Homework 5-6-1

using System;
using System.Collections.Generic;

namespace ConsoleApp19
{
    class Player
    {
        public int Money { get; set; } = 200;
        public List<Product> Bag { get; private set; }
        public void MakePurchase(Shop shop)
        {
            bool alreadyExist = false;
            Bag = new List<Product>();
            while (true)
            {
                Console.WriteLine($"У вас {Money} золота. Введите номер товара, который хотели бы приобрести.");
                int index = Convert.ToInt32(Console.ReadLine()) - 1;
                if ((Money >= shop.Assortment[index].Price) && (shop.Assortment[index].CountInShop >= 1))
                {
                    Money -= shop.Assortment[index].Price;
                    shop.Assortment[index].CountInShop--;
                    shop.Assortment[index].CountInBag++;
                    if (Bag.Count == 0)
                    {
                        Bag.Add(shop.Assortment[index]);
                    }
                    else
                    {
                        for (int i = 0; i < Bag.Count; i++)
                        {
                            if (shop.Assortment[index].ProductName == Bag[i].ProductName)
                            {
                                alreadyExist = true;
                                break;
                            }
                            else
                            {
                                alreadyExist = false;
                                continue;
                            }
                        }
                        if (!alreadyExist)
                        {
                            Bag.Add(shop.Assortment[index]);
                        }
                    }
                    shop.ShowProduct();
                    Console.WriteLine($"Приобретен товар {shop.Assortment[index].ProductName}.");
                    ShowBag();
                }
                else
                {
                    Console.WriteLine("Покупка невозможна! Недостаточно средств, либо товар закончился.");
                }
            }
        }
        public void ShowBag()
        {
            {
                Console.WriteLine("У вас в сумке следующий товар:");
                for (int i = 0; i < Bag.Count; i++)
                {
                    Console.WriteLine($"{ i + 1}){ Bag[i].ProductName}. {Bag[i].CountInBag} шт.");
                }
                Console.WriteLine();
            }
        }
    }
    class Shop
    {
        public List<Product> Assortment { get;private set; }
        public void MakeAssortment()
        {
            Assortment = new List<Product>();
            Random random = new Random();
            Product butcherSword = new Weapon("Меч палача", 30, 0);
            Product sniperBow = new Weapon("Лук снайпера", 60, 0);
            Product frostRing = new Jewelry("Кольцо мороза", 40, 0);
            Product emeraldNecklace = new Jewelry("Изумрудное ожерелье", 60, 0);
            Product hastePotion = new Potions("Зелье ускорения", 15, 0);
            Product healingPotion = new Potions("Зелье исцеления", 10, 0);
            Assortment.Add(butcherSword);
            Assortment.Add(sniperBow);
            Assortment.Add(frostRing);
            Assortment.Add(emeraldNecklace);
            Assortment.Add(hastePotion);
            Assortment.Add(healingPotion);

            foreach (var product in Assortment)
            {
                product.CountInShop = random.Next(2, 21);
            }
        }

        public void ShowProduct()
        {
            Console.Clear();
            Console.SetCursorPosition(0, 0);
            Console.WriteLine("Сейчас у нас представлен следующий товар:");
            for (int i = 0; i < Assortment.Count; i++)
            {
                Console.WriteLine($"{ i + 1}){ Assortment[i].ProductName} стоимостью {Assortment[i].Price} золотых. В наличии {Assortment[i].CountInShop}");
            }
            Console.SetCursorPosition(0, 10);
        }
    }
    class Product
    {
        public string ProductName { get; private set; }
        public int Price { get; private set; }
        public int CountInShop { get; set; }
        public int CountInBag { get; set; }

        public Product(string name, int price, int count)
        {
            ProductName = name;
            Price = price;
            CountInShop = count;
            CountInBag = 0;
        }
    }
    class Weapon : Product
    {
        public Weapon(string name, int price, int count) : base(name, price, count) { }
    }
    class Jewelry : Product
    {
        public Jewelry(string name, int price, int count) : base(name, price, count) { }
    }
    class Potions : Product
    {
        public Potions(string name, int price, int count) : base(name, price, count) { }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Shop shop = new Shop();
            Player player = new Player();

            shop.MakeAssortment();
            shop.ShowProduct();
            player.MakePurchase(shop);
        }
    }
}