services:
  # --- Redis ---
  redis:
    image: redis:7-alpine
    volumes:
      - redis_data:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 3s
      retries: 5
    restart: always

  # --- Flask Backend ---
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    env_file:
      - .env
    environment:
      - FLASK_ENV=production
      - REDIS_URL=redis://redis:6379/0
      - CELERY_BROKER_URL=redis://redis:6379/0
      - CELERY_RESULT_BACKEND=redis://redis:6379/1
    volumes:
      - upload_data:/tmp/uploads
      - output_data:/tmp/outputs
      - db_data:/app/data
    depends_on:
      redis:
        condition: service_healthy
    restart: always

  # --- Celery Worker ---
  celery_worker:
    build:
      context: ./backend
      dockerfile: Dockerfile
    command: >
      celery -A celery_worker.celery worker
      --loglevel=warning
      --concurrency=4
      -Q default,convert,compress,image,video,pdf_tools,flowchart
    env_file:
      - .env
    environment:
      - FLASK_ENV=production
      - REDIS_URL=redis://redis:6379/0
      - CELERY_BROKER_URL=redis://redis:6379/0
      - CELERY_RESULT_BACKEND=redis://redis:6379/1
    volumes:
      - upload_data:/tmp/uploads
      - output_data:/tmp/outputs
      - db_data:/app/data
    depends_on:
      redis:
        condition: service_healthy
    restart: always

  # --- Celery Beat (Scheduled Tasks) ---
  celery_beat:
    build:
      context: ./backend
      dockerfile: Dockerfile
    command: >
      celery -A celery_worker.celery beat
      --loglevel=warning
    env_file:
      - .env
    environment:
      - FLASK_ENV=production
      - REDIS_URL=redis://redis:6379/0
      - CELERY_BROKER_URL=redis://redis:6379/0
      - CELERY_RESULT_BACKEND=redis://redis:6379/1
    volumes:
      - db_data:/app/data
    depends_on:
      redis:
        condition: service_healthy
    restart: always

  # --- Nginx (serves built frontend + reverse proxy) ---
  nginx:
    image: nginx:alpine
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx/nginx.prod.conf:/etc/nginx/conf.d/default.conf:ro
      - frontend_build:/usr/share/nginx/html:ro
      - ./nginx/ssl:/etc/nginx/ssl:ro
    depends_on:
      - backend
      - frontend_build_step
    restart: always

  # --- Frontend Build (one-shot) ---
  frontend_build_step:
    build:
      context: ./frontend
      dockerfile: Dockerfile
      target: build
    environment:
      - VITE_GA_MEASUREMENT_ID=${VITE_GA_MEASUREMENT_ID:-}
      - VITE_ADSENSE_CLIENT_ID=${VITE_ADSENSE_CLIENT_ID:-}
      - VITE_ADSENSE_SLOT_HOME_TOP=${VITE_ADSENSE_SLOT_HOME_TOP:-}
      - VITE_ADSENSE_SLOT_HOME_BOTTOM=${VITE_ADSENSE_SLOT_HOME_BOTTOM:-}
      - VITE_ADSENSE_SLOT_TOP_BANNER=${VITE_ADSENSE_SLOT_TOP_BANNER:-}
      - VITE_ADSENSE_SLOT_BOTTOM_BANNER=${VITE_ADSENSE_SLOT_BOTTOM_BANNER:-}
    volumes:
      - frontend_build:/app/dist

volumes:
  redis_data:
  upload_data:
  output_data:
  db_data:
  frontend_build: