FROM docker.io/python:3.12-slim-bookworm

ENV PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1

# Runtime libraries required by WeasyPrint's Pango/HarfBuzz/Cairo stack.
RUN apt-get update \
 && apt-get install -y --no-install-recommends \
      libpango-1.0-0 \
      libpangoft2-1.0-0 \
      libharfbuzz0b \
      libfontconfig1 \
      libcairo2 \
      libgdk-pixbuf-2.0-0 \
      libffi8 \
      libjpeg62-turbo \
      libopenjp2-7 \
      shared-mime-info \
      fonts-dejavu-core \
 && rm -rf /var/lib/apt/lists/*

RUN pip install "weasyprint==62.3" "pydyf==0.10.0"

WORKDIR /app
COPY render.py /app/render.py

ENTRYPOINT ["python3", "/app/render.py"]
CMD ["--help"]