Basic Media Segments (#341)

* Basic Media Segment

* add Condition based on env SOURCE_BUILD

---------

Co-authored-by: rlauu <46294892+rlauu@users.noreply.github.com>
Co-authored-by: Kilian von Pflugk <github@jumoog.io>

ConfusedPolarBear.Plugin.IntroSkipper/PluginServiceRegistrator.cs

@@ -1,3 +1,4 @@
+using ConfusedPolarBear.Plugin.IntroSkipper.Providers;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Plugins;
 using Microsoft.Extensions.DependencyInjection;
@@ -15,6 +16,7 @@ namespace ConfusedPolarBear.Plugin.IntroSkipper
             serviceCollection.AddHostedService<AutoSkip>();
             serviceCollection.AddHostedService<AutoSkipCredits>();
             serviceCollection.AddHostedService<Entrypoint>();
+            serviceCollection.AddSingleton<IMediaSegmentProvider, SegmentProvider>();
         }
     }
 }

ConfusedPolarBear.Plugin.IntroSkipper/Providers/SegmentProvider.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.TV;
+using MediaBrowser.Model;
+using MediaBrowser.Model.MediaSegments;
+
+namespace ConfusedPolarBear.Plugin.IntroSkipper.Providers
+{
+    /// <summary>
+    /// Introskipper media segment provider.
+    /// </summary>
+    public class SegmentProvider : IMediaSegmentProvider
+    {
+        private readonly int _remainingSecondsOfIntro;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SegmentProvider"/> class.
+        /// </summary>
+        public SegmentProvider()
+        {
+            _remainingSecondsOfIntro = Plugin.Instance?.Configuration.RemainingSecondsOfIntro ?? 2;
+        }
+
+        /// <inheritdoc/>
+        public string Name => Plugin.Instance!.Name;
+
+        /// <inheritdoc/>
+        public Task<IReadOnlyList<MediaSegmentDto>> GetMediaSegments(MediaSegmentGenerationRequest request, CancellationToken cancellationToken)
+        {
+            var segments = new List<MediaSegmentDto>();
+
+            if (Plugin.Instance!.Intros.TryGetValue(request.ItemId, out var introValue))
+            {
+                segments.Add(new MediaSegmentDto
+                {
+                    StartTicks = TimeSpan.FromSeconds(introValue.Start).Ticks,
+                    EndTicks = TimeSpan.FromSeconds(introValue.End - _remainingSecondsOfIntro).Ticks,
+                    ItemId = request.ItemId,
+                    Type = MediaSegmentType.Intro
+                });
+            }
+
+            if (Plugin.Instance!.Credits.TryGetValue(request.ItemId, out var creditValue))
+            {
+                segments.Add(new MediaSegmentDto
+                {
+                    StartTicks = TimeSpan.FromSeconds(creditValue.Start).Ticks,
+                    EndTicks = TimeSpan.FromSeconds(creditValue.End - _remainingSecondsOfIntro).Ticks,
+                    ItemId = request.ItemId,
+                    Type = MediaSegmentType.Outro
+                });
+            }
+
+            return Task.FromResult<IReadOnlyList<MediaSegmentDto>>(segments);
+        }
+
+        /// <inheritdoc/>
+        public ValueTask<bool> Supports(BaseItem item) => ValueTask.FromResult(item is Episode);
+    }
+}