version: '3.8'

services:
  # Redis Cache Cluster
  redis:
    image: redis:7-alpine
    container_name: ku-redis
    ports:
      - "6379:6379"
    command: >
      redis-server
      --maxmemory 2gb
      --maxmemory-policy allkeys-lru
      --save ""
      --appendonly no
    volumes:
      - redis-data:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 3s
      retries: 3
    networks:
      - ku-network

  # Knowledge Universe API
  api:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: ku-api
    ports:
      - "8000:8000"
      - "9090:9090"  # Metrics
    environment:
      # Redis Configuration
      - REDIS_HOST=redis
      - REDIS_PORT=6379
      - REDIS_DB=0
      
      # Cache Settings
      - CACHE_TTL_REQUEST=14400
      - CACHE_TTL_SOURCE=43200
      - MAX_CACHE_MEMORY_GB=2
      
      # Crawler Settings
      - CRAWLER_TIMEOUT=8
      - CRAWLERS_PARALLEL=5
      
      # API Keys (load from .env file)
      - GITHUB_TOKEN=${GITHUB_TOKEN}
      - YOUTUBE_API_KEY=${YOUTUBE_API_KEY}
      - KAGGLE_USERNAME=${KAGGLE_USERNAME}
      - KAGGLE_KEY=${KAGGLE_KEY}
      
      # Application Settings
      - DEBUG=false
      - LOG_LEVEL=INFO
      - ENABLE_METRICS=true
    depends_on:
      redis:
        condition: service_healthy
    volumes:
      - ./logs:/app/logs
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s
    restart: unless-stopped
    networks:
      - ku-network

  # Prometheus (Optional - for monitoring)
  prometheus:
    image: prom/prometheus:latest
    container_name: ku-prometheus
    ports:
      - "9091:9090"
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus-data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
    networks:
      - ku-network
    profiles:
      - monitoring

  # Grafana (Optional - for dashboards)
  grafana:
    image: grafana/grafana:latest
    container_name: ku-grafana
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=admin
    volumes:
      - grafana-data:/var/lib/grafana
    depends_on:
      - prometheus
    networks:
      - ku-network
    profiles:
      - monitoring

volumes:
  redis-data:
  prometheus-data:
  grafana-data:

networks:
  ku-network:
    driver: bridge