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<!doctype html>
<html lang="en" data-bs-theme="dark">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Enter Question Details</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
    <div class="container mt-5">
        <div class="card bg-dark text-white">
            <div class="card-header">
                <h2>Step 3: Enter Question Details</h2>
            </div>
            <div class="card-body">
                <form id="questions-form">
                    <!-- NEW: Same Subject Toggle -->
                    <div class="form-check form-switch mb-4">
                        <input class="form-check-input" type="checkbox" role="switch" id="same-subject-toggle">
                        <label class="form-check-label" for="same-subject-toggle">Same Subject for All</label>
                    </div>

                    {% for image in images %}
                    <div class="row mb-4 border-bottom pb-3">
                        <div class="col-md-3">
                             <img src="/image/processed/{{ image.processed_filename or image.filename }}" class="img-fluid rounded">
                        </div>
                        <div class="col-md-9">
                            <h5>{{ image.original_name }}</h5>
                            <div class="row">
                                <div class="col-md-6 mb-2">
                                    <label class="form-label">Question Number</label>
                                    <input type="number" class="form-control" name="question_number_{{ loop.index0 }}" required>
                                </div>
                                <div class="col-md-6 mb-2">
                                    <label class="form-label">Subject</label>
                                    <input type="text" class="form-control subject-input" name="subject_{{ loop.index0 }}" data-index="{{ loop.index0 }}">
                                </div>
                                <div class="col-md-6 mb-2">
                                    <label class="form-label">Your Answer</label>
                                    <input type="text" class="form-control" name="marked_solution_{{ loop.index0 }}">
                                </div>
                                <div class="col-md-6 mb-2">
                                    <label class="form-label">Correct Answer</label>
                                    <input type="text" class="form-control" name="actual_solution_{{ loop.index0 }}">
                                </div>
                                <div class="col-md-6 mb-2">
                                    <label class="form-label">Status</label>
                                    <select class="form-select" name="status_{{ loop.index0 }}">
                                        <option value="correct">Correct</option>
                                        <option value="wrong">Wrong</option>
                                        <option value="unattempted">Unattempted</option>
                                    </select>
                                </div>
                                <!-- MODIFIED: Time Taken with Disable Checkbox -->
                                <div class="col-md-6 mb-2">
                                    <label class="form-label">Time Taken (s)</label>
                                    <div class="input-group">
                                        <input type="number" class="form-control time-input" name="time_taken_{{ loop.index0 }}" data-index="{{ loop.index0 }}">
                                        <div class="input-group-text">
                                            <input class="form-check-input mt-0 disable-time-cb" type="checkbox" title="Disable Time" data-index="{{ loop.index0 }}">
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                    {% endfor %}
                    
                    <hr>
                    
                    <h4>Generate PDF</h4>
                     <div class="row">
                         <div class="col-md-4 mb-2">
                             <label class="form-label">PDF Name</label>
                             <input type="text" id="pdf_name" class="form-control" value="My-Test-Analysis">
                         </div>
                         <div class="col-md-4 mb-2">
                            <label class="form-label">Images per Page</label>
                            <select id="images_per_page" class="form-select">
                                <option value="1">1</option> <option value="2">2</option>
                                <option value="4" selected>4</option> <option value="6">6</option>
                                <option value="8">8</option>
                            </select>
                         </div>
                          <div class="col-md-4 mb-2">
                            <label class="form-label">Filter Questions</label>
                            <select id="filter_type" class="form-select">
                                <option value="all">All Questions</option>
                                <option value="wrong">Wrong Only</option>
                                <option value="unattempted">Unattempted Only</option>
                            </select>
                         </div>
                     </div>
                    <button type="submit" class="btn btn-primary w-100 mt-3">Generate PDF</button>
                </form>
                 <div id="status" class="mt-3"></div>
            </div>
        </div>
    </div>

    <script>
        const numImages = {{ images|length }};
        const subjectInputs = document.querySelectorAll('.subject-input');
        
        // --- Logic for "Same Subject for All" ---
        document.getElementById('same-subject-toggle').addEventListener('change', function() {
            const isChecked = this.checked;
            subjectInputs.forEach((input, index) => {
                if (index > 0) { // All subjects except the first one
                    input.disabled = isChecked;
                    if(isChecked) {
                        input.value = subjectInputs[0].value; // Sync with the first
                    }
                }
            });
        });

        if(subjectInputs.length > 0){
            subjectInputs[0].addEventListener('input', function() {
                if (document.getElementById('same-subject-toggle').checked) {
                    const firstSubjectValue = this.value;
                    subjectInputs.forEach((input, index) => {
                        if (index > 0) {
                            input.value = firstSubjectValue;
                        }
                    });
                }
            });
        }

        // --- Logic for "Disable Time" Checkboxes ---
        document.querySelectorAll('.disable-time-cb').forEach(checkbox => {
            checkbox.addEventListener('change', function() {
                const index = this.dataset.index;
                const timeInput = document.querySelector(`.time-input[data-index='${index}']`);
                timeInput.disabled = this.checked;
                if(this.checked) timeInput.value = '';
            });
        });

        // --- Form Submission Logic ---
        document.getElementById('questions-form').addEventListener('submit', async function(e) {
            e.preventDefault();
            const statusDiv = document.getElementById('status');
            statusDiv.innerHTML = `<div class="alert alert-info">Saving data and generating PDF...</div>`;

            const questions = [];
            for (let i = 0; i < numImages; i++) {
                const timeInput = document.querySelector(`input[name='time_taken_${i}']`);
                const isTimeDisabled = document.querySelector(`.disable-time-cb[data-index='${i}']`).checked;
                
                questions.push({
                    question_number: document.querySelector(`input[name='question_number_${i}']`).value,
                    subject: document.querySelector(`input[name='subject_${i}']`).value,
                    status: document.querySelector(`select[name='status_${i}']`).value,
                    marked_solution: document.querySelector(`input[name='marked_solution_${i}']`).value,
                    actual_solution: document.querySelector(`input[name='actual_solution_${i}']`).value,
                    time_taken: isTimeDisabled ? 'x' : timeInput.value // Send 'x' if disabled
                });
            }
            
            const sessionId = '{{ session_id }}';
            
            // 1. Save questions data
            await fetch('/save_questions', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ session_id: sessionId, questions: questions })
            });

            // 2. Generate PDF
            const pdfResponse = await fetch('/generate_pdf', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({
                    session_id: sessionId,
                    pdf_name: document.getElementById('pdf_name').value,
                    images_per_page: parseInt(document.getElementById('images_per_page').value),
                    filter_type: document.getElementById('filter_type').value
                })
            });
            
            const result = await pdfResponse.json();
            
            if (result.error) {
                statusDiv.innerHTML = `<div class="alert alert-danger">${result.error}</div>`;
            } else {
                 statusDiv.innerHTML = `
                    <div class="alert alert-success">PDF generated successfully!</div>
                    <a href="/download/${result.pdf_filename}" class="btn btn-success w-100">Download PDF</a>
                `;
            }
        });
    </script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>