using System;

​

 namespace BMWBuilder

{

     public class Program

    {

        public static void Main(string[] args)

        {

            int iOption = 0;

            do

            {

                Console.Clear();

​

                string sQuery = "";

                DisplayTypes();

​

                Console.Write("Select a starting type: ");

​

                if (CheckValidInput(out iOption) && iOption != -1)

                {

                    switch (iOption)

                    {

                        case 1:

                            BuildCustomOrder("Sedan", ref sQuery);

                            DisplayBuild(ref sQuery);

                            break;

                        case 2:

                            BuildCustomOrder("SUV", ref sQuery);

                            DisplayBuild(ref sQuery);

                            break;

                        case 3:

                            BuildCustomOrder("Truck", ref sQuery);

                            DisplayBuild(ref sQuery);

                            break;

                        default:

                            Console.WriteLine("\nThat is not a valid option,press any key to try again...");

                            break;

                    }

​

                }

​

            } while (iOption != -1);

            Console.WriteLine("\nPress any key to exit...");

        }//Main End

​

        //1. CheckValidInput method

        static bool CheckValidInput(out int _iOption)

        {

            return int.TryParse(Console.ReadLine(),out _iOption);

        }

​

        //2. GetColour method

        static string GetColour()

        {

            Console.WriteLine("What colour sahoukld the BMW be?: ");

            return Console.ReadLine();

        }

​

        //3. AddLeatherSeats method

        public static void AddLeatherSeats(ref string s)

        {

            Console.Write("Would you like to add leather seats to your BMW? (Y/N): ");

            if (Console.ReadLine().ToUpper() == "Y")

            {

                 s += " with added leather seats.";

            }

            else

            {

                s += " without added leather seats.";

            }

        }//AddLeatherSeats end

​

        //4. BuildCustomOrder

        public static void BuildCustomOrder(string _sType, ref string _sQuery)

        {

            string sColour = GetColour();

            Console.WriteLine("You have selected " +  _sType  + " That is " + sColour);

            AddLeatherSeats(ref _sQuery);

            Console.ReadLine();

        }

​

        //5. DisplayBuild

        public static void DisplayBuild(ref string sBuild)

        {

            Console.WriteLine("\n---------------------------THANK YOU-----------------------------");

            Console.WriteLine("We will contact you soon to discuss the price and payment options.\nPress any key to continue....");

        }//DisplayBuild end

​

​

        public static void DisplayTypes()

        {

            Console.WriteLine("----------------------Welcome to the BMW Dealership!----------------------");

            Console.WriteLine("Please provide us with some details regarding the BMW you're interested in.\n");

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

            Console.WriteLine("1) Sedan");

            Console.WriteLine("2) SUV");

            Console.WriteLine("3) Truck");

            Console.WriteLine("-1) Cancel build and close system\n");

        }//DisplayTypes end

    } 

}