// at the end. That's what causes "headers already sent" errors.

// ---- Start output buffering (prevents headers-already-sent issues) ----
if (!ob_get_level()) {
    ob_start();
}

// ---- Start session ONLY if not already active ----
if (session_status() === PHP_SESSION_NONE) {
    session_start();
}

// ---- Timezone ----
date_default_timezone_set('UTC');

// ---- Database Credentials ----
define('DB_HOST', 'localhost');
define('DB_USER', 'thaild65_amcor');
define('DB_PASS', 'thaild65_amcor');
define('DB_NAME', 'thaild65_amcor');

// ---- Site URLs ----
define('BASE_URL', 'https://amcor.evisasgovmd.info');
define('ADMIN_URL', BASE_URL . '/admin');
define('ASSETS_URL', BASE_URL . '/assets');
define('UPLOADS_URL', BASE_URL . '/uploads');

// ---- File Paths ----
define('ROOT_PATH', dirname(__DIR__));
define('UPLOAD_PATH', ROOT_PATH . '/uploads');
define('UPLOAD_APPLICATIONS', UPLOAD_PATH . '/applications');
define('UPLOAD_STAGE_DOCS', UPLOAD_PATH . '/stage-documents');
define('UPLOAD_NOTICES', UPLOAD_PATH . '/notices');

// ---- Site Constants ----
define('SITE_NAME', 'AMCOR');
define('SITE_TAGLINE', 'Global Leader in Responsible Packaging');
define('SITE_EMAIL', 'info@amcor.evisasgovmd.info');
define('SITE_PHONE', '+1 (888) 755-5580');

// ---- Security ----
define('SESSION_TIMEOUT', 3600);
define('MAX_UPLOAD_SIZE', 5 * 1024 * 1024);
define('ALLOWED_EXTENSIONS', 'pdf,jpg,jpeg,png,doc,docx');

// ---- Error Reporting ----
define('DEBUG_MODE', true);
if (DEBUG_MODE) {
    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);
    error_reporting(E_ALL);
} else {
    ini_set('display_errors', 0);
    ini_set('display_startup_errors', 0);
    error_reporting(0);
}

// ---- Database Connection (PDO) ----
try {
    $pdo = new PDO(
        "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8mb4",
        DB_USER,
        DB_PASS,
        [
            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
            PDO::ATTR_EMULATE_PREPARES   => false,
            PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8mb4"
        ]
    );
} catch (PDOException $e) {
    if (DEBUG_MODE) {
        die("Database connection failed: " . $e->getMessage());
    } else {
        die("Service temporarily unavailable. Please try again later.");
    }
}

// ⚠️ DO NOT ADD A CLOSING ?> TAG
// Closing tag can introduce hidden whitespace that causes
// "headers already sent" errors when this file is included.