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// Generates Node gRPC service interface out of Protobuf IDL.

#include <memory>

#include "src/compiler/config.h"
#include "src/compiler/node_generator.h"
#include "src/compiler/node_generator_helpers.h"

using grpc_node_generator::GenerateFile;
using grpc_node_generator::GetJSServiceFilename;

class NodeGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator {
 public:
  NodeGrpcGenerator() {}
  ~NodeGrpcGenerator() {}

  bool Generate(const grpc::protobuf::FileDescriptor *file,
                const grpc::string &parameter,
                grpc::protobuf::compiler::GeneratorContext *context,
                grpc::string *error) const {
    grpc::string code = GenerateFile(file);
    if (code.size() == 0) {
      return true;
    }

    // Get output file name
    grpc::string file_name = GetJSServiceFilename(file->name());

    std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> output(
        context->Open(file_name));
    grpc::protobuf::io::CodedOutputStream coded_out(output.get());
    coded_out.WriteRaw(code.data(), code.size());
    return true;
  }
};

int main(int argc, char *argv[]) {
  NodeGrpcGenerator generator;
  return grpc::protobuf::compiler::PluginMain(argc, argv, &generator);
}