package main

import (
	"fmt"
	"flag"
	"log"
	"net"
	"os"
	
	"google.golang.org/grpc"
	"google.golang.org/grpc/reflection"
	"google.golang.org/grpc/credentials"
	
	"tldemo/services"
)

var (
	port = flag.Int("port", 50051, "The server port")
	crt_file = "certs/server.crt"
	key_file = "certs/server.key"
)

func main() {
	fmt.Println("==== TurboLink Test Server =====")
	
	logFileName := "./log/services.log"
	logFile, err := os.OpenFile(logFileName, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0766)
	if err != nil {
			log.Fatalf("could not load TLS keys: %s", err)
			return
	}
	log.SetOutput(logFile)
	log.SetFlags(log.LstdFlags | log.Lshortfile | log.Ltime)

	flag.Parse()
	lis, err := net.Listen("tcp",":5050")

	if err != nil {
		log.Fatalf("failed to listen: %v", err)
	}
	
	// server-side tls
	// Create the TLS credentials
	creds, err := credentials.NewServerTLSFromFile(crt_file, key_file)
	if err != nil {
		log.Fatalf("could not load TLS keys: %s", err)
	}
	s := grpc.NewServer(grpc.Creds(creds))
	
	//register all server
	services.RegisterGreeterServer(s)
	services.RegisterUserServer(s)
	
	reflection.Register(s)
	log.Printf("server listening at %v", lis.Addr())
	if err := s.Serve(lis); err != nil {
		log.Fatalf("failed to serve: %v", err)
	}	
}