yellowjacket/.planning/phases/12-library-crud-data-integrity/12-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
12-library-crud-data-integrity	02	ui	lit wails library-management config-page sidebar folder-picker toast overflow-menu	phase provides 12-library-crud-data-integrity AddLibrary, RenameLibrary, RemoveLibrary, GetRemovalImpact backend API, LibraryAdded/Renamed/Removed events phase provides 11-per-library-scan-pipeline ScanLibrary, ScanAllLibraries, scan queue coordinator, per-library progress events	Full library management UI in settings page (list, add, rename, remove with confirmation + toast) Selectable library checkboxes for targeted scanning Inline per-library progress bar during scan Collapsible config sections Sidebar cleaned up (no Libraries nav item)	13-library-views-phantom-tracks	added patterns Checkbox selection model for multi-library scan targeting Inline progress bar per library row during scan Collapsible config-section with chevron dropdown Overflow menu with document click dismiss Toast notification with auto-dismiss timer	created modified frontend/src/components/config-page/config-page.ts frontend/src/components/config-page/config-section.ts frontend/src/components/sidebar/app-sidebar.ts frontend/index.ts frontend/src/store/library-store.ts backend/library/crud.go backend/library/metrics.go backend/library/query.go backend/library/rescan.go backend/library/scan_queue.go	Selectable library checkboxes — user selects which libraries to scan instead of scan-all-or-nothing Scan buttons above library list with selection count indicator Inline progress bar per library row — replaces global-only progress Collapsible config sections with chevron dropdown — keeps settings page organized 8-second toast auto-dismiss timer for removal summaries Library store invalidation on LibraryRemoved event to refresh all views	Checkbox selection model: Set<number> with select-all/indeterminate header Collapsible config-section component with chevron toggle	LIB-01 LIB-02 LIB-03 LIB-06	38min	2026-03-15

Phase 12 Plan 02: Frontend Library Management UI Summary

Full library management UI in settings with add/rename/remove, selectable scan targeting, inline per-library progress bars, and collapsible config sections

Performance

• Duration: 38 min (execution across previous session + finalization)
• Started: 2026-03-15T13:43:37Z
• Completed: 2026-03-15T14:21:35Z
• Tasks: 3 (2 auto + 1 human-verify checkpoint)
• Files modified: 19

Accomplishments

• Library management UI in settings page: list with name, path, track count per library; Add Library with folder picker; inline rename with Enter/Escape; overflow menu (Rename, Rescan, Remove); removal confirmation dialog with real impact counts; toast notification with removal summary
• Selectable library checkboxes with select-all/indeterminate header for targeted scan operations
• Inline scan progress bar per library row showing phase and percentage
• Collapsible config-section component with chevron dropdown for all settings sections
• Sidebar "Libraries" nav item removed; library-manager component import removed from router
• Library store invalidated on LibraryRemoved event to refresh all data views

Task Commits

Tasks were committed atomically with extensive follow-up refinements:

1. Task 1: Replace config-page library section with library management UI — ffc5d96 (feat) + 20 follow-up fix/feat/perf commits
2. Task 2: Remove Libraries sidebar nav item and view routing — e199712 (feat)
3. Task 3: Verify library management UI end-to-end — Human verified ✅ (all 9 checks passed)

Key follow-up commits:

• 13a42ae feat: selectable library list with checkbox scan targeting
• df824c6 feat: show scan progress bar inline in library list entry
• 12c6782 feat: make config sections collapsible with chevron dropdown
• 890284d fix: delete artist_credit_artist before artist_credit in removal pipeline
• 30f4461 perf: skip FTS5 rebuild during library removal
• 21ea71e perf: increase scan batch size from 50 to 300
• b093fbb fix: invalidate library store cache on LibraryRemoved event

Full commit list (25 commits): ffc5d96..12c6782

Files Created/Modified

• frontend/src/components/config-page/config-page.ts — Full library management UI with CRUD, selection, progress, toast, overflow menus
• frontend/src/components/config-page/config-section.ts — Collapsible section component with chevron toggle
• frontend/src/components/sidebar/app-sidebar.ts — Removed 'libraries' from View type and nav items
• frontend/index.ts — Removed library-manager import and routing case
• frontend/src/store/library-store.ts — Added LibraryRemoved invalidation handler
• backend/library/crud.go — Bug fixes in orphan cleanup ordering
• backend/library/metrics.go — ScanWarning.Err serialized as string
• backend/library/query.go — GetAllLibrariesWithTrackCounts binding
• backend/library/rescan.go — Scan batch size increase, soft scan optimization
• backend/library/scan_queue.go — Wait for scan stop before removal
• frontend/wailsjs/go/library/Library.d.ts — Regenerated bindings
• frontend/wailsjs/go/library/Library.js — Regenerated bindings
• frontend/wailsjs/go/models.ts — Regenerated model types

Decisions Made

• Selectable library checkboxes: Added a Set selection model with select-all/indeterminate header checkbox. Users select specific libraries before clicking Scan, rather than scan-all-or-nothing. Selection count shown on button.
• Scan buttons above library list: Moved scan actions (Add Library, Scan, Full Rescan, Pause, Cancel) above the library list instead of below, with none selected by default.
• Inline progress bar per library row: Each library row shows its scan phase and progress percentage inline, replacing the global-only progress indicator.
• Collapsible config sections: All config-section elements now collapse with a chevron dropdown, keeping the settings page organized as it grows.
• 8-second toast timer: Toast auto-dismisses after 8 seconds (longer than typical 4s) since removal summaries contain important information.
• Library store invalidation on LibraryRemoved: Ensures all data views (tracks, albums, artists, genres) refresh after library removal.

Deviations from Plan

Auto-fixed Issues

1. [Rule 1 - Bug] Fixed orphan cleanup FK ordering

• Found during: Task 1 refinement
• Issue: artist_credit_artist rows must be deleted before artist_credit rows (FK constraint)
• Fix: Reordered DELETE statements in removal pipeline
• Files modified: backend/library/crud.go
• Committed in: 890284d

2. [Rule 1 - Bug] ScanWarning.Err serialized as error interface

• Found during: Task 1 refinement
• Issue: Go error interface doesn't serialize to JSON string — frontend got empty object
• Fix: Serialize Err field as string in ScanWarning
• Files modified: backend/library/metrics.go
• Committed in: ac8cbb3

3. [Rule 1 - Bug] Library store not invalidated on LibraryRemoved

• Found during: Task 1 refinement
• Issue: Removing a library left stale tracks/albums/artists in library store cache
• Fix: Added LibraryRemoved event listener to library store that triggers full invalidation
• Files modified: frontend/src/store/library-store.ts
• Committed in: b093fbb

4. [Rule 2 - Missing Critical] Phantom tracks from empty library root

• Found during: Task 1 verification
• Issue: TOML cleanup left empty DirectoryPath, causing all tracks to appear as phantom
• Fix: Resolved empty library root detection and cleanup
• Files modified: backend/library/crud.go
• Committed in: 717e249

5. [Rule 3 - Blocking] Replaced removed Scan() import

• Found during: Task 2
• Issue: Removing library-manager import broke a reference to deleted Scan() method
• Fix: Replaced with ScanAllLibraries() call
• Files modified: frontend/index.ts
• Committed in: 0559822

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Total deviations: 5 auto-fixed (3 bugs, 1 missing critical, 1 blocking) Impact on plan: All auto-fixes necessary for correctness. No scope creep. Additional features (selectable scanning, inline progress, collapsible sections) were discovered needs during verification.

Issues Encountered

None — all issues were resolved through iterative refinement.

User Setup Required

None — no external service configuration required.

Next Phase Readiness

• Phase 12 complete — all library CRUD backend and frontend implemented
• Ready for Phase 13: Library Views & Phantom Tracks
• All library management operations verified end-to-end through human checkpoint
• Library store properly invalidates on CRUD events, ready for filtered views

Self-Check: PASSED

All key files verified present on disk, all referenced commits verified in git log.

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Phase: 12-library-crud-data-integrity Completed: 2026-03-15