using System;
using System.IO;
using System.Text;
using System.Threading;
using Jscape.Telnet;

namespace TelnetExample {

	public class TelnetExample {

		public bool connected = false;
		public Telnet myTelnet = null;

		public TelnetExample(string hostname){
			myTelnet = new Telnet(hostname);
			// Subscribe to connection events
			myTelnet.ConnectedEvent += new Telnet.ConnectedEventHandler(OnConnected);
			myTelnet.DisconnectedEvent += new Telnet.DisconnectedEventHandler(OnDisconnected);
			// Subscribe to option events
			myTelnet.DoOptionEvent += new Telnet.DoOptionEventHandler(OnDoOption);
			myTelnet.DontOptionEvent += new Telnet.DontOptionEventHandler(OnDontOption);
			myTelnet.WillOptionEvent += new Telnet.WillOptionEventHandler(OnWillOption);
			myTelnet.WontOptionEvent += new Telnet.WontOptionEventHandler(OnWontOption);
			// Subscribe to data received event
			myTelnet.DataReceivedEvent += new Telnet.DataReceivedEventHandler(OnDataReceived);
			// Connect to telnet server
			myTelnet.Connect();
			this.Connected = true;
			// Begin reading and writing data to telnet server
			TelnetOutputStream output = myTelnet.GetOutputStream();
			string input = "";
			while ((input = Console.ReadLine()) != null) {
				if ((this.Connected) && (input != "exit")) {
					((TelnetOutputStream) output).PrintLn(input);
				} else {
					break;
				}
			}
			// Disconnect from telnet server
			myTelnet.Disconnect();
		}

		public bool Connected {
			get {
				return connected;
			}
			set {
				connected = value;
			}
		}
		public static void Main() {

			Console.Write("Telnet server: ");
			string hostname = "";
			if ((hostname = Console.ReadLine()) != "") {
				TelnetExample telnetexample = new TelnetExample(hostname);
			}
		}


		public void OnConnected(object sender, TelnetConnectedEventArgs e) {
			Console.WriteLine("Connected to {0}:{1}", e.Host, e.Port);
		}
		public void OnDisconnected(object sender, TelnetDisconnectedEventArgs e) {
			this.Connected = false;
			Console.WriteLine("Disconnected.");
		}
		public void OnDoOption(object sender, TelnetDoOptionEventArgs e) {
			myTelnet.SendWontOption(e.Option);
		}
		public void OnDontOption(object sender, TelnetDontOptionEventArgs e) {
			myTelnet.SendDontOption(e.Option);
		}
		public void OnWillOption(object sender, TelnetWillOptionEventArgs e) {
			myTelnet.SendDontOption(e.Option);
		}
		public void OnWontOption(object sender, TelnetWontOptionEventArgs e) {
			myTelnet.SendWontOption(e.Option);
		}
		public void OnDataReceived(object sender, TelnetDataReceivedEventArgs e) {
			Console.Write(Encoding.ASCII.GetString(e.Data));
		}
	}
}