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redux-scraper/backlog/tasks/task-81.2 - Integrate-logging-into-TelegramBotTask-with-performance-metrics.md
2025-07-31 04:13:07 +00:00

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id, title, status, assignee, created_date, updated_date, labels, dependencies, parent_task_id
id title status assignee created_date updated_date labels dependencies parent_task_id
task-81.2 Integrate logging into TelegramBotTask with performance metrics Done
@myself
2025-07-31 2025-07-31
task-81

Description

Add comprehensive logging to the Telegram bot to record all interactions, performance metrics, and create audit records for each request

Acceptance Criteria

  • Bot creates TelegramBotLog record for each image request
  • Performance timing is captured for fingerprint computation
  • Performance timing is captured for similarity search
  • Request metadata (user info) is properly recorded
  • Response data is serialized and stored as JSON
  • 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.