# Use an official Python runtime
FROM python:3.10-slim

# Install system dependencies (including Graphviz)
RUN apt-get update && apt-get install -y \
    graphviz \
    && rm -rf /var/lib/apt/lists/*

# Hugging Face requires running as a non-root user
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

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

# Copy the rest of the application
COPY --chown=user . .

# Expose Hugging Face's required port
EXPOSE 7860

# Start the FastAPI application on port 7860
CMD ["uvicorn", "Streamlit_API:app", "--host", "0.0.0.0", "--port", "7860"]