using System;
using System.Collections.Generic;
using Paca.Core;
using Xunit;

namespace Paca.Tests.Core;

public class MultiTrackMediaMuxerGateTests
{
    [Fact]
    public void Gate377_MultiTrackMediaMuxer_MapsMultipleAudioTracks_Correctly()
    {
        var job = new MuxJobSpecification
        {
            VideoTrack = new TrackSpec("C:\\media\\video.mp4", "copy"),
            AudioTracks = new List<TrackSpec>
            {
                new("C:\\media\\audio_kor.m4a", "copy", Language: "kor", Title: "한국어 더빙", IsDefault: true),
                new("C:\\media\\audio_eng.m4a", "copy", Language: "eng", Title: "English Original", IsDefault: false)
            },
            OutputPath = "C:\\media\\output_multitrack.mkv"
        };

        var cmd = MultiTrackMediaMuxer.BuildMuxCommandLine(job);

        Assert.Contains("-i \"C:\\media\\video.mp4\"", cmd);
        Assert.Contains("-i \"C:\\media\\audio_kor.m4a\"", cmd);
        Assert.Contains("-i \"C:\\media\\audio_eng.m4a\"", cmd);
        Assert.Contains("-map 0:v:0", cmd);
        Assert.Contains("-map 1:a:0", cmd);
        Assert.Contains("-map 2:a:0", cmd);
    }

    [Fact]
    public void Gate378_MultiTrackMediaMuxer_InjectsAudioMetadataTags()
    {
        var job = new MuxJobSpecification
        {
            VideoTrack = new TrackSpec("video.mp4", "copy"),
            AudioTracks = new List<TrackSpec>
            {
                new("audio_kor.m4a", "copy", "kor", "한국어 더빙", true),
                new("audio_eng.m4a", "copy", "eng", "English Original", false)
            },
            OutputPath = "output.mkv"
        };

        var cmd = MultiTrackMediaMuxer.BuildMuxCommandLine(job);

        Assert.Contains("-metadata:s:a:0 language=kor", cmd);
        Assert.Contains("-metadata:s:a:0 title=\"한국어 더빙\"", cmd);
        Assert.Contains("-metadata:s:a:1 language=eng", cmd);
        Assert.Contains("-metadata:s:a:1 title=\"English Original\"", cmd);
    }

    [Fact]
    public void Gate379_MultiTrackMediaMuxer_SetsDefaultDisposition_ForPrimaryTrack()
    {
        var job = new MuxJobSpecification
        {
            VideoTrack = new TrackSpec("video.mp4", "copy"),
            AudioTracks = new List<TrackSpec>
            {
                new("audio_kor.m4a", "copy", "kor", "한국어", true),
                new("audio_eng.m4a", "copy", "eng", "English", false)
            },
            OutputPath = "output.mkv"
        };

        var cmd = MultiTrackMediaMuxer.BuildMuxCommandLine(job);

        Assert.Contains("-disposition:a:0 default", cmd);
    }

    [Fact]
    public void Gate380_MultiTrackMediaMuxer_IncludesSubtitlesAndBuildsFullCommand()
    {
        var job = new MuxJobSpecification
        {
            VideoTrack = new TrackSpec("C:\\in\\video.mp4", "copy"),
            AudioTracks = new List<TrackSpec>
            {
                new("C:\\in\\audio.aac", "copy", "kor", "Main Audio", true)
            },
            SubtitleTracks = new List<TrackSpec>
            {
                new("C:\\in\\subs_kr.srt", "copy", "kor", "한국어 자막", true)
            },
            OutputPath = "C:\\out\\final.mkv"
        };

        var cmd = MultiTrackMediaMuxer.BuildMuxCommandLine(job);

        Assert.Contains("-i \"C:\\in\\subs_kr.srt\"", cmd);
        Assert.Contains("-map 2:s:0", cmd);
        Assert.Contains("-metadata:s:s:0 language=kor", cmd);
        Assert.Contains("-metadata:s:s:0 title=\"한국어 자막\"", cmd);
        Assert.Contains("-c copy", cmd);
        Assert.EndsWith("\"C:\\out\\final.mkv\" -y", cmd);
    }
}