- Created src/server/utils/media.py with reusable media file functions
- Functions: check_media_files(), get_media_file_paths(), has_all_images(), count_video_files(), has_video_files()
- Defined standard filename constants: POSTER_FILENAME, LOGO_FILENAME, FANART_FILENAME, NFO_FILENAME
- Defined VIDEO_EXTENSIONS set for media player compatibility
- Refactored src/server/api/nfo.py (7 locations) to use utility functions
- Refactored src/server/services/background_loader_service.py to use utility
- Functions accept both str and Path for compatibility
- Marked Code Duplications 1, 3, 4 as RESOLVED in instructions.md
- Updated Further Considerations as RESOLVED (addressed in Issues 7, 9, 10)
- Analyzed error handling - found complete exception hierarchy already exists
- Confirmed global exception handlers registered and working
- Documented dual error handling pattern in ARCHITECTURE.md section 4.5:
* HTTPException for simple validation and HTTP-level errors
* Custom AniWorldAPIException for business logic with rich context
- Clarified when to use each type with examples
- Finding: Error handling was already well-structured, just needed documentation
Architecture Decision: Dual pattern is intentional and correct.
Tests passing (auth flow verified)
- Added 5 new service methods for complete database coverage:
* get_series_without_nfo()
* count_all()
* count_with_nfo()
* count_with_tmdb_id()
* count_with_tvdb_id()
- Eliminated all direct database queries from business logic:
* series_manager_service.py - now uses AnimeSeriesService
* anime_service.py - now uses service layer methods
- Documented architecture decision in ARCHITECTURE.md:
* Service layer IS the repository layer
* No direct SQLAlchemy queries allowed outside service layer
- All database access must go through service methods
- 1449 tests passing, repository pattern enforced
- SeriesApp now passes skip_load=True to SerieList
- Prevents redundant data file loading on every startup
- Series loaded once during setup via sync_series_from_data_files()
- Removed obsolete _init_list_sync() and _init_list() methods
- Updated documentation in ARCHITECTURE.md and README.md
- Add WebSocket shutdown() with client notification and graceful close
- Enhance download service stop() with pending state persistence
- Expand FastAPI lifespan shutdown with proper cleanup sequence
- Add SQLite WAL checkpoint before database close
- Update stop_server.sh to use SIGTERM with timeout fallback
- Configure uvicorn timeout_graceful_shutdown=30s
- Update ARCHITECTURE.md with shutdown documentation
