FROM python:3.12-slim
ENV DEBIAN_FRONTEND=noninteractive

RUN useradd -m -u 1000 user
WORKDIR /app

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
      git \
      stockfish \
      make && \
    rm -rf /var/lib/apt/lists/*

COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

RUN git clone https://github.com/lichess-org/chess-openings.git /app/data/lichess_openings && \
    cd /app/data/lichess_openings && \
    make

COPY --chown=user . /app
WORKDIR /app

EXPOSE 7860
ENV GRADIO_SERVER_NAME="0.0.0.0"
CMD ["python", "app.py"]