35791-vm/teacher_timetable.php
2025-12-07 17:25:20 +00:00

319 lines
16 KiB
PHP

<?php
session_start();
require_once 'includes/auth_check_teacher.php';
require_once 'db/config.php';
// --- Database Fetch Functions ---
function get_teachers($pdo, $school_id) {
$stmt = $pdo->prepare("SELECT * FROM teachers WHERE school_id = ? ORDER BY name");
$stmt->execute([$school_id]);
return $stmt->fetchAll(PDO::FETCH_ASSOC);
}
function get_timeslots($pdo) {
return $pdo->query("SELECT * FROM timeslots ORDER BY start_time")->fetchAll(PDO::FETCH_ASSOC);
}
function get_teacher_schedule($pdo, $teacher_id) {
$sql = "
SELECT
s.id,
s.day_of_week,
s.timeslot_id,
s.lesson_display_name,
c.name as class_name,
sub.name as subject_name, -- The specific subject for the teacher
s.is_double,
s.is_elective
FROM schedules s
JOIN schedule_teachers st ON s.id = st.schedule_id
LEFT JOIN classes c ON s.class_id = c.id
-- Find the specific subject this teacher teaches to this class from workloads
LEFT JOIN workloads w ON st.teacher_id = w.teacher_id AND s.class_id = w.class_id
LEFT JOIN subjects sub ON w.subject_id = sub.id
WHERE st.teacher_id = :teacher_id
ORDER BY s.day_of_week, s.timeslot_id
";
$stmt = $pdo->prepare($sql);
$stmt->execute([':teacher_id' => $teacher_id]);
return $stmt->fetchAll(PDO::FETCH_ASSOC);
}
// --- Main Logic ---
$pdoconn = db();
$school_id = $_SESSION['school_id'];
$role = $_SESSION['role'];
$user_id = $_SESSION['user_id'];
$teachers = [];
if ($role === 'admin') {
$stmt = $pdoconn->prepare("SELECT * FROM teachers WHERE school_id = ? ORDER BY name");
$stmt->execute([$school_id]);
$teachers = $stmt->fetchAll(PDO::FETCH_ASSOC);
} else { // Teacher
$stmt = $pdoconn->prepare("SELECT * FROM teachers WHERE user_id = ? AND school_id = ?");
$stmt->execute([$user_id, $school_id]);
$teachers = $stmt->fetchAll(PDO::FETCH_ASSOC);
}
$timeslots = get_timeslots($pdoconn);
$days_of_week = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];
$selected_teacher_id = null;
if ($role === 'admin') {
$selected_teacher_id = isset($_GET['teacher_id']) ? $_GET['teacher_id'] : null;
} else { // Teacher
if (!empty($teachers)) {
$selected_teacher_id = $teachers[0]['id'];
}
}
$selected_teacher_name = '';
$teacher_schedule_raw = [];
if ($selected_teacher_id) {
foreach ($teachers as $teacher) {
if ($teacher['id'] == $selected_teacher_id) {
$selected_teacher_name = $teacher['name'];
break;
}
}
$teacher_schedule_raw = get_teacher_schedule($pdoconn, $selected_teacher_id);
// Gemini: Log the data for debugging
error_log("--- Teacher Timetable Debug ---");
error_log("Selected Teacher ID: " . print_r($selected_teacher_id, true));
error_log("Raw schedule data from DB: " . print_r($teacher_schedule_raw, true));
}
// Organize schedule for easy display
$non_break_periods = array_values(array_filter($timeslots, function($ts) { return !$ts['is_break']; }));
$timeslot_id_to_period_idx = [];
foreach($non_break_periods as $idx => $period) {
$timeslot_id_to_period_idx[$period['id']] = $idx;
}
$teacher_timetable_by_period = [];
// Initialize the timetable array
foreach ($days_of_week as $day_idx => $day) {
$teacher_timetable_by_period[$day_idx] = array_fill(0, count($non_break_periods), null);
}
foreach ($teacher_schedule_raw as $lesson) {
$day_idx = $lesson['day_of_week'];
if (isset($timeslot_id_to_period_idx[$lesson['timeslot_id']])) {
$period_idx = $timeslot_id_to_period_idx[$lesson['timeslot_id']];
if (isset($teacher_timetable_by_period[$day_idx][$period_idx])) {
// This slot is already filled, potentially by a multi-class elective.
// Create an array if it's not already one.
if (!is_array($teacher_timetable_by_period[$day_idx][$period_idx])) {
$teacher_timetable_by_period[$day_idx][$period_idx] = [$teacher_timetable_by_period[$day_idx][$period_idx]];
}
$teacher_timetable_by_period[$day_idx][$period_idx][] = $lesson;
} else {
$teacher_timetable_by_period[$day_idx][$period_idx] = $lesson;
}
if (!empty($lesson['is_double']) && isset($teacher_timetable_by_period[$day_idx][$period_idx + 1])) {
if (isset($teacher_timetable_by_period[$day_idx][$period_idx + 1])) {
if (!is_array($teacher_timetable_by_period[$day_idx][$period_idx + 1])) {
$teacher_timetable_by_period[$day_idx][$period_idx + 1] = [$teacher_timetable_by_period[$day_idx][$period_idx + 1]];
}
$teacher_timetable_by_period[$day_idx][$period_idx + 1][] = $lesson;
} else {
$teacher_timetable_by_period[$day_idx][$period_idx + 1] = $lesson;
}
}
}
}
// Gemini: Log the final structure
error_log("Final teacher_timetable_by_period structure: " . print_r($teacher_timetable_by_period, true));
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Teacher Timetable - Haki Schedule</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="assets/css/custom.css?v=<?php echo time(); ?>">
<link rel="stylesheet" href="assets/css/print.css?v=<?php echo time(); ?>" media="print">
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
</head>
<body>
<?php require_once 'includes/navbar.php'; ?>
<div class="container mt-4">
<div class="d-flex justify-content-between align-items-center mb-4 no-print">
<h1>Teacher Timetable</h1>
<?php if ($selected_teacher_id): ?>
<div class="d-flex gap-2">
<button id="print-btn" class="btn btn-secondary">Print</button>
<button id="download-btn" class="btn btn-secondary">Download as PDF</button>
</div>
<?php endif; ?>
</div>
<?php if ($role === 'admin'): ?>
<form method="GET" action="" class="mb-4 no-print">
<div class="row">
<div class="col-md-4">
<label for="teacher_id" class="form-label">Select Teacher</label>
<select name="teacher_id" id="teacher_id" class="form-select" onchange="this.form.submit()">
<option value="">-- Select a Teacher --</option>
<?php foreach ($teachers as $teacher): ?>
<option value="<?php echo $teacher['id']; ?>" <?php echo ($selected_teacher_id == $teacher['id']) ? 'selected' : ''; ?> >
<?php echo htmlspecialchars($teacher['name']); ?>
</option>
<?php endforeach; ?>
</select>
</div>
</div>
</form>
<?php endif; ?>
<div id="timetable-container" class="timetable-container">
<?php if ($selected_teacher_id && !empty($teacher_schedule_raw)): ?>
<div class="timetable-wrapper">
<h3 class="mt-4">Timetable for <?php echo htmlspecialchars($selected_teacher_name); ?></h3>
<div class="card">
<div class="card-body">
<table class="table table-bordered text-center">
<thead>
<tr>
<th style="width: 12%;">Time</th>
<?php foreach ($days_of_week as $day): ?>
<th><?php echo $day; ?></th>
<?php endforeach; ?>
</tr>
</thead>
<tbody>
<?php
$period_indices = array_keys($non_break_periods);
foreach ($period_indices as $period_idx) {
$current_timeslot_id = $non_break_periods[$period_idx]['id'];
// Find the full timeslot info, including breaks
$timeslot_info = null;
foreach ($timeslots as $ts) {
if ($ts['id'] === $current_timeslot_id) {
$timeslot_info = $ts;
break;
}
}
// Find if there is a break before this timeslot
$break_html = '';
$last_period_end_time = null;
if ($period_idx > 0) {
$prev_period_id = $non_break_periods[$period_idx - 1]['id'];
foreach($timeslots as $ts) {
if ($ts['id'] === $prev_period_id) {
$last_period_end_time = $ts['end_time'];
break;
}
}
}
foreach ($timeslots as $ts) {
if ($ts['is_break'] && $ts['start_time'] >= $last_period_end_time && $ts['start_time'] < $timeslot_info['start_time']) {
$break_html .= '<tr>';
$break_html .= '<td><strong>' . htmlspecialchars($ts['name']) . '</strong><br><small class="text-muted">' . date("g:i A", strtotime($ts['start_time'])) . ' - ' . date("g:i A", strtotime($ts['end_time'])) . '</small></td>';
$break_html .= '<td colspan="' . count($days_of_week) . '" class="text-center table-secondary"><strong>Break</strong></td>';
$break_html .= '</tr>';
}
}
echo $break_html;
?>
<tr>
<td>
<strong><?php echo htmlspecialchars($timeslot_info['name']); ?></strong><br>
<small class="text-muted"><?php echo date("g:i A", strtotime($timeslot_info['start_time'])); ?> - <?php echo date("g:i A", strtotime($timeslot_info['end_time'])); ?></small>
</td>
<?php foreach ($days_of_week as $day_idx => $day): ?>
<td class="timetable-slot align-middle">
<?php
$lesson = $teacher_timetable_by_period[$day_idx][$period_idx] ?? null;
if ($lesson) {
// If it's an array of lessons (co-teaching), display them all
$lessons_to_display = is_array($lesson) && !isset($lesson['id']) ? $lesson : [$lesson];
foreach ($lessons_to_display as $single_lesson) {
if ($single_lesson) { // Check not null
$display_name = $single_lesson['lesson_display_name'];
// For electives, the teacher should see their specific subject.
if (!empty($single_lesson['is_elective']) && !empty($single_lesson['subject_name'])) {
$display_name = $single_lesson['subject_name'];
}
echo '<div class="lesson p-1 mb-1">';
echo '<strong>' . htmlspecialchars($display_name) . '</strong><br>';
echo '<small>' . htmlspecialchars($single_lesson['class_name']) . '</small>';
echo '</div>';
}
}
}
?>
</td>
<?php endforeach; ?>
</tr>
<?php
}
// Check for any breaks at the very end of the day
$last_timeslot_end_time = end($non_break_periods)['end_time'];
$final_break_html = '';
foreach ($timeslots as $ts) {
if ($ts['is_break'] && $ts['start_time'] >= $last_timeslot_end_time) {
$final_break_html .= '<tr>';
$final_break_html .= '<td><strong>' . htmlspecialchars($ts['name']) . '</strong><br><small class="text-muted">' . date("g:i A", strtotime($ts['start_time'])) . ' - ' . date("g:i A", strtotime($ts['end_time'])) . '</small></td>';
$final_break_html .= '<td colspan="' . count($days_of_week) . '" class="text-center table-secondary"><strong>Break</strong></td>';
$final_break_html .= '</tr>';
}
}
echo $final_break_html;
?>
</tbody>
</table>
</div>
</div>
</div>
<?php elseif ($selected_teacher_id): ?>
<div class="alert alert-info">No lessons scheduled for this teacher.</div>
<?php endif; ?>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function () {
<?php if ($selected_teacher_id): ?>
const { jsPDF } = window.jspdf;
document.getElementById('print-btn').addEventListener('click', function () {
window.print();
});
document.getElementById('download-btn').addEventListener('click', function () {
const element = document.getElementById('timetable-container');
const teacherName = "<?php echo htmlspecialchars($selected_teacher_name, ENT_QUOTES, 'UTF-8'); ?>";
const fileName = `timetable-${teacherName.replace(/\s+/g, '-').toLowerCase()}.pdf`;
html2canvas(element, { scale: 2 }).then(canvas => {
const imgData = canvas.toDataURL('image/png');
const doc = new jsPDF({
orientation: 'l',
unit: 'pt',
format: 'a4'
});
const imgWidth = doc.internal.pageSize.getWidth() - 40;
const imgHeight = canvas.height * imgWidth / canvas.width;
doc.addImage(imgData, 'PNG', 20, 20, imgWidth, imgHeight);
doc.save(fileName);
});
});
<?php endif; ?>
});
</script>
</body>
</html>