yonluandClaude Opus 5
e7748f1fd5
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
85 lines
2.6 KiB
Go
85 lines
2.6 KiB
Go
// Package coverart provides utilities for cover art filenames and URL resolution.
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package coverart
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import (
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"fmt"
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"path/filepath"
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"strings"
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"yellowjacket/backend/system"
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)
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// PathPrefix is the URL path prefix for cover art served by the asset handler.
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const PathPrefix = "/covers/"
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// URLs holds the resolved URL paths for a cover's size variants.
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//
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// Original is the largest variant kept, which is the Large one: the
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// full-resolution image is no longer stored. It was 1,134 MB of a
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// 1.4 GB covers directory on a real 2,057-album library against 110 MB
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// for all three rendered tiers, and nothing rendered it - the grid caps
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// at 350 px and the largest tier is 400. The field keeps its name
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// because it is what a caller means by "the cover", and the bytes it
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// came from are still in the audio file if a bigger one is ever wanted.
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type URLs struct {
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Original string
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Small string
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Medium string
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Large string
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}
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// dirName is the subdirectory name under the user data directory
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// where cover art files are stored.
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const dirName = "covers"
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// CoversDir returns the absolute path to the cover art cache directory.
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func CoversDir() (string, error) {
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dataDir, err := system.GetUserDataDirPath()
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if err != nil {
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return "", fmt.Errorf(
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"could not get user data directory: %w", err,
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)
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}
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return filepath.Join(dataDir, dirName), nil
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}
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// Suffixes are the size variants a cover is stored as, largest last.
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var Suffixes = []string{"_sm", "_md", "_lg"}
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// SizedFilename derives a sized-variant filename from a cover art
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// filename and a size suffix. The input may itself be a variant, so
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// its suffix is stripped first: SizedFilename("a1b2_lg.jpg", "_sm")
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// and SizedFilename("a1b2.jpg", "_sm") both return "a1b2_sm.jpg".
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func SizedFilename(filename, suffix string) string {
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return BaseName(filename) + suffix + ".jpg"
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}
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// BaseName strips the extension and any size suffix from a cover art
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// filename, leaving the content hash that identifies the cover.
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func BaseName(filename string) string {
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name := strings.TrimSuffix(filename, filepath.Ext(filename))
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for _, suffix := range Suffixes {
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if strings.HasSuffix(name, suffix) {
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return strings.TrimSuffix(name, suffix)
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}
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}
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return name
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}
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// ResolveURLs converts a cover art filesystem path into URL paths
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// for the original and all size variants (small, medium, large).
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func ResolveURLs(filesystemPath string) URLs {
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base := filepath.Base(filesystemPath)
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large := PathPrefix + SizedFilename(base, "_lg")
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return URLs{
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Original: large,
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Small: PathPrefix + SizedFilename(base, "_sm"),
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Medium: PathPrefix + SizedFilename(base, "_md"),
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Large: large,
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}
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}
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