start method

Future<void> start(int port)

Implementation

Future<void> start(int port) async {
  close();

  // Bind to local loopback
  _server = await HttpServer.bind(InternetAddress.loopbackIPv4, port);

  if (kDebugMode) {
    print('[WebServer] Serving at http://${_server!.address.address}:$port');
    print('[WebServer] Assets directory: $_assetsDir');
  }

  _server!.listen((HttpRequest request) async {
    // Default to /index.html if path == "/"
    final path = request.uri.path == '/' ? '/index.html' : request.uri.path;

    // Build the full asset key by combining your custom directory + requested path
    final assetKey = '$_assetsDir$path';

    try {
      // Load from Flutter asset bundle
      final data = await rootBundle.load(assetKey);
      final bytes = data.buffer.asUint8List();

      // Use mime to guess content type from file path
      final mimeStr = lookupMimeType(assetKey) ?? 'application/octet-stream';
      ContentType contentType;
      try {
        contentType = ContentType.parse(mimeStr);
      } catch (_) {
        contentType = ContentType.binary;
      }

      // Write response
      request.response.statusCode = HttpStatus.ok;
      request.response.headers.contentType = contentType;
      request.response.add(bytes);
    } catch (e) {
      // If not found or error reading => 404
      request.response.statusCode = HttpStatus.notFound;
      request.response.write('404 Not Found');
    } finally {
      await request.response.close();
    }
  });
}