add grpc server

buf.gen.yaml

@@ -0,0 +1,11 @@
+version: v1
+plugins:
+ - plugin: go
+   out: .
+   opt:
+     - paths=source_relative
+ - plugin: go-grpc
+   out: .
+   opt:
+     - paths=source_relative
+

buf.yaml

@@ -0,0 +1,7 @@
+version: v1
+breaking:
+  use:
+    - FILE
+lint:
+  use:
+    - DEFAULT

cmd/proto-learning-client/main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"log"
+	"time"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	proto "pathe.co/zinx/proto/gametake/v1"
+)
+
+var (
+	addr = flag.String("addr", "localhost:50051", "the address to connect to")
+)
+
+func main() {
+	flag.Parse()
+	conn, err := grpc.Dial(*addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
+	if err != nil {
+		log.Fatalf("did not connect: %v", err)
+	}
+	defer conn.Close()
+	c := proto.NewGameTakeLearningClient(conn)
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+	r, err := c.GetHand(ctx, &proto.GametakeRequest{Id: "MyID"})
+	if err != nil {
+		log.Fatalf("could not greet: %v", err)
+	}
+	log.Printf("Greeting: %s", r)
+}

cmd/proto-learning-server/main.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+	"net"
+
+	"google.golang.org/grpc"
+	"pathe.co/zinx/pkg/game"
+	proto "pathe.co/zinx/proto/gametake/v1"
+)
+
+var (
+	port = flag.Int("port", 50051, "The server port")
+)
+
+type server struct {
+	proto.UnimplementedGameTakeLearningServer
+}
+
+func (s *server) GetHand(ctx context.Context, in *proto.GametakeRequest) (*proto.GametakeResponse, error) {
+	log.Printf("Received: %v", in.GetId())
+	game := game.NewGame()
+	cards := []*proto.Card{}
+	for _, c := range game.Cartes[0:5] {
+		card := proto.Card{Type: c.Genre, Color: c.Couleur}
+		cards = append(cards, &card)
+	}
+
+	return &proto.GametakeResponse{Cards: cards}, nil
+}
+
+func main() {
+	flag.Parse()
+	lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *port))
+	if err != nil {
+		log.Fatalf("failed to listen: %v", err)
+	}
+	s := grpc.NewServer()
+	proto.RegisterGameTakeLearningServer(s, &server{})
+	log.Printf("server listening at %v", lis.Addr())
+	if err := s.Serve(lis); err != nil {
+		log.Fatalf("failed to serve: %v", err)
+	}
+}