Tacobell444 (#707 follow-up): the scan summary said "New tracks: 19 • Added to
wishlist: 10" with no way to see which tracks those were — you had to scan your
wishlist and guess what was new.
Scan ledger: the scanner now records a per-run scan_track_events list (track,
artist, album, thumb, status added|skipped — skipped = found-new but declined
by add_to_wishlist: already queued or blocklisted; capped at 500). The status
endpoint already serializes scan_state, so the payload flows free. The
completed (and cancelled) scan summary on the Watchlist page gets a
"Show tracks" toggle expanding a styled list — Added section + Skipped section
with badges, reusing the live-feed row styling.
Download Origins grouping: the modal now groups entries by what triggered them
(watchlist artist / playlist name) with collapsible headers + counts instead of
a flat list with a per-row badge. Entries arrive newest-first so groups order
themselves by their newest download. Same row markup, checkboxes/delete intact.
Provenance: watchlist adds now stamp scan_run_id into wishlist source_info, so
per-run grouping is queryable later (future "what did run X add" views).
Tests: per-run ledger seam test (added + skipped statuses, album/artist fields,
FIFO unchanged). 316 watchlist/wishlist tests pass; JS syntax-checked.
User ask: "a modal that lists the tracks downloaded via watchlist" — extended,
as discussed, to playlists too. One modal, two tabs, opened from the Watchlist
page (watchlist tab preselected) and the Sync page (playlists tab) — same
shared-modal-different-entry-points UX as the rest of the app.
The data: library_history recorded which SERVICE a file came from but never
what TRIGGERED it. New origin/origin_context columns (migration + index) are
written once at the import chokepoint via core/downloads/origin.py, a pure
tested deriver that reads, in priority: an explicit _dl_origin stamp (set at
batch-task creation for direct playlist batches, where the playlist context
otherwise only survived in folder mode), the wishlist provenance already
riding in track_info.source_info (watchlist_artist_name / playlist_name —
watchlist_scanner has stamped these for ages), and the folder-mode playlist
thread. Manual downloads stay unclassified by design. History starts from
now — provenance can't be conjured retroactively.
API: GET /api/download-origins?origin=watchlist|playlist (paged) and POST
/api/download-origins/delete — deletes the file on disk (resolved through the
shared container/host path resolver), the matching library track row, and the
history entries; a file that refuses deletion keeps its row and reports the
error instead of lying.
UI: webui/static/origin-history.js — tabbed modal in the revamp design
language (accent light-edge, pill tabs, entry rows reusing the
library-history-entry components), per-row delete + select-all bulk delete
with honest result toasts, empty/loading states, per-tab totals.
Tests: 8 — deriver priority/shapes (incl. the exact watchlist_scanner
source_info shape and JSON-string survival), origin filtering + counts,
row fetch/delete isolation between origins, delete-track-by-path.
