using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Telerik.WinControls;

namespace PJ64Savestater
{
    internal static class VisualThemeHelper
    {
        private const string THEMENAME_FLUENT = "Fluent";
        private const string THEMENAME_FLUENTDARK = "FluentDark";

        public static void SetVisualTheme()
        {
            RadThemeComponentBase? setTheme = null;

            var curVers = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", false);
            if (Convert.ToString(curVers?.GetValue("ProductName", "-"))?.StartsWith("Windows 1") ?? false)
            {
                var keyPersonalize = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize", false);
                int useapptheme = Convert.ToInt32(keyPersonalize?.GetValue("AppsUseLightTheme", 1));

                switch (useapptheme)
                {
                    case 0:
                        setTheme = new Telerik.WinControls.Themes.FluentDarkTheme();
                        break;
                    case 1:
                        setTheme = new Telerik.WinControls.Themes.FluentTheme();
                        break;
                }
            }

            if (setTheme is null)
                setTheme = new Telerik.WinControls.Themes.FluentTheme();

            // Set theme
            ThemeResolutionService.ApplicationThemeName = setTheme.ThemeName;
        }
    }
}