package sircd

import (
	"fmt"
	"net"
	"os"
)

type sircd struct {
    Running bool
	netName  string
	ircPort  uint16
	httpPort uint16
	ircListener net.Listener
    ircClients []*clientIRCConnection
}

type clientIRCConnection struct {
	conn net.Conn
}

const (
	CONN_HOST = "localhost"
	CONN_PORT = "6667"
	CONN_TYPE = "tcp"
)

func NewSircd() *sircd {
	s := new(sircd)
    s.Running = true
	return s
}

func (s *sircd) startServer() {
    var err error
	s.ircListener, err = net.Listen(CONN_TYPE, CONN_HOST+":"+CONN_PORT)
    if err != nil {
		fmt.Println("Error listening:", err.Error())
		os.Exit(1)
    }
    defer s.ircListener.Close()
	fmt.Println("Listening on " + CONN_HOST + ":" + CONN_PORT)
    fmt.Printf("%T\n",s.ircListener)

    for {
		// Listen for an incoming connection.
		conn, err := s.ircListener.Accept()
		if err != nil {
			fmt.Println("Error accepting: ", err.Error())
			os.Exit(1)
		}
		// Handle connections in a new goroutine.
		go handleRequest(conn)
	}


}

func (s *sircd) Start() {
    go func() {
        s.startServer()
    }()
}

// Handles incoming requests.
func handleRequest(conn net.Conn) {
	// Make a buffer to hold incoming data.
	buf := make([]byte, 1024)
	// Read the incoming connection into the buffer.
	byteLen, err := conn.Read(buf)
	if err != nil {
		fmt.Println("Error reading:", err.Error())
	}
	// Send a response back to person contacting us.
	conn.Write([]byte("Message received."))
    fmt.Println("Received message (%i bytes): %s", byteLen, buf)
	// Close the connection when you're done with it.
	conn.Close()
}