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yonluandClaude Opus 5 e7748f1fd5 feat(database): shape the library like files, and shrink the catalog
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Plans 013 and 014, the album page that prompted them, and the smaller
fixes they turned up. Changelog, largest first.

## The local library is shaped like files, not like MusicBrainz

`audio_files` carries its own tags and points at `albums` and
`artists`; `file_genres` is the one real many-to-many. `recordings`,
`release_group_recordings`, `artist_credit`, `artist_credit_artist`,
`recording_genres`, `release_groups` and `release_to_rg` are gone from
the local side, and with them a six-way join in every read, a
`MIN(release_group_id)` subquery in eleven queries and a
first-credited-artist subquery in nine. Measured on a real 25,966-file
library, every many-to-many that model expressed was 1:1 in the data.

- Ownership is a file. `GetFilePathsByRecordingMBIDs`,
  `LibraryMBIDIndex.CheckMBIDs`, `collectLibraryEntities` and
  `pruneStaleLocalCrossReferences` all join `audio_files`, so the 812
  orphaned recordings, 216 release groups and 260 artists that library
  carried are now structurally impossible.
- One projection: every track query selects from the `track_metadata`
  view, one row type, one mapper. Nine hand-rolled copies had drifted
  far enough to report different years on different screens.
- `library_id = 0` means every library, so each list query exists once
  instead of scoped and unscoped with a branch at every call site.
- No migration chain. `sql/schemas/` is the one description of the
  shape; `sql/migrations/`, `applyMigrations` and `schema_migrations`
  are squashed away, along with the drift between them that had sqlc
  generating against a stale schema.
- `database.InsertTestTrack` is the one test seeder; twenty test files
  had been assembling the old FK chain each in its own order.

## The catalog stores its ids as bytes

`explore_index`'s three 36-char MBID columns and its entity-type text
are 16 raw bytes and a small integer. The table and its six indexes go
780 MB to 405 MB on a real 2,052,200-row catalog, which is why a fresh
install is ~0.6 GB rather than ~1.0 GB.

- `backend/explore/mbid.go` is the only place the encoding is known;
  everything above it speaks dashed strings.
- `CHECK(length(mbid) = 16)` makes a stringly write fail at the insert
  rather than silently returning no rows, since SQLite does not coerce
  between TEXT and BLOB.
- The importer asks the artifact what encoding it carries and converts
  on the way in, so the artifact already published keeps working and no
  format bump is needed.
- `indexRowColumns`/`scanIndexRow` replace four copies of a 22-column
  list, and `TestStoredEncodingRoundTrips` sweeps every read path.

## An album page that says how much of the album is yours

- One question, asked once: is there a file. `filePaths` is filled by a
  single batched lookup when the tracklist settles, and the badge, the
  Play count, the dimmed rows and every menu item read it — replacing
  four claims of decreasing confidence that could show a green tick on
  an album whose every action did nothing.
- Play, Play 7 of 12, or no play button at all.
- `total_tracks` on `explore_index` (~2 bytes over 400,677 release
  groups) and on `audio_files` from tags that have always carried it:
  a complete MBID-matched album now makes no catalog call at all, where
  it used to spend the most expensive request the app makes.
- A merged cluster shows the running order the most releases agree on,
  and the version list marks the release you own rather than standing a
  synthetic entry in for it.
- `AlbumReleasesFailed`: a slow fetch is no longer reported as a failed
  one by a 12-second timer.
- Rows not in the library are dimmed in place (with `aria-disabled`)
  instead of the owned ones wearing a green tick and a legend.

## Caches and cover art get ceilings

- Only the three tiers of a cover are stored; the full-resolution copy
  nothing rendered was 1,134 MB of a 1.4 GB covers directory.
- One artist portrait is downloaded and the rest are remembered as
  URLs — 4.1 GB of a 5.3 GB cache was candidates no code path reads.
- `browsedArtBudget` and `httpCacheBudget` bound what an age cannot:
  the same install held art for 5,770 artists in a 1,301-artist
  library.
- `OrphanedArtistImagesJob` joined a bare MBID onto a sharded
  directory, so it deleted the rows that were the only record of the
  files it left behind. `explore.ArtistImageDir` is that layout's one
  definition now.

## The autotag queue asks whether there is work

`tagging_items` was a row per album folder, not a queue, and no query
read the `tag_status` column that held the answer. The four queue
queries ask the files, which matters most where it is least visible:
`startPrefetch` was scoring every album in a tagged library against
MusicBrainz.

## Phantom playlist tracks resolve in place

An M3U8 imported before its files leaves phantom rows; they now match
by path and fall back to position, keep their place in the playlist
when resolved, and pair best-first so two phantoms cannot claim the
same file.

## Playing a track plays the list it is in

Double-click, and Play on a single row's menu, queue the list as
displayed with `startIndex` on that row — the album page and the track
list used to queue one track and discard the album around it. A
multi-row selection still plays exactly itself.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AfVYUVExXsx1nSWrXN8mAh
2026-08-16 13:58:15 -04:00
logan 254646da5e fix(a11y): mark the playing row with a shape, not only a colour
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a11y.22, WCAG 1.4.1: `.track-row.active` was a background tint and a
text colour, and the row markup carried no aria-current either — so a
colour-blind user could not find the playing row and AT had no signal
at all. The queue panel had aria-current from Phase 1 and the same
colour-only visual.

A triangle drawn in each row's own left padding by `::before`. It is a
shape that is present or absent, and it costs no layout: track-list's
grid columns are computed from the host width, so a marker in the flow
would move every cell on the playing row and nothing else.

Both directions are asserted in both tiers. A marker that renders on
every row satisfies "the playing row has one" for free, which is this
plan's oldest rule.

And one thing the reproduction found: a track started from the *list*
leaves the queue's currentIndex at -1, so the panel has no current row
in that flow at all. Pre-existing, and the reason this looked broken
the first time it was checked in the running app.
2026-08-13 02:14:55 -04:00
logan 2b41c27616 fix(a11y): let a clipped value be read, and name a row's own buttons
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a11y.24: `text-overflow: ellipsis` in 40+ places, and the four
highest-density lists were the ones with no `title` — the queue panel
(whose width is user-resizable down to MIN_WIDTH), track-info, every
track-list cell, and the playlist sidebar.

In track-list the attribute is on the *cell*, not on what is inside it:
the value may be a link, a highlighted search match or plain text, and
a tooltip is inherited by descendants either way. One binding rather
than three, and the same value the accessor already computed.

a11y.32: every queue row's remove button was named "Remove from queue",
so a list whose entire purpose is which track is where had four
identically named controls.
2026-08-13 01:55:17 -04:00
logan 1ed4167634 feat(a11y): give the context menu a keyboard, and the app a voice
The context menu was the only route to Play, Add to Queue, Play Next,
Add to Playlist, Favourite and Track Details, and it opened on
right-click alone: the panel had no role=menu, so its six menuitems were
orphaned, nothing moved focus into it, and nothing handled arrows or
Escape (a11y.3). Phase 1 deferred this deliberately so it would land
with the dialogs, as one focus-management implementation.

MenuKeyboard is that model. It is standalone rather than part of
ContextMenuController because playlist-view renders a menu without the
controller, and the only thing worse than a menu with no keyboard model
is two menus with two of them. Shift+F10 and the ContextMenu key open it
from a focused row, anchored to that row, and focus returns there.

Three lists had no focused row to open it from, so they gained a roving
tab stop (utils/roving-rows.ts, written once rather than three times).
track-list keeps its own: it predates this, carries selection semantics
the other three do not have, and is pinned by its own tests.

Also the ARIA tail this is one story with: aria-sort on the column
headers (role=columnheader arrived in Phase 1 without it), listbox and
option on the four selectable grids — aria-selected on role=button is
invalid and was being dropped, so the state the whole ctrl/shift
interaction exists to produce was invisible — and live regions on the
four async surfaces that changed in silence.

Two things a reproduction taught that reading could not: the
wa-dropdown-items have not set their role when the host's updateComplete
resolves, so querying by role then finds nothing and the menu opens
without taking focus; and focus() on a popup that has not positioned
itself is a silent no-op.
2026-08-12 11:07:34 -04:00