package main

import (
	"fmt"
	"net"
	"os"
	"os/signal"
	"syscall"
	"time"

	"git.wenlab.co/joe/nnet"
	"git.wenlab.co/joe/nnet/cpn"
)

const (
	SERVER_ADDR = "127.0.0.1:3200"
	WS_PATH     = "/echo"
)

type ServerSessionCb struct {
}

func (self *ServerSessionCb) OnClosed(ses nnet.ISession, reason int32) {
	fmt.Println("client quit:", ses.GetRawConn().RemoteAddr())
}

func (self *ServerSessionCb) OnConnected(ses nnet.ISession) (bool, int32) {
	fmt.Fprintf(os.Stdout, "connected:%v\n", ses.GetRawConn().RemoteAddr())
	return true, 0
}

func (self *ServerSessionCb) OnMessage(ses nnet.ISession, pkt nnet.IPacket) bool {
	p, ok := pkt.(*EchoPacket)
	if !ok {
		return false
	}
	_, _ = fmt.Fprintf(os.Stdout, "received[%v] id<%v>, msg<%v>\n", time.Now().Format("15:04:05"), p.Id, p.Msg)
	_ = ses.AWrite(p, time.Second)
	return true
}

func (self *ServerSessionCb) OnHeartbeat(ses nnet.ISession) bool {
	return true
}

func start_tcp_server() {
	__start_server(func() nnet.IHub {
		listener, err := nnet.Listen(SERVER_ADDR)
		if err != nil {
			panic(err)
		}
		tcpListener, ok := listener.(*net.TCPListener)
		if !ok {
			panic("interface")
		}
		return cpn.NewTcpServer(&nnet.DefHubConfig, &ServerSessionCb{}, &TcpProtocol{}, tcpListener)
	})
}

func start_ws_server() {
	__start_server(func() nnet.IHub {
		return cpn.NewWsServer(&nnet.DefHubConfig, &ServerSessionCb{}, &WsProtocol{}, SERVER_ADDR, WS_PATH, nil)
	})
}

func __start_server(fn func() nnet.IHub) {
	server := fn()
	go func() {
		err := server.Start()
		if err != nil {
			panic(err)
		}
	}()
	fmt.Println("server started.")

	ch := make(chan os.Signal)
	signal.Notify(ch, syscall.SIGINT)

	fmt.Println("received signal:", <-ch)
	server.Stop()
}

func main() {
	param := "tcpserver"
	if len(os.Args) > 1 {
		param = os.Args[1]
	}
	switch param {
	case "tcpserver":
		start_tcp_server()
	case "tcpclient":
		start_tcp_client()
	case "wsserver":
		start_ws_server()
	case "wsclient":
		start_ws_client()
	default:
		fmt.Fprintf(os.Stderr, "usage:%v [tcpserver|tcpclient|wsserver|wsclient]\n", os.Args[0])
	}
}