ДЗ: Супермаркет

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        Supermarket supermarket = new Supermarket();
        supermarket.Run();
    }
}

public static class UserUtils
{
    private static Random s_random = new Random();

    public static int GenerateRandomNumber(int minRandom, int maxRandom)
    {
        return s_random.Next(minRandom, maxRandom + 1);
    }

    public static int GenerateRandomNumber(int maxRandom)
    {
        return s_random.Next(maxRandom);
    }
}

class Supermarket
{
    private int _money;
    private List<Product> _products = new List<Product>();
    private Queue<Client> _clientsQueue = new Queue<Client>();

    public Supermarket()
    {
        _products.Add(new Product("Хлеб", 50));
        _products.Add(new Product("Молоко", 80));
        _products.Add(new Product("Сыр", 200));
        _products.Add(new Product("Яблоко", 30));
        _products.Add(new Product("Шоколад", 120));
    }


    public void Run()
    {
        bool isRun = true;

        Console.WriteLine("=== Супермаркет открыт ===");

        FillQueue();

        while (isRun)
        {
            if (_clientsQueue.Count == 0)
            {
                Console.WriteLine("Очередь пуста!");
                isRun = false;
            }
            else
            {
                ServeNextClient();
            }

            Console.ReadKey();
        }

        Console.WriteLine($"Выручка за день: {_money} рублей.");
        Console.WriteLine("=== Супермаркет закрыт ===");
        Console.ReadKey();
    }

    private void FillQueue()
    {
        int maxClients = 10;
        int clients = UserUtils.GenerateRandomNumber(maxClients);

        for (int i = 0; i < clients; i++)
        {
            _clientsQueue.Enqueue(CreateRandomClient());
        }
    }

    private void ServeNextClient()
    {
        Client client = _clientsQueue.Dequeue();

        int totalPrice = client.GetTotalPriceCart();

        Console.WriteLine($"\nОбслуживаем клиента. (деньги: {client.Money})");

        client.ShowCart();

        Console.WriteLine($"Сумма корзины: {totalPrice}");

        while (totalPrice > client.Money)
        {
            Console.WriteLine($"У покупателя не хватает денег, убираем случайный продукт.");

            client.RemoveRandomProductOnCart();
            totalPrice = client.GetTotalPriceCart();

            Console.WriteLine($"Сумма корзины: {totalPrice}");
        }

        if (totalPrice <= client.Money && totalPrice > 0)
        {
            IncreaseMoney(totalPrice);
            client.BayProducts();

            Console.WriteLine($"Оплатил {totalPrice} руб. Остаток: {client.Money}");
        }
        else
        {
            Console.WriteLine("Ничего не купил.");
        }
    }

    private void IncreaseMoney(int money)
    {
        _money += money;
    }

    private Client CreateRandomClient()
    {
        int minProductsCount = 1;
        int maxProductsCount = 10;
        int minMoney = 100;
        int maxMoney = 500;

        int money = UserUtils.GenerateRandomNumber(minMoney, maxMoney);

        Client client = new Client(money);

        int productsCount = UserUtils.GenerateRandomNumber(minProductsCount, maxProductsCount);

        for (int i = 0; i < productsCount; i++)
        {
            Product randomProduct = _products[UserUtils.GenerateRandomNumber(_products.Count)];
            client.AddProductInCart(randomProduct);
        }

        return client;
    }
}

class Product
{
    public Product(string name, int price)
    {
        Name = name;
        Price = price;
    }

    public string Name { get; private set; }
    public int Price { get; private set; }
}

class Client
{
    private List<Product> _cart = new List<Product>();
    private List<Product> _bag = new List<Product>();

    public Client(int money)
    {
        Money = money;
    }

    public int Money { get; private set; }

    public void AddProductInCart(Product product)
    {
        _cart.Add(product);
    }

    public int GetTotalPriceCart()
    {
        int totalPrice = _cart.Sum(price => price.Price);
        return totalPrice;
    }

    public void ShowCart()
    {
        foreach (Product product in _cart)
        {
            Console.Write(product.Name + ", ");
        }
    }

    public void RemoveRandomProductOnCart()
    {
        _cart.RemoveAt(UserUtils.GenerateRandomNumber(_cart.Count));
    }

    public void BayProducts()
    {
        Money -= GetTotalPriceCart();
        MoveFromCartToBag();
        _cart.Clear();
    }

    private void MoveFromCartToBag()
    {
        _bag.AddRange(_cart);
    }
}