services:
  backend:
    build:
      context: .
      dockerfile: Dockerfile
    hostname: backend
    command: >
      sh -c "python manage.py migrate --noinput &&
             python manage.py runserver 0.0.0.0:8000"
    volumes:
      - .:/app
    ports:
      - "8000:8000"
    env_file:
      - path: .env
        required: false
    environment:
      POSTGRES_HOST: database
    depends_on:
      database:
        condition: service_healthy

  # Postgres-backed background tasks. Same image, different entrypoint.
  worker:
    build:
      context: .
      dockerfile: Dockerfile
    command: python manage.py procrastinate worker
    volumes:
      - .:/app
    env_file:
      - path: .env
        required: false
    environment:
      POSTGRES_HOST: database
    depends_on:
      backend:
        condition: service_started

  database:
    image: postgres:16
    hostname: database
    environment:
      POSTGRES_DB: ${POSTGRES_DATABASE:-sarlink}
      POSTGRES_USER: ${POSTGRES_USER:-sarlink}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
    volumes:
      - pgdata:/var/lib/postgresql/data
    ports:
      - "5432:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER:-sarlink}"]
      interval: 5s
      timeout: 3s
      retries: 10

volumes:
  pgdata: