FROM python:3.11-slim

WORKDIR /app

# System dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc g++ libffi-dev \
    && rm -rf /var/lib/apt/lists/*

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

# spaCy model
RUN python -m spacy download en_core_web_sm

COPY . .

# Hugging Face Spaces expects port 7860
ENV PORT=7860

EXPOSE 7860

# Lazy model loading: models download on first request,
# cached to /data/.hf-cache/ persistent volume

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