services:
  db:
    image: pgvector/pgvector:pg16
    container_name: rag_postgres
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-raguser}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-ragpassword}
      POSTGRES_DB: ${POSTGRES_DB:-ragdb}
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./backend/init.sql:/docker-entrypoint-initdb.d/init.sql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-raguser} -d ${POSTGRES_DB:-ragdb}"]
      interval: 5s
      timeout: 5s
      retries: 10

  schema:
    image: pgvector/pgvector:pg16
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-raguser}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-ragpassword}
      POSTGRES_DB: ${POSTGRES_DB:-ragdb}
      PGPASSWORD: ${POSTGRES_PASSWORD:-ragpassword}
    volumes:
      - ./backend/init.sql:/schema/init.sql:ro
    command:
      - sh
      - -c
      - psql -h db -U "$$POSTGRES_USER" -d "$$POSTGRES_DB" -f /schema/init.sql
    depends_on:
      db:
        condition: service_healthy

  api:
    build:
      context: ./backend
    environment:
      # Keep this optional at Compose interpolation time so `docker compose up db`
      # works for local frontend/database development. The API requires a real key
      # before it can make OpenAI requests.
      OPENAI_API_KEY: ${OPENAI_API_KEY:-}
      DATABASE_URL: postgresql+asyncpg://${POSTGRES_USER:-raguser}:${POSTGRES_PASSWORD:-ragpassword}@db:5432/${POSTGRES_DB:-ragdb}
    ports:
      - "8000:8000"
    depends_on:
      db:
        condition: service_healthy
      schema:
        condition: service_completed_successfully
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
      interval: 10s
      timeout: 5s
      retries: 5

  frontend:
    build:
      context: ./frontend
      args:
        # Baked into the bundle at build time, not read at container start.
        VITE_API_BASE_URL: ${VITE_API_BASE_URL:-http://localhost:8000}
    ports:
      - "5173:80"
    depends_on:
      api:
        condition: service_healthy

volumes:
  postgres_data: