chore: add diagnostic logging for pre-roll bumpers (v1.0.0.6)

Helps diagnose why a Trailer Pre-Roll/Feature Pre-Roll bumper isn't
playing by logging invalid library IDs, empty library results, and
the movie picked.

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Jellyfin.Plugin.CinemaTrailers4Jellyfins.csproj

@@ -3,8 +3,8 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>Jellyfin.Plugin.CinemaTrailers4Jellyfins</RootNamespace>
-    <AssemblyVersion>1.0.0.5</AssemblyVersion>
-    <FileVersion>1.0.0.5</FileVersion>
+    <AssemblyVersion>1.0.0.6</AssemblyVersion>
+    <FileVersion>1.0.0.6</FileVersion>
     <Nullable>enable</Nullable>
     <GenerateDocumentationFile>false</GenerateDocumentationFile>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Services/TrailerIntroProvider.cs

@@ -91,7 +91,7 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
 
             if (preRollEnabled)
             {
-                var preRoll = GetRandomLibraryMovieIntro(config.TrailerPreRollLibraryId, item.Id);
+                var preRoll = GetRandomLibraryMovieIntro("Trailer Pre-Roll", config.TrailerPreRollLibraryId, item.Id);
                 if (preRoll != null)
                     intros.Add(preRoll);
             }
@@ -145,7 +145,7 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
 
             if (featurePreRollEnabled)
             {
-                var featureRoll = GetRandomLibraryMovieIntro(config.FeaturePreRollLibraryId, item.Id);
+                var featureRoll = GetRandomLibraryMovieIntro("Feature Pre-Roll", config.FeaturePreRollLibraryId, item.Id);
                 if (featureRoll != null)
                     intros.Add(featureRoll);
             }
@@ -157,10 +157,16 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
         /// Picks a random Movie from the given Jellyfin library (VirtualFolder ItemId) to use as a
         /// pre-roll/post-roll bumper, excluding the item currently being played.
         /// </summary>
-        private IntroInfo? GetRandomLibraryMovieIntro(string libraryId, Guid excludeId)
+        private IntroInfo? GetRandomLibraryMovieIntro(string label, string libraryId, Guid excludeId)
         {
             if (!Guid.TryParse(libraryId, out var parsedId))
+            {
+                _logger.LogWarning(
+                    "|CinemaTrailers4Jellyfins| {Label} library ID '{LibraryId}' is not a valid GUID — check the plugin settings.",
+                    label,
+                    libraryId);
                 return null;
+            }
 
             var movies = _libraryManager
                 .GetItemList(new InternalItemsQuery
@@ -174,9 +180,21 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
                 .ToList();
 
             if (movies.Count == 0)
+            {
+                _logger.LogDebug(
+                    "|CinemaTrailers4Jellyfins| {Label} library {LibraryId} has no eligible Movie items. "
+                    + "Ensure the library has been scanned and contains at least one other Movie.",
+                    label,
+                    parsedId);
                 return null;
+            }
 
             var movie = movies[_rng.Next(movies.Count)];
+            _logger.LogDebug(
+                "|CinemaTrailers4Jellyfins| {Label}: picked '{Title}' ({Path}).",
+                label,
+                movie.Name,
+                movie.Path);
             return new IntroInfo { ItemId = movie.Id, Path = movie.Path };
         }
 

build.yaml

@@ -1,5 +1,5 @@
 ---
-version: 1.0.0.5
+version: 1.0.0.6
 name: CinemaTrailers4Jellyfins
 guid: b581493e-1046-40ed-b6dc-cb8027624984
 description: >
@@ -12,10 +12,10 @@ category: General
 owner: 514mart
 targetAbi: 10.11.0.0
 changelog:
-  - Add Trailer Pre-Roll and Feature Pre-Roll bumpers via IIntroProvider — pick
-    existing Jellyfin Movie libraries in settings and a random movie from each is
-    played before the trailer block ("Now Playing") and/or right before the
-    feature ("Feature Presentation"); both are independent and disabled by default
+  - Add diagnostic logging for Trailer Pre-Roll and Feature Pre-Roll bumpers —
+    logs a warning if the configured library ID is invalid, and a debug message
+    when no eligible movie is found or which movie was picked, to help
+    troubleshoot why a bumper isn't playing
 
 dotnetProjects:
   - name: Jellyfin.Plugin.CinemaTrailers4Jellyfins

manifest.json

@@ -8,6 +8,14 @@
         "owner": "514mart",
         "imageUrl": "https://www.git.quarantinedstudio.com/mvezina/CinemaTrailers4Jellyfins/raw/branch/main/Jellyfin.Plugin.CinemaTrailers4Jellyfins/Images/logo.svg",
         "versions": [
+            {
+                "checksum": "6c88aaeb38023b327e9b042181dc0708",
+                "changelog": "- Add Trailer Pre-Roll and Feature Pre-Roll bumpers via IIntroProvider \u2014 pick existing Jellyfin Movie libraries in settings and a random movie from each is played before the trailer block (\"Now Playing\") and/or right before the feature (\"Feature Presentation\"); both are independent and disabled by default\n",
+                "targetAbi": "10.11.0.0",
+                "sourceUrl": "https://www.git.quarantinedstudio.com/mvezina/CinemaTrailers4Jellyfins/releases/download/v1.0.0.5/cinematrailers4jellyfins_1.0.0.5.zip",
+                "timestamp": "2026-06-10T05:14:23Z",
+                "version": "1.0.0.5"
+            },
             {
                 "checksum": "af6051b002939e4e5cd6ef4baf5c85d4",
                 "changelog": "- Add TV show trailer downloads \u2014 separate TMDB sources (Airing Today, On The Air, Popular, Top Rated) and a \"Max TV show trailers per run\" cap independent from movies; set either cap to 0 to skip that category entirely\n- Add trailers before TV episodes via IIntroProvider \u2014 only the first episode a user watches each day gets trailers, picked using the show's genre/rating for filtering\n- Movie and TV trailers are now kept separate \u2014 movies only ever get movie trailers and episodes only ever get TV show trailers, via a tag written to each trailer's NFO at download time\n",