using System;

using System.Linq;

using System.Collections.Generic;

using System.Text;

​

/*The program should ask for the customer’s name

The program should ask for the number once (all lists have 10 items, so the same number is valid for all). It should keep asking until a valid number is given.

For each of starter, main and pudding it should

Show a list of the options

Allow the customer to select which one they don’t want - only accept a choice which is in the list.

Store in a variable the food the customer will be given by moving ‘n’ places up the list of foods

The program should display on the screen a personalised message saying what food has been selected.

Once completed, the program should start again for the next customer*/

public class Program

{

    const int LISTLENGTH = 10;

    static String[] starters = new String[10]

    {

    "Soup", "Salad", "Mushrooms", "Whitebait", "Bruschetta", "Avocado", "Prawns", "Olives", "Bread", "Doughballs"

    }

​

    ;

    static String[] mains = new String[10]

    {

    "Chicken", "Steak", "Pizza", "Risotto", "Pasta", "Salad", "Pie", "Casserole", "Pork", "Lasagne"

    }

​

    ;

    static String[] desserts = new String[10]

    {

    "Fruit", "Ice Cream", "Sorbet", "Crumble", "Cheese", "Rice Pudding", "Tiramisu", "Trifle", "Cheesecake", "Apple Pie"

    };

​

    private static String GetCustomerName()

    {

        Console.WriteLine("Please enter your name: ");

        string name = Console.ReadLine();

        if (name.Length < 3 || name.Length > 12)

        {

            return "";

        }

​

        return name;

    }

​

        private static int GetOffsetNumber(int notAllowed, string name)

    {

        string[] letters = new string[27]

        {

        "0", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

        }

​

        ;

        string letter = name.Substring(0, 1);

        string Letter = letter.ToUpper();

​

        int offset = 0;

​

        for (int i = 0; i < 27; i++)

        {

            if (Letter == letters[i])

            {

                offset = offset + i;

            }

        }

​

        return offset;

    }

        private static int GetOffsetNumber2(int notAllowed, string name)

    {

        string[] letters = new string[27]

        {

        "0", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

        }

​

        ;

        string letter = name.Substring(1, 1);

        string Letter = letter.ToUpper();

​

        int offset = 0;

​

        for (int i = 0; i < 27; i++)

        {

            if (Letter == letters[i])

            {

                offset = offset + i;

​

            }

        }

​

        return offset;

    }

        private static int GetOffsetNumber3(int notAllowed, string name)

    {

        string[] letters = new string[27]

        {

        "0", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

        }

​

        ;

        string letter = name.Substring(2, 1);

        string Letter = letter.ToUpper();

        int offset = 0;

        for (int i = 0; i < 27; i++)

        {

            if (Letter == letters[i])

            {

                offset = (offset + i);

            }

        }

​

    return offset;

    }

​

    private static String GetHatedItemStarter(String[] things)

    {

        while (true)

        {

            string strstarters = string.Join(", ", things);

            Console.WriteLine("Please choose your least favourite starter from this list of starters: ");

            Console.WriteLine(strstarters);

            string hatedStarter = Console.ReadLine();

            int i = 0;

            for (i = 0; i < LISTLENGTH; i++)

            {

                string hatedStarter1 = hatedStarter.ToUpper();

                string item = things[i];

                string Item = item.ToUpper();

                if (hatedStarter1 == Item)

                {

                    return hatedStarter;

                }

            }

​

            return "";

        }

    }

​

    private static String GetChosenItemStarter(int offset, String hatedStarter, String[] things)

    {

        int i = 0;

        int pos = 0;

        string chosenStarter = "";

        for (i = 0; i < LISTLENGTH; i++)

        {

            hatedStarter = hatedStarter.ToUpper();

            string item = things[i];

            String Item = item.ToUpper();

            if (Item == hatedStarter)

            {

                pos = i + offset;

                if (pos > 0)

                {

                    chosenStarter = things[pos % 10];

                }

            }

        }

​

        return chosenStarter;

    }

​

    public static void Main(string[] args)

    {

        while (true)

        {

            String name = GetCustomerName();

            int offset = GetOffsetNumber(10, name);

            Console.WriteLine(offset);

            int offset2 = GetOffsetNumber2(10, name);

            Console.WriteLine(offset2);

            int offset3 = GetOffsetNumber3(10, name);

            Console.WriteLine(offset3);

            String hatedStarter = GetHatedItemStarter(starters);

            String hatedMain = GetHatedItemStarter(mains);

            String hatedDessert = GetHatedItemStarter(desserts);

            String chosenStarter = GetChosenItemStarter(offset, hatedStarter, starters);

            String chosenMain = GetChosenItemStarter(offset2, hatedMain, mains);

            String chosenDessert = GetChosenItemStarter(offset3, hatedDessert, desserts);

            Console.WriteLine(@"Hello {0}, your starter is {1}, your main is {2}, and your desert is {3}.

                              Please enjoy", name, chosenStarter, chosenMain, chosenDessert);

            break;

        }

    }

}