using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.IO;

namespace BuzzGUI.Common
{
	public static class ApplicationExtensions
	{
		public static void LoadWPFTheme(this Application app)
		{
			try
			{
				app.Resources.MergedDictionaries.Clear();

				var t = (string)Microsoft.Win32.Registry.GetValue("HKEY_CURRENT_USER\\Software\\Jeskola\\Buzz\\Settings", "WPFTheme", "");

				Uri uri = null;
				string path = null;

				if (t == "Aero")
					uri = new Uri("PresentationFramework.Aero;V3.0.0.0;31bf3856ad364e35;component\\themes/aero.normalcolor.xaml", UriKind.Relative);
				else if (t == "Aero Lite")
					uri = new Uri("PresentationFramework.AeroLite;V3.0.0.0;31bf3856ad364e35;component\\themes/aerolite.normalcolor.xaml", UriKind.Relative);
				else if (t == "Classic")
					uri = new Uri("PresentationFramework.Classic;V3.0.0.0;31bf3856ad364e35;component\\themes/classic.xaml", UriKind.Relative);
				else if (t == "Luna")
					uri = new Uri("PresentationFramework.Luna;V3.0.0.0;31bf3856ad364e35;component\\themes/luna.normalcolor.xaml", UriKind.Relative);
				else if (t == "Luna Olive Green")
					uri = new Uri("PresentationFramework.Luna;V3.0.0.0;31bf3856ad364e35;component\\themes/luna.homestead.xaml", UriKind.Relative);
				else if (t == "Luna Silver")
					uri = new Uri("PresentationFramework.Luna;V3.0.0.0;31bf3856ad364e35;component\\themes/luna.metallic.xaml", UriKind.Relative);
				else if (t == "Royale")
					uri = new Uri("PresentationFramework.Royale;V3.0.0.0;31bf3856ad364e35;component\\themes/royale.normalcolor.xaml", UriKind.Relative);
				else if (t.Length > 0)
					path = Path.Combine(Global.BuzzPath, "Themes/Default/WPFThemes/" + t.Replace(" ", "") + ".xaml");

				if (uri != null)
				{
					var rd = Application.LoadComponent(uri) as ResourceDictionary;
					if (rd != null) app.Resources.MergedDictionaries.Add(rd);
				}
				else if (path != null)
				{
					var rd = XamlReaderEx.LoadHack(path) as ResourceDictionary;
					app.Resources.MergedDictionaries.Add(rd);
				}
			}
			catch (Exception e)
			{
				MessageBox.Show(e.Message);
			}

		}
	}
}