Listens to mediaItemProvider + cacheSettingsProvider. On track change
(or settings change), computes the [currentIdx, currentIdx + N] window
in the queue and pins each uncached track via AudioCacheManager with
source: autoPrefetch.
Window N comes from cacheSettingsProvider.prefetchWindow (default 5,
configurable in Settings → Storage card).
Smoke-test only at the unit level — real coverage via on-device pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Drives /api/library/sync against drift:
- reads cursor from SyncMetadata (default 0 = full snapshot)
- 204 → just bump lastSyncAt, return zeroes
- 410 → wipe all cached entities + retry from cursor=0
- 200 → apply upserts + deletes per entity type, advance cursor
Handles all 8 entity types (artist/album/track + like_track/like_album/
like_artist + playlist/playlist_track) for both upsert and delete paths.
Composite-key entities use the "<a>:<b>" string format the server emits.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
connectivityProvider — StreamProvider<bool>; true when any connectivity
result is non-none. No Wi-Fi gate per operator decision.
cacheSettingsProvider — AsyncNotifier<CacheSettings> persisting
capBytes / prefetchWindow / cacheLikedTracks via flutter_secure_storage.
Defaults: 5 GB cap, 5-track prefetch, cache liked = on.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen