version: '3.8'

services:
  # PostgreSQL Database
  postgres:
    image: postgres:17-alpine
    container_name: blog_postgres
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${DB_USER:-blog}
      POSTGRES_PASSWORD: ${DB_PASSWORD:-changeme}
      POSTGRES_DB: ${DB_NAME:-blog_prod}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    ports:
      - "127.0.0.1:5432:5432"  # Only expose to localhost
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USER:-blog}"]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      - blog_network

  # Redis Cache
  redis:
    image: redis:7-alpine
    container_name: blog_redis
    restart: unless-stopped
    command: redis-server --appendonly yes --requirepass ${REDIS_PASSWORD:-changeme}
    volumes:
      - redis_data:/data
    ports:
      - "127.0.0.1:6379:6379"  # Only expose to localhost
    healthcheck:
      test: ["CMD", "redis-cli", "--raw", "incr", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      - blog_network

  # NestJS Backend API
  api:
    build:
      context: ..
      dockerfile: deploy/Dockerfile
      target: backend-prod
    container_name: blog_api
    restart: unless-stopped
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    environment:
      NODE_ENV: production
      PORT: 3000
      DATABASE_URL: postgresql://${DB_USER:-blog}:${DB_PASSWORD:-changeme}@postgres:5432/${DB_NAME:-blog_prod}
      REDIS_URL: redis://:${REDIS_PASSWORD:-changeme}@redis:6379
      API_PORT: 3000
      LOG_LEVEL: ${LOG_LEVEL:-info}
    expose:
      - "3000"
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3000/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s
    networks:
      - blog_network
    volumes:
      - /var/log/blog:/app/logs  # Optional: mount logs to host

  # Next.js Frontend
  frontend:
    build:
      context: ..
      dockerfile: deploy/Dockerfile
      target: frontend-prod
    container_name: blog_frontend
    restart: unless-stopped
    environment:
      NODE_ENV: production
      NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-http://localhost/api}
    expose:
      - "3001"
    healthcheck:
      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:3001"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s
    networks:
      - blog_network

  # Nginx Reverse Proxy
  nginx:
    image: nginx:alpine
    container_name: blog_nginx
    restart: unless-stopped
    depends_on:
      - api
      - frontend
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
      - ./ssl:/etc/nginx/ssl:ro
      - nginx_cache:/var/cache/nginx
    networks:
      - blog_network
    healthcheck:
      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost/health"]
      interval: 30s
      timeout: 10s
      retries: 3

networks:
  blog_network:
    driver: bridge

volumes:
  postgres_data:
    driver: local
  redis_data:
    driver: local
  nginx_cache:
    driver: local