FROM python:3.9-slim

RUN groupadd --gid 1000 appuser && \
    useradd --uid 1000 --gid 1000 -ms /bin/bash appuser

WORKDIR /app

RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    git \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./
COPY src/ ./src/

RUN pip install --no-cache-dir -r requirements.txt

ENV HOME=/app

# Create .streamlit config and set permissions
RUN mkdir -p /app/.streamlit && \
    echo "[server]\n\
enableCORS = false\n\
enableXsrfProtection = false\n\
" > /app/.streamlit/config.toml && \
    chown -R appuser:appuser /app /app/.streamlit

USER appuser

EXPOSE 8501

HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]