using System;

using System.Collections.Generic;

using System.Data;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Xml.Schema;

​

public class Product

{

    private string name;

    private float price;

    private int num;

    private int sold = 0;

    public Product(string name, int num, float price)

    {

        this.name = name;

        this.num = num;

        this.price = price;

    }

​

    public string Name

    {

        get

        {

            return name;

        }

​

        set

        {

            name = value;

        }

    }

​

    public int Num

    {

        get

        {

            return num;

        }

​

        set

        {

            num = value;

        }

    }

    public float Price

    {

        get

        {

            return price;

        }

​

        set

        {

            price = value;

        }

    }

​

    public int Sold

    {

        get

        {

            return sold;

        }

​

        set

        {

            sold = value;

        }

    }

}

​

public class Program

{

    private bool forceQuit = false;

    private int command = 0;

    private List<Product> products = new List<Product>();

    public void Main()

    {

        while (!forceQuit)

            GetCommand();

    }

​

    public void GetCommand()

    {

        switch (command)

        {

            case 1:

                Console.WriteLine(">> Podaj nazwę produktu:");

                string name = Console.ReadLine();

                Console.WriteLine(">> Podaj ilość w opakowaniu:");

                int num = Convert.ToInt32(Console.ReadLine());

                Console.WriteLine(">> Podaj cenę jednostkową:");

                float price = Convert.ToSingle(Console.ReadLine());

                products.Add(new Product(name, num, price));

                command = 0;

                break;

            case 2:

                Console.WriteLine(">> Wybierz produkt:");

                int i = 1;

                products.ForEach(delegate (Product product)

                {

                    Console.WriteLine(i + " " + product.Name);

                    i++;

                }

                );

                int chosen = Convert.ToInt32(Console.ReadLine());

                Console.WriteLine(">> Wprowadź ilość sprzedanych opakowań:");

                int quantity = Convert.ToInt32(Console.ReadLine());

                products[chosen-1].Sold = products[chosen-1].Sold + quantity;

                command = 0;

                break;

            case 3:

                int j = 1;

                products.ForEach(delegate (Product product)

                {

                    Console.WriteLine(j + " " + product.Name + " (cena jednostkowa: " + product.Price + " zł, sprzedanych: " + product.Sold + ")");

                    j++;

                }

                );

                Console.ReadLine();

                command = 0;

                break;

            case 4:

                int k = 1;

                products.ForEach(delegate (Product product)

                {

                    Console.WriteLine(k + " " + product.Name + " Sprzedaż: " + product.Sold + "x " + product.Price + " = " + product.Sold * product.Price);

                    k++;

                }

                );

                Console.ReadLine();

                command = 0;

                break;

            case 5:

                System.Environment.Exit(1);

                break;

            default:

                Console.WriteLine("Hurtownia obuwia");

                Console.WriteLine("");

                Console.WriteLine(">> Wprowadź polecenie");

                Console.WriteLine("1. Wprowadzanie opakowania produktu");

                Console.WriteLine("2. Wprowadzanie sprzedaży");

                Console.WriteLine("3. Lista produktów");

                Console.WriteLine("4. Faktury");

                Console.WriteLine("5. Wyjście");

                command = Convert.ToInt32(Console.ReadLine());

                Console.Clear();

                break;

        }

    }

}