/// Helper class for URL manipulation
class UrlHelper {
  /// Resolve a potentially relative URL against a base URL
  static String resolveUrl(String baseUrl, String url) {
    // If URL is already absolute, return as is
    if (url.startsWith('http://') || url.startsWith('https://')) {
      return url;
    }

    // Parse base URL
    final baseUri = Uri.parse(baseUrl);

    // If URL starts with /, it's relative to the origin
    if (url.startsWith('/')) {
      return '${baseUri.scheme}://${baseUri.authority}$url';
    }

    // Otherwise, resolve relative to the base path
    final basePath = baseUri.path.endsWith('/')
        ? baseUri.path
        : baseUri.path.substring(0, baseUri.path.lastIndexOf('/') + 1);

    return '${baseUri.scheme}://${baseUri.authority}$basePath$url';
  }

  /// Get the base URL (scheme + authority) from a full URL
  static String getBaseUrl(String url) {
    final uri = Uri.parse(url);
    return '${uri.scheme}://${uri.authority}';
  }
}