package io.vertx.example.grpc.conversation;


import io.vertx.core.AbstractVerticle;
import io.vertx.core.streams.ReadStream;
import io.vertx.core.streams.WriteStream;
import io.vertx.example.grpc.Messages;
import io.vertx.example.grpc.VertxConversationalServiceGrpc;
import io.vertx.example.util.Runner;
import io.vertx.grpc.server.GrpcServer;
import io.vertx.grpc.server.GrpcServiceBridge;

/*
 * @author <a href="mailto:plopes@redhat.com">Paulo Lopes</a>
 */
public class ServerWithStub extends AbstractVerticle {

  // Convenience method so you can run it in your IDE
  public static void main(String[] args) {
    Runner.runExample(ServerWithStub.class);
  }

  @Override
  public void start() {

    // The rpc service
    VertxConversationalServiceGrpc.ConversationalServiceVertxImplBase service = new VertxConversationalServiceGrpc.ConversationalServiceVertxImplBase() {
      @Override
      public void fullDuplexCall(ReadStream<Messages.StreamingOutputCallRequest> request, WriteStream<Messages.StreamingOutputCallResponse> response) {
        request
          .handler(req -> {
            System.out.println("Server: received request");
            vertx.setTimer(500L, t -> {
              response.write(Messages.StreamingOutputCallResponse.newBuilder().build());
            });
          });
      }
    };

    // Create the server
    GrpcServer rpcServer = GrpcServer.server(vertx);
    GrpcServiceBridge
      .bridge(service)
      .bind(rpcServer);

    // start the server
    vertx.createHttpServer().requestHandler(rpcServer).listen(8080)
      .onFailure(cause -> {
        cause.printStackTrace();
      });
  }
}