[FEATURE] Zoomer sur les images en cliquant dessus

Fixes #306

client/src/App.tsx

@@ -13,6 +13,7 @@ import ResetPassword from './pages/AuthManager/providers/SimpleLogin/ResetPasswo
 import ManageRoom from './pages/Teacher/ManageRoom/ManageRoom';
 import QuizForm from './pages/Teacher/EditorQuiz/EditorQuiz';
 
+
 // Pages espace étudiant
 import JoinRoom from './pages/Student/JoinRoom/JoinRoom';
 
@@ -25,6 +26,7 @@ import Footer from './components/Footer/Footer';
 
 import ApiService from './services/ApiService';
 import OAuthCallback from './pages/AuthManager/callback/AuthCallback';
+import { QuizProvider } from './pages/Student/JoinRoom/QuizProvider';
 
 const App: React.FC = () => {
     const [isAuthenticated, setIsAuthenticated] = useState(ApiService.isLoggedIn());
@@ -78,13 +80,13 @@ const App: React.FC = () => {
                         />
                         <Route
                             path="/teacher/manage-room/:quizId/:roomName"
-                            element={isTeacherAuthenticated ? <ManageRoom /> : <Navigate to="/login" />}
+                            element={isTeacherAuthenticated ? <QuizProvider><ManageRoom /></QuizProvider> : <Navigate to="/login" />}
                         />
 
                         {/* Pages espace étudiant */}
                         <Route
                             path="/student/join-room"
-                            element={( !isRoomRequireAuthentication || isAuthenticated ) ? <JoinRoom /> : <Navigate to="/login" />}
+                            element={( !isRoomRequireAuthentication || isAuthenticated ) ? <QuizProvider><JoinRoom /></QuizProvider> : <Navigate to="/login" />}
                         />
 
                         {/* Pages authentification */}

client/src/components/QuestionsDisplay/MultipleChoiceQuestionDisplay/MultipleChoiceQuestionDisplay.tsx

@@ -5,55 +5,52 @@ import { Button } from '@mui/material';
 import { FormattedTextTemplate } from '../../GiftTemplate/templates/TextTypeTemplate';
 import { MultipleChoiceQuestion } from 'gift-pegjs';
 import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
+import { QuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
-interface Props {
-    question: MultipleChoiceQuestion;
-    handleOnSubmitAnswer?: (answer: AnswerType) => void;
-    showAnswer?: boolean;
-    passedAnswer?: AnswerType;
-}
+const MultipleChoiceQuestionDisplay: React.FC = () => {
+    const { questions, index, answer, submitAnswer } = useQuizContext();
+    console.log('MultipleChoiceQuestionDisplay: passedAnswer', JSON.stringify(answer));
 
-const MultipleChoiceQuestionDisplay: React.FC<Props> = (props) => {
-    const { question, showAnswer, handleOnSubmitAnswer, passedAnswer } = props;
-    console.log('MultipleChoiceQuestionDisplay: passedAnswer', JSON.stringify(passedAnswer));
+    const question = questions[Number(index)].question as MultipleChoiceQuestion;
 
-    const [answer, setAnswer] = useState<AnswerType>(() => {
-        if (passedAnswer && passedAnswer.length > 0) {
-            return passedAnswer;
+    const [actualAnswer, setActualAnswer] = useState<AnswerType>(() => {
+        if (answer && answer.length > 0) {
+            return answer;
         }
         return [];
     });
 
     let disableButton = false;
-    if (handleOnSubmitAnswer === undefined) {
+    if (submitAnswer === undefined) {
         disableButton = true;
     }
 
     useEffect(() => {
-        console.log('MultipleChoiceQuestionDisplay: passedAnswer', JSON.stringify(passedAnswer));
-        if (passedAnswer !== undefined) {
-            setAnswer(passedAnswer);
+        console.log('MultipleChoiceQuestionDisplay: passedAnswer', JSON.stringify(answer));
+        if (answer !== undefined) {
+            setActualAnswer(answer);
         } else {
-            setAnswer([]);
+            setActualAnswer([]);
         }
-    }, [passedAnswer, question.id]);
+    }, [answer, index]);
 
     const handleOnClickAnswer = (choice: string) => {
-        setAnswer((prevAnswer) => {
-            console.log(`handleOnClickAnswer -- setAnswer(): prevAnswer: ${prevAnswer}, choice: ${choice}`);
+        setActualAnswer((answer) => {
+            console.log(`handleOnClickAnswer -- setAnswer(): prevAnswer: ${answer}, choice: ${choice}`);
             const correctAnswersCount = question.choices.filter((c) => c.isCorrect).length;
 
             if (correctAnswersCount === 1) {
                 // If only one correct answer, replace the current selection
-                return prevAnswer.includes(choice) ? [] : [choice];
+                return answer.includes(choice) ? [] : [choice];
             } else {
                 // Allow multiple selections if there are multiple correct answers
-                if (prevAnswer.includes(choice)) {
+                if (answer.includes(choice)) {
                     // Remove the choice if it's already selected
-                    return prevAnswer.filter((selected) => selected !== choice);
+                    return answer.filter((selected) => selected !== choice);
                 } else {
                     // Add the choice if it's not already selected
-                    return [...prevAnswer, choice];
+                    return [...answer, choice];
                 }
             }
         });
@@ -63,14 +60,16 @@ const MultipleChoiceQuestionDisplay: React.FC<Props> = (props) => {
     const alphabet = alpha.map((x) => String.fromCharCode(x));
 
     return (
+        <QuizContext.Consumer>
+            {({ showAnswer }) => (
                 <div className="question-container">
                     <div className="question content">
                         <div dangerouslySetInnerHTML={{ __html: FormattedTextTemplate(question.formattedStem) }} />
                     </div>
                     <div className="choices-wrapper mb-1">
                         {question.choices.map((choice, i) => {
-                    console.log(`answer: ${answer}, choice: ${choice.formattedText.text}`);
-                    const selected = answer.includes(choice.formattedText.text) ? 'selected' : '';
+                            console.log(`answer: ${actualAnswer}, choice: ${choice.formattedText.text}`);
+                            const selected = actualAnswer.includes(choice.formattedText.text) ? 'selected' : '';
                             return (
                                 <div key={choice.formattedText.text + i} className="choice-container">
                                     <Button
@@ -115,11 +114,11 @@ const MultipleChoiceQuestionDisplay: React.FC<Props> = (props) => {
                             />
                         </div>
                     )}
-            {!showAnswer && handleOnSubmitAnswer && (
+                    {!showAnswer && submitAnswer && (
                         <Button
                             variant="contained"
                             onClick={() =>
-                        answer.length > 0 && handleOnSubmitAnswer && handleOnSubmitAnswer(answer)
+                                actualAnswer.length > 0 && submitAnswer && submitAnswer(actualAnswer)
                             }
                             disabled={answer.length === 0}
                         >
@@ -127,6 +126,8 @@ const MultipleChoiceQuestionDisplay: React.FC<Props> = (props) => {
                         </Button>
                     )}
                 </div>
+            )}
+        </QuizContext.Consumer>
     );
 };
 

client/src/components/QuestionsDisplay/NumericalQuestionDisplay/NumericalQuestionDisplay.tsx

@@ -6,26 +6,23 @@ import { FormattedTextTemplate } from '../../GiftTemplate/templates/TextTypeTemp
 import { NumericalQuestion, SimpleNumericalAnswer, RangeNumericalAnswer, HighLowNumericalAnswer } from 'gift-pegjs';
 import { isSimpleNumericalAnswer, isRangeNumericalAnswer, isHighLowNumericalAnswer, isMultipleNumericalAnswer } from 'gift-pegjs/typeGuards';
 import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
+import { QuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
-interface Props {
-    question: NumericalQuestion;
-    handleOnSubmitAnswer?: (answer: AnswerType) => void;
-    showAnswer?: boolean;
-    passedAnswer?: AnswerType;
-}
+const NumericalQuestionDisplay: React.FC = () => {
+    const { questions, index, answer, submitAnswer } = useQuizContext();
 
-const NumericalQuestionDisplay: React.FC<Props> = (props) => {
-    const { question, showAnswer, handleOnSubmitAnswer, passedAnswer } =
-        props;
-    const [answer, setAnswer] = useState<AnswerType>(passedAnswer || []);
+    const question = questions[Number(index)].question as NumericalQuestion;
+
+    const [actualAnswer, setActualAnswer] = useState<AnswerType>(answer || []);
     const correctAnswers = question.choices;
     let correctAnswer = '';
 
     useEffect(() => {
-    if (passedAnswer !== null && passedAnswer !== undefined) {
-        setAnswer(passedAnswer);
+        if (answer !== null && answer !== undefined) {
+            setActualAnswer(answer);
         }
-    }, [passedAnswer]);
+    }, [answer]);
 
     //const isSingleAnswer = correctAnswers.length === 1;
 
@@ -44,6 +41,8 @@ const NumericalQuestionDisplay: React.FC<Props> = (props) => {
     }
 
     return (
+        <QuizContext.Consumer>
+            {({ showAnswer }) => (
                 <div className="question-wrapper">
                     <div>
                         <div dangerouslySetInnerHTML={{ __html: FormattedTextTemplate(question.formattedStem) }} />
@@ -54,7 +53,7 @@ const NumericalQuestionDisplay: React.FC<Props> = (props) => {
                                 <strong>La bonne réponse est: </strong>
                                 {correctAnswer}</div>
                             <span>
-                        <strong>Votre réponse est: </strong>{answer.toString()}
+                                <strong>Votre réponse est: </strong>{actualAnswer.toString()}
                             </span>
                             {question.formattedGlobalFeedback && <div className="global-feedback mb-2">
                                 <div dangerouslySetInnerHTML={{ __html: FormattedTextTemplate(question.formattedGlobalFeedback) }} />
@@ -69,7 +68,7 @@ const NumericalQuestionDisplay: React.FC<Props> = (props) => {
                                     id={question.formattedStem.text}
                                     name={question.formattedStem.text}
                                     onChange={(e: React.ChangeEvent<HTMLInputElement>) => {
-                                setAnswer([e.target.valueAsNumber]);
+                                        setActualAnswer([e.target.valueAsNumber]);
                                     }}
                                     inputProps={{ 'data-testid': 'number-input' }}
                                 />
@@ -79,22 +78,25 @@ const NumericalQuestionDisplay: React.FC<Props> = (props) => {
                                     <div dangerouslySetInnerHTML={{ __html: FormattedTextTemplate(question.formattedGlobalFeedback) }} />
                                 </div>
                             )}
-                    {handleOnSubmitAnswer && (
+                            {submitAnswer && (
                                 <Button
                                     variant="contained"
                                     onClick={() =>
-                                answer !== undefined &&
-                                handleOnSubmitAnswer &&
-                                handleOnSubmitAnswer(answer)
+                                        actualAnswer !== undefined &&
+                                        submitAnswer &&
+                                        submitAnswer(actualAnswer)
                                     }
-                            disabled={answer === undefined || answer === null || isNaN(answer[0] as number)}
+                                    disabled={actualAnswer === undefined || actualAnswer === null || isNaN(actualAnswer[0] as number)}
                                 >
                                     Répondre
                                 </Button>
                             )}
                         </>
                     )}
+
                 </div>
+            )}
+        </QuizContext.Consumer>
     );
 };
 

client/src/components/QuestionsDisplay/QuestionDisplay.tsx

@@ -1,40 +1,20 @@
 import React from 'react';
 import { Question } from 'gift-pegjs';
-
 import TrueFalseQuestionDisplay from './TrueFalseQuestionDisplay/TrueFalseQuestionDisplay';
 import MultipleChoiceQuestionDisplay from './MultipleChoiceQuestionDisplay/MultipleChoiceQuestionDisplay';
 import NumericalQuestionDisplay from './NumericalQuestionDisplay/NumericalQuestionDisplay';
 import ShortAnswerQuestionDisplay from './ShortAnswerQuestionDisplay/ShortAnswerQuestionDisplay';
-import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
-// import useCheckMobileScreen from '../../services/useCheckMobileScreen';
-
-interface QuestionProps {
-    question: Question;
-    handleOnSubmitAnswer?: (answer: AnswerType) => void;
-    showAnswer?: boolean;
-    answer?: AnswerType;
-
-}
-const QuestionDisplay: React.FC<QuestionProps> = ({
-    question,
-    handleOnSubmitAnswer,
-    showAnswer,
-    answer,
-}) => {
-    // const isMobile = useCheckMobileScreen();
-    // const imgWidth = useMemo(() => {
-    //     return isMobile ? '100%' : '20%';
-    // }, [isMobile]);
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
+const QuestionDisplay: React.FC = () => {
+    const { questions, index } = useQuizContext();
+    const question = questions[Number(index)].question as Question;
     let questionTypeComponent = null;
+
     switch (question?.type) {
         case 'TF':
             questionTypeComponent = (
                 <TrueFalseQuestionDisplay
-                    question={question}
-                    handleOnSubmitAnswer={handleOnSubmitAnswer}
-                    // showAnswer={showAnswer}
-                    passedAnswer={answer}
                 />
             );
             break;
@@ -42,10 +22,6 @@ const QuestionDisplay: React.FC<QuestionProps> = ({
 
             questionTypeComponent = (
                 <MultipleChoiceQuestionDisplay
-                    question={question}
-                    handleOnSubmitAnswer={handleOnSubmitAnswer}
-                    showAnswer={showAnswer}
-                    passedAnswer={answer}
                 />
             );
             break;
@@ -53,11 +29,6 @@ const QuestionDisplay: React.FC<QuestionProps> = ({
             if (question.choices) {
                 questionTypeComponent = (
                     <NumericalQuestionDisplay
-                            question={question}
-                            handleOnSubmitAnswer={handleOnSubmitAnswer}
-                            showAnswer={showAnswer}
-                            passedAnswer={answer}
-                            
                     />
                 );
             }
@@ -65,10 +36,6 @@ const QuestionDisplay: React.FC<QuestionProps> = ({
         case 'Short':
             questionTypeComponent = (
                 <ShortAnswerQuestionDisplay
-                    question={question}
-                    handleOnSubmitAnswer={handleOnSubmitAnswer}
-                    showAnswer={showAnswer}
-                    passedAnswer={answer}
                 />
             );
             break;

client/src/components/QuestionsDisplay/ShortAnswerQuestionDisplay/ShortAnswerQuestionDisplay.tsx

@@ -4,28 +4,26 @@ import { Button, TextField } from '@mui/material';
 import { FormattedTextTemplate } from '../../GiftTemplate/templates/TextTypeTemplate';
 import { ShortAnswerQuestion } from 'gift-pegjs';
 import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
+import { QuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
-interface Props {
-    question: ShortAnswerQuestion;
-    handleOnSubmitAnswer?: (answer: AnswerType) => void;
-    showAnswer?: boolean;
-    passedAnswer?: AnswerType;
 
-}
+const ShortAnswerQuestionDisplay: React.FC = () => {
 
-const ShortAnswerQuestionDisplay: React.FC<Props> = (props) => {
-
-    const { question, showAnswer, handleOnSubmitAnswer, passedAnswer } = props;
-    const [answer, setAnswer] = useState<AnswerType>(passedAnswer || []);
+    const { questions, index, answer, submitAnswer } = useQuizContext();
+    const [actualAnswer, setActualAnswer] = useState<AnswerType>(answer || []);
+    const question = questions[Number(index)].question as ShortAnswerQuestion;
 
     useEffect(() => {
-    if (passedAnswer !== undefined) {
-        setAnswer(passedAnswer);
+        if (answer !== undefined) {
+            setActualAnswer(answer);
         }
-    }, [passedAnswer]);
-    console.log("Answer" , answer);
+    }, [answer]);
+    console.log("Answer", actualAnswer);
 
     return (
+        <QuizContext.Consumer>
+            {({ showAnswer }) => (
                 <div className="question-wrapper">
                     <div className="question content">
                         <div dangerouslySetInnerHTML={{ __html: FormattedTextTemplate(question.formattedStem) }} />
@@ -43,7 +41,7 @@ const ShortAnswerQuestionDisplay: React.FC<Props> = (props) => {
                                     ))}
                                 </span>
                                 <span>
-                        <strong>Votre réponse est: </strong>{answer}
+                                    <strong>Votre réponse est: </strong>{actualAnswer}
                                 </span>
                             </div>
                             {question.formattedGlobalFeedback && <div className="global-feedback mb-2">
@@ -58,21 +56,21 @@ const ShortAnswerQuestionDisplay: React.FC<Props> = (props) => {
                                     id={question.formattedStem.text}
                                     name={question.formattedStem.text}
                                     onChange={(e) => {
-                                setAnswer([e.target.value]);
+                                        setActualAnswer([e.target.value]);
                                     }}
                                     disabled={showAnswer}
                                     aria-label="short-answer-input"
                                 />
                             </div>
-                    {handleOnSubmitAnswer && (
+                            {submitAnswer && (
                                 <Button
                                     variant="contained"
                                     onClick={() =>
-                                answer !== undefined &&
-                                handleOnSubmitAnswer &&
-                                handleOnSubmitAnswer(answer)
+                                        actualAnswer !== undefined &&
+                                        submitAnswer &&
+                                        submitAnswer(actualAnswer)
                                     }
-                            disabled={answer === null || answer === undefined || answer.length === 0}
+                                    disabled={actualAnswer === null || actualAnswer === undefined || actualAnswer.length === 0}
                                 >
                                     Répondre
                                 </Button>
@@ -80,6 +78,8 @@ const ShortAnswerQuestionDisplay: React.FC<Props> = (props) => {
                         </>
                     )}
                 </div>
+            )}
+        </QuizContext.Consumer>
     );
 };
 

client/src/components/QuestionsDisplay/TrueFalseQuestionDisplay/TrueFalseQuestionDisplay.tsx

@@ -4,51 +4,43 @@ import '../questionStyle.css';
 import { Button } from '@mui/material';
 import { TrueFalseQuestion } from 'gift-pegjs';
 import { FormattedTextTemplate } from 'src/components/GiftTemplate/templates/TextTypeTemplate';
-import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
 import { QuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
-interface Props {
-    question: TrueFalseQuestion;
-    handleOnSubmitAnswer?: (answer: AnswerType) => void;
-    // showAnswer?: boolean;
-    passedAnswer?: AnswerType;
-}
 
-const TrueFalseQuestionDisplay: React.FC<Props> = (props) => {
-    const { question, 
-        // showAnswer, 
-        handleOnSubmitAnswer, passedAnswer } =
-        props;
+const TrueFalseQuestionDisplay: React.FC = () => {
     
-    const [answer, setAnswer] = useState<boolean | undefined>(() => {
-        if (passedAnswer && (passedAnswer[0] === true || passedAnswer[0] === false)) {
-            return passedAnswer[0];
+    const { questions, index, answer, submitAnswer } = useQuizContext();
+
+    const question = questions[Number(index)].question as TrueFalseQuestion;
+
+    const [actualAnswer, setActualAnswer] = useState<boolean | undefined>(() => {
+        if (answer && (answer[0] === true || answer[0] === false)) {
+            return answer[0];
         }
         return undefined;
     });
 
     let disableButton = false;
-    if (handleOnSubmitAnswer === undefined) {
+    if (submitAnswer === undefined) {
         disableButton = true;
     }
 
-
-
     useEffect(() => {
-        console.log("passedAnswer", passedAnswer);
-        if (passedAnswer && (passedAnswer[0] === true || passedAnswer[0] === false)) {
-            setAnswer(passedAnswer[0]);
+        console.log("passedAnswer", answer);
+        if (answer && (answer[0] === true || answer[0] === false)) {
+            setActualAnswer(answer[0]);
         } else {
-            setAnswer(undefined);
+            setActualAnswer(undefined);
         }
-    }, [passedAnswer, question.id]);
+    }, [answer, index]);
 
     const handleOnClickAnswer = (choice: boolean) => {
-        setAnswer(choice);
+        setActualAnswer(choice);
     };
 
-    const selectedTrue = answer ? 'selected' : '';
-    const selectedFalse = answer !== undefined && !answer ? 'selected' : '';
+    const selectedTrue = actualAnswer ? 'selected' : '';
+    const selectedFalse = actualAnswer !== undefined && !actualAnswer ? 'selected' : '';
 
     return (
         <QuizContext.Consumer>
@@ -76,7 +68,7 @@ const TrueFalseQuestionDisplay: React.FC<Props> = (props) => {
                             <div className={`circle ${selectedTrue}`}>V</div>
                             <div className={`answer-text ${selectedTrue}`}>Vrai</div>
 
-                            {showAnswer && answer && question.trueFormattedFeedback && (
+                            {showAnswer && actualAnswer && question.trueFormattedFeedback && (
                                 <div className="true-feedback mb-2">
                                     <div
                                         dangerouslySetInnerHTML={{
@@ -102,7 +94,7 @@ const TrueFalseQuestionDisplay: React.FC<Props> = (props) => {
                             <div className={`circle ${selectedFalse}`}>F</div>
                             <div className={`answer-text ${selectedFalse}`}>Faux</div>
 
-                            {showAnswer && !answer && question.falseFormattedFeedback && (
+                            {showAnswer && !actualAnswer && question.falseFormattedFeedback && (
                                 <div className="false-feedback mb-2">
                                     <div
                                         dangerouslySetInnerHTML={{
@@ -126,15 +118,15 @@ const TrueFalseQuestionDisplay: React.FC<Props> = (props) => {
                             />
                         </div>
                     )}
-                    {!showAnswer && handleOnSubmitAnswer && (
+                    {!showAnswer && submitAnswer && (
                         <Button
                             variant="contained"
                             onClick={() =>
-                                answer !== undefined &&
-                                handleOnSubmitAnswer &&
-                                handleOnSubmitAnswer([answer])
+                                actualAnswer !== undefined &&
+                                submitAnswer &&
+                                submitAnswer([actualAnswer])
                             }
-                            disabled={answer === undefined}
+                            disabled={actualAnswer === undefined}
                         >
                             Répondre
                         </Button>

client/src/components/StudentModeQuiz/StudentModeQuiz.tsx

@@ -1,32 +1,16 @@
 // StudentModeQuiz.tsx
 import React, { useEffect, useState } from 'react';
-import QuestionComponent from '../QuestionsDisplay/QuestionDisplay';
+import QuestionDisplay from '../QuestionsDisplay/QuestionDisplay';
 import '../../pages/Student/JoinRoom/joinRoom.css';
 import { QuestionType } from '../../Types/QuestionType';
 import { Button } from '@mui/material';
 import DisconnectButton from 'src/components/DisconnectButton/DisconnectButton';
-import { Question } from 'gift-pegjs';
-import { AnswerSubmissionToBackendType } from 'src/services/WebsocketService';
-import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
 import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
-interface StudentModeQuizProps {
-    questions: QuestionType[];
-    answers: AnswerSubmissionToBackendType[];
-    submitAnswer: (_answer: AnswerType, _idQuestion: number) => void;
-    disconnectWebSocket: () => void;
-}
-
-const StudentModeQuiz: React.FC<StudentModeQuizProps> = ({
-    questions,
-    answers,
-    submitAnswer,
-    disconnectWebSocket
-}) => {
-    const { setShowAnswer } = useQuizContext(); // Access setShowAnswer from context
+const StudentModeQuiz: React.FC = () => {
+    const { questions, answers, setIsQuestionSent, disconnectWebSocket, setShowAnswer } = useQuizContext(); // Access setShowAnswer from context
 
     const [questionInfos, setQuestion] = useState<QuestionType>(questions[0]);
-    const [isAnswerSubmitted, setIsAnswerSubmitted] = useState(false);
 
     const previousQuestion = () => {
         setQuestion(questions[Number(questionInfos.question?.id) - 2]);
@@ -35,7 +19,7 @@ const StudentModeQuiz: React.FC<StudentModeQuizProps> = ({
     useEffect(() => {
         const savedAnswer = answers[Number(questionInfos.question.id) - 1]?.answer;
         console.log(`StudentModeQuiz: useEffect: savedAnswer: ${savedAnswer}`);
-        setIsAnswerSubmitted(savedAnswer !== undefined);
+        setIsQuestionSent(savedAnswer !== undefined);
         setShowAnswer(savedAnswer !== undefined); // Update showAnswer in context
     }, [questionInfos.question, answers, setShowAnswer]);
 
@@ -43,13 +27,6 @@ const StudentModeQuiz: React.FC<StudentModeQuizProps> = ({
         setQuestion(questions[Number(questionInfos.question?.id)]);
     };
 
-    const handleOnSubmitAnswer = (answer: AnswerType) => {
-        const idQuestion = Number(questionInfos.question.id) || -1;
-        submitAnswer(answer, idQuestion);
-        setIsAnswerSubmitted(true);
-        setShowAnswer(true); // Update showAnswer in context when an answer is submitted
-    };
-
     return (
         <div className="room">
             <div className="roomHeader">
@@ -63,12 +40,7 @@ const StudentModeQuiz: React.FC<StudentModeQuizProps> = ({
             </div>
             <div className="overflow-auto">
                 <div className="question-component-container">
-                    <QuestionComponent
-                        handleOnSubmitAnswer={handleOnSubmitAnswer}
-                        question={questionInfos.question as Question}
-                        showAnswer={isAnswerSubmitted} // Local state for showing answers
-                        answer={answers[Number(questionInfos.question.id) - 1]?.answer}
-                    />
+                    <QuestionDisplay/>
                     <div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', marginTop: '1rem' }}>
                         <div>
                             <Button

client/src/components/TeacherModeQuiz/TeacherModeQuiz.tsx

@@ -1,64 +1,55 @@
 // TeacherModeQuiz.tsx
 import React, { useEffect, useState } from 'react';
-import QuestionComponent from '../QuestionsDisplay/QuestionDisplay';
+import QuestionDisplay from '../QuestionsDisplay/QuestionDisplay';
 import '../../pages/Student/JoinRoom/joinRoom.css';
-import { QuestionType } from '../../Types/QuestionType';
 import DisconnectButton from 'src/components/DisconnectButton/DisconnectButton';
 import { Dialog, DialogTitle, DialogContent, DialogActions, Button } from '@mui/material';
-import { Question } from 'gift-pegjs';
-import { AnswerSubmissionToBackendType } from 'src/services/WebsocketService';
-import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
-// import { AnswerType } from 'src/pages/Student/JoinRoom/JoinRoom';
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
-interface TeacherModeQuizProps {
-    questionInfos: QuestionType;
-    answers: AnswerSubmissionToBackendType[];
-    submitAnswer: (_answer: AnswerType, _idQuestion: number) => void;
-    disconnectWebSocket: () => void;
-}
 
-const TeacherModeQuiz: React.FC<TeacherModeQuizProps> = ({
-    questionInfos,
+const TeacherModeQuiz: React.FC = () => {
+    const {
+        questions,
         answers,
-    submitAnswer,
-    disconnectWebSocket
-}) => {
-    const [isAnswerSubmitted, setIsAnswerSubmitted] = useState(false);
-    const [isFeedbackDialogOpen, setIsFeedbackDialogOpen] = useState(false);
-    const [answer, setAnswer] = useState<AnswerType>();
+        setShowAnswer,
+        disconnectWebSocket,
+        index,
+        isQuestionSent,
+        setIsQuestionSent,
+        answer,
+        setAnswer,
+    } = useQuizContext();
     
+    const [isAnswerSubmitted, setIsAnswerSubmitted] = useState(false);
 
     // arrive here the first time after waiting for next question
     useEffect(() => {
+            console.log(`QuestionDisplay: questions: ${JSON.stringify(questions)}`);
+        
         console.log(`TeacherModeQuiz: useEffect: answers: ${JSON.stringify(answers)}`);
-        console.log(`TeacherModeQuiz: useEffect: questionInfos.question.id: ${questionInfos.question.id} answer: ${answer}`);
-        const oldAnswer = answers[Number(questionInfos.question.id) -1 ]?.answer;
+        console.log(`TeacherModeQuiz: useEffect: questionInfos.question.id: ${index} answer: ${answer}`);
+        const oldAnswer = answers[Number(index) -1 ]?.answer;
         console.log(`TeacherModeQuiz: useEffect: oldAnswer: ${oldAnswer}`);
         setAnswer(oldAnswer);
-        setIsFeedbackDialogOpen(false);
-    }, [questionInfos.question, answers]);
+        setShowAnswer(false);
+        setIsQuestionSent(false);
+    }, [questions[Number(index)].question, answers]);
 
     // handle showing the feedback dialog
     useEffect(() => {
         console.log(`TeacherModeQuiz: useEffect: answer: ${answer}`);
         setIsAnswerSubmitted(answer !== undefined);
-        setIsFeedbackDialogOpen(answer !== undefined);
+        setIsQuestionSent(answer !== undefined);
     }, [answer]);
 
     useEffect(() => {
         console.log(`TeacherModeQuiz: useEffect: isAnswerSubmitted: ${isAnswerSubmitted}`);
-        setIsFeedbackDialogOpen(isAnswerSubmitted);
+        setIsQuestionSent(isAnswerSubmitted);
+        setShowAnswer(isAnswerSubmitted);
     }, [isAnswerSubmitted]);
 
-    const handleOnSubmitAnswer = (answer: AnswerType) => {
-        const idQuestion = Number(questionInfos.question.id) || -1;
-        submitAnswer(answer, idQuestion);
-        // setAnswer(answer);
-        setIsFeedbackDialogOpen(true);
-    };
-
     const handleFeedbackDialogClose = () => {
-        setIsFeedbackDialogOpen(false);
+        setIsQuestionSent(false);
         setIsAnswerSubmitted(true);
     };
 
@@ -71,7 +62,7 @@ const TeacherModeQuiz: React.FC<TeacherModeQuizProps> = ({
                     message={`Êtes-vous sûr de vouloir quitter?`} />
 
                 <div className='centerTitle'>
-                    <div className='title'>Question {questionInfos.question.id}</div>
+                    <div className='title'>Question {index}</div>
                 </div>
 
                 <div className='dumb'></div>
@@ -83,15 +74,11 @@ const TeacherModeQuiz: React.FC<TeacherModeQuizProps> = ({
                     En attente pour la prochaine question...
                 </div>
             ) : (
-                <QuestionComponent
-                    handleOnSubmitAnswer={handleOnSubmitAnswer}
-                    question={questionInfos.question as Question}
-                    answer={answer}
-                />
+                <QuestionDisplay/>
             )}
 
             <Dialog
-                open={isFeedbackDialogOpen}
+                open={isQuestionSent}
                 onClose={handleFeedbackDialogClose}
             >
                 <DialogTitle>Rétroaction</DialogTitle>
@@ -106,12 +93,8 @@ const TeacherModeQuiz: React.FC<TeacherModeQuizProps> = ({
                         >Question : </div>
                     </div>
 
-                    <QuestionComponent
-                        handleOnSubmitAnswer={handleOnSubmitAnswer}
-                        question={questionInfos.question as Question}
-                        showAnswer={true}
-                        answer={answer}
-
+                    <QuestionDisplay
+                        //showAnswer={true}
                     />
                 </DialogContent>
                 <DialogActions>

client/src/pages/Student/JoinRoom/JoinRoom.tsx

@@ -15,23 +15,38 @@ import LoadingButton from '@mui/lab/LoadingButton';
 
 import LoginContainer from 'src/components/LoginContainer/LoginContainer'
 
-import ApiService from '../../../services/ApiService'
-import { QuizProvider } from './QuizProvider';
+import { useQuizContext } from './QuizContext';
+
 
 export type AnswerType = Array<string | number | boolean>;
 
 const JoinRoom: React.FC = () => {
-    const [roomName, setRoomName] = useState('');
-    const [username, setUsername] = useState(ApiService.getUsername());
+    const {
+        setQuestions,
+        setAnswers,
+        questions,
+        username,
+        setUsername,
+        setDisconnectWebSocket,
+        roomName,
+        setRoomName,
+        index,
+        updateIndex,
+
+    } = useQuizContext();
+
     const [socket, setSocket] = useState<Socket | null>(null);
     const [isWaitingForTeacher, setIsWaitingForTeacher] = useState(false);
-    const [question, setQuestion] = useState<QuestionType>();
     const [quizMode, setQuizMode] = useState<string>();
-    const [questions, setQuestions] = useState<QuestionType[]>([]);
-    const [answers, setAnswers] = useState<AnswerSubmissionToBackendType[]>([]);
     const [connectionError, setConnectionError] = useState<string>('');
     const [isConnecting, setIsConnecting] = useState<boolean>(false);
 
+
+    useEffect(() => {
+        // Set the disconnectWebSocket function in the context
+        setDisconnectWebSocket(() => disconnect);
+    }, [socket]);
+
     useEffect(() => {
         handleCreateSocket();
         return () => {
@@ -42,6 +57,7 @@ const JoinRoom: React.FC = () => {
     useEffect(() => {
         console.log(`JoinRoom: useEffect: questions: ${JSON.stringify(questions)}`);
         setAnswers(questions ? Array(questions.length).fill({} as AnswerSubmissionToBackendType) : []);
+        console.log(`JoinRoom: useEffect: answers: ${JSON.stringify(questions)}`);
     }, [questions]);
 
 
@@ -58,13 +74,13 @@ const JoinRoom: React.FC = () => {
             console.log('JoinRoom: on(next-question): Received next-question:', question);
             setQuizMode('teacher');
             setIsWaitingForTeacher(false);
-            setQuestion(question);
+            updateIndex(Number(question.question.id));
         });
         socket.on('launch-teacher-mode', (questions: QuestionType[]) => {
             console.log('on(launch-teacher-mode): Received launch-teacher-mode:', questions);
             setQuizMode('teacher');
             setIsWaitingForTeacher(true);
-            setQuestions([]);  // clear out from last time (in case quiz is repeated)
+            updateIndex(null);
             setQuestions(questions);
             // wait for next-question
         });
@@ -75,7 +91,7 @@ const JoinRoom: React.FC = () => {
             setIsWaitingForTeacher(false);
             setQuestions([]);  // clear out from last time (in case quiz is repeated)
             setQuestions(questions);
-            setQuestion(questions[0]);
+            updateIndex(0);
         });
         socket.on('end-quiz', () => {
             disconnect();
@@ -105,7 +121,7 @@ const JoinRoom: React.FC = () => {
         //        localStorage.clear();
         webSocketService.disconnect();
         setSocket(null);
-        setQuestion(undefined);
+        updateIndex(null);
         setIsWaitingForTeacher(false);
         setQuizMode('');
         setRoomName('');
@@ -127,25 +143,6 @@ const JoinRoom: React.FC = () => {
         }
     };
 
-    const handleOnSubmitAnswer = (answer: AnswerType, idQuestion: number) => {
-        console.info(`JoinRoom: handleOnSubmitAnswer: answer: ${answer}, idQuestion: ${idQuestion}`);
-        const answerData: AnswerSubmissionToBackendType = {
-            roomName: roomName,
-            answer: answer,
-            username: username,
-            idQuestion: idQuestion
-        };
-        // localStorage.setItem(`Answer${idQuestion}`, JSON.stringify(answer));
-        setAnswers((prevAnswers) => {
-            console.log(`JoinRoom: handleOnSubmitAnswer: prevAnswers: ${JSON.stringify(prevAnswers)}`);
-            const newAnswers = [...prevAnswers]; // Create a copy of the previous answers array
-            newAnswers[idQuestion - 1] = answerData; // Update the specific answer
-            return newAnswers; // Return the new array
-        });
-        console.log(`JoinRoom: handleOnSubmitAnswer: answers: ${JSON.stringify(answers)}`);
-        webSocketService.submitAnswer(answerData);
-    };
-
     const handleReturnKey = (e: React.KeyboardEvent<HTMLInputElement>) => {
         if (e.key === 'Enter' && username && roomName) {
             handleSocket();
@@ -176,26 +173,16 @@ const JoinRoom: React.FC = () => {
     }
 
     switch (quizMode) {
+
+
         case 'student':
             return (
-                <QuizProvider>
-                    <StudentModeQuiz
-                        questions={questions}
-                        answers={answers}
-                        submitAnswer={handleOnSubmitAnswer}
-                        disconnectWebSocket={disconnect}
-                    />
-                </QuizProvider>
+                <StudentModeQuiz />
             );
         case 'teacher':
             return (
-                question && (
-                    <TeacherModeQuiz
-                        questionInfos={question}
-                        answers={answers}
-                        submitAnswer={handleOnSubmitAnswer}
-                        disconnectWebSocket={disconnect}
-                    />
+                index != null && (
+                    <TeacherModeQuiz />
                 )
             );
         default:

client/src/pages/Student/JoinRoom/QuizContext.tsx

@@ -1,12 +1,49 @@
 import React, { Dispatch, SetStateAction, useContext } from 'react';
-
+import { QuestionType } from '../../../Types/QuestionType';
+import { AnswerSubmissionToBackendType } from '../../../services/WebsocketService';
+import { AnswerType } from './JoinRoom';
 
 export const QuizContext = React.createContext<{
     showAnswer: boolean;
     setShowAnswer: Dispatch<SetStateAction<boolean>>;
+    questions: QuestionType[];
+    setQuestions: Dispatch<SetStateAction<QuestionType[]>>;
+    answers: AnswerSubmissionToBackendType[];
+    setAnswers: Dispatch<SetStateAction<AnswerSubmissionToBackendType[]>>;
+    answer : AnswerType;
+    setAnswer: Dispatch<SetStateAction<AnswerType>>;
+    index: number | null; // Add index to the context
+    updateIndex: (questionId: number | null) => void; // Add a function to update the index
+    submitAnswer: (answer: AnswerType, idQuestion?: number) => void; // Updated submitAnswer signature
+    isQuestionSent: boolean;
+    setIsQuestionSent: Dispatch<SetStateAction<boolean>>;
+    roomName: string;
+    setRoomName: Dispatch<SetStateAction<string>>; 
+    username: string; // Username of the user
+    setUsername: Dispatch<SetStateAction<string>>; // Setter for username
+    disconnectWebSocket: () => void; // Function to disconnect the WebSocket
+    setDisconnectWebSocket: Dispatch<SetStateAction<() => void>>; // Setter for disconnectWebSocket
+    
 }>({
     showAnswer: false,
     setShowAnswer: () => {},
+    questions: [],
+    setQuestions: () => {},
+    answers: [],
+    setAnswers: () => {},
+    answer: [], // Default value for answer
+    setAnswer: () => {}, // Default no-op function
+    index: null, // Default value for index
+    updateIndex: () => {}, // Default no-op function
+    submitAnswer: () => {}, // Default no-op function
+    isQuestionSent: false,
+    setIsQuestionSent: () => {},
+    username: '', // Default value for username
+    setUsername: () => {}, // Default no-op function
+    roomName: '', // Default value for roomName
+    setRoomName: () => {}, // Default no-op function
+    disconnectWebSocket: () => {}, // Default no-op function
+    setDisconnectWebSocket: () => {}, // Default no-op function
 });
 
 export const useQuizContext = () => {

client/src/pages/Student/JoinRoom/QuizProvider.tsx

@@ -1,18 +1,95 @@
-import React, { useEffect, useState } from 'react';
+import React, { useState } from 'react';
 import { QuizContext } from './QuizContext';
+import { QuestionType } from '../../../Types/QuestionType';
+import { AnswerSubmissionToBackendType } from '../../../services/WebsocketService';
+import { AnswerType } from './JoinRoom';
+import webSocketService from '../../../services/WebsocketService';
+import ApiService from '../../../services/ApiService'
+
 
 export const QuizProvider: React.FC<{ children: React.ReactNode }> = ({ children }) => {
+    
     // State for showing answers
     const [showAnswer, setShowAnswer] = useState(false);
 
-    console.log('QuizProvider: showAnswer:', showAnswer);
+    // State for managing the list of questions
+    const [questions, setQuestions] = useState<QuestionType[]>([]);
 
-    useEffect(() => {
-        console.log('QuizProvider: showAnswer:', showAnswer);
-    }, [showAnswer]);
+    // State for managing the list of answers
+    const [answers, setAnswers] = useState<AnswerSubmissionToBackendType[]>([]);
+
+    // Calculate the index based on the current question's ID
+    const [index, setIndex] = useState<number | null>(null);
+
+    const [answer, setAnswer] = useState<AnswerType>([]); // Initialize answer as an empty array
+    
+    const [isQuestionSent, setIsQuestionSent] = useState(false);
+
+    const [username, setUsername] = useState<string>(ApiService.getUsername());
+
+    const [roomName, setRoomName] = useState<string>(''); // Add roomName state
+
+    const [disconnectWebSocket, setDisconnectWebSocket] = useState<() => void>(() => () => {});
+
+
+    const updateIndex = (questionId: number | null) => {
+        const questionIndex = questions.findIndex((q) => q.question.id === String(questionId));
+        setIndex(questionIndex >= 0 ? questionIndex : null);
+    };
+
+    // Function to handle answer submission
+    const submitAnswer = (answer: AnswerType, idQuestion?: number) => {
+        if (!idQuestion) {
+            setAnswer(answer);
+            setIsQuestionSent(true);
+            console.log('index',index);
+        } else {
+        console.info(`QuizProvider: submitAnswer: answer: ${answer}, idQuestion: ${idQuestion}`);
+        const answerData: AnswerSubmissionToBackendType = {
+            roomName: roomName,
+            answer: answer,
+            username: username,
+            idQuestion: idQuestion,
+        };
+
+        // Update the answers state
+        setAnswers((prevAnswers) => {
+            const newAnswers = [...prevAnswers]; // Create a copy of the previous answers array
+            newAnswers[idQuestion - 1] = answerData; // Update the specific answer
+            return newAnswers; // Return the new array
+        });
+
+        console.log(`QuizProvider: submitAnswer: answers: ${JSON.stringify(answers)}`);
+
+        // Submit the answer to the WebSocket service
+        webSocketService.submitAnswer(answerData);
+        }
+    };
 
     return (
-        <QuizContext.Provider value={{ showAnswer, setShowAnswer }}>
+        <QuizContext.Provider
+            value={{
+                showAnswer,
+                setShowAnswer,
+                questions,
+                setQuestions,
+                answers,
+                setAnswers,
+                answer,
+                setAnswer,
+                index, // Expose the index in the context
+                updateIndex, // Expose a function to update the index
+                submitAnswer, // Expose submitAnswer in the context
+                isQuestionSent,
+                setIsQuestionSent,
+                username,
+                setUsername,
+                roomName,
+                setRoomName,
+                disconnectWebSocket,
+                setDisconnectWebSocket,
+            }}
+        >
             {children}
         </QuizContext.Provider>
     );

client/src/pages/Teacher/ManageRoom/ManageRoom.tsx

@@ -1,7 +1,7 @@
 import React, { useEffect, useState } from 'react';
 import { useNavigate, useParams } from 'react-router-dom';
 import { Socket } from 'socket.io-client';
-import { BaseQuestion, parse, Question } from 'gift-pegjs';
+import { BaseQuestion, parse /*Question*/ } from 'gift-pegjs';
 import LiveResultsComponent from 'src/components/LiveResults/LiveResults';
 import webSocketService, {
     AnswerReceptionFromBackendType
@@ -20,17 +20,24 @@ import ApiService from '../../../services/ApiService';
 import { QuestionType } from 'src/Types/QuestionType';
 import { Button } from '@mui/material';
 import { checkIfIsCorrect } from './useRooms';
+import { useQuizContext } from 'src/pages/Student/JoinRoom/QuizContext';
 
 const ManageRoom: React.FC = () => {
+    const {
+            questions,
+            setQuestions,
+            index,
+            updateIndex,
+        } = useQuizContext();
+
+
     const navigate = useNavigate();
     const [socket, setSocket] = useState<Socket | null>(null);
     const [students, setStudents] = useState<StudentType[]>([]);
     const { quizId = '', roomName = '' }  = useParams<{ quizId: string, roomName: string }>();
-    const [quizQuestions, setQuizQuestions] = useState<QuestionType[] | undefined>();
     const [quiz, setQuiz] = useState<QuizType | null>(null);
     const [quizMode, setQuizMode] = useState<'teacher' | 'student'>('teacher');
     const [connectingError, setConnectingError] = useState<string>('');
-    const [currentQuestion, setCurrentQuestion] = useState<QuestionType | undefined>(undefined);
     const [quizStarted, setQuizStarted] = useState<boolean>(false);
     const [formattedRoomName, setFormattedRoomName] = useState("");
     const [newlyConnectedUser, setNewlyConnectedUser] = useState<StudentType | null>(null);
@@ -51,12 +58,12 @@ const ManageRoom: React.FC = () => {
             if (quizMode === 'teacher') {
                 webSocketService.nextQuestion({
                     roomName: formattedRoomName,
-                    questions: quizQuestions,
-                    questionIndex: Number(currentQuestion?.question.id) - 1,
+                    questions: questions,
+                    questionIndex: Number(index),
                     isLaunch: true // started late
                 });
             } else if (quizMode === 'student') {
-                webSocketService.launchStudentModeQuiz(formattedRoomName, quizQuestions);
+                webSocketService.launchStudentModeQuiz(formattedRoomName, questions);
             } else {
                 console.error('Invalid quiz mode:', quizMode);
             }
@@ -126,8 +133,8 @@ const ManageRoom: React.FC = () => {
             webSocketService.endQuiz(formattedRoomName);
             webSocketService.disconnect();
             setSocket(null);
-            setQuizQuestions(undefined);
-            setCurrentQuestion(undefined);
+            setQuestions([]);
+            updateIndex(null);
             setStudents(new Array<StudentType>());
         }
     };
@@ -187,7 +194,7 @@ const ManageRoom: React.FC = () => {
                 console.log(
                     `Received answer from ${username} for question ${idQuestion}: ${answer}`
                 );
-                if (!quizQuestions) {
+                if (!questions) {
                     console.log('Quiz questions not found (cannot update answers without them).');
                     return;
                 }
@@ -218,7 +225,7 @@ const ManageRoom: React.FC = () => {
                                               isCorrect: checkIfIsCorrect(
                                                   answer,
                                                   idQuestion,
-                                                  quizQuestions!
+                                                  questions!
                                               )
                                           }
                                         : ans;
@@ -227,7 +234,7 @@ const ManageRoom: React.FC = () => {
                                 const newAnswer = {
                                     idQuestion,
                                     answer,
-                                    isCorrect: checkIfIsCorrect(answer, idQuestion, quizQuestions!)
+                                    isCorrect: checkIfIsCorrect(answer, idQuestion, questions!)
                                 };
                                 updatedAnswers = [...student.answers, newAnswer];
                             }
@@ -243,30 +250,30 @@ const ManageRoom: React.FC = () => {
             });
             setSocket(socket);
         }
-    }, [socket, currentQuestion, quizQuestions]);
+    }, [socket, index, questions]);
 
     const nextQuestion = () => {
-        if (!quizQuestions || !currentQuestion || !quiz?.content) return;
+        if (!questions || !index || !quiz?.content) return;
 
-        const nextQuestionIndex = Number(currentQuestion?.question.id);
+        const nextQuestionIndex = index;
 
-        if (nextQuestionIndex === undefined || nextQuestionIndex > quizQuestions.length - 1) return;
+        if (nextQuestionIndex === undefined || nextQuestionIndex > questions.length - 1) return;
 
-        setCurrentQuestion(quizQuestions[nextQuestionIndex]);
+        updateIndex(nextQuestionIndex);
         webSocketService.nextQuestion({roomName: formattedRoomName, 
-                                       questions: quizQuestions, 
+                                       questions: questions, 
                                        questionIndex: nextQuestionIndex, 
                                        isLaunch: false});
     };
 
     const previousQuestion = () => {
-        if (!quizQuestions || !currentQuestion || !quiz?.content) return;
+        if (!questions || !index || !quiz?.content) return;
 
-        const prevQuestionIndex = Number(currentQuestion?.question.id) - 2; // -2 because question.id starts at index 1
+        const prevQuestionIndex = index - 1; // -2 because question.id starts at index 1
 
         if (prevQuestionIndex === undefined || prevQuestionIndex < 0) return;
-        setCurrentQuestion(quizQuestions[prevQuestionIndex]);
-        webSocketService.nextQuestion({roomName: formattedRoomName, questions: quizQuestions, questionIndex: prevQuestionIndex, isLaunch: false});
+        updateIndex(prevQuestionIndex);
+        webSocketService.nextQuestion({roomName: formattedRoomName, questions: questions, questionIndex: prevQuestionIndex, isLaunch: false});
     };
 
     const initializeQuizQuestion = () => {
@@ -280,33 +287,33 @@ const ManageRoom: React.FC = () => {
         });
         if (parsedQuestions.length === 0) return null;
 
-        setQuizQuestions(parsedQuestions);
+        setQuestions(parsedQuestions);
         return parsedQuestions;
     };
 
     const launchTeacherMode = () => {
-        const quizQuestions = initializeQuizQuestion();
-        console.log('launchTeacherMode - quizQuestions:', quizQuestions);
+        const questions = initializeQuizQuestion();
+        console.log('launchTeacherMode - quizQuestions:', questions);
 
-        if (!quizQuestions) {
+        if (!questions) {
             console.log('Error launching quiz (launchTeacherMode). No questions found.');
             return;
         }
 
-        setCurrentQuestion(quizQuestions[0]);
-        webSocketService.nextQuestion({roomName: formattedRoomName, questions: quizQuestions, questionIndex: 0, isLaunch: true});
+        updateIndex(0);
+        webSocketService.nextQuestion({roomName: formattedRoomName, questions: questions, questionIndex: 0, isLaunch: true});
     };
 
     const launchStudentMode = () => {
-        const quizQuestions = initializeQuizQuestion();
-        console.log('launchStudentMode - quizQuestions:', quizQuestions);
+        const questions = initializeQuizQuestion();
+        console.log('launchStudentMode - quizQuestions:', questions);
 
-        if (!quizQuestions) {
+        if (!questions) {
             console.log('Error launching quiz (launchStudentMode). No questions found.');
             return;
         }
-        setQuizQuestions(quizQuestions);
-        webSocketService.launchStudentModeQuiz(formattedRoomName, quizQuestions);
+        setQuestions(questions);
+        webSocketService.launchStudentModeQuiz(formattedRoomName, questions);
     };
 
     const launchQuiz = () => {
@@ -328,10 +335,10 @@ const ManageRoom: React.FC = () => {
     };
 
     const showSelectedQuestion = (questionIndex: number) => {
-        if (quiz?.content && quizQuestions) {
-            setCurrentQuestion(quizQuestions[questionIndex]);
+        if (quiz?.content && questions) {
+            updateIndex(questionIndex);
             if (quizMode === 'teacher') {
-                webSocketService.nextQuestion({roomName: formattedRoomName, questions: quizQuestions, questionIndex, isLaunch: false});
+                webSocketService.nextQuestion({roomName: formattedRoomName, questions: questions, questionIndex, isLaunch: false});
             }
         }
     };
@@ -398,13 +405,13 @@ const ManageRoom: React.FC = () => {
 
             {/* the following breaks the css (if 'room' classes are nested) */}
             <div className="">
-                {quizQuestions ? (
+                {questions.length > 0 ? (
                     <div style={{ display: 'flex', flexDirection: 'column' }}>
                         <div className="title center-h-align mb-2">{quiz?.title}</div>
-                        {!isNaN(Number(currentQuestion?.question.id)) && (
+                        {index && (
                             <strong className="number of questions">
-                                Question {Number(currentQuestion?.question.id)}/
-                                {quizQuestions?.length}
+                                Question {index+1}/
+                                {questions?.length}
                             </strong>
                         )}
 
@@ -421,18 +428,14 @@ const ManageRoom: React.FC = () => {
 
                         <div className="mb-2 flex-column-wrapper">
                             <div className="preview-and-result-container">
-                                {currentQuestion && (
-                                    <QuestionDisplay
-                                        showAnswer={false}
-                                        question={currentQuestion?.question as Question}
-                                        
-                                    />
+                                {index && (
+                                    <QuestionDisplay/>
                                 )}
 
                                 <LiveResultsComponent
                                     quizMode={quizMode}
                                     socket={socket}
-                                    questions={quizQuestions}
+                                    questions={questions}
                                     showSelectedQuestion={showSelectedQuestion}
                                     students={students}
                                 ></LiveResultsComponent>
@@ -448,7 +451,7 @@ const ManageRoom: React.FC = () => {
                                     <Button
                                         onClick={previousQuestion}
                                         variant="contained"
-                                        disabled={Number(currentQuestion?.question.id) <= 1}
+                                        disabled={index !== null && index <= 1}
                                     >
                                         Question précédente
                                     </Button>
@@ -458,8 +461,8 @@ const ManageRoom: React.FC = () => {
                                         onClick={nextQuestion}
                                         variant="contained"
                                         disabled={
-                                            Number(currentQuestion?.question.id) >=
-                                            quizQuestions.length
+                                            index !== null && 
+                                            index >= questions.length
                                         }
                                     >
                                         Prochaine question