- Add rate limiting to all 4 Spotify pagination loops (get_artist_albums,
get_user_playlists, get_playlist_tracks, get_album_tracks) — these
called sp.next() bypassing the rate_limited decorator entirely, causing
unthrottled API calls that triggered 429 bans
- Track pagination calls in API rate monitor (separate endpoint names)
- Increase DELAY_BETWEEN_ARTISTS from 2s to 4s in watchlist scanner
- Abort watchlist scan immediately if Spotify rate limit detected mid-scan
instead of continuing to hammer the API
- New core/api_call_tracker.py — centralized tracker with rolling 60s
timestamps (speedometer) and 24h minute-bucketed history (charts)
- Instrument all 9 service client rate_limited decorators to record
actual API calls with per-endpoint tracking for Spotify
- 1-second WebSocket push loop for real-time gauge updates
- Modern radial arc gauges with service brand colors, glowing active
arc, endpoint dot, 0/max scale labels, smooth CSS transitions
- Click any gauge to open detail modal with 24h call history chart
(Canvas 2D, HiDPI, gradient fill, grid lines, danger zone band)
- Spotify modal shows per-endpoint history lines with color legend
and live per-endpoint breakdown bars
- Rate limited state indicator — blinking red badge with countdown
timer appears on gauge card when Spotify ban is active
- REST endpoint GET /api/rate-monitor/history/<service> for chart data
- Responsive grid layout (5 cols desktop, 3 tablet, 2 phone)
Five places in web_server.py called spotify_client.sp.search() directly,
bypassing the cached search_tracks()/search_artists() methods. Each
discovery worker (Tidal, YouTube, ListenBrainz, Beatport) was also
doubling API calls — sp.search() for raw data then search_tracks() for
Track objects.
Now all use cached methods only. Raw track data for album art is
retrieved from the metadata cache by track ID after matching. Also fixed
a pre-existing bug where Tidal discovery could pair stale Spotify raw
data with a newer iTunes match.
Bumped is_spotify_authenticated() probe cache TTL from 5 to 15 minutes
to reduce /v1/me calls (~288/day → ~96/day). Manual disconnect still
takes effect immediately via _invalidate_auth_cache().
The cache stores raw_data through _extract_fields which expects a dict
with a 'name' field. Storing a raw list caused silent AttributeError,
and storing a dict without 'name' triggered junk entity rejection
(empty string is in _JUNK_NAMES). Now wraps the albums list in a dict
with a valid name field so it passes validation and persists correctly.
The watchlist auto-scan needs fresh data from Spotify to detect new
releases, so it bypasses the cache added in the previous commit.
All other callers (UI browsing, completion badges, discography views)
continue to benefit from cached results.
get_artist_albums was making fresh API calls on every invocation with
no cache check, despite being one of the most called methods (discography
views, completion badges, watchlist scans). The method already cached
individual albums opportunistically but never checked for a cached result
before hitting the API.
Now follows the same check-then-fetch-then-cache pattern used by
get_album_tracks and get_artist. Cache key includes album_type param
so different queries (album,single vs compilation) are cached separately.
When spotipy exhausts all retries on 429 errors, the actual
Retry-After value (often 10+ hours) is consumed internally by
spotipy and not passed in the exception. The default ban was
only 1 hour, causing an endless retry cycle. Increased to 4
hours to match the escalation max and give Spotify's ban time
to expire.
The background enrichment worker now caps itself at 3,000 processed items
per calendar day. Counter resets at midnight automatically. When exhausted,
the worker sleeps and checks every 5 minutes for a new day.
This is scoped entirely to the enrichment worker — user-initiated Spotify
API calls (searches, playlist ops, album lookups, etc.) are completely
unaffected. Budget status is exposed in the worker's get_stats() response
for the dashboard widget.
- Frontend was concatenating Track and Artist inputs into a single
query string, causing Spotify to return mixed results matching
either word in any field. Now sends track and artist as separate
params; backend builds field-filtered query (track:X artist:Y).
- Result limit was silently capped at 10 in spotify_client.search_tracks
via min(limit, 10). Raised to respect requested limit up to
Spotify's API max of 50.
- iTunes fallback endpoint updated with same field-specific params.
- Legacy ?query= param still supported for backward compatibility.
Fixes#194
Both clients have their own Track class separate from iTunes. The
album preference commit added album_type/total_tracks to from_*_track()
constructors but not to the class definitions, crashing all Deezer and
Spotify discovery searches.
Add album_type and total_tracks fields to Track dataclass, populate from
Spotify/iTunes/Deezer API responses, and apply a small tiebreaker bonus
(+0.02 for albums, +0.01 for EPs) in all matching loops so album versions
win when confidence scores are otherwise equal.
Users can now choose between iTunes/Apple Music and Deezer as their free
metadata source in Settings. Spotify always takes priority when authenticated;
the fallback handles all lookups when it's not.
Core changes:
- DeezerClient: full metadata interface (search, albums, artists, tracks)
matching iTunesClient's API surface with identical dataclass return types
- SpotifyClient: configurable _fallback property switches between iTunes/Deezer
based on live config reads (no restart needed)
- MetadataService, web_server, watchlist_scanner, api/search, repair_worker,
seasonal_discovery, personalized_playlists: all direct iTunesClient imports
replaced with fallback-aware helpers
Database:
- deezer_artist_id on watchlist_artists and similar_artists tables
- deezer_track_id/album_id/artist_id on discovery_pool and discovery_cache
- Full CRUD for Deezer IDs: add, read, update, backfill, metadata enrichment
- Watchlist duplicate detection by artist name prevents re-adding across sources
- SimilarArtist dataclass and all query/insert methods handle Deezer columns
Bug fixes found during review:
- Similar artist backfill was writing Deezer IDs into iTunes columns
- Discover hero was storing resolved Deezer IDs in wrong column
- Status cache not invalidating on settings save (source name lag)
- Watchlist add allowing duplicates when switching metadata sources
Fix short artist names (e.g. "ano") getting buried by wildcard matches. Re-ranks Spotify and iTunes results so exact name matches appear first, without changing what's returned.
Increase Spotify client rate limit and reduce API contention during watchlist scans. Changes:
- core/spotify_client.py: Bumped MIN_API_INTERVAL from 0.2s to 0.35s (~171 calls/min) to stay safely under Spotify's ~180/min limit.
- web_server.py: In start_watchlist_scan and automatic scan flow, pause spotify_enrichment_worker and itunes_enrichment_worker before scanning (tracking with _enrichment_was_running/_itunes_enrichment_was_running) and resume them in finally blocks; added console prints for pause/resume. This prevents enrichment workers from contending for API quota during long scans.
- webui/static/script.js: Improved enrichment status tooltip logic to prioritize explicit currentType and then fall back to completion-based inference with explicit branches for artists, albums, and tracks for clearer progress text.
These changes aim to avoid API rate violations and make scan progress display more predictable.
Add a release_date field to the Track dataclass for both iTunes and Spotify clients (iTunes: parsed from releaseDate, Spotify: from album.release_date). Propagate release_date into enhanced search results in web_server and into the client-side script so album objects include release_date when available. Also broaden playlistId matching in the missing-tracks process to include 'enhanced_search_track_'. Removed SQLite SHM/WAL files from the repo (cleanup of DB temporary files). These changes enable showing and using track release dates across the app.
Add _get_playlist_items_page to call the new playlists/{id}/items endpoint (Feb 2026 API migration) and fall back to spotipy.playlist_items (old /tracks) on 403/404. Update _get_playlist_tracks and web_server.get_playlist_tracks to use the new helper to avoid 403 errors for Development Mode apps while preserving compatibility with Extended Quota Mode.
Add a UI button to disconnect Spotify and fall back to iTunes/Apple Music without restarting. Cache is_spotify_authenticated() with a 60s TTL to reduce redundant API calls (~46 call sites were each
triggering a live sp.current_user() call). Fix status endpoint calling the auth check twice per poll,
and ensure both OAuth callback handlers (port 8008 Flask route and port 8888 dedicated server)
invalidate the status cache so the UI updates immediately after authentication.
Spotify's @rate_limited decorator now retries on 429/5xx with exponential backoff (up to 5 retries) instead of sleeping once and raising. Watchlist scan delays scale dynamically based on lookback setting and artist count to prevent sustained API pressure. A circuit breaker pauses the scan after consecutive rate-limit failures.
Adds iTunes fallback to SpotifyClient for search and metadata when Spotify is not authenticated. Updates album type logic to distinguish EPs, singles, and albums more accurately. Refactors watchlist database methods to support both Spotify and iTunes artist IDs. Improves deduplication and normalization of album names from iTunes. Updates web server and frontend to use new album type logic and support both ID types. Adds artist bubble snapshot example data.
Eliminated unnecessary filtering of playlists by owner or collaboration status, as the Spotify API already returns all accessible playlists. This simplifies the code and ensures all relevant playlists are processed.
Introduces a reload_config method to SpotifyClient and refactors ConfigManager to support reloading configuration from a file. Updates web_server.py to use the new config loading mechanism, ensuring configuration is loaded into the existing singleton instance and SpotifyClient is properly re-initialized after settings changes.
Implements an enhanced search endpoint in the backend that unifies Spotify and local database results, returning categorized artists, albums, and tracks. Updates the frontend with a new dropdown overlay for live search, debounced input, categorized result rendering, and direct integration with the main results area for album/track selection. Adds new CSS for the dropdown and result cards, and updates the Track dataclass to include image URLs for richer UI display.
Redirect URIs for Spotify and Tidal OAuth are now configurable via the web UI and settings. Updated backend clients to use the configured redirect URI if provided, improving flexibility for deployments with custom callback URLs.
