MenuPrinter.cs

using System;
using Climan.Model;

namespace Climan;
internal class RepositoryMenuPrinter : IRepositoryMenuPrinter
{
    public int PrintRepositoryMenu(bool canCancel)
    {
        string[] options = new string[] { "Create a new command", "Update existing commands", "Delete commands" };

        const int startX = 0;
        const int startY = 4;
        const int optionsPerLine = 1;
        const int spacingPerLine = 14;
        int currentSelection = 0;
        ConsoleKey key;
        Console.CursorVisible = false;

        do
        {
            Console.Clear();
            Console.ForegroundColor = ConsoleColor.Magenta;
            Console.WriteLine("CLIMAN is running...");
            Console.ResetColor();
            Console.BackgroundColor = ConsoleColor.Blue;
            Console.Write("INF");
            Console.ResetColor();
            Console.Write(" ");
            Console.ForegroundColor = ConsoleColor.Blue;
            Console.Write("Hit CTRL-C or ESC to quit.");
            Console.ResetColor();

            for (int i = 0; i < options.Length; i++)
            {
                Console.SetCursorPosition(startX + (i % optionsPerLine) * spacingPerLine, startY + i / optionsPerLine);

                if (i == currentSelection) Console.ForegroundColor = ConsoleColor.Red;

                Console.Write($"> {options[i]}");

                Console.ResetColor();
            }

            key = Console.ReadKey(true).Key;

            switch (key)
            {
                case ConsoleKey.LeftArrow:
                    if (currentSelection % optionsPerLine > 0)
                        currentSelection--;
                    break;

                case ConsoleKey.RightArrow:
                    if (currentSelection % optionsPerLine < optionsPerLine - 1)
                        currentSelection++;
                    break;

                case ConsoleKey.UpArrow:
                    if (currentSelection >= optionsPerLine)
                        currentSelection -= optionsPerLine;
                    break;

                case ConsoleKey.DownArrow:
                    if (currentSelection + optionsPerLine < options.Length)
                        currentSelection += optionsPerLine;
                    break;

                case ConsoleKey.Escape:
                    if (canCancel)
                        return -1;
                    break;
            }
        } while (key != ConsoleKey.Enter);

        Console.CursorVisible = true;

        return currentSelection;
    }
}

internal class MainMenuPrinter : IMainMenuPrinter
{
    public int PrintMainMenu(bool canCancel, params string[] options)
    {
        const int startX = 0;
        const int startY = 4;
        const int optionsPerLine = 1;
        const int spacingPerLine = 14;
        int currentSelection = 0;
        ConsoleKey key;
        Console.CursorVisible = false;

        do
        {
            Console.Clear();
            Console.ForegroundColor = ConsoleColor.Magenta;
            Console.WriteLine("CLIMAN is running...");
            Console.ResetColor();
            Console.BackgroundColor = ConsoleColor.Blue;
            Console.Write("INF");
            Console.ResetColor();
            Console.Write(" ");
            Console.ForegroundColor = ConsoleColor.Blue;
            Console.Write("Hit CTRL-C or ESC to quit.");
            Console.ResetColor();

            for (int i = 0; i < options.Length; i++)
            {
                Console.SetCursorPosition(startX + (i % optionsPerLine) * spacingPerLine, startY + i / optionsPerLine);

                if (i == currentSelection) Console.ForegroundColor = ConsoleColor.Red;

                Console.Write($"> {options[i]}");

                Console.ResetColor();
            }

            key = Console.ReadKey(true).Key;

            switch (key)
            {
                case ConsoleKey.LeftArrow:
                    if (currentSelection % optionsPerLine > 0)
                        currentSelection--;
                    break;

                case ConsoleKey.RightArrow:
                    if (currentSelection % optionsPerLine < optionsPerLine - 1)
                        currentSelection++;
                    break;

                case ConsoleKey.UpArrow:
                    if (currentSelection >= optionsPerLine)
                        currentSelection -= optionsPerLine;
                    break;

                case ConsoleKey.DownArrow:
                    if (currentSelection + optionsPerLine < options.Length)
                        currentSelection += optionsPerLine;
                    break;

                case ConsoleKey.Escape:
                    if (canCancel)
                        return -1;
                    break;
            }
        } while (key != ConsoleKey.Enter);

        Console.CursorVisible = true;

        return currentSelection;
    }
}