parseProtoServices function

List<ProtoService> parseProtoServices(String content)

Implementation

List<ProtoService> parseProtoServices(String content) {
  final services = <ProtoService>[];
  final serviceStartRegex = RegExp(r'service\s+(\w+)\s*\{');
  final rpcRegex = RegExp(
    r'rpc\s+(\w+)\s*\(\s*(stream\s+)?([\w\.]+)?\s*\)\s*returns\s*\(\s*(stream\s+)?([\w\.]+)?\s*\)\s*(?:;|\{[\s\S]*?\})',
  );

  for (final serviceMatch in serviceStartRegex.allMatches(content)) {
    final serviceName = serviceMatch.group(1)!;
    final bodyStartIndex = serviceMatch.end;

    // Find matching brace manually to handle nested braces
    int braceCount = 1;
    int bodyEndIndex = -1;
    for (int i = bodyStartIndex; i < content.length; i++) {
      if (content[i] == '{') braceCount++;
      if (content[i] == '}') braceCount--;
      if (braceCount == 0) {
        bodyEndIndex = i;
        break;
      }
    }

    if (bodyEndIndex != -1) {
      final serviceBody = content.substring(bodyStartIndex, bodyEndIndex);
      final methods = <ProtoMethod>[];

      for (final rpcMatch in rpcRegex.allMatches(serviceBody)) {
        methods.add(
          ProtoMethod(
            name: rpcMatch.group(1)!,
            isClientStreaming: rpcMatch.group(2) != null,
            requestType: rpcMatch.group(3) ?? 'void',
            isServerStreaming: rpcMatch.group(4) != null,
            responseType: rpcMatch.group(5) ?? 'void',
          ),
        );
      }
      services.add(ProtoService(name: serviceName, methods: methods));
    }
  }
  return services;
}