329 lines
16 KiB
PHP
329 lines
16 KiB
PHP
<?php
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session_start();
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require_once 'includes/auth_check_teacher.php';
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require_once 'db/config.php';
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// --- Database Fetch Functions ---
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function get_teachers($pdo, $school_id) {
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$stmt = $pdo->prepare("SELECT * FROM teachers WHERE school_id = ? ORDER BY name");
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$stmt->execute([$school_id]);
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return $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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function get_timeslots($pdo) {
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return $pdo->query("SELECT * FROM timeslots ORDER BY start_time")->fetchAll(PDO::FETCH_ASSOC);
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}
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function get_teacher_schedule($pdo, $teacher_id, $school_id) {
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$stmt = $pdo->prepare("
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SELECT
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s.id,
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s.day_of_week,
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s.timeslot_id,
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s.lesson_display_name,
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c.name as class_name,
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s.is_double,
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s.is_elective,
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s.is_horizontal_elective
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FROM schedules s
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JOIN classes c ON s.class_id = c.id
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JOIN schedule_teachers st ON s.id = st.schedule_id
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WHERE st.teacher_id = :teacher_id AND c.school_id = :school_id
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");
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$stmt->execute([':teacher_id' => $teacher_id, ':school_id' => $school_id]);
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return $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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// --- Main Logic ---
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$pdoconn = db();
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$school_id = $_SESSION['school_id'];
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$role = $_SESSION['role'];
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$user_id = $_SESSION['user_id'];
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$teachers = [];
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if ($role === 'admin') {
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$stmt = $pdoconn->prepare("SELECT * FROM teachers WHERE school_id = ? ORDER BY name");
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$stmt->execute([$school_id]);
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$teachers = $stmt->fetchAll(PDO::FETCH_ASSOC);
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} else { // Teacher
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$stmt = $pdoconn->prepare("SELECT * FROM teachers WHERE user_id = ? AND school_id = ?");
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$stmt->execute([$user_id, $school_id]);
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$teachers = $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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$timeslots = get_timeslots($pdoconn);
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$days_of_week = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];
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$selected_teacher_id = null;
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if ($role === 'admin') {
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$selected_teacher_id = isset($_GET['teacher_id']) ? $_GET['teacher_id'] : null;
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} else { // Teacher
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if (!empty($teachers)) {
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$selected_teacher_id = $teachers[0]['id'];
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}
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}
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$selected_teacher_name = '';
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$teacher_schedule_raw = [];
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if ($selected_teacher_id) {
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foreach ($teachers as $teacher) {
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if ($teacher['id'] == $selected_teacher_id) {
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$selected_teacher_name = $teacher['name'];
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break;
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}
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}
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$teacher_schedule_raw = get_teacher_schedule($pdoconn, $selected_teacher_id, $school_id);
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// Gemini: Log the data for debugging
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error_log("--- Teacher Timetable Debug ---");
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error_log("Selected Teacher ID: " . print_r($selected_teacher_id, true));
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error_log("Raw schedule data from DB: " . print_r($teacher_schedule_raw, true));
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}
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// Organize schedule for easy display
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$non_break_periods = array_values(array_filter($timeslots, function($ts) { return !$ts['is_break']; }));
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$timeslot_id_to_period_idx = [];
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foreach($non_break_periods as $idx => $period) {
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$timeslot_id_to_period_idx[$period['id']] = $idx;
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}
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$teacher_timetable_by_period = [];
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// Initialize the timetable array
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foreach ($days_of_week as $day_idx => $day) {
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$teacher_timetable_by_period[$day_idx] = array_fill(0, count($non_break_periods), null);
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}
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foreach ($teacher_schedule_raw as $lesson) {
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$day_idx = $lesson['day_of_week'];
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if (isset($timeslot_id_to_period_idx[$lesson['timeslot_id']])) {
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$period_idx = $timeslot_id_to_period_idx[$lesson['timeslot_id']];
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if (isset($teacher_timetable_by_period[$day_idx][$period_idx])) {
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// This slot is already filled, potentially by a multi-class elective.
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// Create an array if it's not already one.
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if (!is_array($teacher_timetable_by_period[$day_idx][$period_idx])) {
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$teacher_timetable_by_period[$day_idx][$period_idx] = [$teacher_timetable_by_period[$day_idx][$period_idx]];
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}
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$teacher_timetable_by_period[$day_idx][$period_idx][] = $lesson;
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} else {
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$teacher_timetable_by_period[$day_idx][$period_idx] = $lesson;
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}
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if (!empty($lesson['is_double']) && isset($teacher_timetable_by_period[$day_idx][$period_idx + 1])) {
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if (isset($teacher_timetable_by_period[$day_idx][$period_idx + 1])) {
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if (!is_array($teacher_timetable_by_period[$day_idx][$period_idx + 1])) {
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$teacher_timetable_by_period[$day_idx][$period_idx + 1] = [$teacher_timetable_by_period[$day_idx][$period_idx + 1]];
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}
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$teacher_timetable_by_period[$day_idx][$period_idx + 1][] = $lesson;
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} else {
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$teacher_timetable_by_period[$day_idx][$period_idx + 1] = $lesson;
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}
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}
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}
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}
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// Gemini: Log the final structure
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error_log("Final teacher_timetable_by_period structure: " . print_r($teacher_timetable_by_period, true));
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Teacher Timetable - Haki Schedule</title>
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
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<link rel="stylesheet" href="assets/css/custom.css?v=<?php echo time(); ?>">
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<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
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<style>
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@media print {
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body * {
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visibility: hidden;
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}
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#timetable-container, #timetable-container * {
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visibility: visible;
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}
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#timetable-container {
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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}
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.card {
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border: 1px solid #dee2e6 !important;
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box-shadow: none !important;
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}
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}
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</style>
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</head>
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<body>
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<?php require_once 'includes/navbar.php'; ?>
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<div class="container mt-4">
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<div class="d-flex justify-content-between align-items-center mb-4">
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<h1>Teacher Timetable</h1>
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<?php if ($selected_teacher_id): ?>
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<div class="d-flex gap-2">
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<button id="print-btn" class="btn btn-secondary">Print</button>
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<button id="download-btn" class="btn btn-secondary">Download as PDF</button>
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</div>
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<?php endif; ?>
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</div>
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<?php if ($role === 'admin'): ?>
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<form method="GET" action="" class="mb-4">
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<div class="row">
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<div class="col-md-4">
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<label for="teacher_id" class="form-label">Select Teacher</label>
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<select name="teacher_id" id="teacher_id" class="form-select" onchange="this.form.submit()">
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<option value="">-- Select a Teacher --</option>
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<?php foreach ($teachers as $teacher): ?>
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<option value="<?php echo $teacher['id']; ?>" <?php echo ($selected_teacher_id == $teacher['id']) ? 'selected' : ''; ?> >
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<?php echo htmlspecialchars($teacher['name']); ?>
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</option>
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<?php endforeach; ?>
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</select>
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</div>
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</div>
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</form>
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<?php endif; ?>
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<div id="timetable-container">
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<?php if ($selected_teacher_id && !empty($teacher_schedule_raw)): ?>
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<h3 class="mt-4">Timetable for <?php echo htmlspecialchars($selected_teacher_name); ?></h3>
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<div class="card">
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<div class="card-body">
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<table class="table table-bordered text-center">
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<thead>
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<tr>
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<th style="width: 12%;">Time</th>
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<?php foreach ($days_of_week as $day): ?>
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<th><?php echo $day; ?></th>
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<?php endforeach; ?>
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</tr>
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</thead>
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<tbody>
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<?php
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$period_idx = 0;
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foreach ($timeslots as $timeslot):
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?>
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<tr>
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<td>
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<strong><?php echo htmlspecialchars($timeslot['name']); ?></strong><br>
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<small class="text-muted"><?php echo date("g:i A", strtotime($timeslot['start_time'])); ?> - <?php echo date("g:i A", strtotime($timeslot['end_time'])); ?></small>
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</td>
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<?php if ($timeslot['is_break']) : ?>
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<td colspan="<?php echo count($days_of_week); ?>" class="text-center table-secondary"><strong>Break</strong></td>
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<?php else : ?>
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<?php for ($day_idx = 0; $day_idx < count($days_of_week); $day_idx++) : ?>
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<?php
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// Check if this cell should be skipped because of a rowspan from a double lesson above it.
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$skip_cell = false;
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if ($period_idx > 0) {
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$lesson_above = $teacher_timetable_by_period[$day_idx][$period_idx - 1] ?? null;
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if ($lesson_above && !empty($lesson_above['is_double'])) {
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// This logic needs to be robust. The simplest way is to check if the lesson in the previous period on the same day was a double.
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// However, the data structure might not be perfect. Let's check if the lesson ID matches.
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$current_lesson = $teacher_timetable_by_period[$day_idx][$period_idx] ?? null;
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if ($current_lesson && $lesson_above['id'] === $current_lesson['id']) {
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$skip_cell = true;
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}
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}
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}
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// A better approach for skipping: check the lesson itself.
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// The `get_timetable_from_db` in `timetable.php` duplicates the lesson entry for the second slot. Let's mimic that here for consistency.
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// We need to rebuild the array first.
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$lesson = $teacher_timetable_by_period[$day_idx][$period_idx] ?? null;
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// More reliable skip logic based on the logic from timetable.php
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$lesson_above = ($period_idx > 0) ? ($teacher_timetable_by_period[$day_idx][$period_idx - 1] ?? null) : null;
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if ($lesson_above && !empty($lesson_above['is_double']) && ($lesson_above['id'] ?? 'a') === ($lesson['id'] ?? 'b')) {
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// If the lesson above was a double and has the same ID as the current one, skip this cell.
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continue;
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}
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$rowspan = 1;
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if ($lesson && !empty($lesson['is_double'])) {
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// Check if the next timeslot is not a break to prevent rowspan over a break row
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$is_next_slot_a_break = false;
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$current_timeslot_index = -1;
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$timeslots_values = array_values($timeslots);
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foreach ($timeslots_values as $index => $ts) {
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if ($ts['id'] === $timeslot['id']) {
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$current_timeslot_index = $index;
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break;
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}
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}
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if ($current_timeslot_index !== -1 && isset($timeslots_values[$current_timeslot_index + 1])) {
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$next_timeslot = $timeslots_values[$current_timeslot_index + 1];
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if ($next_timeslot['is_break']) {
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$is_next_slot_a_break = true;
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}
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}
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if (!$is_next_slot_a_break) {
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$rowspan = 2;
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}
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}
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?>
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<td class="timetable-slot align-middle" rowspan="<?php echo $rowspan; ?>">
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<?php if ($lesson): ?>
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<div class="lesson p-1 h-100 d-flex flex-column justify-content-center">
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<strong><?php echo htmlspecialchars($lesson['lesson_display_name']); ?></strong><br>
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<small><?php echo htmlspecialchars($lesson['class_name']); ?></small>
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</div>
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<?php endif; ?>
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</td>
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<?php endfor; // day_idx ?>
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<?php $period_idx++; ?>
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<?php endif; // is_break ?>
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</tr>
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<?php endforeach; // timeslots ?>
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</tbody>
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</table>
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</div>
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</div>
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<?php elseif ($selected_teacher_id): ?>
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<div class="alert alert-info">No lessons scheduled for this teacher.</div>
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<?php endif; ?>
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</div>
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</div>
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<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
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<script>
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document.addEventListener('DOMContentLoaded', function () {
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<?php if ($selected_teacher_id): ?>
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const { jsPDF } = window.jspdf;
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document.getElementById('print-btn').addEventListener('click', function () {
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window.print();
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});
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document.getElementById('download-btn').addEventListener('click', function () {
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const element = document.getElementById('timetable-container');
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const teacherName = "<?php echo htmlspecialchars($selected_teacher_name, ENT_QUOTES, 'UTF-8'); ?>";
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const fileName = `timetable-${teacherName.replace(/\s+/g, '-').toLowerCase()}.pdf`;
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html2canvas(element, { scale: 2 }).then(canvas => {
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const imgData = canvas.toDataURL('image/png');
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const doc = new jsPDF({
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orientation: 'l',
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unit: 'pt',
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format: 'a4'
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});
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const imgWidth = doc.internal.pageSize.getWidth() - 40;
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const imgHeight = canvas.height * imgWidth / canvas.width;
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doc.addImage(imgData, 'PNG', 20, 20, imgWidth, imgHeight);
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doc.save(fileName);
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});
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});
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<?php endif; ?>
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});
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</script>
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</body>
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</html>
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