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music_library/backlog/completed/ml-64 - Split-ScrobbleActivity-into-focused-modules.md
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2026-05-04 21:22:27 +01:00

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---
id: ML-64
title: Split ScrobbleActivity into focused modules
status: Done
assignee: []
created_date: "2026-04-20 08:54"
labels: []
dependencies: []
references:
- "https://github.com/cloud8421/music_library/issues/111"
priority: low
---
## Description
<!-- SECTION:DESCRIPTION:BEGIN -->
_GitHub: created 2026-03-12 · updated 2026-03-12 · closed 2026-03-12_
## Problem
`MusicLibrary.ScrobbleActivity` bundles three distinct responsibilities: (1) scrobbling to Last.fm, (2) track CRUD and listing, (3) data quality diagnostics. The track listing query is nearly identical to `ListeningStats.recent_activity/2`.
## Proposed solution (Option A)
1. Move track CRUD + listing into `ListeningStats`
2. Keep `ScrobbleActivity` focused on writes (scrobbling releases/mediums/tracks)
3. Move diagnostics to `Maintenance`
## Files involved
- `lib/music_library/scrobble_activity.ex`
- `lib/music_library/listening_stats.ex`
- `lib/music_library/maintenance.ex`
- `lib/music_library_web/live/scrobbled_tracks_live/index.ex`
- `lib/music_library_web/live/maintenance_live/index.ex`
- Tests for all of the above
<!-- SECTION:DESCRIPTION:END -->