# Hugging Face Docker Space for Research-Link-AI.
# CPU-only, no API keys, deterministic offline drafts by default.
FROM python:3.11-slim

# Run as the non-root user Hugging Face Spaces expects (uid 1000).
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH
WORKDIR /home/user/app

# Install the package.
COPY --chown=user:user . /home/user/app
RUN pip install --no-cache-dir --user -e .

# Safe public-demo defaults (override with Space Variables/Secrets):
#  - offline LLM mode: no keys, no GPU, deterministic grounded drafts
#  - bind all interfaces on the HF app port (7860)
#  - writable, ephemeral data/cache under the user's home
ENV RESEARCHLINK_LLM_MODE=offline \
    RESEARCHLINK_BIND_HOST=0.0.0.0 \
    RESEARCHLINK_BACKEND_PORT=7860 \
    RESEARCHLINK_OUTPUT_DIR=/home/user/app/papers \
    RESEARCHLINK_CACHE_DIR=/home/user/app/.cache/researchlink

EXPOSE 7860
CMD ["python", "-m", "uvicorn", "researchlink.api.app:app", "--host", "0.0.0.0", "--port", "7860"]