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

using Model;

namespace ConsoleApp
{
    internal class ResearchMenuRecipe
    {
        internal string displayText = "";
        public int CurrentLine
        {
            get => currentLine;
            set
            {
                currentLine = value;
                if (currentLine > maxLines)
                {
                    currentLine = maxLines;
                }
                if (currentLine < 0)
                {
                    currentLine = 0;
                }
                return;
            }
        }
        private int currentLine = 0;
        private int maxLines = 0;
        private Recipe? currentSelected;
        
        public void UpdateDisplay(string researchStr, Recipe[] researchResult)
        {
            maxLines = researchResult.Length - 1;

            StringBuilder sb = new StringBuilder();
            sb.AppendLine("---------------------------------------------------------");
            sb.AppendLine($" Research: {researchStr}");
            sb.AppendLine("---------------------------------------------------------");
            for (int i = 0; i < researchResult.Length; i++)
            {
                if (i == CurrentLine)
                {
                    currentSelected = researchResult[i];
                    sb.Append($">");
                }
                sb.AppendLine($" [ {researchResult[i].Id} ]: {researchResult[i].Title} ");
            }
            Console.Clear();
            Console.WriteLine(sb);
        }

        public int SelectNextLine()
        {
            return ++CurrentLine;
        }

        public int SelectPrevioustLine()
        {
            return --CurrentLine;
        }

        public Recipe? ReturnSelected()
        {
            return currentSelected;
        }
    }
}