FROM python:3.9

# Install system dependencies as root for OpenCV support
USER root
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Set up a new user named "user" with UID 1000 to comply with Hugging Face security
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /app

# Copy dependencies first to leverage caching
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

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

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