package main

import (
	"flag"
	"fmt"
	"log"
	"net"
	gen "slimming/proto/gen"

	"google.golang.org/grpc"
)

type RPCServer struct {
	gen.UnimplementedFrameServiceServer
	netCard *NetCard
}

var (
	serverPort = flag.Int("port", 50051, "The server port")
	cardIP     = flag.String("card", "", "The card ip")
	othersAddr = flag.String("addr", "", "The other server addr")
)

func newRPCServer(netCard *NetCard) *RPCServer {
	return &RPCServer{netCard: netCard}
}

func (rpc *RPCServer) run() {
	flag.Parse()
	lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *serverPort))
	if err != nil {
		log.Fatalf("failed to listen: %v", err)
	}
	s := grpc.NewServer()
	gen.RegisterFrameServiceServer(s, rpc)
	log.Printf("server listening at %v", lis.Addr())

	if err := s.Serve(lis); err != nil {
		log.Fatalf("failed to serve: %v", err)
	}
}

// SayHello implements helloworld.GreeterServer
func (s *RPCServer) SendFrames(stream gen.FrameService_SendFramesServer) error {
	log.Printf("Start: %v", stream)

	for {
		request, err := stream.Recv()
		if err != nil {
			log.Panic(err)
		}
		log.Printf("request: %v", len(request.Frames))
		s.netCard.FrameChan <- request.GetFrames() // 接受数据 广播到网卡上
	}

	// err := stream.SendAndClose(&gen.Response{Code: 0})
	// if err != nil {
	// 	log.Panic(err)
	// }

	return nil
}