FROM python:3.11-slim

WORKDIR /code

# Install dependencies first (better layer caching - only reinstalls if requirements.txt changes)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy app code and artifacts
COPY app ./app
COPY artifacts ./artifacts

EXPOSE 8000

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]