using System.Windows;
using VideoDownloader.App;

namespace VideoDownloader.Tests.Infrastructure;

/// <summary>
/// 테스트 프로세스에는 App.xaml 의 리소스가 없으므로, App 어셈블리의 테마 사전을
/// 테스트 전용 Application 에 로드한다(앱의 App.ApplyTheme 과 동일 순서: 색 → 스타일).
/// </summary>
public static class WpfTestApp
{
    private static bool _initialized;

    public static void Ensure(System.Windows.Threading.Dispatcher dispatcher)
    {
        dispatcher.Invoke(() =>
        {
            if (_initialized) return;
            if (Application.Current == null)
                new Application { ShutdownMode = ShutdownMode.OnExplicitShutdown };
            var md = Application.Current.Resources.MergedDictionaries;
            if (md.Count == 0)
            {
                const string asm = "/VideoDownloader;component";
                md.Add(new ResourceDictionary { Source = new Uri(asm + "/Themes/Dark.xaml", UriKind.Relative) });
                md.Add(new ResourceDictionary { Source = new Uri(asm + "/Themes/Shared.xaml", UriKind.Relative) });
            }
            if (!Application.Current.Resources.Contains("InverseCountToVisibility"))
                Application.Current.Resources["InverseCountToVisibility"] = new InverseCountToVisibilityConverter();
            _initialized = true;
        });
    }
}