using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MonClient
{
    public partial class FormConnexion : Form
    {

        public Socket ClientSocket=null;
        public long sequence = 0;

        public FormConnexion()
        {
            InitializeComponent();
        }
        public String GetAdr()
        {
            try
            {
                //IPAddress ip = IPAddress.Parse("192.168.1.2");
                //IPHostEntry iphostentry = Dns.GetHostByAddress(ip);
                IPHostEntry iphostentry = Dns.GetHostByName("localhost");
                String IPStr = "";
                foreach (IPAddress ipadress in iphostentry.AddressList)
                {
                    IPStr = ipadress.ToString();
                    return IPStr;
                }
            }
            catch (SocketException E)
            {
                MessageBox.Show(E.Message);
            }
            return "";
        }

        

        private void btnConnexion_Click(object sender, EventArgs e)
        {
            string s = "",dest ="";
            if (txtPseudo.Text == "") MessageBox.Show("Veuillez entrer votre pseudo!!!");
            else
            {
                s = txtPseudo.Text.Trim();
                if (s.Length < 15)
                {
                    char pad = Convert.ToChar(" ");
                    s = s.PadRight(15, pad);
                }
                else if (s.Length > 15)
                {
                    MessageBox.Show("Le pseudo doit etre de 15 caractères maximum");
                    return;
                }
                char pad1 = Convert.ToChar(" ");
                dest = dest.PadRight(15, pad1);
              
                sequence = 0;
                //MessageBox.Show("GetAdr : "+GetAdr());
                IPAddress ip = IPAddress.Parse(GetAdr());

                IPEndPoint ipEnd = new IPEndPoint(ip, 9000);
                ClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                try
                {
                    ClientSocket.Connect(ipEnd);
                    if (ClientSocket.Connected)
                    {
                        SendMsg(GetSequence() + s + dest + "Liste des persos Connectees");
                    }


                }
                catch (SocketException E)
                {
                    MessageBox.Show("Connection" + E.Message);
                }

                this.Hide();
                FormConversation fc = new FormConversation();
                fc.pseudo = s;
                fc.cSocket = ClientSocket;
                fc.sequence = sequence;
                fc.Show();
            }
            
        }
        
        void SendMsg(string message)
        {
            byte[] msg = System.Text.Encoding.UTF8.GetBytes(message);
            int DtSent = ClientSocket.Send(msg, msg.Length, SocketFlags.None);
            if (DtSent == 0)
            {
                MessageBox.Show("Aucune donnée n'a été envoyée");
            }
        }
        string GetSequence()
        {
            sequence++;
            string msgSeq = Convert.ToString(sequence);
            char pad = Convert.ToChar("0");
            msgSeq = msgSeq.PadLeft(6, pad);
            return msgSeq;
        }
        private void FormConnexion_Load(object sender, EventArgs e)
        {
            
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }
        

    }
}