$uploadDir = __DIR__ . '/ftpuploads/';
$qrDir = __DIR__ . '/ftpuploads/qr/';
$cutoffTime = time() - (5 * 60); // Calculate timestamp for 5 minutes ago

function deleteOldFiles($dir, $cutoff) {
    $deletedCount = 0;
    if (is_dir($dir)) {
        $files = scandir($dir);
        foreach ($files as $file) {
            if ($file === '.' || $file === '..') {
                continue;
            }
            $filePath = $dir . '/' . $file;
            if (is_file($filePath) && (strtolower(pathinfo($filePath, PATHINFO_EXTENSION)) === 'jpg' || strtolower(pathinfo($filePath, PATHINFO_EXTENSION)) === 'png')) {
                if (filemtime($filePath) < $cutoff) {
                    if (unlink($filePath)) {
                        $deletedCount++;
                        // Optionally log the deleted file:
                        // error_log("Deleted old file: " . $filePath);
                    } else {
                        error_log("Error deleting file: " . $filePath);
                    }
                }
            }
        }
    }
    return $deletedCount;
}

// Call the function to delete old files
$deletedUploads = deleteOldFiles($uploadDir, $cutoffTime);
$deletedQrCodes = deleteOldFiles($qrDir, $cutoffTime);

// Optionally, you can log the number of deleted files
// error_log("Deleted " . $deletedUploads . " old uploads and " . $deletedQrCodes . " old QR codes.");