FROM python:3.11-slim

# HuggingFace Spaces runs as user 1000
RUN useradd -m -u 1000 user
WORKDIR /app

# System deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential curl && \
    rm -rf /var/lib/apt/lists/*

# Install Python deps as root first (faster layer caching)
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy app source
COPY --chown=user . .

# HF Spaces exposes port 7860
ENV PORT=7860
EXPOSE 7860

USER user

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