FROM python:3.11-slim

WORKDIR /app

# Set writable cache directory
ENV TRANSFORMERS_CACHE=/tmp/cache
ENV SENTENCE_TRANSFORMERS_HOME=/tmp/cache
ENV HF_HOME=/tmp/cache

# Create cache directory
RUN mkdir -p /tmp/cache && chmod 777 /tmp/cache

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

COPY app.py .

EXPOSE 7860

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