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version: '3.9'

services:

  # ── Redis (message broker + result backend) ──────────────────────────────
  redis:
    image: redis:7-alpine
    container_name: seg_redis
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 5s
      timeout: 3s
      retries: 10
    restart: unless-stopped

  # ── FastAPI Backend ───────────────────────────────────────────────────────
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: seg_backend
    ports:
      - "8000:8000"
    environment:
      - REDIS_URL=redis://redis:6379/0
      - UPLOAD_DIR=/data/uploads
      - OUTPUT_DIR=/data/outputs
      - MAX_FILE_SIZE_MB=200
    volumes:
      - seg_data:/data
      - ./backend:/app           # hot-reload in dev
    depends_on:
      redis:
        condition: service_healthy
    command: uvicorn main:app --host 0.0.0.0 --port 8000 --reload
    restart: unless-stopped

  # ── Celery Worker ─────────────────────────────────────────────────────────
  worker:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: seg_worker
    environment:
      - REDIS_URL=redis://redis:6379/0
      - UPLOAD_DIR=/data/uploads
      - OUTPUT_DIR=/data/outputs
    volumes:
      - seg_data:/data
      - ./backend:/app
    depends_on:
      redis:
        condition: service_healthy
    # 2 concurrent workers; adjust --concurrency for more GPU jobs
    command: celery -A tasks worker --loglevel=info --concurrency=2
    restart: unless-stopped

  # ── Next.js Frontend ─────────────────────────────────────────────────────
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
    container_name: seg_frontend
    ports:
      - "3000:3000"
    environment:
      - NEXT_PUBLIC_API_URL=http://localhost:8000
    depends_on:
      - backend
    restart: unless-stopped

volumes:
  redis_data:
  seg_data: