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

namespace Paca.Tests.Mobile;

/// <summary>
/// 모바일 프로덕션 미디어 플레이어 제스처, 자막, 배속, 스토리지 및 공유 게이트 (Gate 103 ~ Gate 108)
/// </summary>
public class MobileMediaPlaybackGateTests
{
    [Fact]
    public void Gate103_MobilePlayerGestureEngine_Audit()
    {
        var gesture = new MobilePlayerGestureEngine();

        // 1. 수평 스와이프 -> Seek
        var seekResult = gesture.OnHorizontalPan(deltaX: 100, currentPositionSec: 30, durationSec: 300);
        Assert.True(seekResult.NewPositionSec > 30);

        // 2. 좌측 수직 스와이프 -> 밝기 조절
        var brightness = gesture.OnVerticalPan(isLeftScreen: true, deltaY: -50, currentBrightness: 0.5);
        Assert.True(brightness > 0.5);

        // 3. 우측 수직 스와이프 -> 볼륨 조절
        var volume = gesture.OnVerticalPan(isLeftScreen: false, deltaY: -50, currentVolume: 0.5);
        Assert.True(volume > 0.5);

        // 4. 더블 탭 -> 토글
        Assert.True(gesture.OnDoubleTap(isPlaying: false));
        Assert.False(gesture.OnDoubleTap(isPlaying: true));
    }

    [Fact]
    public void Gate104_MobilePlaybackSpeedController_Audit()
    {
        var controller = new MobilePlaybackSpeedController();
        Assert.Equal(1.0, controller.CurrentSpeed);

        controller.SetSpeed(1.5);
        Assert.Equal(1.5, controller.CurrentSpeed);

        controller.SetSpeed(3.0);
        Assert.Equal(3.0, controller.CurrentSpeed);

        // 음높이(Pitch) 보정 활성화
        Assert.True(controller.PitchCorrectionEnabled);
    }

    [Fact]
    public void Gate105_MobileSubtitleRenderer_Audit()
    {
        var renderer = new MobileSubtitleRenderer();
        var vttSample = "WEBVTT\n\n00:00:01.000 --> 00:00:04.000\n안녕하세요, Paca 비디오 다운로더입니다.\n";
        renderer.LoadSubtitles(vttSample);

        Assert.Single(renderer.Cues);
        var activeCue = renderer.GetActiveCue(TimeSpan.FromSeconds(2));
        Assert.NotNull(activeCue);
        Assert.Equal("안녕하세요, Paca 비디오 다운로더입니다.", activeCue.Text);

        // 자막 스타일
        renderer.FontSizeMode = SubtitleFontSize.Large;
        Assert.Equal(SubtitleFontSize.Large, renderer.FontSizeMode);
    }

    [Fact]
    public void Gate106_MobilePipController_Audit()
    {
        var pip = new MobilePipController();
        Assert.False(pip.IsPipActive);
        Assert.True(pip.BackgroundAudioEnabled);

        pip.EnterPipMode();
        Assert.True(pip.IsPipActive);

        pip.ExitPipMode();
        Assert.False(pip.IsPipActive);
    }

    [Fact]
    public void Gate107_MobileStoragePolicy_Audit()
    {
        var policy = new MobileStoragePolicy();
        // 90% 임계값
        Assert.Equal(90.0, policy.WarningThresholdPercent);

        // 95% 사용 시 경고 발생 검증
        var warning = policy.CheckStorageUsage(totalBytes: 100_000_000, usedBytes: 95_000_000);
        Assert.True(warning.IsWarningTriggered);
        Assert.Equal(95.0, warning.UsagePercent);
    }

    [Fact]
    public void Gate108_MobileMediaExporter_Audit()
    {
        var exporter = new MobileMediaExporter();
        var exportResult = exporter.PrepareExport("sample_video.mp4", isAudioOnly: false);
        Assert.Equal("video/mp4", exportResult.MimeType);
        Assert.Contains("Movies", exportResult.DestinationFolder);

        var audioResult = exporter.PrepareExport("sample_audio.mp3", isAudioOnly: true);
        Assert.Equal("audio/mpeg", audioResult.MimeType);
        Assert.Contains("Music", audioResult.DestinationFolder);
    }
}