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Viewing / Editing File: teachers.php

<?php
/**
 * Teachers Management Page
 * This page allows admin to add, edit, and delete teacher accounts
 */

require_once '../config/config.php';
requireLogin('admin');

$database = new Database();
$conn = $database->getConnection();

$message = '';
$message_type = '';

// Handle form submissions
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (isset($_POST['action'])) {
        switch ($_POST['action']) {
            case 'add':
                $name = trim($_POST['name']);
                $phone = trim($_POST['phone']);
                $password = $_POST['password'];
                
                if (!empty($name) && !empty($phone) && !empty($password)) {
                    // Check if phone already exists
                    $check_query = "SELECT COUNT(*) as count FROM teachers WHERE phone = :phone";
                    $check_stmt = $conn->prepare($check_query);
                    $check_stmt->bindParam(':phone', $phone);
                    $check_stmt->execute();
                    
                    if ($check_stmt->fetch(PDO::FETCH_ASSOC)['count'] > 0) {
                        $message = 'رقم الهاتف مسجل مسبقاً';
                        $message_type = 'danger';
                    } else {
                        $hashed_password = password_hash($password, PASSWORD_DEFAULT);
                        
                        $query = "INSERT INTO teachers (name, phone, password) VALUES (:name, :phone, :password)";
                        $stmt = $conn->prepare($query);
                        $stmt->bindParam(':name', $name);
                        $stmt->bindParam(':phone', $phone);
                        $stmt->bindParam(':password', $hashed_password);
                        
                        if ($stmt->execute()) {
                            $message = 'تم إضافة المعلم بنجاح';
                            $message_type = 'success';
                        } else {
                            $message = 'حدث خطأ أثناء إضافة المعلم';
                            $message_type = 'danger';
                        }
                    }
                } else {
                    $message = 'يرجى إدخال جميع البيانات المطلوبة';
                    $message_type = 'danger';
                }
                break;
                
            case 'edit':
                $id = $_POST['id'];
                $name = trim($_POST['name']);
                $phone = trim($_POST['phone']);
                $password = $_POST['password'];
                
                if (!empty($name) && !empty($phone) && !empty($id)) {
                    // Check if phone already exists for other teachers
                    $check_query = "SELECT COUNT(*) as count FROM teachers WHERE phone = :phone AND id != :id";
                    $check_stmt = $conn->prepare($check_query);
                    $check_stmt->bindParam(':phone', $phone);
                    $check_stmt->bindParam(':id', $id);
                    $check_stmt->execute();
                    
                    if ($check_stmt->fetch(PDO::FETCH_ASSOC)['count'] > 0) {
                        $message = 'رقم الهاتف مسجل لمعلم آخر';
                        $message_type = 'danger';
                    } else {
                        if (!empty($password)) {
                            $hashed_password = password_hash($password, PASSWORD_DEFAULT);
                            $query = "UPDATE teachers SET name = :name, phone = :phone, password = :password WHERE id = :id";
                            $stmt = $conn->prepare($query);
                            $stmt->bindParam(':password', $hashed_password);
                        } else {
                            $query = "UPDATE teachers SET name = :name, phone = :phone WHERE id = :id";
                            $stmt = $conn->prepare($query);
                        }
                        
                        $stmt->bindParam(':name', $name);
                        $stmt->bindParam(':phone', $phone);
                        $stmt->bindParam(':id', $id);
                        
                        if ($stmt->execute()) {
                            $message = 'تم تحديث بيانات المعلم بنجاح';
                            $message_type = 'success';
                        } else {
                            $message = 'حدث خطأ أثناء تحديث بيانات المعلم';
                            $message_type = 'danger';
                        }
                    }
                } else {
                    $message = 'يرجى إدخال جميع البيانات المطلوبة';
                    $message_type = 'danger';
                }
                break;
                
            case 'delete':
                $id = $_POST['id'];
                
                // Check if teacher has groups
                $check_query = "SELECT COUNT(*) as count FROM groups WHERE teacher_id = :id";
                $check_stmt = $conn->prepare($check_query);
                $check_stmt->bindParam(':id', $id);
                $check_stmt->execute();
                $count = $check_stmt->fetch(PDO::FETCH_ASSOC)['count'];
                
                if ($count > 0) {
                    $message = 'لا يمكن حذف المعلم لأنه يدرس مجموعات';
                    $message_type = 'danger';
                } else {
                    $query = "DELETE FROM teachers WHERE id = :id";
                    $stmt = $conn->prepare($query);
                    $stmt->bindParam(':id', $id);
                    
                    if ($stmt->execute()) {
                        $message = 'تم حذف المعلم بنجاح';
                        $message_type = 'success';
                    } else {
                        $message = 'حدث خطأ أثناء حذف المعلم';
                        $message_type = 'danger';
                    }
                }
                break;
        }
    }
}

// Get all teachers with their groups count
$query = "SELECT t.*, COUNT(g.id) as groups_count 
          FROM teachers t 
          LEFT JOIN groups g ON t.id = g.teacher_id 
          GROUP BY t.id 
          ORDER BY t.created_at DESC";
$stmt = $conn->query($query);
$teachers = $stmt->fetchAll(PDO::FETCH_ASSOC);

$page_title = 'إدارة المعلمين';
include '../includes/header.php';
?>

<div class="container-fluid">
    <div class="row">
        
        <div class="col-lg-3 col-md-4 sidebar p-0">
            <div class="d-flex flex-column h-100">
                <div class="p-3 text-white">
                    <h4 class="mb-0">
                        <i class="fas fa-user-shield me-2"></i>
                        لوحة المدير
                    </h4>
                    <small>مرحباً <?php echo $_SESSION['admin_username']; ?></small>
                </div>
                
                <nav class="nav nav-pills flex-column p-3">
                    <a class="nav-link" href="dashboard.php">
                        <i class="fas fa-tachometer-alt me-2"></i>الرئيسية
                    </a>
                    <a class="nav-link" href="stages.php">
                        <i class="fas fa-layer-group me-2"></i>المراحل الدراسية
                    </a>
                    <a class="nav-link" href="grades.php">
                        <i class="fas fa-graduation-cap me-2"></i>الصفوف الدراسية
                    </a>
                    <a class="nav-link" href="subjects.php">
                        <i class="fas fa-book me-2"></i>المواد الدراسية
                    </a>
                    <a class="nav-link active" href="teachers.php">
                        <i class="fas fa-chalkboard-teacher me-2"></i>إدارة المعلمين
                    </a>
                    <a class="nav-link" href="whatsapp_setup.php">
                        <i class="fab fa-whatsapp me-2"></i>إعداد واتساب
                    </a>
                    <div class="mt-auto">
                        <a class="nav-link text-light" href="../logout.php">
                            <i class="fas fa-sign-out-alt me-2"></i>تسجيل الخروج
                        </a>
                    </div>
                </nav>
            </div>
        </div>
        
        
        <div class="col-lg-9 col-md-8 main-content p-4">
            <div class="d-flex justify-content-between align-items-center mb-4">
                <h2>إدارة المعلمين</h2>
                <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addTeacherModal">
                    <i class="fas fa-plus me-2"></i>إضافة معلم جديد
                </button>
            </div>
            
            
            <?php if (!empty($message)): ?>
                <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show" role="alert">
                    <i class="fas fa-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-2"></i>
                    <?php echo $message; ?>
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                </div>
            <?php endif; ?>
            
            
            <div class="card">
                <div class="card-header">
                    <h5 class="mb-0">قائمة المعلمين</h5>
                </div>
                <div class="card-body">
                    <div class="table-responsive">
                        <table class="table table-striped">
                            <thead>
                                <tr>
                                    <th>الرقم</th>
                                    <th>اسم المعلم</th>
                                    <th>رقم الهاتف</th>
                                    <th>عدد المجموعات</th>
                                    <th>تاريخ التسجيل</th>
                                    <th>الإجراءات</th>
                                </tr>
                            </thead>
                            <tbody>
                                <?php foreach ($teachers as $index => $teacher): ?>
                                <tr>
                                    <td><?php echo $index + 1; ?></td>
                                    <td>
                                        <strong><?php echo htmlspecialchars($teacher['name']); ?></strong>
                                    </td>
                                    <td>
                                        <span class="badge bg-secondary"><?php echo htmlspecialchars($teacher['phone']); ?></span>
                                    </td>
                                    <td>
                                        <span class="badge bg-info"><?php echo $teacher['groups_count']; ?> مجموعة</span>
                                    </td>
                                    <td><?php echo date('Y/m/d', strtotime($teacher['created_at'])); ?></td>
                                    <td>
                                        <button class="btn btn-sm btn-warning me-1" onclick="editTeacher(<?php echo $teacher['id']; ?>, '<?php echo htmlspecialchars($teacher['name']); ?>', '<?php echo htmlspecialchars($teacher['phone']); ?>')">
                                            <i class="fas fa-edit"></i>
                                        </button>
                                        <button class="btn btn-sm btn-danger" onclick="deleteTeacher(<?php echo $teacher['id']; ?>)">
                                            <i class="fas fa-trash"></i>
                                        </button>
                                    </td>
                                </tr>
                                <?php endforeach; ?>
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<div class="modal fade" id="addTeacherModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">إضافة معلم جديد</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" action="">
                <div class="modal-body">
                    <input type="hidden" name="action" value="add">
                    <div class="mb-3">
                        <label for="teacherName" class="form-label">اسم المعلم</label>
                        <input type="text" class="form-control" id="teacherName" name="name" required 
                               placeholder="مثال: أحمد محمد">
                    </div>
                    <div class="mb-3">
                        <label for="teacherPhone" class="form-label">رقم الهاتف</label>
                        <input type="tel" class="form-control" id="teacherPhone" name="phone" required 
                               placeholder="مثال: 01234567890">
                    </div>
                    <div class="mb-3">
                        <label for="teacherPassword" class="form-label">كلمة المرور</label>
                        <input type="password" class="form-control" id="teacherPassword" name="password" required 
                               placeholder="كلمة مرور قوية">
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">إلغاء</button>
                    <button type="submit" class="btn btn-primary">
                        <i class="fas fa-save me-2"></i>حفظ
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<div class="modal fade" id="editTeacherModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">تعديل بيانات المعلم</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" action="">
                <div class="modal-body">
                    <input type="hidden" id="editTeacherId" name="id">
                    <input type="hidden" name="action" value="edit">
                    <div class="mb-3">
                        <label for="editTeacherName" class="form-label">اسم المعلم</label>
                        <input type="text" class="form-control" id="editTeacherName" name="name" required>
                    </div>
                    <div class="mb-3">
                        <label for="editTeacherPhone" class="form-label">رقم الهاتف</label>
                        <input type="tel" class="form-control" id="editTeacherPhone" name="phone" required>
                    </div>
                    <div class="mb-3">
                        <label for="editTeacherPassword" class="form-label">كلمة المرور الجديدة</label>
                        <input type="password" class="form-control" id="editTeacherPassword" name="password" 
                               placeholder="اتركها فارغة إذا لم تريد تغييرها">
                        <div class="form-text">اتركها فارغة إذا لم تريد تغيير كلمة المرور</div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">إلغاء</button>
                    <button type="submit" class="btn btn-warning">
                        <i class="fas fa-save me-2"></i>حفظ التغييرات
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<div class="modal fade" id="deleteTeacherModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">حذف المعلم</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" action="">
                <div class="modal-body">
                    <input type="hidden" id="deleteTeacherId" name="id">
                    <input type="hidden" name="action" value="delete">
                    <p>هل أنت متأكد من حذف هذا المعلم؟</p>
                    <p class="text-danger">سيتم حذف جميع المجموعات والطلاب المرتبطين به.</p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">إلغاء</button>
                    <button type="submit" class="btn btn-danger">
                        <i class="fas fa-trash me-2"></i>حذف
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

function deleteTeacher(id) {
    $('#deleteTeacherId').val(id);
    $('#deleteTeacherModal').modal('show');
}
</script>

<?php include '../includes/footer.php'; ?>

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