fix xmltv generation for on-demand playout mode (#2591)

CHANGELOG.md

@@ -10,7 +10,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - Add `MediaItem_Resolution` template data (the current `Resolution` variable is the FFmpeg Profile resolution)
   - Add `MediaItem_Start` template data (DateTimeOffset)
   - Add `MediaItem_Stop` template data (DateTimeOffset)
-- Time shift on-demand playouts every hour to prevent XMLTV from appearing empty
 
 ### Fixed
 - Fix HLS Direct playback with Jellyfin 10.11
@@ -23,6 +22,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Properly set explicit audio decoder on combined audio and video input file
 - Fix building sequential schedules across a UTC offset change
 - Fix block start time calculation across a UTC offset change
+- Fix XMLTV generation for channels using on-demand playout mode
 
 ### Changed
 - Use smaller batch size for search index updates (100, down from 1000)

ErsatzTV.Application/Playouts/Commands/BuildPlayoutHandler.cs

@@ -298,7 +298,7 @@ public class BuildPlayoutHandler : IRequestHandler<BuildPlayout, Either<BaseErro
                     // and therefore the segmenter may need to seek into the next item instead of
                     // starting at the beginning (if already working ahead)
                     changeCount += await dbContext.SaveChangesAsync(cancellationToken);
-                    bool hasChanges = changeCount > 0;
+                    bool hasChanges = changeCount > 0 || referenceData.Channel.PlayoutMode is ChannelPlayoutMode.OnDemand;
 
                     if (request.Mode != PlayoutBuildMode.Continue && hasChanges)
                     {

ErsatzTV/Services/SchedulerService.cs

@@ -213,18 +213,13 @@ public class SchedulerService : BackgroundService
             .Include(p => p.Channel)
             .ToListAsync(cancellationToken);
 
-        foreach (Playout playout in playouts.OrderBy(p => decimal.Parse(p.Channel.Number, CultureInfo.InvariantCulture)))
+        foreach (Playout playout in playouts.OrderBy(p => decimal.Parse(
+                     p.Channel.Number,
+                     CultureInfo.InvariantCulture)))
         {
             await _workerChannel.WriteAsync(
                 new BuildPlayout(playout.Id, PlayoutBuildMode.Continue),
                 cancellationToken);
-
-            if (playout.Channel.PlayoutMode is ChannelPlayoutMode.OnDemand)
-            {
-                await _workerChannel.WriteAsync(
-                    new TimeShiftOnDemandPlayout(playout.Id, DateTimeOffset.Now, false),
-                    cancellationToken);
-            }
         }
     }