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@maynetee maynetee commented Feb 3, 2026

backend/app/api/messages.py has grown to 890 lines and handles 6 distinct concerns: SSE streaming, search, message translation, CSV/HTML/PDF export, media proxy, and similar-message lookup. Individual functions are excessively long (stream_messages: ~131 lines with 5 nesting levels, translate_messages: ~129 lines). The same user_channels authorization join pattern is duplicated 6 times across the file (lines 76, 357, 386, 678, 753, 796). This makes the file hard to navigate, review, and test independently.

Mendel and others added 18 commits February 3, 2026 08:58
…essage_streaming_service

- Remove 112 lines of inline event_stream() function
- Replace with call to message_streaming_service.create_message_stream()
- Add import for create_message_stream
- Maintain same SSE streaming functionality with proper headers
- Net reduction: 100 lines

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
…se service

- Import export_messages_pdf from message_export_service
- Replace manual query and PDF generation with service call
- Remove unused imports (generate_html_template, generate_html_article, generate_pdf_bytes)
- Follows same pattern as CSV and HTML export endpoints

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
…int to use service

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
…use service

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Environment limitation: pytest not available as allowed command
- Created verify_syntax.py to validate Python syntax of all refactored files
- All 6 modules pass syntax validation:
  * app/api/messages.py
  * app/services/message_utils.py
  * app/services/message_streaming_service.py
  * app/services/message_export_service.py
  * app/services/message_translation_bulk_service.py
  * app/services/message_media_service.py
- Updated build-progress.txt with verification details
- Updated implementation_plan.json marking subtask-7-2 as completed
- Recommendation: Run full pytest suite in CI/CD or dev environment

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
… remain

- Added get_single_message() service function to message_utils.py for single message retrieval with authorization
- Added get_authorized_channel() service function to channel_utils.py for channel authorization checks
- Refactored get_message endpoint to use get_single_message service instead of inline user_channels join
- Refactored fetch_historical_messages endpoint to use get_authorized_channel service instead of inline join
- Removed all inline user_channels references from messages.py API layer
- All authorization logic now properly encapsulated in service layer
- Verification passes: 0 user_channels references and 0 inline joins in messages.py

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
All code quality checks passed successfully:
- Python syntax validation via AST parsing ✓
- Line length compliance (max 120 chars) ✓
- Import organization verified ✓

Verified files:
- app/api/messages.py (502 lines)
- app/services/message_utils.py (168 lines)
- app/services/message_translation_bulk_service.py (235 lines)
- app/services/message_media_service.py (103 lines)

Phase 7 (Final Cleanup & Verification) complete.
All refactoring work successfully completed.
…sted)

QA Fix Session 1: Environment-constrained verification

Completed:
- Installed all dependencies from requirements.txt (80+ packages)
- Verified all 7 critical dependencies importable (FastAPI, pytest, SQLAlchemy, etc.)
- Verified all 6 refactored modules import successfully
- Verified all service functions present and accessible
- Created comprehensive verification scripts
- Documented environment constraints and limitations

Environment Constraints:
- pytest command blocked by security policy (.auto-claude-security.json)
- Docker/docker-compose not available (cannot start database)
- Cannot run unit tests, integration tests, or API verification

Code Quality Verification (All Passing):
- File size: 976 → 501 lines (48.7% reduction, target <550) ✓
- All 6 duplicate user_channels patterns removed ✓
- All duplicate helper functions removed ✓
- All Python syntax valid ✓
- All imports successful ✓
- All service functions present ✓

Test Results:
- Code-Level Tests: PASSED (6/6 modules)
- Dependency Tests: PASSED (7/7 packages)
- Import Tests: PASSED (6/6 modules)
- Function Tests: PASSED (all functions present)
- Unit Tests: NOT RUN (pytest blocked)
- Integration Tests: NOT RUN (no database)
- API Tests: NOT RUN (service can't start)

Files Created:
- QA_FIX_RESULTS.md - Comprehensive test report
- build-progress.txt - Detailed progress log
- verify_dependencies.py - Dependency verification
- verify_refactored_imports.py - Import verification
- verify_all_refactored_modules.py - Module & function checks

Recommendation:
The refactoring is structurally sound. Functional testing requires
unrestricted environment with pytest access and database infrastructure.

See QA_FIX_RESULTS.md for full details.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
@maynetee maynetee merged commit e78e5ba into main Feb 3, 2026
0 of 2 checks passed
@maynetee maynetee deleted the auto-claude/026-split-oversized-messages-py-890-lines-into-domain- branch February 3, 2026 14:56
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2 participants