SAE-2.01/MCTG/ConsoleApp/ConsoleMenu.cs

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


namespace ConsoleApp
{
    public class ConsoleMenu : Manager
    {
        public ConsoleMenu(Manager manager)
        {
            AllRecipes = manager.AllRecipes;
        }

        public Recipe? ResearchOnRecipe()
        {
            StringBuilder sb = new StringBuilder();
            SearcherRecipe searcherRecipe = new SearcherRecipe();
            RecipeCollection result = AllRecipes.ResearchByName(sb.ToString());
            searcherRecipe.UpdateDisplay(sb.ToString(), result);

            ConsoleKeyInfo cki;

            do
            {
                cki = Console.ReadKey(true);

                switch (cki.Key)
                {
                    case ConsoleKey.UpArrow:
                        searcherRecipe.SelectPrevioustLine();
                        break;
                    case ConsoleKey.DownArrow:
                        searcherRecipe.SelectNextLine();
                        break;
                    case ConsoleKey.Backspace:
                        if (sb.Length > 0)
                        {
                            sb.Remove(sb.Length - 1, 1);
                            result = AllRecipes.ResearchByName(sb.ToString());
                        }
                        break;
                    default:
                        sb.Append(cki.KeyChar);
                        result = AllRecipes.ResearchByName(sb.ToString());
                        break;
                }

                searcherRecipe.UpdateDisplay(sb.ToString(), result);

            } while (cki.Key != ConsoleKey.Enter);

            return searcherRecipe.CurrentSelected;
        }
    }
}