FROM python:3.11-slim

# Hugging Face Spaces best practice: run as a non-root user (uid 1000)
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /home/user/app

COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir --user -r requirements.txt

COPY --chown=user . .

# The app reads PORT from the environment; keep it aligned with app_port in README.
ENV PORT=8765
EXPOSE 8765

CMD ["python3", "app.py"]