using System;
using System.Net.Sockets;
using System.IO;


    class MSN_NotificationServer
    {
        private string strMessage;
        private string strVersion;
        private string strCVR;
        private string strUsr;
        private string strUsr2;
        private string ChallengeString;
        private NetworkStream networkStream;
        private StreamReader streamReader;
        private StreamWriter streamWriter;

        public MSN_NotificationServer(string ns_ip, int ns_port, string strUsername, string strPassword)
        {
            TcpClient msnTcp = new TcpClient();
            try
            {
                msnTcp.Connect(ns_ip, ns_port);

                if (msnTcp.Connected)
                {
                    strMessage = "Connected";
                }
                else
                {
                    strMessage = "Not Connected";
                }
            }
            catch (UriFormatException UFE)
            {
                strMessage = UFE.Message;
            }
            
            networkStream = msnTcp.GetStream();
            streamReader = new StreamReader(networkStream);
            streamWriter = new StreamWriter(networkStream);

            streamWriter.WriteLine("VER 4 MSNP8 CVR0");
            streamWriter.Flush();
            strVersion = streamReader.ReadLine();

            streamWriter.WriteLine("CVR 5 0x0409 win 4.10 i386 MSNMSGR 6.2.0208 MSMSGS " + strUsername);
            streamWriter.Flush();
            strCVR = streamReader.ReadLine();

            streamWriter.WriteLine("USR 6 TWN I " + strUsername);
            streamWriter.Flush();
            strUsr = streamReader.ReadLine();
            string[] split_response = strUsr.Split(' ');
            ChallengeString = split_response[4];

            MSN_GetTicket TkMsn = new MSN_GetTicket(ChallengeString, strUsername, strPassword);

            streamWriter.WriteLine("USR 7 TWN S " + TkMsn.ReturnTicket());
            streamWriter.Flush();
            strUsr2 = streamReader.ReadLine();
        }

        public string CheckConnection()
        {
            return strMessage;
        }

        public string CheckVersion()
        {
            return strVersion;
        }

        public string CheckCVR()
        {
            return strCVR;
        }

        public string CheckUsr()
        {
            return strUsr;
        }

        public string CheckUsr2()
        {
            return strUsr2;
        }

        public string ReturnChallengeString()
        {
            return ChallengeString;
        }

    }