using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace DuckEmulator.GUI
{
    partial class HelpBrowser : Form
    {
        private Dictionary<uint, string> TopicList;
        private Dictionary<uint, string> InfoList;

        internal HelpBrowser()
        {
            InitializeComponent();
            LoadTopics();
            LoadInfo();
        }

        internal void LoadTopics()
        {
            TopicList = new Dictionary<uint, string>();

            var Lines = File.ReadAllLines("help/topics.txt");

            foreach (string Line in Lines)
            {
                TopicList.Add(Convert.ToUInt32(Line.Split(':')[0]), Line.Split(':')[1]);
                Topics.Items.Add(Line.Split(':')[1]);
            }
        }

        internal string GetInfo(uint Id)
        {
            try { return InfoList[Id]; }
            catch { return "Could not load info."; }
        }

        internal uint GetId(string Question)
        {
            foreach (KeyValuePair<uint,string> kvp in TopicList)
            {
                if (kvp.Value.ToLower() == Question.ToLower())
                    return kvp.Key;
            }

            return 0;
        }

        internal void LoadInfo()
        {
            InfoList = new Dictionary<uint, string>();

            var Lines = File.ReadAllLines("help/text.txt");

            foreach (string Line in Lines)
            {
                InfoList.Add(Convert.ToUInt32(Line.Split(':')[0]), Line.Split(':')[1]);
            }
        }

        private void Topics_SelectedIndexChanged(object sender, EventArgs e)
        {
            WriteTitle(Topics.SelectedItem.ToString());

            this.Info.ForeColor = Color.DarkGray;
            this.Info.Text = "\r\n\r\n";

            foreach(string Text in GetInfo(GetId(Topics.SelectedItem.ToString())).Split('#'))
            {
                this.Info.Text += " " + Text + "\r\n";
            }
        }

        private void WriteTitle(string TIT)
        {
            this.Title.Text = TIT;
        }
    }
}