using Telerik.WinControls;

namespace Pilz.UI.Telerik.Theming;

public static class ThemeHelper
{
    public static void ApplyApplicationTheme(ApplicationTheme theme, Func<RadThemeComponentBase> getLightTheme, Func<RadThemeComponentBase> getDarkTheme)
    {
        ApplyApplicationTheme(theme, getLightTheme, getDarkTheme, getDarkTheme);
    }

    public static void ApplyApplicationTheme(ApplicationTheme theme, Func<RadThemeComponentBase> getLightTheme, Func<RadThemeComponentBase> getDarkTheme, Func<RadThemeComponentBase> getGrayTheme)
    {
        ThemeResolutionService.ApplicationThemeName = GetThemeName(theme, getLightTheme, getDarkTheme, getGrayTheme).ThemeName;
    }

    public static RadThemeComponentBase GetThemeName(ApplicationTheme theme, Func<RadThemeComponentBase> getLightTheme, Func<RadThemeComponentBase> getDarkTheme, Func<RadThemeComponentBase> getGrayTheme)
    {
        RadThemeComponentBase? themeToUse;

        if (theme == ApplicationTheme.Light || theme == ApplicationTheme.Auto && WindowsSettings.AppsUseLightTheme)
            themeToUse = getLightTheme();
        else if (theme == ApplicationTheme.Dark || theme == ApplicationTheme.Auto && !WindowsSettings.AppsUseLightTheme)
            themeToUse = getDarkTheme();
        else /*if (CoreSettings.AppTheme == ApplicationTheme.Gray)*/
            themeToUse = getGrayTheme();

        return themeToUse;
    }
}