using System;

using System.Collections.Generic;

public class Item

{

    public string Name {get;set;}

              public string Description {get;set;}

              public decimal Price {get;set;}

              public bool IsSold {get;set;}

              public bool IsPaymentDone {get;set;}

              public Vendor Vendor {get;set;}

              public int Stock {get;set;}

    public override string ToString()

    {

        return Name + " " + Price + "$";

    }

}

public class Vendor

{

    public string FirstName {get;set;}

              public string LastName {get;set;}

              public decimal Commission {get;set;}

              public decimal PaymentDue {get;set;}

    public override string ToString()

    {

        return FirstName + " " + LastName;

    }

}

public class Store

{

    public string Name{get;set;}

              public string City{get;set;}

              public string ZipCode{get;set;}

              public string Country{get;set;}

              public string Address1{get;set;}

              public string Address2{get;set;}

    public List<Item> Items { get; private set; }

    public List<Vendor> Vendors { get; private set; }

    public Store()

    {

        Items = new List<Item>();

        Vendors = new List<Vendor>();

    }

    public void AddItem(Item item)

    {

        Items.Add(item);

    }

    public void AddVendor(Vendor vendor)

    {

        Vendors.Add(vendor);

    }

}

public class ConsignmentShop

{

    private List<KeyValuePair<Item, int>> ItemsInShoppingCart { get; set; }

    private Store _Store { get; set; }

    public ConsignmentShop()

    {

        ItemsInShoppingCart = new List<KeyValuePair<Item, int>>();

        SetupStore();

    }

    private void SetupStore()

    {

    this._Store = new Store{Name = "Cool Store"};

                             this._Store.AddVendor(new Vendor{FirstName = "Vladimir", LastName = "Gerasimenok", Commission = 0.2m, PaymentDue = 0});

                             this._Store.AddVendor(new Vendor{FirstName = "Raja", LastName = "Mani", Commission = 0.3m, PaymentDue = 0});

                             this._Store.AddItem(new Item{Name = "C# in a Nutshell", Description = "A book from O'Reiley", Price = 50.0m, IsSold = false, IsPaymentDone = false, Vendor = this._Store.Vendors[0], Stock = 10});

                             this._Store.AddItem(new Item{Name = "Apple AirPods", Description = "Headphones from Apple", Price = 250.0m, IsSold = false, IsPaymentDone = false, Vendor = this._Store.Vendors[1], Stock = 5});

                             this._Store.AddItem(new Item{Name = "Samsung Galyx S20+", Description = "Samsung phone", Price = 1200.0m, IsSold = false, IsPaymentDone = false, Vendor = this._Store.Vendors[0], Stock = 3});

                             this._Store.AddItem(new Item{Name = "iMac 2011", Description = "A computer from Apple", Price = 575.0m, IsSold = false, IsPaymentDone = false, Vendor = this._Store.Vendors[1], Stock = 2});

                             this._Store.AddItem(new Item{Name = "AOC AG352UCG", Description = "AOC Ultrawide monitor", Price = 790.0m, IsSold = false, IsPaymentDone = false, Vendor = this._Store.Vendors[0], Stock = 5});  

​

    }

    public void ShowMenu()

    {

        Console.WriteLine("Welcome to " + _Store.Name);

        Console.WriteLine("Items in store: ");

        for(int i = 0; i < _Store.Items.Count; i++)

        {

            Console.WriteLine((i + 1) + ", " + _Store.Items[i]);

        }

        Console.WriteLine("A - Add item to shoppping cart"); 

        Console.WriteLine("L - List items in shoppping cart"); 

        Console.WriteLine("O - Order items in shopping cart"); 

        Console.WriteLine("X - Exit");

        string input = "";

        while(input != "X")

        {

            Console.WriteLine("Enter your choice:");

            input = Console.ReadLine();

            switch(Convert.ToChar(input))

            {

                    case('A'): 

                    Console.WriteLine("Place your order please");

                    string item = Console.ReadLine();

                    Item chosen = _Store.Items[Convert.ToInt32(item.Split(',')[0]) - 1];

                    int amount = Convert.ToInt32(item.Split(',')[1]);

                    if(chosen.Stock >= amount)

                    {

                        ItemsInShoppingCart.Add(new KeyValuePair<Item, int> (chosen, amount));

                    }

                    else

                    {

                        Console.WriteLine("There was not enough stock of the given item");

                    }

                    break;

                    case('L'): 

                    for(int i = 0; i < ItemsInShoppingCart.Count; i++)

                    {

                        Console.WriteLine(ItemsInShoppingCart[i].Key.Name + " " + ItemsInShoppingCart[i].Value + " " + ItemsInShoppingCart[i].Key.Price * ItemsInShoppingCart[i].Value);

                    }

                    break;

                    case('O'):

                    decimal allIncome = 0;

                    decimal[] vendorCommission = new decimal[_Store.Vendors.Count];

                    for(int i = 0; i < ItemsInShoppingCart.Count; i++)

                    {

                        allIncome += ItemsInShoppingCart[i].Key.Price * ItemsInShoppingCart[i].Value;

                        vendorCommission[_Store.Vendors.IndexOf(ItemsInShoppingCart[i].Key.Vendor)] += ItemsInShoppingCart[i].Key.Price * Convert.ToDecimal(ItemsInShoppingCart[i].Value) * ItemsInShoppingCart[i].Key.Vendor.Commission;

                    }

                    for(int i = 0; i < vendorCommission.Length; i++)

                    {

                        Console.WriteLine(_Store.Vendors[i] + " " + vendorCommission[i]);

                        allIncome -= vendorCommission[i];

                    }

                    Console.WriteLine("Store income: " + allIncome);

                    break;

                    case('X'): 

                    break;

            }

        }

    }

}

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        ConsignmentShop mainShop = new ConsignmentShop();

        mainShop.ShowMenu();

    }

}