FROM python:3.9-slim

# Install system dependencies (poppler-utils for pdf2image)
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    poppler-utils \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"
WORKDIR /app

# Copy requirements first (for better caching)
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir --upgrade -r requirements.txt

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

# Run Streamlit
CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]