FROM python:3.12-slim

# HF Spaces runs containers as uid 1000
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user PATH=/home/user/.local/bin:$PATH HF_HOME=/home/user/.cache/huggingface
WORKDIR /home/user/app

COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Bake weights into the image so cold starts don't re-download (~1GB)
RUN python -c "from huggingface_hub import snapshot_download; snapshot_download('HuggingFaceTB/SmolVLM2-500M-Video-Instruct')"

COPY --chown=user . .
EXPOSE 7860
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]