services:
  db:
    image: postgres:16-alpine
    container_name: lothar_collatz_db
    restart: unless-stopped
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-lothar_collatz}
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-adminadmin}
    ports:
      - '${POSTGRES_PORT:-5432}:5432'
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: [ 'CMD-SHELL', 'pg_isready -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-lothar_collatz}' ]
      interval: 5s
      timeout: 5s
      retries: 10

  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: lothar_collatz_backend
    restart: unless-stopped
    environment:
      DATABASE_URL: postgresql+psycopg://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-adminadmin}@db:5432/${POSTGRES_DB:-lothar_collatz}
      API_CORS_ORIGINS: ${API_CORS_ORIGINS:-http://localhost:5173}
    ports:
      - '${BACKEND_PORT:-8000}:8000'
    depends_on:
      db:
        condition: service_healthy

  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
      args:
        VITE_API_BASE: ${VITE_API_BASE:-http://localhost:8000}
    container_name: lothar_collatz_frontend
    restart: unless-stopped
    ports:
      - '${FRONTEND_PORT:-5173}:80'
    depends_on:
      backend:
        condition: service_started

volumes:
  postgres_data: