FROM python:3.9

WORKDIR /code

# Add system dependencies for OpenCV and SHAP
RUN apt-get update && apt-get install -y \
    libpng-dev \
    libjpeg-dev \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install dependencies
COPY ./requirements.txt /code/requirements.txt
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# Create non-root user for Hugging Face Spaces
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

# Copy all application files
COPY --chown=user . $HOME/app

# Expose port (Hugging Face Spaces uses port 7860)
EXPOSE 7860

# Run the app
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]