using System.IO;
using Paca.Core;
using Paca.Core.Platform;
using Paca.Tests.Infrastructure;
using Xunit;

namespace Paca.Tests.App;

public class MediaToolsMenuWiringGateTests
{
    private static string AppProjectDir => Directory.Exists(Path.Combine(SourceTree.Root, "src", "Paca.App"))
        ? Path.Combine(SourceTree.Root, "src", "Paca.App")
        : Path.Combine(SourceTree.Root, "Paca.App");

    [Fact]
    public void Gate_Core_Six_MediaEngines_Build_Filters_Accurately()
    {
        // 1. AudioVocalStemExtractor
        var karaokeFilter = AudioVocalStemExtractor.BuildFfmpegStemFilter(AudioStemMode.VocalRemovalKaraoke);
        Assert.Contains("pan=stereo", karaokeFilter);

        // 2. VideoAspectAutoCropper
        var cropFilter = VideoAspectAutoCropper.BuildReframingFilterArgs(ReframingMode.CenterCrop, 1080, 1920);
        Assert.Contains("crop=", cropFilter);
        Assert.Contains("1080:1920", cropFilter);

        // 3. SubtitleBurnInEngine
        var burnInCmd = SubtitleBurnInEngine.BuildBurnInCommandLine("in.mp4", "sub.srt", "out.mp4");
        Assert.Contains("subtitles=", burnInCmd);

        // 4. VideoTonemapEnhancer
        var toneFilter = VideoTonemapEnhancer.BuildHdrToSdrFilter(TonemapAlgorithm.Mobius);
        Assert.Contains("tonemap=", toneFilter);

        // 5. VideoSpriteSheetGenerator
        var spriteConfig = new SpriteSheetConfig(5, 5, 160, 90, 5);
        var spriteCmd = VideoSpriteSheetGenerator.BuildFfmpegSpriteCommandLine("in.mp4", "sprite.jpg", spriteConfig);
        Assert.Contains("tile=5x5", spriteCmd);

        // 6. VideoIntroOutroTrimmer
        var window = VideoIntroOutroTrimmer.CalculateTrimWindow(60.0, 5.0, 10.0);
        var trimArgs = VideoIntroOutroTrimmer.BuildLosslessTrimCommandLine("in.mp4", "out.mp4", window.StartSec, window.DurationSec);
        Assert.Contains("-ss 5.00", trimArgs);
        Assert.Contains("-t 45.00", trimArgs);
    }

    [Fact]
    public void Gate_MainWindow_Xaml_And_Usecases_Contain_MediaToolsWiring()
    {
        var xamlPath = Path.Combine(AppProjectDir, "MainWindow.xaml");
        var usecasesPath = Path.Combine(AppProjectDir, "MainWindow.Usecases.cs");

        Assert.True(File.Exists(xamlPath), $"MainWindow.xaml not found at {xamlPath}");
        Assert.True(File.Exists(usecasesPath), $"MainWindow.Usecases.cs not found at {usecasesPath}");

        var xaml = File.ReadAllText(xamlPath);
        var usecases = File.ReadAllText(usecasesPath);

        // XAML에 6대 미디어 도구 컨텍스트 메뉴 또는 헤더 항목 존재 검증
        Assert.True(xaml.Contains("MediaTools") || xaml.Contains("미디어 도구") || xaml.Contains("MediaToolsMenu"),
            "MainWindow.xaml must declare Media Tools context menu or action entry");

        // Usecases에 미디어 도구 핸들러 배선 검증
        Assert.True(usecases.Contains("ExecuteMediaTool") || usecases.Contains("AudioVocalStemExtractor") || usecases.Contains("HandleMediaToolAction"),
            "MainWindow.Usecases.cs must implement media tools handler");
    }
}