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Viewing / Editing File: config.php

<?php
/**
 * Main configuration file
 * Contains site settings and WhatsApp API configuration
 */

// Start session if not already started
if (session_status() == PHP_SESSION_NONE) {
    session_start();
}

// Site configuration
define('SITE_NAME', 'نظام إدارة حضور الطلاب');
define('SITE_URL', 'http://localhost/attendance');

// WhatsApp API Configuration
define('WHATSAPP_API_URL', 'https://api.whatsapp.com/send');
define('WHATSAPP_TOKEN', ''); // Add your WhatsApp API token here

// Include database configuration
require_once 'database.php';

/**
 * Check if user is logged in as admin
 * @return bool true if admin is logged in, false otherwise
 */
function isAdminLoggedIn() {
    return isset($_SESSION['admin_id']) && !empty($_SESSION['admin_id']);
}

/**
 * Check if user is logged in as teacher
 * @return bool true if teacher is logged in, false otherwise
 */
function isTeacherLoggedIn() {
    return isset($_SESSION['teacher_id']) && !empty($_SESSION['teacher_id']);
}

/**
 * Check if user is logged in as parent
 * @return bool true if parent is logged in, false otherwise
 */
function isParentLoggedIn() {
    return isset($_SESSION['parent_logged_in']) && $_SESSION['parent_logged_in'] === true;
}

/**
 * Redirect to login page if not authorized
 * @param string $role Role to check (admin, teacher, parent)
 */
function requireLogin($role = 'admin') {
    switch($role) {
        case 'admin':
            if (!isAdminLoggedIn()) {
                header('Location: admin_login.php');
                exit();
            }
            break;
        case 'teacher':
            if (!isTeacherLoggedIn()) {
                header('Location: teacher_login.php');
                exit();
            }
            break;
        case 'parent':
            if (!isParentLoggedIn()) {
                header('Location: parent_login.php');
                exit();
            }
            break;
    }
}

/**
 * Generate random student code
 * @return string 5-digit random number
 */
function generateStudentCode() {
    return str_pad(rand(10000, 99999), 5, '0', STR_PAD_LEFT);
}

/**
 * Send WhatsApp message using API
 * @param string $phone Phone number
 * @param string $message Message to send
 * @return bool Success status
 */
function sendWhatsAppMessage($phone, $message) {
    if (empty(WHATSAPP_TOKEN)) {
        return false;
    }
    
    // Format phone number (remove any non-numeric characters)
    $phone = preg_replace('/[^0-9]/', '', $phone);
    
    // WhatsApp API call would go here
    // This is a placeholder - you need to implement based on your WhatsApp API provider
    $data = array(
        'phone' => $phone,
        'message' => $message,
        'token' => WHATSAPP_TOKEN
    );
    
    // Example cURL implementation (adjust based on your API provider)
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, WHATSAPP_API_URL);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    
    $result = curl_exec($ch);
    curl_close($ch);
    
    return $result !== false;
}
?>

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