String _computeHandlerPath()

in lib/src/request.dart [361:387]

• 23 lines of code
• 9 McCabe index (conditional complexity)

String _computeHandlerPath(Uri requestedUri, String? handlerPath, Uri? url) {
  if (handlerPath != null &&
      handlerPath != requestedUri.path &&
      !handlerPath.endsWith('/')) {
    handlerPath += '/';
  }

  if (handlerPath != null) {
    if (!requestedUri.path.startsWith(handlerPath)) {
      throw ArgumentError('handlerPath "$handlerPath" must be a prefix of '
          'requestedUri path "${requestedUri.path}"');
    }

    if (!handlerPath.startsWith('/')) {
      throw ArgumentError('handlerPath "$handlerPath" must be root-relative.');
    }

    return handlerPath;
  } else if (url != null) {
    if (url.path.isEmpty) return requestedUri.path;

    var index = requestedUri.path.indexOf(url.path);
    return requestedUri.path.substring(0, index);
  } else {
    return '/';
  }
}