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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Interactive Python Chatbot</title>
    <link rel="stylesheet" type="text/css" href="/static/tempor.css">
    <script>
        let timer; // Timer variable
        let timeRemaining = 30; // Default time for each question
        let isTimeUp = false; // Flag to track if the timer expired
        const timerElement = document.createElement("div"); // Timer element

        async function sendMessage(event) {
            event.preventDefault();
            const userInput = document.getElementById("user_input").value.trim();
            if (!userInput) {
                alert("Please enter a valid message.");
                return;
            }

            const responseBox = document.getElementById("response-box");
            responseBox.innerHTML += `<p><strong>User:</strong> ${userInput}</p>`;

            try {
                const response = await fetch("/get_response", {
                    method: "POST",
                    headers: { "Content-Type": "application/json" },
                    body: JSON.stringify({ user_input: userInput }),
                });

                const data = await response.json();
                responseBox.innerHTML += `<p><strong>Chatbot:</strong> ${data.reply}</p>`;
                document.getElementById("user_input").value = "";
            } catch (error) {
                alert("Error: Unable to send the message.");
            }
        }

        async function startQuiz() {
            const difficulty = document.getElementById("difficulty").value;

            // Reset score to 0 when starting a new quiz
            document.getElementById("score-box").innerHTML = `Score: 0`;
            isTimeUp = false; // Reset timeUp flag

            try {
                const response = await fetch("/start_quiz", {
                    method: "POST",
                    headers: { "Content-Type": "application/json" },
                    body: JSON.stringify({ user_id: "default", level: difficulty }),
                });

                const data = await response.json();
                const quizBox = document.getElementById("quiz-box");

                if (data.question && data.options) {
                    timeRemaining = 30; // Reset timer for the first question

                    quizBox.innerHTML = `
                        <p class="quiz-question"><strong>Question:</strong> ${data.question}</p>
                        <form id="quiz-form">
                            ${data.options.map((option, index) => `
                                <div class="quiz-option">
                                    <input type="radio" id="option${index}" name="answer" value="${option.split('. ')[0]}">
                                    <label for="option${index}">${option}</label>
                                </div>
                            `).join('')}
                        </form>
                        <button type="button" class="btn btn-primary" onclick="submitAnswer()">Submit Answer</button>
                    `;
                    startTimer(); // Start the timer after rendering the first question
                } else {
                    quizBox.innerHTML = `<p class="quiz-end">Quiz finished! Great job!</p>`;
                    clearTimer();
                }
            } catch (error) {
                alert("Error: Unable to start the quiz.");
            }
        }

        async function submitAnswer() {
            clearTimer(); // Clear the timer when submitting an answer
            const form = document.getElementById("quiz-form");
            const answer = form.querySelector('input[name="answer"]:checked')?.value;

            if (!answer) {
                alert("Please select an answer.");
                return;
            }

            try {
                const response = await fetch("/submit_answer", {
                    method: "POST",
                    headers: { "Content-Type": "application/json" },
                    body: JSON.stringify({ answer, user_id: "default", timeUp: isTimeUp }),
                });

                const data = await response.json();
                const quizBox = document.getElementById("quiz-box");
                const scoreBox = document.getElementById("score-box");

                quizBox.innerHTML = `<p class="quiz-feedback">${data.reply}</p>`;
                scoreBox.innerHTML = `Score: ${data.score}`;

                if (data.next_question && data.options) {
                    timeRemaining = 30; // Reset the timer for the next question
                    isTimeUp = false; // Reset the flag for the next question
                    quizBox.innerHTML += `
                        <p class="quiz-question"><strong>Next Question:</strong> ${data.next_question}</p>
                        <form id="quiz-form">
                            ${data.options.map((option, index) => `
                                <div class="quiz-option">
                                    <input type="radio" id="option${index}" name="answer" value="${option.split('. ')[0]}">
                                    <label for="option${index}">${option}</label>
                                </div>
                            `).join('')}
                            <button type="button" class="btn btn-primary" onclick="submitAnswer()">Submit Answer</button>
                        </form>
                    `;
                    startTimer(); // Start the timer for the next question
                } else {
                    quizBox.innerHTML += `<p class="quiz-end">Quiz Completed! Great job!</p>`;
                }
            } catch (error) {
                alert("Error: Unable to submit the answer.");
            }
        }

        function startTimer() {
            clearTimer(); // Clear any existing timer
            const quizBox = document.getElementById("quiz-box");
            timerElement.textContent = `Time remaining: ${timeRemaining}s`;
            timerElement.className = "timer-display";
            quizBox.appendChild(timerElement);

            timer = setInterval(() => {
                timeRemaining--;
                timerElement.textContent = `Time remaining: ${timeRemaining}s`;

                if (timeRemaining <= 0) {
                    clearTimer();
                    isTimeUp = true; // Mark the timer as expired
                    alert("Time's up! Moving to the next question.");
                    submitAnswer(); // Automatically submit an empty answer
                }
            }, 1000);
        }

        function clearTimer() {
            clearInterval(timer);
            if (timerElement.parentNode) {
                timerElement.parentNode.removeChild(timerElement);
            }
        }

        async function clearHistory() {
            try {
                const response = await fetch("/clear_history", { method: "POST" });
                const data = await response.json();
                document.getElementById("response-box").innerHTML = "";
                document.getElementById("quiz-box").innerHTML = "";
                alert(data.reply || "Chat history cleared!");
            } catch (error) {
                alert("Error: Unable to clear history.");
            }
        }
    </script>
</head>
<body>
    <div id="main-container">
        <div id="header">
            <h1>Interactive Python Chatbot</h1>
        </div>
        <div id="content-container">
            <!-- Chatbot Section -->
            <div id="chat-section">
                <h2>Chatbot</h2>
                <div id="response-box"></div>
                <form id="chat-form" onsubmit="sendMessage(event)">
                    <input type="text" id="user_input" placeholder="Type your message..." required>
                    <button type="submit">Send</button>
                </form>
                <button class="clear-history-btn" onclick="clearHistory()">Clear History</button>
            </div>

            <!-- Quiz Section -->
            <div id="quiz-section">
                <h2>Quiz</h2>
                <div>
                    <label for="difficulty">Select Difficulty:</label>
                    <select id="difficulty">
                        <option value="beginner">Beginner</option>
                        <option value="intermediate">Intermediate</option>
                        <option value="advanced">Advanced</option>
                    </select>
                    <button class="btn btn-primary" onclick="startQuiz()">Start Quiz</button>
                </div>
                <div id="quiz-box"></div>
                <div id="score-box" style="margin-top: 10px; font-size: 16px; font-weight: bold; color: #0056b3;">Score: 0</div>
            </div>
        </div>
    </div>
</body>
</html>