package main

import (
	"log"
	"net/http"
	"golang.org/x/net/websocket"
)

func (ch Channel) Write(msg Message) {
	for i, o := range clients {
		if o.active == false {
			nclients := len(clients)
			clients[i] = clients[nclients - 1]
			clients[nclients - 1] = Client{}
			clients = clients[:nclients - 1]
		} else if o == c {
			// Don't send it back to the sending client
		} else {
			o.ws.Write(msg)
		}
	}
}


type Client struct {
	ws *websocket.Conn
	active bool
}

var clients []Client

func (c Client) Chat() {
	websocket.Message.Receive
	for c.active {
		buf := make([]byte, 800)
		n, err := c.ws.Read(buf)
		if err != nil {
			c.active = false
		}
		buf = buf[:n]
	}
}

func ChatServer(ws *websocket.Conn) {
	me := Client{
		ws: ws,
		active: true,
	}
	clients = append(clients, me)
	
	me.Chat()
}

func main() {
	http.Handle("/chat", websocket.Handler(ChatServer))
	http.Handle("/", http.FileServer(http.Dir("static")))
	err := http.ListenAndServe(":8080", nil)
	if err != nil {
		log.Fatal(err.Error())
	}
}