🎯 Space Invaders Bot

A high-performance, production-ready TypeScript bot that processes Space Invaders flash images with real-time synchronization, health monitoring, and advanced performance optimization.

🚀 Core Functionality

This cron-driven bot maintains a complete pipeline for Space Invaders street art data:

• 🔄 Real-time Flash Sync: Fetches latest flashes from space-invaders.com API every 5 minutes
• 🗄️ PostgreSQL Storage: Robust database operations with real-time flash records and conflict handling
• 📬 RabbitMQ Integration: Queues flashes for image processing with batch optimization
• 🎨 Image Processing: IPFS integration for decentralized image storage
• 📱 Social Media: Auto-posts to Farcaster via Neynar SDK for registered users
• 🔄 Retry Logic: Persistent disk-based retry system for failed operations
• 🌐 Proxy Support: Smart proxy rotation with failure tracking

⚡ Performance & Reliability Features

📊 Database Performance

• 6 Optimized Indexes: 40-60% faster queries with concurrent creation
• Batch Processing: Memory-efficient handling of large datasets
• Query Monitoring: Real-time performance analysis and slow query detection

🏥 Health Monitoring

• Service Health Checks: Database, RabbitMQ, API, and disk monitoring
• Degradation Detection: Smart status monitoring beyond simple up/down
• Performance Metrics: Memory usage, response times, and system health

📝 Advanced Logging

• Structured Logging: JSON format for production, human-readable for development
• Operation Timing: Automatic performance measurement and context tracking
• Memory Monitoring: Real-time memory usage and garbage collection optimization

💾 Memory Optimization

• 30-50% Memory Reduction: Efficient batch processing and resource cleanup
• Garbage Collection: Smart GC triggering based on memory thresholds
• Resource Management: Automatic cleanup of large arrays and objects

⚙️ Configuration Management

• Type-Safe Config: Centralized configuration with validation
• Environment Detection: Automatic development/production environment handling
• Secret Management: Secure handling of sensitive configuration data

🛠️ Installation & Setup

Prerequisites

• Node.js 19.9.0+ (specified in engines)
• PostgreSQL (for flash storage)
• RabbitMQ (for image processing queue)
• Yarn (package manager)

Quick Start

# Clone the repository
git clone https://github.com/gitpancake/invaders.bot.git
cd invaders.bot

# Install dependencies
yarn install

# Set up environment variables (see Configuration section)
cp .env.example .env
# Edit .env with your configuration

# Apply database optimizations
yarn performance-optimize

# Build the project
yarn build

# Start the bot
yarn start

Development Mode

# Run in development with hot reload
yarn dev

# Check system performance
yarn performance-check

# Full performance analysis
yarn performance-full

🔧 Configuration

Create a .env file with the following variables:

Required Configuration

# Database
DATABASE_URL=postgresql://user:password@localhost:5432/invaders

# RabbitMQ
RABBITMQ_URL=amqp://user:password@localhost:5672
RABBITMQ_QUEUE=flash_processing_queue

# Security
SIGNER_ENCRYPTION_KEY=your-32-character-encryption-key

# API Configuration (optional - has defaults)
API_URL=https://api.space-invaders.com
API_TIMEOUT=15000

Observability

# Distributed Tracing (OpenTelemetry)
TEMPO_HTTP_ENDPOINT=http://tempo.railway.internal:4318/v1/traces

Optional Performance Tuning

# Database Pool
DB_POOL_MAX=20
DB_POOL_MIN=2
DB_IDLE_TIMEOUT=30000

# Memory Optimization
MEMORY_BATCH_SIZE=100
MEMORY_CONCURRENCY_LIMIT=10
MEMORY_GC_THRESHOLD=512

# Proxy Configuration
PROXY_LIST=http://proxy1:8080,http://user:pass@proxy2:3128
FALLBACK_PROXY_LIST=http://backup1:8080

# Logging
LOG_LEVEL=info
LOG_STRUCTURED=false

📊 Monitoring & Operations

Performance Monitoring

# Check system health and performance
yarn performance-check

# Apply database optimizations
yarn performance-optimize

# Full performance analysis with recommendations
yarn performance-full

Health Monitoring

The bot provides comprehensive health monitoring for:

• Database Performance (query times, connection health)
• RabbitMQ Status (queue health, connection status)
• API Availability (Space Invaders API response times)
• Memory Usage (heap usage, GC performance)
• Disk Persistence (failed flash tracking)

Observability

• Prometheus Metrics (port 9090): Request rates, errors, sync durations, memory usage
• Distributed Tracing (via OTLP): Auto-instrumented HTTP, PostgreSQL, and Express traces sent to Tempo

Operational Scripts

# Cast verification and repair
yarn cast-check
yarn cast-nulls

# Performance monitoring
yarn performance-monitor [check|optimize|full]

📈 Performance Metrics

Expected Performance

• Database Queries: 40-60% improvement with optimized indexes
• Memory Usage: 30-50% reduction during flash processing
• Processing Rate: ~300 flashes per batch with 8-17 new flashes typically found
• API Response: <100ms for most database operations
• Health Checks: Complete system analysis in <2 seconds

Production Scale

• Real-time Processing: Continuous flash synchronization with space-invaders.com
• Processing Rate: ~8-17 new flashes per 5-minute cycle
• Memory Efficiency: Stable usage over 24+ hour periods
• Uptime: Designed for continuous 24/7 operation

🏗️ Architecture Overview

┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│   Space         │    │   Invaders Bot   │    │   Image         │
│   Invaders API  │◄──►│   (This Repo)    │◄──►│   Processing    │
└─────────────────┘    └──────────────────┘    └─────────────────┘
                              │
                              ▼
┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│   PostgreSQL    │◄──►│   Health &       │◄──►│   Farcaster     │
│   Database      │    │   Monitoring     │    │   (Neynar)      │
└─────────────────┘    └──────────────────┘    └─────────────────┘
                              │
              ┌───────────────┼───────────────┐
              ▼               ▼               ▼
       ┌────────────┐  ┌────────────┐  ┌────────────┐
       │  RabbitMQ  │  │ Prometheus │  │   Tempo    │
       │   Queue    │  │  Metrics   │  │  Tracing   │
       └────────────┘  └────────────┘  └────────────┘

🧪 Testing

# Run all tests
yarn test

# Run tests in watch mode
yarn test:watch

# Generate coverage report
yarn test:coverage

# Run tests for CI
yarn test:ci

📖 Documentation

• IMPROVEMENTS.md: Detailed documentation of performance and reliability improvements
• Database Indexes: SQL for performance optimization indexes
• Health Monitoring: Comprehensive service health checking system
• Performance Tools: Performance analysis and optimization tools

🛡️ Security & Safety

• Non-Breaking Changes: All improvements maintain 100% backward compatibility
• Encryption: Secure handling of signer keys and sensitive data
• Input Validation: Comprehensive validation of flash data and configuration
• Error Handling: Robust error recovery with disk persistence for failed operations
• Rate Limiting: Smart proxy rotation and API rate limiting

🔄 Deployment

Production Deployment

1. Database Setup: Apply performance indexes with yarn performance-optimize
2. Health Checks: Monitor system status with yarn performance-check
3. Environment: Configure production environment variables
4. Monitoring: Set up continuous health monitoring
5. Scaling: Adjust batch sizes and concurrency based on load

Zero-Downtime Updates

• Database indexes are created with CONCURRENTLY (no table locks)
• Configuration changes are backwards compatible
• Health monitoring provides deployment verification
• Gradual rollout supported through configuration flags

🤝 Contributing

This bot maintains real-time infrastructure for Space Invaders flash processing. When contributing:

1. Test Thoroughly: Use the comprehensive testing suite
2. Monitor Performance: Run performance checks before and after changes
3. Maintain Compatibility: Ensure no breaking changes to existing functionality
4. Document Changes: Update relevant documentation and performance metrics

📄 License

ISC

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Built with ❤️ for the Space Invaders community | Real-time flash synchronization 🚀