Update task task-81.2

backlog/tasks/task-81.2 - Integrate-logging-into-TelegramBotTask-with-performance-metrics.md

@@ -1,7 +1,7 @@
 ---
 id: task-81.2
 title: Integrate logging into TelegramBotTask with performance metrics
-status: In Progress
+status: Done
 assignee:
   - '@myself'
 created_date: '2025-07-31'
@@ -25,3 +25,54 @@ Add comprehensive logging to the Telegram bot to record all interactions, perfor
 - [ ] Processed images are saved as BlobFiles and associated
 - [ ] Error cases are handled and logged appropriately
 - [ ] Logging has minimal performance impact on bot operations
+
+## Implementation Notes
+
+Successfully integrated comprehensive logging into TelegramBotTask with performance metrics and audit trail:
+
+CORE INTEGRATION:
+- Modified handle_message to create TelegramBotLog record for every image request
+- Replaced process_image_message with process_image_message_with_logging that returns [search_results, processed_blob] tuple
+- Added timing instrumentation for both fingerprint computation and similarity search operations
+- Integrated BlobFile creation and storage for all processed images
+
+LOGGING METHODS IMPLEMENTED:
+- create_telegram_log: Creates initial log record with user info and timestamp
+- update_telegram_log_success: Updates log with successful search results and response data
+- update_telegram_log_no_results: Updates log when no >90% matches found
+- update_telegram_log_invalid_image: Updates log for invalid/unsupported image formats
+- update_telegram_log_error: Updates log with error details and stack traces
+
+PERFORMANCE METRICS:
+- fingerprint_computation_time: Tracks time to generate image fingerprints
+- search_computation_time: Tracks time to find similar fingerprints
+- Both metrics logged in milliseconds with 3-decimal precision
+- Performance data logged to console and stored in database
+
+BLOB FILE STORAGE:
+- All processed images automatically saved as BlobFiles using existing deduplication
+- Content-type detection for PhotoSize (JPEG) vs Document (uses mime_type)
+- Proper cleanup of temporary files while preserving BlobFile storage
+- Foreign key association between TelegramBotLog and processed images
+
+ERROR HANDLING:
+- All error cases properly logged with appropriate status (error, invalid_image)
+- Error messages and exception class names stored for debugging
+- Failed operations still create audit records for complete trail
+
+RESPONSE DATA LOGGING:
+- Complete response text stored as JSON
+- Search result metadata including similarity percentages and post URLs
+- Threshold information and match counts for analytics
+- Structured data format for easy querying and analysis
+
+TECHNICAL IMPROVEMENTS:
+- Full Sorbet type safety maintained throughout integration
+- Proper tuple return types for multi-value returns
+- Case-based content type detection for different Telegram file types
+- Non-intrusive logging that doesn't affect bot performance or reliability
+
+FILES MODIFIED:
+- app/lib/tasks/telegram_bot_task.rb: Complete logging integration with 6 new methods and performance timing
+
+The bot now provides complete audit trail and performance monitoring for all visual search operations.