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

namespace Client;

internal class Program
{
    private const int Porta = 1322;

    private const int TimeoutLetturaMs = 5 * 60 * 1000;

    private static void Main(string[] args)
    {
        Console.WriteLine("Hello, Server!");

        try
        {
            using var client = new TcpClient("127.0.0.1", Porta);

            Encoding utf8SenzaBom = new UTF8Encoding(false);

            client.ReceiveTimeout = TimeoutLetturaMs;
            Console.WriteLine("Client connesso alla porta " + Porta);

            using NetworkStream stream = client.GetStream();
            using StreamReader reader = new StreamReader(stream, utf8SenzaBom);
            using StreamWriter writer = new StreamWriter(stream, utf8SenzaBom);

            writer.AutoFlush = true;

            var messaggioDalServer = reader.ReadLine();

            if (messaggioDalServer == null)
                Console.WriteLine("Server morto");
            else
            {
                Console.WriteLine("Server: " + messaggioDalServer);

                while (true)
                {
                    Console.Write("$: ");
                    string? msg = Console.ReadLine();

                    if (msg == null || msg == "exit") break;
                    
                    writer.WriteLine(msg);

                    string? msgServer = reader.ReadLine();
                    Console.WriteLine(msgServer);
                }
            }

        }
        catch (IOException e)
        {
            SocketException? causa = e.InnerException as SocketException;

            if (causa != null && causa.SocketErrorCode == SocketError.TimedOut)
                Console.WriteLine("Time out");
            else
                Console.WriteLine("Connessione terminata dal server: " + e.Message);

            Console.WriteLine(e.Message);
        }
        catch (Exception e)
        {
            Console.WriteLine("Errore: " + e.Message);
        }
        finally
        {
            Console.WriteLine("Premi un tasto per chiudere");
            Console.ReadKey();
        }
    }
}