using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp.TelnetSamples
{
    internal class AsyncTelnetConsole
    {
        private static IAsyncTelnetClient _client;

        public AsyncTelnetConsole(IAsyncTelnetClient client)
        {
            _client = client;
        }

        public void Start(string ip, int port = 23)
        {
            try
            {
                _client.MessageCallback += On_Receive;
                _client.ErrorCallback += On_ErrorCallback;
                _client.Connect(ip, port);

                while (true)
                {
                    string command = Console.ReadLine().ToLower();
                    if (command == "quit" || command == "exit")
                        break;
                    else if (command == "disconnect" || command == "disconn")
                        _client.Close();
                    else if (command == "connect" || command == "conn")
                        _client.Connect(ip, port);
                    else
                        _client.SendCommand(command);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"[ERR] {ex.Message}");
            }
        }

        private void On_ErrorCallback(object? sender, Exception e)
        {
            Console.WriteLine(e.Message);
        }

        private void On_Receive(object? sender, string e)
        {
            Console.Write(e);
        }
    }
}