Audiobooks not being displayed

[maeffjus]

Hey Chamika,
I really like your software!
I mainly installed it for playing audiobooks in my Polestar 4.
But that is my problem - I installed Jellyfin on my server to stream them - when I add the mp3-audiobooks to my library, Dashtune does not display them. (When being in the books cathegory)
When I instead add the same folders as music, it works like a charm.
But there is a catch - the musics last position is not stored for multiple tracks.
So lets say I got two books, when I stop one to listen to another and then get back to it, it starts from the first track.
I'd assume that this is related to them being recognized as music.

It is not superbad, but if you can - without lots of work / pain add the possibility to play audiobooks from the books-section, that would be really great!

Regards,
maeffjus

[maeffjus]

So I dug into the source code together with Claude (Anthropic's AI) and traced the root cause of my issue. It's actually a two-layer filtering problem:

1. The API queries in JellyfinMediaTree.kt never ask Jellyfin for audiobook items
   All the browse functions explicitly filter on music types only. For example, getLatestAlbums() and getRandomAlbums() use includeItemTypes = listOf(BaseItemKind.MUSIC_ALBUM), getFavourite() filters for AUDIO, MUSIC_ALBUM, and MUSIC_ARTIST, and search() only queries MUSIC_ALBUM, PLAYLIST, and AUDIO. So when Jellyfin has content in a Books library, it tags those items as BaseItemKind.AUDIO_BOOK — and the app simply never requests them.
2. MediaItemFactory.create() only handles four item kinds
   The when block in create() (line 278) maps MUSIC_ARTIST, MUSIC_ALBUM, PLAYLIST, and AUDIO to their respective builder methods. Anything else throws an UnsupportedOperationException. So even if an audiobook item somehow made it through the API layer, it would crash here.
   Why the "add as music library" workaround works: When audiobook MP3s live in a Jellyfin Music library, Jellyfin classifies them as AUDIO tracks inside a MUSIC_ALBUM. Both filters are happy. But in a Books library, the same files become AUDIO_BOOK items — invisible to DashTune.
   What a fix would roughly look like:

Add BaseItemKind.AUDIO_BOOK to the includeItemTypes lists in JellyfinMediaTree.kt (or introduce a separate "Audiobooks" browse category)
Add a handler for BaseItemKind.AUDIO_BOOK in MediaItemFactory.create(), likely similar to forAlbum() or a dedicated forAudiobook() method

The resume/position tracking issue from my original report is a separate concern — that's about per-album playback state persistence rather than filtering - Not so sure how to solve this...

Hope this helps!