FROM python:3.10-slim

# HF Spaces runs as a non-root user — this satisfies that requirement
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /app

# Install system deps needed by OpenCV
USER root
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 libglib2.0-0 libsm6 libxrender1 libxext6 \
    && rm -rf /var/lib/apt/lists/*
USER user

# Install Python deps
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy app source and model files
COPY --chown=user server.py .
COPY --chown=user models/ ./models/

# HF Spaces expects the app to listen on port 7860
EXPOSE 7860

CMD ["python", "server.py"]