Shuffle

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp12
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] numbers = new int[] { 1, 2, 3, 4, 5 };
            bool exit = false;
            int surnameSearch = 0;
            string[] menu = { "1. Вывести массив.", "2. Перемешать массив.", "3. Выйти." };
            Console.CursorVisible = false;
            while (!exit)
            {
                DrawMenu(surnameSearch, menu);
                string selectMenuItems = ChangeDirection(ref surnameSearch, menu);
                Console.Clear();
                switch (selectMenuItems)
                {
                    case "1. Вывести массив.":
                        DrawaArray(numbers);
                        break;
                    case "2. Перемешать массив.":
                        Shuffle(numbers);
                        break;
                    case "3. Выйти.":
                        exit = true;
                        break;
                }
            }
        }

        static void DrawLabels(string text)
        {
            Console.SetCursorPosition(30, 0);
            Console.Write(text);
        }

        static void DrawaArray(int[] array)
        {
            Console.SetCursorPosition(30, 0);
            for (int i = 0; i < array.Length; i++)
                {
                    Console.Write($"{array[i]} ");
                }
        }

        static void Shuffle(int[] array)
        {
            Random rand = new Random();
            for (int i = array.Length - 1; i >= 1; i--)
            {
                int j = rand.Next(i + 1);

                int tmp = array[j];
                array[j] = array[i];
                array[i] = tmp;
            }
        }

        static void DrawMenu(int surnameSearch, string[] items)
        {
            Console.SetCursorPosition(0, 0);
            for (int i = 0; i < items.Length; i++)
            {
                if (i == surnameSearch)
                {
                    Console.BackgroundColor = ConsoleColor.Gray;
                    Console.ForegroundColor = ConsoleColor.Black;
                    Console.WriteLine(items[i]);
                }
                else
                {
                    Console.WriteLine(items[i]);
                }
                Console.ResetColor();
            }
        }

        static string ChangeDirection(ref int surnameSearch, string[] items)
        {
            ConsoleKeyInfo key = Console.ReadKey();
            switch (key.Key)
            {
                case ConsoleKey.UpArrow:
                    if (surnameSearch <= 0)
                    {
                        surnameSearch = items.Length - 1;
                        DrawMenu(surnameSearch, items);
                    }
                    else
                    {
                        surnameSearch--;
                        DrawMenu(surnameSearch, items);
                    }
                    break;
                case ConsoleKey.DownArrow:
                    if (surnameSearch == items.Length - 1)
                    {
                        surnameSearch = 0;
                        DrawMenu(surnameSearch, items);
                    }
                    else
                    {
                        surnameSearch++;
                        DrawMenu(surnameSearch, items);
                    }
                    break;
                case ConsoleKey.Enter:
                    {
                        return items[surnameSearch];
                    }
            }
            return "";
        }
    }
}