using System;

using System.Diagnostics;

using System.Text;

using System.Text.RegularExpressions;

using System.Collections;

using System.Collections.Generic;       

using System.IO;

using System.Linq;

​

public class Program

{

    public static void Main()

    {       

          string SizeName = "";

        double SizeCost = 0;

        string ToppingName = "";

        double ToppingCost = 0;

        double TotalCost =0;

        double Tax = 0;

        double TotalWithTax = 0;

​

        //Print a greeting message.

        Console.WriteLine("Welcome to the Central Pizza Parlor!");

​

        //Ask if the customer would like to order a pizza.

        Console.WriteLine("Would you like to order a pizza today? Enter y for Yes or n for No.");

        string Order = Console.ReadLine();

​

        //Start the order if answer is Yes, if not, then exit the program.

        if (Order == "y")

        {

            //Continue with order.

            Console.WriteLine("Great! Let's get started, please pick the size of your pizza:");

            Console.WriteLine("1 - Small  $5.00");

            Console.WriteLine("2 - Medium $7.00");

            Console.WriteLine("3 - Large  $9.00");

​

            //Get pizza size for order.

            Console.WriteLine("Please enter the number for the pizza size you would like.");

            string sizeAsAString = Console.ReadLine();

            int size = Convert.ToInt32(sizeAsAString);

​

​

            //Use If Else statement to set the variable value for SizeCost.

            if (size == 1)

            {

                SizeCost = 5.0;

                SizeName = ("Small");

            }

            else if (size == 2)

            {

                SizeCost = 7.0;

                SizeName = ("Medium");

            }

            else if (size == 3)

            {

                SizeCost = 9.0;

                SizeName = ("Large");

            }

​

            //Have Customer select toppings.

            Console.WriteLine("Please select which topping you would like on your pizza.");

            ;

            Console.WriteLine("1 - Pepperoni     $2.00");

            Console.WriteLine("2 - Ham           $2.00");

            Console.WriteLine("3 - Onions        $1.00");

            Console.WriteLine("4 - Mushrooms     $1.00");

            Console.WriteLine("5 - Green Peppers $1.00");

​

            Console.WriteLine("Please enter the number for the corresponding topping you would like.");

            string toppingAsAString = Console.ReadLine();

            int topping = Convert.ToInt32(toppingAsAString);

​

​

            //Use If Else statement to set the variable value for ToppingCost.

            if (topping == 1) 

            {

                ToppingCost = 2.0;

                ToppingName = ("Pepperoni");

            }

            else if (topping == 2)

            {

                ToppingCost = 2.0;

                ToppingName = ("Ham");

            }

            else if (topping == 3)

            {

                ToppingCost = 1.0;

                ToppingName = ("Onions");

            }

            else if (topping == 4)

            {

                ToppingCost = 1.0;

                ToppingName = ("Mushrooms");

            }

            else if (topping == 5)

            {

                ToppingCost = 1.0;

                ToppingName = "Green Peppers";

            }

             TotalCost = (SizeCost + ToppingCost);

            Tax = (TotalCost*0.085);

            TotalWithTax = (TotalCost + Tax);

            //Display order details.

            Console.WriteLine("Here are the details for your order.");

            Console.WriteLine("Thank you for your business!");

            Console.WriteLine("You can pick up your pizza in 25 minutes!");

​

            //Show current time of order.

            DateTime now = DateTime.Now;

            Console.WriteLine("Time Ordered: "+now+" ");

​

            //Show Current time of order with additional 25 minutes for pickup.

            DateTime pickup = DateTime.Now.AddMinutes(25);

            Console.WriteLine("Pick Up At: "+pickup+" ");

​

            //Output Pizza Size.

            Console.WriteLine("Size: " +SizeName+ "  ");

​

            //OutPut Topping name.

            Console.WriteLine("Topping: " +ToppingName+ " ");

​

            Console.WriteLine("---------------");

​

            //Output total price of size and topping chosen.

            Console.WriteLine("Pizza Price: $ "+TotalCost+" ");

​

            //Output tax amount.

            Console.WriteLine("Tax: $" +Tax+ " ");

​

            //Output total price with tax.

            Console.WriteLine("Total Price: $" +TotalWithTax+ "  ");

​

​

        }

        else 

        {

            //Exit the program because the customer does not want to order a pizza.

            Console.WriteLine("Alright, have a great day!");

        }

​

        Console.ReadLine();

​

​

    }

}

​