beets_service: read-only SQLite queries against the beets DB (mode=ro,
matches the WAL setup in db.py's enable_beets_db_wal). Decodes the `path`
column, which beets stores as a BLOB not TEXT. stats() gives dashboard/
migration-verification parity with `beet stats`.
spotify_client: client-credentials OAuth (token cached in-process),
paginated playlist-track fetch. Verified with mocked httpx responses:
pagination across pages, null-track filtering (removed/local tracks),
ISRC extraction, and token reuse across calls.
status_service: reconciles a playlist's live Spotify tracklist against
beets (IN_LIBRARY, by ISRC or normalized artist+title), sldl's per-playlist
_sldl.m3u8 index (DOWNLOADED_PENDING_IMPORT), and the tag-guard quarantine
dir (QUARANTINED, matched by filename since quarantined files have no
tags by definition) -- everything else is NOT_YET_ATTEMPTED.
ATTEMPTED_NO_MATCH is deliberately not implemented (the only signal is
grepping sldl's per-run text logs, which the migration plan already flags
as unreliable rather than authoritative).
Verified end-to-end against a fake beets DB + sldl index + quarantine dir:
all four statuses reconcile correctly, including both the ISRC-match and
normalized-artist+title-fallback paths.
andrew
fe98afaaf4