Library upgrade: find_library_artist_for_source returned None immediately for
Amazon because SOURCE_ID_FIELD has no 'amazon' entry (no DB column for Amazon
artist IDs). The name-based fallback was unreachable. Fix: only skip the column
query when column is None, not the whole function — name lookup now runs for
any source when artist_name + active_server are provided.
Artist images: add AmazonClient._get_artist_image_from_albums so the standard
_get_artist_image_from_source path in metadata/artist_image.py can call it as
a fallback (same hook iTunes/Deezer/Discogs expose). Searches by unslugified
artist name, matches primary artist, fetches album cover from album_metadata.
Test: updated test_source_only_set_matches_mapping_keys → _contains_all_mapped_
sources to assert subset (not equality) — SOURCE_ONLY_ARTIST_SOURCES intentionally
includes sources without a DB column that rely on name-only lookup.
T2Tunes albumList entries may not include a release_date field, leaving the
$year path template empty. get_album() now falls back to the first track's
release_date (populated from the FLAC date tag via get_album_tracks) when
album metadata has none. Also try camelCase releaseDate key at all albumList
read sites (Album.from_metadata, get_album, _fetch_album_metas consumers).
1 new test: release_date backfilled from stream date tag when absent from
album metadata. date tag "2024-11-22" added to MEDIA_RESPONSE_FLAC fixture.
media_from_asin returns no duration data. get_album_tracks now does one
search_raw call using the album name + primary artist from stream tags,
filters hits by albumAsin == requested asin, and builds a duration_map
(track asin → duration_ms). Search failures are swallowed — duration_ms
falls back to 0 so the existing behaviour is preserved on error.
2 new tests: duration populated when search returns matching hit; duration
stays 0 when search endpoint returns an error.
release_date: T2Tunes album metadata may use camelCase releaseDate — try both
keys at all read sites (get_album, get_track_details, Album.from_metadata,
_fetch_album_metas consumers). Final fallback: s.date from stream tags, which
T2Tunes always populates from embedded FLAC/MP4 date tag. Wire s.date into
get_album_tracks items and get_track_details album.release_date so the $year
path template resolves correctly.
disc_number crash: .get('disc_number', 1) returns None when key is present but
value is None (Amazon stream info has Optional[int] for disc_number). Switch all
max() call sites and disc_num assignments to `or 1` guard:
- master.py: run_full_missing_tracks_process max() and disc_num read
- candidates.py: track_info and detailed_track disc_number reads
- web_server.py: enhanced and standard album download max() calls
AcoustID verification was quarantining every Amazon track because T2Tunes
embeds [Explicit] and [feat. X] in stream tag titles/artists, but AcoustID
returns bare titles — triggering version-mismatch rejection on every track.
- get_track_details: apply _strip_edition to name/album, _primary_artist to
artist; wire s.track_number / s.disc_number instead of hardcoded None
- get_album_tracks: apply _strip_edition to name, _primary_artist to artist
Also fix TypeError crash in album download paths when disc_number is None
(present in dict but explicitly None, so .get('disc_number', 1) returns None):
- master.py run_full_missing_tracks_process: or 1 guard on both max() and disc_num
- candidates.py track_info extraction: or 1 guard on both disc_number reads
- web_server.py enhanced + standard album download max() calls: or 1 guard
- All search_raw calls switched from single-type to types="track,album" — T2Tunes only
returns results when both types are requested together
- _fetch_album_metas: parallel fetch (up to 5 workers) of album cover art via
album_metadata(asin) — T2Tunes search results carry no image URLs
- search_tracks: populates image_url, release_date, total_tracks from album meta
- search_artists: strips feat. credits via _primary_artist() so "Artist feat. X" and
"Artist ft. Y" collapse to one "Artist" entry; uses album cover as artist image
stand-in (same approach as iTunes — T2Tunes has no artist images)
- search_albums: name-based dedup (display_name + artist key) instead of ASIN-based;
populates image_url, release_date, total_tracks from album meta (cap 10 ASIN fetches)
- _strip_edition(): strips [Explicit]/(Explicit) from track/album names — explicit is
the default version; Clean/Edited/Censored labels kept as-is so they stay distinct
- get_album(): applies _strip_edition to name and _primary_artist to artist so
MusicBrainz preflight matching doesn't fail on "[Explicit]" album names
- get_album_tracks(): populates track_number and disc_number from T2TunesStreamInfo
instead of hardcoding None — fixes track ordering in multi-track album downloads
- get_artist() / get_artist_albums(): _unslugify() converts slug artist IDs back to
search names; _primary_artist() in comparison handles feat-annotated results
- SOURCE_ONLY_ARTIST_SOURCES: added "amazon" so artist detail page doesn't 404
- build_source_only_artist_detail: added amazon_client param + dispatch branch
- web_server.py: resolve amazon_client in _build_source_only_artist_detail wrapper;
add source_override=="amazon" branch in get_spotify_album_tracks endpoint
- 77 tests covering all above paths; all pass
Wires AmazonClient into the metadata source registry following the
exact same pattern as DeezerClient. No existing source paths touched.
- Add get_album_metadata / get_artist_info / get_artist_albums_list
aliases to AmazonClient (mirrors DeezerClient interface aliases)
- Register amazon in METADATA_SOURCE_PRIORITY and METADATA_SOURCE_LABELS
- Add _get_amazon_factory() + get_amazon_client() to registry.py
- Add amazon branch to get_client_for_source(); thread amazon_client_factory
kwarg through get_primary_client() and get_primary_source_status()
- Re-export get_amazon_client from the core.metadata_service shim
- Add Amazon Music option to Settings metadata source dropdown
- 3530 tests pass
core/amazon_client.py — T2Tunes-backed metadata client following the
DeezerClient/iTunesClient contract. Exposes search_tracks, search_artists,
search_albums, get_track_details, get_album, get_album_tracks, get_artist,
get_artist_albums, get_track_features. T2TunesStreamInfo dataclass captures
the hex decryption key returned by the proxy (CENC/AES-128). Handles the
"stremeable" API typo. 0.5 s rate-limit guard + api_call_tracker.
core/amazon_download_client.py — DownloadSourcePlugin backed by the above
client. Codec waterfall: FLAC → Opus → EAC3. Downloads the encrypted MP4
container, decrypts with ffmpeg -decryption_key, yields the native audio
file (.flac / .opus / .eac3). Not yet wired into the app source registry —
validated in isolation only; see tests/tools/.
tools/t2tunes_probe.py + tools/t2tunes_media_plan.py — standalone CLI tools
used for live API exploration during development.
tests/tools/test_amazon_client.py — 72 unit tests (all mocked).
tests/tools/test_amazon_download_client.py — 52 unit tests (all mocked).
124 tests pass.
