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Changelog

All notable changes to the Hoffbot project will be documented in this file.

[2.0.0] - 2024-09-28

🚀 Major Stability Improvements

Added

  • Enhanced Error Handling: Comprehensive try-catch blocks and graceful error recovery
  • Retry Logic: Automatic retries with exponential backoff for API calls and critical operations
  • Rate Limiting: Built-in rate limiter to prevent API abuse (30 requests/minute)
  • Health Monitoring: HTTP health check server on port 3001 with endpoints:
    • /health - Comprehensive health status
    • /ping - Simple availability check
    • /metrics - System performance metrics
  • Process Monitoring: Automatic restart on crashes with configurable limits
  • Graceful Shutdown: Proper cleanup of resources on SIGTERM/SIGINT
  • Enhanced Logging: Structured logging with timestamps and log levels
  • Database Improvements:
    • Better connection management
    • Improved schema with indexes
    • Transaction safety with rollback support
  • Production Deployment:
    • Systemd service configuration
    • Automated deployment script
    • Docker support
  • Monitoring Scripts: Process monitor with exponential backoff restart logic

Changed

  • Cron Job Error Handling: Jobs now catch and log errors without crashing the main process
  • File Operations: Added validation and fallback content for missing files
  • API Polling: Increased polling interval from 100ms to 1000ms to reduce load
  • Database Schema: Enhanced with auto-increment IDs, timestamps, and indexes
  • Memory Management: Better resource cleanup and monitoring

Fixed

  • Crash Prevention: Bot no longer crashes on network failures or API errors
  • Memory Leaks: Proper cleanup of event listeners and database connections
  • Race Conditions: Better handling of concurrent operations
  • File System Errors: Robust handling of missing or corrupted resource files
  • API Rate Limits: Built-in throttling prevents hitting Bluesky API limits

Security

  • Environment Variables: Better validation of required configuration
  • Process Isolation: Systemd service runs with restricted permissions
  • Error Exposure: Sensitive information no longer logged in production

📊 Performance Improvements

  • Reduced memory usage through better resource management
  • Faster startup with optimized initialization sequence
  • Improved database query performance with indexes
  • More efficient image and quote selection algorithms

🛠️ Developer Experience

  • TypeScript compilation checking
  • Code formatting with Prettier
  • Enhanced debugging with structured logs
  • Comprehensive health monitoring
  • Better development vs production configuration

📦 New Scripts

  • npm run start:monitor - Start with process monitoring
  • npm run health - Check bot health status
  • npm run logs:clean - Clean old log files
  • npm run check:types - TypeScript compilation check
  • npm run format - Format code with Prettier

[1.x.x] - Previous Versions

Features

  • Daily Hoff posts at 10 AM
  • Mention monitoring and liking
  • Auto follow-back functionality
  • Basic SQLite database for interaction tracking
  • Cron-based scheduling

Known Issues (Fixed in 2.0.0)

  • Occasional crashes on network failures
  • No automatic restart mechanism
  • Limited error logging
  • No health monitoring
  • Rate limit violations
  • Memory leaks over time