Task 30

using System;

namespace C_sharp_Light
{
    class Program
    {
        static void Main(string[] args)
        {
            PlayerDataBase playerData = new PlayerDataBase();
            playerData.Work();
        }
    }

class Player
    {
        public string Name { get; private set;  }
        public int Lvl { get; private set; }
        public bool IsBan { get; private set;  }
        public int ID { get; private set; }

        public Player(string name, int id)
        {
            Name = name;
            ID = id;
            IsBan = false;
            Lvl = 0;
        }
        public void Ban()
        {
            IsBan = true;
        }
        public void Unban()
        {
            IsBan = false;
        }
    }
    class PlayerDataBase
    {
        private List<Player> _players = new List<Player>();

        public void Work()
        {
            bool isOpen = true;
            while (isOpen)
            {
                Console.WriteLine("1 - Вывести базу данных \n2 - Добавить игрока \n3 - Удалить игрока \n4 - Забанить игрока \n5 - Разбанить игрока \n0- Выход");
                ConsoleKeyInfo key = Console.ReadKey();
                Console.Clear();
                switch (key.Key)
                {
                    case ConsoleKey.D1:
                        WriteAllDataBase();
                        break;
                    case ConsoleKey.D2:
                        Console.Write("Введите имя игрока: ");
                        AddPlayer(Console.ReadLine());
                        break;
                    case ConsoleKey.D3:
                        Console.Write("Введите id игрока: ");
                        DeletePlayer(Convert.ToInt32(Console.ReadLine()));
                        break;
                    case ConsoleKey.D4:
                        Console.Write("Введите id игрока: ");
                        BanPlayer(Convert.ToInt32(Console.ReadLine()));
                        break;
                    case ConsoleKey.D5:
                        Console.Write("Введите id игрока: ");
                        UnbanPlayer(Convert.ToInt32(Console.ReadLine()));
                        break;
                    case ConsoleKey.D0:
                        isOpen = false;
                        break;
                }
                if (isOpen)
                    Console.ReadKey();
                Console.Clear();
            }
        }
        //
        private void WriteAllDataBase()
        {
            int counter = 0;
            int idPositionX = 5;
            int namePositionX = idPositionX + 7;
            int lvlPositionX = namePositionX + 12;
            int banPositionX = lvlPositionX + 7;
            foreach (Player player in _players)
            {
                Console.ForegroundColor = ConsoleColor.DarkBlue;
                Console.Write($"{counter}:");

                Console.ForegroundColor = ConsoleColor.White;
                Console.CursorLeft = idPositionX;
                Console.Write($"id:{player.ID}");
                Console.CursorLeft = namePositionX;
                Console.Write($"{player.Name}");
                Console.CursorLeft = lvlPositionX;
                Console.Write($"Lvl:{player.Lvl}");

                if(player.IsBan)
                    Console.ForegroundColor = ConsoleColor.Red;
                else
                    Console.ForegroundColor = ConsoleColor.Green;
                Console.CursorLeft = banPositionX;
        Console.Write($"ban: {player.IsBan.ToString()}. \n");

                Console.ForegroundColor = ConsoleColor.White;
                counter++;
            }
        }
        private void AddPlayer(string name)
        {
            _players.Add(new Player(name, GetFreeId()));
            SortDataBaseByID();
        }
        private void DeletePlayer(int id)
        {
            int index = FindIndexPlayerByIdPlayer(id);
            if (index >= 0)
                _players.RemoveAt(index);
            else
                DebugError("Такого ID не существует!");
        }
        private void BanPlayer(int id)
        {
            int index = FindIndexPlayerByIdPlayer(id);
            if (index >= 0)
                _players[index].Ban();
            else
                DebugError("Такого ID не существует!");
        }
        private void UnbanPlayer(int id)
        {
            int index = FindIndexPlayerByIdPlayer(id);
            if (index >= 0)
                _players[index].Unban();
            else
                DebugError("Такого ID не существует!");
        }
        //
        private void DebugError(string massage)
        {
            ConsoleColor colorConsoleBefore = Console.ForegroundColor;
            Console.ForegroundColor = ConsoleColor.Red;
            Console.WriteLine($"\n Ошибка: {massage}");
            Console.ForegroundColor = colorConsoleBefore;
        }
        private int FindIndexPlayerByIdPlayer(int id)
        {
            for (int i = 0; i < _players.Count; i++)
            {
                if (_players[i].ID == id)
                    return i;
            }
            return -1;
        }
        private int GetFreeId()
        {
            SortDataBaseByID();
            if (_players.Count == 0)
                return 0;
            if(_players[0].ID != 0)
                return 0;
            for (int i = 0; i < _players.Count-1; i++)
            {
                if (_players[i].ID + 1 != _players[i + 1].ID)
                    return _players[i].ID + 1;
            }
            return _players[_players.Count - 1].ID + 1;
        }
        private void SortDataBaseByID()
        {
            _players.Sort(delegate (Player x, Player y)
            {
                    if (x.ID > y.ID) return 1;
                    else if (x.ID<y.ID) return -1;
                    return 0;
            });
        }
    }

}