FROM python:3.12-slim as builder

WORKDIR /build

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

FROM python:3.12-slim

WORKDIR /app

RUN useradd -m -u 1000 appuser

COPY --from=builder --chown=appuser:appuser /root/.local /home/appuser/.local
COPY --chown=appuser:appuser app ./app
COPY --chown=appuser:appuser main.py .

# Download models during build instead of copying from local
COPY scripts/model_download.bash /tmp/model_download.bash
RUN pip install huggingface-hub && \
    bash /tmp/model_download.bash && \
    chown -R appuser:appuser models && \
    rm /tmp/model_download.bash

USER appuser

ENV PATH=/home/appuser/.local/bin:$PATH \
    PYTHONUNBUFFERED=1

EXPOSE 8000

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]