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

namespace client
{
    public partial class Form1 : MetroFramework.Forms.MetroForm
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void connectBTN_Click(object sender, EventArgs e)
        {
            Thread Connect = new Thread(connectOnServer);
            Connect.Start();
        }
        private void connectOnServer()
        {
            byte[] bytes = new byte[1024];
            IPAddress serverIp = IPAddress.Parse(serverIPTextBox.Text);
            IPEndPoint ipEndPoint = new IPEndPoint(serverIp, 5454);
            Socket senderSocket = new Socket(serverIp.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                senderSocket.Connect(ipEndPoint);
                byte[] msg = Encoding.UTF8.GetBytes("[001] " + metroTextBox1.Text);
                senderSocket.Send(msg);

                int bytesRec = senderSocket.Receive(bytes);
                string receivedData = null;
                receivedData += Encoding.UTF8.GetString(bytes, 0, bytesRec);
                serverAnswer(receivedData, senderSocket);

            }
            catch { }
        }

        private void serverAnswer(string receiveData, Socket senderSocket)
        {
            string serverCode = receiveData.Substring(1, 3);

            switch (serverCode)
            {
                case "001":
                    Action action = () =>
                    {
                        connectStatusLabel.Text = "Status: OK";
                        serverIPTextBox.Enabled = false;
                        metroTextBox1.Enabled = false;
                        connectBTN.Enabled = false;
                    };
                    Invoke(action);
                    break;
            }
            senderSocket.Shutdown(SocketShutdown.Both);
            senderSocket.Close();
        }
    }
}