package socket

import (
	"fmt"
	"log"
	"net"
	"strings"
	"tunnel/pkg/server/env"
)

type dialSocket struct {
	proto, addr string
}

func newDialSocket(proto, addr string) (S, error) {
	return &dialSocket{proto: proto, addr: addr}, nil
}

func (s *dialSocket) String() string {
	return fmt.Sprintf("%s/%s", s.proto, s.addr)
}

func (s *dialSocket) Open(e env.Env) (Conn, error) {
	addr := e.Expand(s.addr)

	switch s.proto {
	case "tcp", "udp":
		if !strings.Contains(addr, ":") {
			addr = "localhost:" + addr
		}
	}

	conn, err := net.Dial(s.proto, addr)
	if err != nil {
		return nil, err
	}

	la, ra := conn.LocalAddr(), conn.RemoteAddr()
	desc := fmt.Sprintf("%s/%s->%s", la.Network(), la, ra)
	info := fmt.Sprintf(">%s/%s", ra.Network(), ra)

	log.Println("dial", desc)

	return newConn(conn, desc, info), nil
}

func (s *dialSocket) Close() {
}