From 8c38987d923af784a6d59de3b2eb98896c01161b Mon Sep 17 00:00:00 2001
From: advplyr <advplyr@protonmail.com>
Date: Tue, 22 Jul 2025 14:44:36 -0500
Subject: [PATCH] Fix podcast episode track index null in playback session

---
 server/controllers/SessionController.js | 7 ++++++-
 server/models/PodcastEpisode.js         | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/server/controllers/SessionController.js b/server/controllers/SessionController.js
index 7160eace..ed662ee8 100644
--- a/server/controllers/SessionController.js
+++ b/server/controllers/SessionController.js
@@ -288,7 +288,12 @@ class SessionController {
       return res.sendStatus(404)
     }
 
-    const audioTrack = playbackSession.audioTracks.find((t) => t.index === audioTrackIndex)
+    let audioTrack = playbackSession.audioTracks.find((t) => toNumber(t.index, 1) === audioTrackIndex)
+
+    // Support clients passing 0 or 1 for podcast episode audio track index (handles old episodes pre-v2.21.0 having null index)
+    if (!audioTrack && playbackSession.mediaType === 'podcast' && audioTrackIndex === 0) {
+      audioTrack = playbackSession.audioTracks[0]
+    }
     if (!audioTrack) {
       Logger.error(`[SessionController] Unable to find audio track with index=${audioTrackIndex}`)
       return res.sendStatus(404)
diff --git a/server/models/PodcastEpisode.js b/server/models/PodcastEpisode.js
index 27e702a1..996f55f5 100644
--- a/server/models/PodcastEpisode.js
+++ b/server/models/PodcastEpisode.js
@@ -185,6 +185,7 @@ class PodcastEpisode extends Model {
     const track = structuredClone(this.audioFile)
     track.startOffset = 0
     track.title = this.audioFile.metadata.filename
+    track.index = 1 // Podcast episodes only have one track
     track.contentUrl = `/api/items/${libraryItemId}/file/${track.ino}`
     return track
   }