#775 already resolves pasted Spotify / Apple / MusicBrainz / Deezer links to an
exact artist/album/track on the Search page. Added Discogs to that set (the one
source in the request not already covered; Amazon left out per request).
- by_id resolver: discogs in SUPPORTED_SOURCES + _KNOWN_HOSTS; parse
/artist/<id>-slug, /release/<id>-slug, /master/<id>-slug (master→album), and
strip the slug to the leading numeric id. Discogs has no standalone track
URLs (tracks live inside a release), so artist + album resolve.
- Fetch dispatch: discogs albums use get_album(include_tracks=False) like
itunes/musicbrainz; artists use get_artist; both already return the common
normalized card shape. Updated the not-a-link hint to mention Discogs.
Frontend needs no change — it adopts whatever source the resolver returns and
Discogs is already a search source. Tests: parse release/master/artist
(slug-stripped, scheme-less) + resolve release→get_album(numeric id) and
artist→get_artist. 43 by_id tests pass.
Spotify/Apple/MusicBrainz/Deezer artist links now resolve via each source's
get-by-id (get_artist / Deezer get_artist_info), shaped to the artist card and
rendered as an artist result that opens the artist detail page through the
existing flow. Album/track link handling is unchanged; bare IDs still rejected.
Follow-up to the bare-ID footgun: a bare number like 525046 carries no
source and no entity type, so it resolved to whatever album happened to own
that id (a user pasting Kendrick's Deezer artist id got an unrelated album).
Now the resolver accepts provider URLs (and the explicit spotify: URI) only;
a bare/unrecognized string is rejected and the dropdown surfaces a hint to
paste a full link. URL parsing + album/track resolution are unchanged.
New 'Link / ID' input on the Search page: paste a Spotify / Apple Music /
MusicBrainz / Deezer URL (or a bare ID) and it's looked up directly on the
owning source — no fuzzy search, no scoring.
- core/search/by_id.py: source-agnostic parser (URL domain/path or bare-ID
format -> source,kind,id; numeric IDs fan out, first hit wins) + per-source
get-by-id dispatch + adapters projecting each provider's dict onto the
standard album/track card shape.
- /api/enhanced-search/by-id: thin additive route over resolve_identifier.
- Frontend: dedicated input that adopts the resolved source as active and
renders through the existing dropdown + download/import flow.
Purely additive — existing files are insertion-only; the resolver runs only
behind the new route. 29 seam tests cover parsing, shaping, fan-out, and
not-found.
