homework_programmingBase

using System;
using System.Collections.Generic;

namespace Homework
{
    class Program
    {
        static void Main()
        {
            List<Item> items = new List<Item>()
            {
                new Item("milk", 2),
                new Item("bread", 1),
                new Item("tomato", 3)
            };

            Basket basket = new Basket(items);
            Customer Peter = new Customer(basket, 100, "Петя");
            Customer Alex = new Customer(basket, 3, "Алеша");
            Queue<Customer> customers = new Queue<Customer>();
            customers.Enqueue(Peter);
            customers.Enqueue(Alex);
            Shop SevenEleven = new Shop(customers);
            SevenEleven.ServeCustomers();
        }
    }

    class Shop
    {
        private Queue<Customer> _customers;

        public Shop(Queue<Customer> customers)
        {
            _customers = customers;
        }

        public void ServeCustomers()
        {
            bool isEnoughtMoney = false;
            int customerBill;
            foreach (Customer customer in _customers)
            {
                while (isEnoughtMoney == false)
                {
                    customerBill = customer.CountTheBill();
                    if (customerBill > customer.Cash)
                    {
                        customer.ClearBasket();
                        Console.WriteLine("Нужно больше золота" + customer.Name);
                    }
                    else
                    {
                        isEnoughtMoney = true;
                    }
                }
                isEnoughtMoney = false;
                Console.WriteLine("Покупка оплачена!" + customer.Name);
            }
        }
    }

    class Customer
    {
        private Basket _basket;
        public string Name { get; private set; }
        public int Cash { get; private set; }

        public Customer(Basket basket, int cash, string name)
        {
            _basket = basket;
            Cash = cash;
            Name = name;
        }

        public int CountTheBill()
        {
            int calculateBill = _basket.CalculateTotalPrice();
            return calculateBill;
        }

        public void ClearBasket()
        {
            _basket.DeleteRandomStaff();
        }
    }

    class Item
    {
        private string _name;
        public int Price { get; private set; }

        public Item(string name, int price)
        {
            _name = name;
            Price = price;
        }
    }

    class Basket
    {
        private List<Item> _items;
        
        public Basket(List<Item> customerItems)
        {
            _items = customerItems;
        }

        public int CalculateTotalPrice()
        {
            int totalPrice = 0;

            foreach (Item item in _items)
            {
                totalPrice += item.Price;
            }
            return totalPrice;
        }

        public void DeleteRandomStaff()
        {
            Random random = new Random();
            _items.RemoveAt(random.Next(0, _items.Count));
        }
    }
}