theObject;
                   }
               }
               if (theObject[prop] instanceof Object || theObject[prop] instanceof Array) {
                   result = getChallengeObj(theObject[prop]);
                   if (result) {
                       break;
                   }
               }
           }
       }
       return result;
   }
    
   function getChallenge() {
       // const dataTestComponentClassName = 'e4VJZ';
       const dataTestDOM = document.getElementsByClassName(dataTestComponentClassName)[0];
    
       if (!dataTestDOM) {
           document.querySelectorAll(PLAYER_NEXT)[0].dispatchEvent(clickEvent);
           return null;
       } else {
           const dataTestAtrr = Object.keys(dataTestDOM).filter(att => /^__reactProps/g.test(att))[0];
           const childDataTestProps = dataTestDOM[dataTestAtrr];
           const { challenge } = getChallengeObj(childDataTestProps);
           return challenge;
       }
   }
    
   function pressEnter() {
       document.dispatchEvent(new KeyboardEvent('keydown', { 'keyCode': 13, 'which': 13 }));
   }
    
   function dynamicInput(element, msg) {
       let input = element;
       let lastValue = input.value;
       input.value = msg;
       let event = new Event('input', { bubbles: true });
       // hack React15
       event.simulated = true;
       // hack React16 内部定义了descriptor拦截value，此处重置状态
       let tracker = input._valueTracker;
       if (tracker) {
           tracker.setValue(lastValue);
       }
       input.dispatchEvent(event);
   }
    
   function classify() {
       const challenge = getChallenge();
       if (!challenge) return;
       if (DEBUG) console.log(`${challenge.type}`, challenge);
       switch (challenge.type) {
           case SELECT_PRONUNCIATION_TYPE:
           case READ_COMPREHENSION_TYPE:
           case LISTEN_COMPREHENSION_TYPE:
           case FORM_TYPE: { // trắc nghiệm 1 đáp án
               const { choices, correctIndex } = challenge;
               if (DEBUG) console.log('READ_COMPREHENSION LISTEN_COMPREHENSION FORM', { choices, correctIndex });
               document.querySelectorAll(CHALLENGE_CHOICE)[correctIndex].dispatchEvent(clickEvent);
               return { choices, correctIndex };
           }
    
           case SELECT_TYPE:
           case CHARACTER_SELECT_TYPE: { // trắc nghiệm 1 đáp án
               const { choices, correctIndex } = challenge;
               if (DEBUG) console.log('SELECT CHARACTER_SELECT', { choices, correctIndex });
               document.querySelectorAll(CHALLENGE_CHOICE_CARD)[correctIndex].dispatchEvent(clickEvent);
               return { choices, correctIndex };
           }
    
           case CHARACTER_MATCH_TYPE: { // tập hợp các cặp thẻ
               const { pairs } = challenge;
               const tokens = document.querySelectorAll(CHALLENGE_TAP_TOKEN);
               pairs.forEach((pair) => {
                   for(let i = 0; i < tokens.length; i++) {
                       if(tokens[i].innerText === pair.transliteration || tokens[i].innerText === pair.character) {
                           tokens[i].dispatchEvent(clickEvent);
                       }
                   }
               })
               return { pairs };
           }
    
           case TRANSLATE_TYPE: {
               const { correctTokens, correctSolutions } = challenge;
               if (DEBUG) console.log('TRANSLATE', { correctTokens });
               if (correctTokens) {
                   const tokens = document.querySelectorAll(CHALLENGE_TAP_TOKEN);
                   let ignoreTokeIndexes = [];
                   for (let correctTokenIndex in correctTokens) {
                       for (let tokenIndex in tokens) {
                           const token = tokens[tokenIndex];
                           if (ignoreTokeIndexes.includes(tokenIndex)) continue;
                           if (token.innerText === correctTokens[correctTokenIndex]) {
                               token.dispatchEvent(clickEvent);
                               ignoreTokeIndexes.push(tokenIndex);
                               if(DEBUG) console.log(`correctTokenIndex [${correctTokens[correctTokenIndex]}] - tokenIndex [${token.innerText}]`);
                               break;
                           };
                       }
                   }
               } else if (correctSolutions) {
                   let textInputElement = document.querySelectorAll(CHALLENGE_TRANSLATE_INPUT)[0];
                   dynamicInput(textInputElement, correctSolutions[0]);
               }
    
               return { correctTokens };
           }
    
           case NAME_TYPE: { // nhập đán án
               const { correctSolutions } = challenge;
               if (DEBUG) console.log('NAME', { correctSolutions });
               let textInputElement = document.querySelectorAll(CHALLENGE_TEXT_INPUT)[0];
               let correctSolution = correctSolutions[0];
               dynamicInput(textInputElement, correctSolution);
               return { correctSolutions };
           }
    
           case COMPLETE_REVERSE_TRANSLATION_TYPE: { // điền vào từ còn thiếu
               const { displayTokens } = challenge;
               if (DEBUG) console.log('COMPLETE_REVERSE_TRANLATION', { displayTokens });
               const { text } = displayTokens.filter(token => token.isBlank)[0];
               let textInputElement = document.querySelectorAll(CHALLENGE_TEXT_INPUT)[0];
               dynamicInput(textInputElement, text);
               return { displayTokens };
           }
    
           case LISTEN_TAP_TYPE: {
               const { correctTokens } = challenge;
               if (DEBUG) console.log('LISTEN_TAP', { correctTokens });
               const tokens = document.querySelectorAll(CHALLENGE_TAP_TOKEN);
               for (let wordIndex in correctTokens) {
                   tokens.forEach((token) => {
                       if (token.innerText === correctTokens[wordIndex]) {
                           token.dispatchEvent(clickEvent);
                       };
                   });
               }
               return { correctTokens };
           }
    
           case LISTEN_TYPE: { // nghe và điền vào ô input
               const { prompt } = challenge;
               if (DEBUG) console.log('LISTEN', { prompt });
               let textInputElement = document.querySelectorAll(CHALLENGE_TRANSLATE_INPUT)[0];
               dynamicInput(textInputElement, prompt);
               return { prompt };
           }
    
           case JUDGE_TYPE: { // trắc nghiệm 1 đáp án
               const { correctIndices } = challenge;
               if (DEBUG) console.log('JUDGE', { correctIndices });
               document.querySelectorAll(CHALLENGE_JUDGE_TEXT)[correctIndices[0]].dispatchEvent(clickEvent);
               return { correctIndices };
           }
    
           case DIALOGUE_TYPE:
           case CHARACTER_INTRO_TYPE: { // trắc nghiệm 1 đáp án
               const { choices, correctIndex } = challenge;
               if (DEBUG) console.log('DIALOGUE CHARACTER_INTRO', { choices, correctIndex });
               document.querySelectorAll(CHALLENGE_JUDGE_TEXT)[correctIndex].dispatchEvent(clickEvent);
               return { choices, correctIndex };
           }
    
           case SELECT_TRANSCRIPTION_TYPE: {
               const { choices, correctIndex } = challenge;
               if (DEBUG) console.log('DIALOGUE CHARACTER_INTRO', { choices, correctIndex });
               document.querySelectorAll(CHALLENGE_JUDGE_TEXT)[correctIndex].dispatchEvent(clickEvent);
               return { choices, correctIndex };
           }
    
           case SPEAK_TYPE: {
               const { prompt } = challenge;
               if (DEBUG) console.log('SPEAK', { prompt });
               document.querySelectorAll(PLAYER_SKIP)[0].dispatchEvent(clickEvent);
               return { prompt };
           }
    
           default:
               break;
       }
   }
    
   function breakWhenIncorrect() {
       const isBreak = document.querySelectorAll(BLAME_INCORRECT).length > 0;
       if (isBreak) {
           console.log('Incorrect, stopped');
           clearInterval(mainInterval);
       };
   }
    
   function main() {
       try {
           let isPlayerNext = document.querySelectorAll(PLAYER_NEXT)[0].textContent.toUpperCase();
           if (isPlayerNext.valueOf() !== 'CONTINUE') {
               classify();
               breakWhenIncorrect()
               pressEnter();
           }
           setTimeout(pressEnter, 150);
       } catch (e) {
           console.log(e);
       }
   }
    
   function solveChallenge() {
       mainInterval = setInterval(main, TIME_OUT);
       console.log(`to stop run this command clearInterval(${mainInterval})`);
   }
    
   // solveChallenge();
   (solveChallenge)();
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