# 1. Use a lightweight Python environment
FROM python:3.10-slim

# 2. Install TeX Live Full (Every package, modern fonts, everything)
RUN apt-get update && apt-get install -y --no-install-recommends \
    texlive-full \
    biber \
    && rm -rf /var/lib/apt/lists/*

# 3. Create a non-root user (Required by Hugging Face Spaces)
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

# 4. Set up the working directory
WORKDIR $HOME/app

# 5. Copy and install Python requirements
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# 6. Copy the server script
COPY --chown=user latex-server.py .

# 7. Expose the Hugging Face port (7860) and run with Gunicorn
EXPOSE 7860
CMD ["gunicorn", "-w", "1", "-b", "0.0.0.0:7860", "--timeout", "300", "latex-server:app"]