using System.Windows;
using Paca.App;

namespace Paca.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 readonly object _lock = new();
    private static bool _initialized = false;

    public static void Ensure(System.Windows.Threading.Dispatcher dispatcher)
    {
        dispatcher.Invoke(() =>
        {
            lock (_lock)
            {
                if (Application.Current == null)
                {
                    try
                    {
                        new Application { ShutdownMode = ShutdownMode.OnExplicitShutdown };
                    }
                    catch (InvalidOperationException)
                    {
                        // 이미 다른 스레드/테스트에서 생성된 경우
                    }
                }

                if (Application.Current != null && !_initialized)
                {
                    try
                    {
                        global::Paca.App.App.ApplyTheme("dark");
                        if (!Application.Current.Resources.Contains("InverseCountToVisibility"))
                            Application.Current.Resources["InverseCountToVisibility"] = new InverseCountToVisibilityConverter();
                        _initialized = true;
                    }
                    catch { }
                }
            }
        });
    }

    public static void EnsureWindowResources(FrameworkElement element)
    {
        try
        {
            const string asm = "pack://application:,,,/Paca;component";
            var md = element.Resources.MergedDictionaries;
            bool hasDark = md.Any(d => d.Source?.OriginalString?.Contains("Dark.xaml") == true);
            bool hasShared = md.Any(d => d.Source?.OriginalString?.Contains("Shared.xaml") == true);
            if (!hasDark)
            {
                try { md.Add(new ResourceDictionary { Source = new Uri(asm + "/Themes/Dark.xaml", UriKind.Absolute) }); } catch { }
            }
            if (!hasShared)
            {
                try { md.Add(new ResourceDictionary { Source = new Uri(asm + "/Themes/Shared.xaml", UriKind.Absolute) }); } catch { }
            }
        }
        catch { }
    }
}