[StartCode]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp23
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Database database = new Database();
            string workMenu = "1";

            while (workMenu == "1")
            {
                database.ShowMenu();
                Console.WriteLine();
                database.Show();
                Console.WriteLine();
                Console.WriteLine("Продолжить работать? ( да -1 ),(нет - любую клавишу) : ");

                workMenu = Console.ReadLine();
            }
        }
    }

    class Player
    {
        private bool _isBan;                  // поля

        public int Level { get; private set; }                   //свойства

        public string Name { get; private set; }

        public Player(int level, string name)         // конструктор
        {
            Level = level;
            Name = name;
        }

        public void Show(int number)
        {
            Console.WriteLine("Номер - " + number + " Уровень - " + Level + " Никнейм - " + Name + " Наличие бана - " + _isBan);
        }

        public void Ban()
        {
            _isBan = true;
        }

        public void UnBan()
        {
            _isBan = false;
        }
    }

    class Database
    {
        private List<Player> _players = new List<Player>();

        public void Show()
        {
            int counter = 1;
            foreach (Player player in _players)
            {
                player.Show(counter++);
            }
        }

        public void ShowMenu()
        {
            Console.WriteLine("         МЕНЮ");
            Console.WriteLine();
            Console.WriteLine("1 - Добавить игрока.\n2 - Удалить игрока.\n3 - Забанить игрока.\n4 - Разбанить игрока.");
            string userCommand = Console.ReadLine();
            Player player = null;

            switch (userCommand)
            {
                case "1":
                    AddPlayer(player);
                    break;
                case "2":
                    DelitePlayer(player);
                    break;
                case "3":
                    BanPlayer(player);
                    break;
                case "4":
                    UnBanPlayer(player);
                    break;
                default:
                    while (int.TryParse(userCommand, out int number) == false)
                    {
                        break;
                    }
                    Console.WriteLine("ОШИБКА");
                    break;
            }
        }

        private void AddPlayer(Player player)
        {
            int temporaryLevel;
            Console.WriteLine("Введите уровень игрока : ");

            while (int.TryParse(Console.ReadLine(), out  temporaryLevel) == false)
            {
                Console.WriteLine("ОШИБКА");
            }

            Console.WriteLine("Введите никнейм игрока : ");
            string temporaryName = Console.ReadLine();
            Console.WriteLine("Игрок в бане ?(Да - 1 ,нет - любую клавишу) : ");
            string temporaryIsBanned = Console.ReadLine();
            Player temporaryPlayer = new Player(temporaryLevel, temporaryName);

            if (temporaryIsBanned == "1")
            {
                temporaryPlayer.Ban();
            }
            _players.Add(temporaryPlayer);
        }

        private void DelitePlayer(Player player)
        {
            Console.WriteLine("Введите номер игрока для удаления :");
            string delitePlayer = Console.ReadLine();

            while (TryGetPlayer(Convert.ToInt32(delitePlayer), out player) == false)
            {
                delitePlayer = Console.ReadLine();
            }
            _players.Remove(player);
        }

        private void BanPlayer(Player player)
        {
            Console.WriteLine("Введите номер игрока для бана :");
            string banNumber = Console.ReadLine();

            while (TryGetPlayer(Convert.ToInt32(banNumber), out player) == false)
            {
                banNumber = Console.ReadLine();
            }
            player.Ban();
        }

        private void UnBanPlayer(Player player)
        {
            Console.WriteLine("Введите номер игрока для разбана :");
            string unBanNumber = Console.ReadLine();

            while (TryGetPlayer(Convert.ToInt32(unBanNumber), out player) == false)
            {
                unBanNumber = Console.ReadLine();
            }
            player.UnBan();
        }

        private bool TryGetPlayer(int playerNumber, out Player player)
        {
            int.TryParse(Convert.ToString(playerNumber), out int number) ;

            if (number > 0 && number <= _players.Count )
            {
                player = _players[number - 1];
                return true;
            }
            else
            {
                player = null;
                return false;
            }
        }
    }
}
[EndCode]