using System;

using System.Collections.Generic;

//using System.Linq;

​

​

namespace Com.Cognizant.Truyum.Model

{

  public class MenuItem

    {

        private long id;

        private string name;

        private  float price;

        private bool active;

        private string dateOfLaunch;

        private  string category;

        private  bool freeDelivery;

        public long Id{get;set;}

        public string Name{get;set;}

        public  float Price{get;set;}

        public bool Active{get;set;}

        public string DateOfLaunch{get;set;}

        public  string Category{get;set;}

        public  bool FreeDelivery{get;set;}

        public MenuItem(){}

      public  MenuItem(long id,string name,float price,bool active,string dateOfLaunch,string category,bool freeDelivery)

      {

         this.id=id;

         this.name=name;

         this.price=price;

         this.active=active;

         this.dateOfLaunch=dateOfLaunch;

         this.category=category;

         this.freeDelivery=freeDelivery;

      }

       public override string ToString()

        {

            return base.ToString();

        }

        public override bool Equals(object obj)

        {

            return base.Equals(obj);

        }

  }

     public static void Main(string[] args)   {

        MenuItemDaoCollection menu=new MenuItemDaoCollection();

         menu.GetMenuItemListAdmin();

         menu.GetMenuItemListCustomer();

        Console.ReadKey();

​

        }

     public class Cart

    {

        private List<MenuItem> menuItemList;

        private double total;

        public List<MenuItem> MenuItemList{get;set;}

        public double Total{get;set;}

​

        public Cart() { }

        public Cart(List<MenuItem> menuItemList, double total)

        {

            MenuItemList = menuItemList;

            Total = total;

        }

        public override string ToString()

        {

            return base.ToString();

        }

        public override bool Equals(object obj)

        {

            return base.Equals(obj);

        }

     }

      public class DateUtility{

      public static DateTime Cstring(string dateOfLaunch)

       {

           DateTime datetime=DateTime.ParseExact(dateOfLaunch,"yyyyMMdd",null);

          string datetime1=datetime.ToString("dd/MM/yyyy");

           return datetime;

       }  

      }

    interface IMenuItemDao

    {

      void MenuItemDaoCollection();

     void GetMenuItemListAdmin(List<MenuItem> menu);

    void GetMenuItemListCustomer(List<MenuItem> menu);

    void ModifyMenuItem(MenuItem menuItem);

        MenuItem GetMenuItem(long menuItemId);

    }   

class MenuItemDaoCollection:IMenuItemDao

    {

          private static List<MenuItem>menuItemList;

        public MenuItemDaoCollection()

        {

            if(menuItemList == null)

            {

                menuItemList = new List<MenuItem>();

          menuItemList .Add(new MenuItem(1,"Sandwich",99.00f,true,"20170315","Main Course",true));

          menuItemList.Add(new MenuItem(2,"Burger",129.00f,true,"20110223","Main Course",false));

       menuItemList .Add(new MenuItem(3,"Pizza",149.00f,true,"20180821","Main Course",false));

        menuItemList.Add(new MenuItem(4,"French Fries",57.00f,true,"20170702","Stars",true));

         menuItemList.Add(new MenuItem(5,"Chocolate Brownie",37.00f,true,"20221102","Deserts",true));

    }

}

​

        public List<MenuItem> GetMenuItemListAdmin()

        {

            return menuItemList;

        }

​

        public List<MenuItem> GetMenuItemListCustomer()

        {

            List<MenuItem> cust = new List<MenuItem>();

            foreach(MenuItem item in menuItemList)

            {

                if(Convert.ToInt32(item.DateOfLaunch) >Convert.ToInt32( DateTime.Now) && item.Active == true)

                {

                    cust.Add(item);

                }

            }

            return cust;

        }

​

        public void ModifyMenuItem(MenuItem menuItem)

        {

            foreach(MenuItem item in menuItemList)

            {

                if (item.Equals(menuItem))

                {

                    menuItemList.Add(item);

                }

            }

        }

​

        public MenuItem GetMenuItem(long menuItemId)

        {

            List<MenuItem> getMenuItem = new List<MenuItem>();

            foreach(MenuItem item in menuItemList)

            {

                if(item.Id == menuItemId)

                {

                    getMenuItem.Add(item); 

                }

            }

            return getMenuItem[0];    

        }

    }

    interface ICartDao

    {

    void AddCartItem(long userId,long menuItemId);

   // void GetAllCartItems(long userId);

 // Cart GetAllCartItems(long userId); 

          void RemoveCartItem(long userId, long productId);

    }

            class CartDaoCollection : ICartDao

    {

        private static Dictionary<long, Cart> userCart;

        public CartDaoCollection()

        {

            if(userCart == null)

            {

                userCart = new Dictionary<long, Cart>();

​

            }

        }

        public void AddCartItem(long userId, long menuItemId)

        {

            MenuItemDaoCollection menuItemDao = new MenuItemDaoCollection();

            MenuItem menuItem =  menuItemDao.GetMenuItem(menuItemId);

​

            if (userCart.ContainsKey(userId))

            {

                userCart[userId].MenuItemList.Add(menuItem);

            }

            else

            {

                List<MenuItem> menuItemList = new List<MenuItem>() { menuItem };

                userCart.Add(userId, new Cart(menuItemList, 0));

            }

        }

​

        public Cart GetAllCartItems(long userId)

        {

            float totalPrice = 0f;

            var menuItemList = userCart[userId];

            if (menuItemList.MenuItemList.Count.Equals(0))

            {

                throw new CartEmptyException();

            }

            else

            { 

                foreach(var item in menuItemList.MenuItemList)

                {

                    totalPrice += item.Price;

                }

            }

            Cart cart = new Cart(menuItemList.MenuItemList, totalPrice);

            return cart;

        }

​

        public void RemoveCartItem(long userId, long productId)

        {

            List<MenuItem> menuItem = userCart[userId].MenuItemList;

            foreach(MenuItem item in menuItem)

            {

                if (item.Id.Equals(productId))

                {

                    userCart[userId].MenuItemList.Remove(item);

                    break;

                }

            }

        }

    }

     class CartEmptyException : Exception

    {

        private static readonly string DefaultMessage = "Users Cart is Empty";

​

        public CartEmptyException() : base(DefaultMessage) { }

        public CartEmptyException(string message) : base(message)

        {

​

        }

    }

    }

​

​

​

​