Homework43

JohnJuly

May 6th, 2025 (edited)

341

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using System;
using System.Collections.Generic;
namespace Homework43_
{
internal class Program
{
static void Main(string[] args)
{
Shop shop = new Shop();
shop.IsWork();
}
}
class Product
{
public Product(string title, int price)
{
Title = title;
Price = price;
}
public string Title { get; private set; }
public int Price { get; private set; }
public void ShowInfo()
{
Console.WriteLine($"{Title}: {Price} рублей");
}
}
class Person
{
public Person(string name, int money)
{
Name = name;
Money = money;
}
public string Name { get; private set; }
public int Money { get; protected set; }
protected void WithdrawMoney(int amount)
{
if (Money >= amount)
{
Money -= amount;
}
else
{
Console.WriteLine("Недостаточно средств!");
}
}
public void ShowMoney()
{
Console.WriteLine($"{Name} имеет {Money} рублей.");
}
}
class Seller : Person
{
private List<Product> _products = new List<Product>();
public Seller(string name, int money) : base(name, money)
{
_products.Add(new Product("Яблоко", 10));
_products.Add(new Product("Хлеб", 20));
_products.Add(new Product("Мороженое", 7));
_products.Add(new Product("Колбаса", 15));
}
public void ShowProducts()
{
if (_products.Count == 0)
{
Console.WriteLine("У продавца нет товаров.");
return;
}
Console.WriteLine("Товары в продаже:");
foreach (Product product in _products)
{
product.ShowInfo();
}
}
public Product SellProduct(string productName)
{
if (HasProduct(productName) == false)
{
Console.WriteLine($"Продукт {productName} не найден у продавца.");
return null;
}
Product product = GetProduct(productName);
return product;
}
public void FinalizeSell(Product product)
{
if (product != null)
{
_products.Remove(product);
}
}
public void AddMoney(int amount)
{
Money += amount;
}
private bool HasProduct(string productName)
{
foreach (Product product in _products)
{
if (product.Title == productName)
{
return true;
}
}
return false;
}
private Product GetProduct(string productName)
{
foreach (Product product in _products)
{
if (product.Title == productName)
{
return product;
}
}
return null;
}
}
class Buyer : Person
{
private List<Product> _purchasedProducts = new List<Product>();
public Buyer(string name, int money) : base(name, money) { }
public void ShowPurchasedProducts()
{
if (_purchasedProducts.Count == 0)
{
Console.WriteLine($"{Name} ничего не купил.");
return;
}
Console.WriteLine($"{Name} купил следующие товары:");
foreach (Product product in _purchasedProducts)
{
product.ShowInfo();
}
}
public void BuyProduct(Product product)
{
_purchasedProducts.Add(product);
}
public bool CanPurchase(int price)
{
return Money >= price;
}
public void RemoveMoney(int amount)
{
WithdrawMoney(amount);
}
}
class Shop
{
private Seller _seller;
private Buyer _buyer;
public Shop()
{
_seller = new Seller("Продавец", 100);
_buyer = new Buyer("Покупатель", 50);
}
public void IsWork()
{
const string CommandShowProducts = "show";
const string CommandBuyProduct = "buy";
const string CommandShowPurchased = "purchased";
const string CommandExitProgram = "exit";
bool isWork = true;
while (isWork)
{
Console.WriteLine("Вы в продуктовом магазине, выберите действие:");
Console.WriteLine($"Чтобы купить товар введите {CommandBuyProduct}");
Console.WriteLine($"Чтобы показать купленные товары введите {CommandShowPurchased}");
Console.WriteLine($"Чтобы показать товары в продаже, введите {CommandShowProducts}");
Console.WriteLine($"Чтобы выйти введите {CommandExitProgram}");
_buyer.ShowMoney();
_seller.ShowMoney();
Console.Write("Ваш выбор: ");
string userInput = Console.ReadLine();
switch (userInput)
{
case CommandBuyProduct:
HandleBuyProduct();
break;
case CommandShowProducts:
_seller.ShowProducts();
break;
case CommandShowPurchased:
_buyer.ShowPurchasedProducts();
break;
case CommandExitProgram:
isWork = ExitProgram();
break;
default:
Console.WriteLine("Неверная команда!");
break;
}
Console.WriteLine("Нажмите любую клавишу для продолжения...");
Console.ReadKey();
Console.Clear();
}
}
private bool ExitProgram()
{
Console.WriteLine("Вы покинули магазин!");
return false;
}
private void HandleBuyProduct()
{
_seller.ShowProducts();
Console.Write("Введите название товара, который хотите купить: ");
string productName = Console.ReadLine();
BuyProduct(productName, _buyer);
}
private void BuyProduct(string productName, Buyer buyer)
{
Product product = _seller.SellProduct(productName);
if (product != null)
{
if (buyer.CanPurchase(product.Price))
{
buyer.RemoveMoney(product.Price);
_seller.AddMoney(product.Price);
buyer.BuyProduct(product);
_seller.FinalizeSell(product);
Console.WriteLine($"Покупатель купил продукт {product.Title}.");
}
else
{
Console.WriteLine($"У покупателя недостаточно средств для покупки {product.Title}.");
}
}
else
{
Console.WriteLine($"Товар {productName} не найден в магазине.");
}
}
}
}

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