prepare("
SELECT l.*, c.name_en, c.name_ar, c.teacher_id
FROM course_live_lessons l
JOIN courses c ON l.course_id = c.id
WHERE l.id = ?
");
$stmt->execute([$lesson_id]);
$lesson = $stmt->fetch(PDO::FETCH_ASSOC);
if (!$lesson) {
die("Lesson not found.");
}
// Check role
$is_teacher = false;
$is_student = false;
// Mock student and teacher IDs for the prototype based on current session
// In reality, this would be based on logged-in user session
$current_teacher_id = 1; // Used in teacher.php
$current_student_id = 1; // Assuming we use 1 for student preview too
if (isset($_GET['as']) && $_GET['as'] === 'teacher') {
if ($lesson['teacher_id'] == $current_teacher_id) {
$is_teacher = true;
}
} else {
// Basic check if student is in course
$is_student = true;
}
if (!$is_teacher && !$is_student) {
die("Unauthorized access.");
}
// Ensure lesson status logic
if ($is_teacher && isset($_GET['start'])) {
if ($lesson['status'] === 'scheduled') {
$db->prepare("UPDATE course_live_lessons SET status = 'live' WHERE id = ?")->execute([$lesson_id]);
$lesson['status'] = 'live';
}
}
if ($is_teacher && isset($_GET['end'])) {
if ($lesson['status'] === 'live') {
$db->prepare("UPDATE course_live_lessons SET status = 'ended' WHERE id = ?")->execute([$lesson_id]);
$lesson['status'] = 'ended';
}
}
$room_name = $lesson['room_name'];
$user_display_name = $is_teacher ? 'Teacher' : 'Student';
$has_meet = !empty($lesson['meet_url']);
render_head(
t('Live Lesson: ', 'درس مباشر: ') . t($lesson['title'], $lesson['title']),
t('Join the live streaming lesson.', 'انضم إلى بث الدرس المباشر.')
);
// We won't render normal nav here to maximize screen space for the lesson, or we render a simplified one
?>