Unit_47

using System;
using System.Collections.Generic;

namespace Ijunior
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Aquarist aquarist = new Aquarist();
            aquarist.Work();
        }
    }

    class Aquarist
    {
        private Aquarium _aquarium;

        public Aquarist()
        {
            _aquarium = new Aquarium(CreateDefaultFish(), 10);
        }

        public void Work()
        {
            const string CommandAddFish = "1";
            const string CommandRemoveFish = "2";
            const string CommandExit = "3";

            bool isWork = true;

            while (isWork)
            {
                _aquarium.ShowInfo();

                Console.Write($"\n{CommandAddFish} - добавить рыбу" +
                              $"\n{CommandRemoveFish} - убрать рыбу" +
                              $"\n{CommandExit} - выйти" +
                              $"\nВведите номер или нажмите любую клавишу для обновления: ");

                switch (Console.ReadLine())
                {
                    case CommandAddFish:
                        AddFish();
                        break;

                    case CommandRemoveFish:
                        RemoveFish();
                        break;

                    case CommandExit:
                        isWork = false;
                        break;

                    default:
                        _aquarium.UpdateFish();
                        break;
                }

                Console.ReadLine();
                Console.Clear();
            }
        }

        private List<Fish> CreateDefaultFish()
        {
            List<Fish> fish = new List<Fish>();
            int defaultFishCount = 5;

            while (fish.Count < defaultFishCount)
            {
                fish.Add(CreateFish());
            }

            return fish;
        }

        private void AddFish()
        {
            if (_aquarium.FishCount < _aquarium.Limit)
            {
                Fish fish = CreateFish();
                _aquarium.AddFish(fish);
            }
            else
            {
                Console.WriteLine("Количество рыб не может превышать лимит: " + _aquarium.Limit);
            }
        }

        private Fish CreateFish()
        {
            List<string> fishTypes = new List<string>()
            { "тунец", "минтай", "треска", "горбуша", "скумбрия", "лосось", "угорь", "мойва" };

            string name = fishTypes[Utils.GetRandomNumber(0, fishTypes.Count - 1)];
            int currentAge = Utils.GetRandomNumber(0, 10);
            int maxAge = Utils.GetRandomNumber(10, 15);

            return new Fish(name, currentAge, maxAge);
        }

        private void RemoveFish()
        {
            Console.Write("Введите номер рыбы для удаления: ");

            if (int.TryParse(Console.ReadLine(), out int index))
            {
                if (index > 0 && index <= _aquarium.FishCount)
                    _aquarium.RemoveFish(index - 1);
                else
                    Console.WriteLine("Такого номера нет");
            }
            else
            {
                Console.WriteLine("Некорректный ввод");
            }
        }
    }

    class Aquarium
    {
        private List<Fish> _fish;

        public Aquarium(List<Fish> fish, int limit)
        {
            _fish = fish;
            Limit = limit;
        }

        public int Limit { get; }

        public int FishCount => _fish.Count;

        public void AddFish(Fish fish)
        {
            _fish.Add(fish);
        }

        public void RemoveFish(int index)
        {
            _fish.RemoveAt(index);
        }

        public void ShowInfo()
        {
            Console.WriteLine($"Рыб в аквариуме {_fish.Count} из {Limit}: \n");

            for (int i = 0; i < _fish.Count; i++)
            {
                Console.Write(i + 1 + " ");
                _fish[i].ShowInfo();
            }
        }

        public void UpdateFish()
        {
            for (int i = _fish.Count - 1; i >= 0; i--)
            {
                if (_fish[i].IsDead)
                    _fish.RemoveAt(i);
                else
                    _fish[i].GrowOld();
            }
        }
    }

    class Fish
    {
        private string _name;
        private int _currentAge;
        private int _maxAge;

        public Fish(string name, int currentAge, int maxAge)
        {
            _name = name;
            _currentAge = currentAge;
            _maxAge = maxAge;
        }

        public void ShowInfo()
        {
            Console.WriteLine($"{_name} возраст {_currentAge} из {_maxAge}");
        }

        public void GrowOld()
        {
            _currentAge++;
        }

        public bool IsDead => _currentAge >= _maxAge;
    }

    class Utils
    {
        private static Random s_random = new Random();

        public static int GetRandomNumber(int minValue, int maxValue)
        {
            return s_random.Next(minValue, maxValue);
        }
    }
}