using System;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace Lab20Client
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            //Console.OutputEncoding = Encoding.GetEncoding(866); ;
            try
            {
                Communicate("localhost", 8888);
            }
            catch (Exception exc)
            {
                Console.WriteLine(exc.ToString());
            }
        }

        private static void Communicate(string hostname, int port)
        {
            IPHostEntry iPHost = Dns.GetHostEntry(hostname);
            IPAddress iPAddress = iPHost.AddressList[0];
            IPEndPoint iPEndPoint = new IPEndPoint(iPAddress, port);

            Socket socket = new Socket(
                iPAddress.AddressFamily,
                SocketType.Stream,
                ProtocolType.Tcp
            );
            socket.Connect(iPEndPoint);

            // Отправка сообщения
            Console.Write("Enter message: ");
            string message = Console.ReadLine();
            Console.WriteLine($"Connecting to port: {iPEndPoint}");
            byte[] data = Encoding.UTF8.GetBytes(message);
            int bytesSent = socket.Send(data);

            // Принятие ответа
            byte[] bytes = new byte[1024];
            int bytesRec = socket.Receive(bytes);
            Console.WriteLine($"Server responded: \"{Encoding.UTF8.GetString(bytes, 0, bytesRec)}\"");

            if (message.IndexOf("<TheEnd>") == -1)
            {
                Communicate(hostname, port);
            }

            socket.Shutdown(SocketShutdown.Both);
            socket.Close();
        }
    }
}