The lazy source-build commit (1ddde12) introduced a race: when the
user taps play on a new track while a previous queue's
_fillRemainingSources is still working, the stale fill keeps
calling _player.addAudioSource() on the new player state — appending
old-playlist tracks into the new queue and confusing the player into
the "locked to one song" symptom.
Fix: queue-generation counter. setQueueFromTracks bumps
_queueGeneration first thing; the background fill captures its gen
at start and aborts before any further player mutation if a newer
queue has taken over. The previous play() never gets to mutate the
new player state.
Also resets _suppressIndexUpdates at the start of every
setQueueFromTracks (defensive — covers the case where a prior
backward-fill bailed on its gen check before reaching `finally`)
and only releases the flag in finally if we're still the active
gen.
Symptoms this should resolve:
- "locked to one song" after rapid play taps
- Late `play() returned 73189ms` lines indicating a previous
hung play() call finally resolving and stepping on current state
- Player stuck in odd processingState after queue swaps
Two unrelated wins as a single batch.
Flutter — lazy source building in setQueueFromTracks:
Today: Future.wait builds all N AudioSource objects (drift queries +
LockCaching ctor) before the player can call setAudioSources →
play(). Measured at 83ms for a 25-track playlist, on top of the
~285ms initial-source preload.
New flow: build only the initial source, hand it to setAudioSources
([initial], initialIndex: 0) so play() can start, then background-
fill the rest. Forward direction (skipNext targets) added via
addAudioSource. Backward direction (skipPrev) inserted at index 0..
initialIndex-1 with _suppressIndexUpdates true so the unavoidable
currentIndex shifts don't push the wrong MediaItem onto the stream.
Saves the up-front source-build wait — tap-to-audio for long queues
should drop by ~80-100ms even on cache hits.
Server — Cache-Control on the three byte-serving endpoints:
- /api/albums/{id}/cover: max-age=86400, must-revalidate. Covers
change rarely (re-scan, MBID enrichment); a day of cache is safe
and skips conditional GETs for the bulk of a session.
- /api/playlists/{id}/cover: max-age=300, must-revalidate. Collages
recompute when contents change; short enough for edits to feel
fresh, long enough to skip repeat fetches during a session.
- /api/tracks/{id}/stream: max-age=31536000, immutable. Track bytes
are immutable for a given id (scanner re-indexes by file_path; new
files get new ids). LockCachingAudioSource on the Flutter side
already disk-caches, but proper headers let it skip even the
conditional 304 on repeat plays.
Tap→audio measured at ~370ms — that path's fast. Real symptom: a few
seconds of audio, then silence with no event surfaced to Flutter.
ExoPlayer is failing/completing somewhere and we have no log to act
on.
Three changes, all log-only:
- Add onError to playbackEventStream so stream failures (404, range-
request bugs, decoder errors, network drops) print instead of
silently halting playback.
- Subscribe to playerStateStream and log playing + processingState
on every transition. Silent stops will now show as a state shift
to completed / idle / buffering with no resumption.
- Subscribe to processingStateStream separately to catch fine-grained
state transitions ExoPlayer reports between source advances.
After hot-restart, tap-then-go-quiet should produce a sequence we
can read — most likely either "processingState=completed" partway
through (server returning premature EOS or wrong Content-Length) or
a thrown error from ExoPlayer's source-loading path.
CI fixes:
- artist_detail_screen.dart: drop unnecessary foundation import (debugPrint
comes from material) and unused metadata_prefetcher import.
Playback timing visibility (so we can stop guessing where the lag
lives):
- playTracks now logs serverUrl / token / configure / setQueue /
play() returned, each stage in milliseconds. The next time you
tap play, we'll see exactly where the seconds go.
- setQueueFromTracks adds two more measurements: total source-build
time across all tracks, and setAudioSources duration.
Small concrete win:
- audio_handler caches the application cache dir path on first use
(already cached in _maybeRegisterStreamCache; now also used in
_buildAudioSource for the LockCachingAudioSource path). One less
platform channel hit per track on cache-miss queue builds.
Once we see real numbers we can decide whether the fix is to build
sources lazily (initial source first → play → background-add the
rest), pre-warm the audio handler at app start so playTracks skips
serverUrl + token reads entirely, or something else.
Closes the gap where LockCachingAudioSource wrote files to disk but
never told AudioCacheManager about them — meaning evict() couldn't
reclaim stream-cached files when usage exceeded the cap, only
explicitly-pinned downloads.
Wire just_audio's bufferedPositionStream as the "download complete"
signal: when bufferedPosition reaches duration (with 200ms slack for
header bytes), look up the on-disk file at the LockCaching path,
read its size, and insert an audio_cache_index row via the new
AudioCacheManager.registerStreamCache(). Source defaults to
incidental so stream-cached tracks are first to be evicted under
pressure.
Dedupe via _streamCacheRegistered Set so we don't hit drift on every
~200ms buffered-position emit. Cache the application cache dir path
on first use for the same reason.
Eviction now sees the full set of files on disk; usageBytes() (which
already walks the dir) and evict() (which reads the index) are
finally consistent for stream-cached tracks. Pinned tracks keep
their existing manual-download flow unchanged.
Three issues, all related to the player surface:
1. Player UI didn't update on track change. audio_handler's
_onCurrentIndexChanged only kicked off the cover load — it never
pushed the new MediaItem onto the mediaItem stream. Title/artist/
cover stayed pinned to whatever setQueueFromTracks(initialIndex:)
set on first play. Now the listener pushes queue[idx] when the
index changes.
2. Player kebab "Go to artist" 404'd while the same item from
MostPlayed worked. Same TrackActionsSheet for both, but the
player's _trackRefFromMediaItem was hardcoding artistId: ''
because audio_handler's _toMediaItem never stashed it in extras.
Stash artist_id alongside album_id; player_bar +
now_playing_screen read it back. Both kebabs now navigate.
3. "Start radio" didn't exist on Flutter even though the server has
/api/radio?seed_track=<id>. New RadioApi (lib/api/endpoints/
radio.dart) wraps the endpoint; PlayerActions.startRadio(trackId)
fetches + plays the result via the existing playTracks path.
New menu item between "Add to playlist" and the divider above
"Go to album", calls startRadio with a snackbar error fallback.
Update banner showing on identical versions:
- pubspec.yaml was stuck at the placeholder 0.1.0+1, so
PackageInfo.version returned "0.1.0" while the server reported the
actual release tag (e.g. "2026.05.10.1"). Comparison correctly said
"newer" → banner always showed.
- Bump pubspec to 2026.05.11.0+1 so the local default matches the
release cadence even before CI overrides it.
- Update flutter.yml release step to pass --build-name="${TAG#v}" so
every tagged APK reports the tag as its PackageInfo.version. Future
releases stop drifting from pubspec.
- Rewrite isVersionNewer to do component-wise int comparison with
zero-padding: pub_semver.Version.parse rejects 4-part date versions
like "2026.05.10.1", at which point the old code fell back to
string inequality and treated "2026.05.10" as newer than itself
vs "2026.05.10.0". Drop the pub_semver import (no longer used).
Lock-screen play/pause not responding:
- PlaybackState only listed MediaAction.seek in systemActions, which
on Android 13+ means tapping the lock-screen play/pause button
doesn't route back to the AudioHandler. Add play, pause,
skipToNext, skipToPrevious to the set.
- Add androidCompactActionIndices: [0, 1, 2] so the compact
notification view explicitly maps the three buttons.
Album art being smaller than the lock-screen frame is upstream of
this commit — the cover-cache writes whatever pixel dimensions the
server returns. If the server's /api/albums/<id>/cover returns small
thumbnails for these albums, the lock screen renders them at that
size. Worth a separate look at the server cover-emit path.
Why the seek bar appeared frozen: it was reading
PlaybackState.updatePosition, which audio_service only updates on
event transitions (play/pause/buffer/seek). Between events it sits
unchanged, so the bar only jumped at intervals.
Expose just_audio's positionStream (~200ms cadence) from the audio
handler, wrap as positionProvider, and read that in both the mini bar
and the full player. Now the bar advances continuously while playing.
While we're here: spread the full player's vertical layout per
operator — gap to seek 20→32, seek-to-primary 8→24, primary-to-
secondary 16→24, plus 24 below to match. The full player had visible
slack above the controls; this redistributes it.
Cleared 5 errors + 1 warning + 1 info from CI flutter analyze on 5114a81:
- prefetcher.dart: Riverpod listener callbacks used (_, _) for two
placeholder params — Dart 3 enforces unique names. Changed to (_, __).
- prefetcher.dart: Riverpod 3's AsyncValue exposes `.value` (nullable)
not `.valueOrNull`. Three call sites updated.
- sync_controller.dart: doc comment had `?since=<cursor>` → analyzer
warned about unintended HTML. Wrapped in backticks with `{cursor}`.
- sync_controller.dart: delete loop over heterogeneous Table list
inferred as List<Table>; drift's delete() expects TableInfo. Unrolled
to explicit per-table deletes.
- audio_cache_manager_test.dart: db.into(...).insertAll([...]) doesn't
exist on InsertStatement — only insert/insertOnConflictUpdate. Used
db.batch((b) => b.insertAll(table, [...])) instead, in two test cases.
- audio_handler.dart: LockCachingAudioSource is marked experimental in
just_audio. Added // ignore: experimental_member_use — operator
acknowledged the experimental status during brainstorming and we're
the project; CI's --fatal-infos would otherwise gate.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
_buildAudioSource is now async and cache-aware:
1. Cache hit → AudioSource.uri(file://path)
2. Cache miss with manager → LockCachingAudioSource (cache-as-you-play)
3. No manager configured → plain AudioSource.uri (legacy fallback)
playerActionsProvider.playTracks now passes audioCacheManager into
configure() alongside coverCache. setQueueFromTracks awaits the source
build (Future.wait over the track list).
Out of scope: registering an index row when LockCachingAudioSource
finishes downloading (no clean hook from just_audio). Prefetcher /
Download buttons cover the index path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Three small data-layer additions for the upcoming track-actions menu:
- PlaylistsApi.appendTracks(playlistId, trackIds) wraps
POST /api/playlists/{id}/tracks for the "Add to playlist" action.
- audio_handler gains playNext (insertAudioSource at currentIndex+1)
and enqueue (addAudioSource) — both also push the audio_service
queue notifier so the queue-screen UI stays in sync.
- The AudioSource construction was extracted into a private
_buildAudioSource helper so setQueueFromTracks / playNext / enqueue
share one source-building path.
- PlayerActions exposes playNext / enqueue for menu use.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Audio handler accepts an AlbumCoverCache via configure() and uses it
to populate MediaItem.artUri with a file:// URI to a locally cached
album cover. Lock screen, Bluetooth car displays, Wear OS, and CarPlay
now show the album cover for the currently playing track instead of
the system's generic music icon.
Flow:
- _toMediaItem stashes album_id in MediaItem.extras
- After setQueueFromTracks pushes the queue + initial mediaItem, fires
_loadArtForCurrentItem async (doesn't block playback)
- Subscribes to _player.currentIndexStream so track advances trigger
the same loader for the new current item
- _loadArtForCurrentItem early-returns if cache is null, no current
item, no album_id, or artUri already set; otherwise calls
cache.getOrFetch and pushes an updated MediaItem with artUri set
- Race guard: if the user skipped to another track while the fetch was
in flight, the result is discarded
Closes the visible "generic music icon on lock screen" gap operator
flagged when first-testing on a real device.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Two issues from on-device testing against prod HTTPS:
1. ServerImage was resolving cover URLs correctly
(https://minstrel.fabledsword.com/api/albums/.../cover) but the server
returned 401 because Image.network doesn't carry the session token
automatically the way the browser sends cookies. Forwards the stored
session token as an Authorization: Bearer header. No-op when no token
is present.
2. The "Cleartext HTTP traffic to 127.0.0.1" audio error reproduced even
after the previous defensive check landed, which means the URL handed
to ExoPlayer has a valid scheme+host (just the wrong host). The check
only catches scheme-less URLs, so it didn't fire. Added debugPrint
logging at configure() and setQueueFromTracks() time to show the
actual baseUrl + per-track resolved URL on the next reproduction.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Cover-art Image.network calls were passing server-relative URLs
(/api/albums/<id>/cover) straight to NetworkImage, which interprets
"no scheme" as file:/// and crashes with "No host specified in URI".
Same root cause regardless of HTTPS or HTTP server.
ServerImage wraps Image.network with a Riverpod read of
serverUrlProvider and prefixes the configured base URL. Absolute URLs
(e.g. discover screen's Lidarr image_urls) pass through unchanged.
Three call sites updated: album_card, artist_card, playlists_list_screen.
discover_screen left as-is — its row.imageUrl is already absolute (Lidarr
returns full URLs from MusicBrainz / Spotify metadata) and it has a
meaningful errorBuilder that ServerImage doesn't expose.
Also adds a defensive check in audio_handler.setQueueFromTracks: if
the constructed stream URL ends up scheme-less, throw a StateError
naming baseUrl + track.streamUrl + track.id instead of letting it
fall through to ExoPlayer which surfaces a confusing "Cleartext HTTP
traffic to 127.0.0.1 not permitted" error (Android's URL parser
defaults a scheme-less URI to localhost). User reported this exact
confusing error against an HTTPS prod server; the better message
will pinpoint where the empty baseUrl comes from on next reproduction.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
1. lib/app.dart + lib/shared/routing.dart — buildRouter takes a Ref but was
being called from a ConsumerWidget's build() with a WidgetRef. Add a
routerProvider; the widget watches it instead of constructing the
router from its own ref. Real bug — would have crashed compile in
slice 1, just never compiled until CI ran.
2. lib/player/audio_handler.dart — override of AudioHandler.seek used
`p` for the Duration; rename to `position` to match the base class
(avoid_renaming_method_parameters lint).
3. lib/theme/theme_extension.dart — fromTokens() returned a non-const
constructor; all inputs are const so make the call const too
(prefer_const_constructors).
4. test/library/home_screen_test.dart — same const-constructor lint on
the HomeData test fixture.
5. test/smoke_test.dart — drop the unused
`import 'package:flutter/material.dart'`.
These are exactly the kind of issues the no-in-task-tests rule shifted
to CI; this is the first run that actually exercises the analyzer
against the slice 1 code.
audio_service runs the handler in a background isolate; UI watches
playbackState/mediaItem/queue streams through Riverpod. AndroidManifest
gets the foreground-service media-playback permission; Info.plist gets
UIBackgroundModes=audio. Bearer token attached to stream URLs via
just_audio's per-source headers.
bvandeusen