FROM python:3.11-slim

# HF Spaces best practice: non-root user + writable cache dirs
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PIP_NO_CACHE_DIR=1 \
    HF_HOME=/tmp/huggingface \
    HUGGINGFACE_HUB_CACHE=/tmp/huggingface/hub

WORKDIR /app

RUN pip install --upgrade pip

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

COPY . /app

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

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