FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PORT=7860 \
    HF_HOME=/home/user/.cache/huggingface \
    TORCH_HOME=/home/user/.cache/torch \
    OMP_NUM_THREADS=1 \
    MKL_NUM_THREADS=1

RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    libgomp1 \
 && rm -rf /var/lib/apt/lists/*

RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

COPY --chown=user:user requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

COPY --chown=user:user . .

EXPOSE 7860

CMD ["sh", "-c", "uvicorn app:app --host 0.0.0.0 --port ${PORT:-7860} --workers 1"]