Adopts ListenBrainz-inspired patterns to speed up imports from ~24h to
under 30 minutes for 49k scrobbles.
Phase 1 - track_lookup cache table:
- New migration (000006) adds persistent entity lookup cache
- Maps normalized (artist, track, album) → (artist_id, album_id, track_id)
- SubmitListen fast path: cache hit skips 18 DB queries → 2 queries
- Cache populated after entity resolution, invalidated on merge/delete
- Benefits both live scrobbles and imports
Phase 2 - SaveListensBatch:
- New batch listen insert using pgx CopyFrom → temp table → INSERT ON CONFLICT
- Thousands of inserts per second vs one-at-a-time
Phase 3 - BulkSubmitter:
- Reusable import accelerator for all importers
- Pre-deduplicates scrobbles by (artist, track, album) in memory
- Worker pool (4 goroutines) for parallel entity creation on cache miss
- Batch listen insertion via SaveListensBatch
Phase 4 - Migrate importers:
- Maloja, Spotify, LastFM, ListenBrainz importers use BulkSubmitter
- Koito importer left as-is (already fast with pre-resolved IDs)
Phase 5 - Skip image lookups during import:
- GetArtistImage/GetAlbumImage calls fully skipped when SkipCacheImage=true
- Background tasks (FetchMissingArtistImages/FetchMissingAlbumImages) backfill
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: search/merge items by id
* feat: update track duration using musicbrainz
* chore: changelog
* fix: make username updates case insensitive
* feat: add minutes listened to ui and fix image drop
* chore: changelog
* fix: embed db migrations (#37)
* feat: Add support for ARM in publish workflow (#51)
* chore: changelog
* docs: search by id and custom theme support
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Co-authored-by: potatoattack <lvl70nub@gmail.com>
Co-authored-by: Benjamin Jonard <benjaminjonard@users.noreply.github.com>
