FROM python:3.11-slim-bullseye as builder

# Tiktoken requires Rust toolchain, so build it in a separate stage
RUN apt-get update && apt-get install -y gcc curl
RUN curl https://sh.rustup.rs -sSf | sh -s -- -y && apt-get install --reinstall libc6-dev -y
ENV PATH="/root/.cargo/bin:${PATH}"
RUN pip install --upgrade pip && pip install tiktoken==0.1.2

FROM python:3.11-slim-bullseye
# Copy pre-built packages from builder stage
COPY --from=builder /usr/local/lib/python3.11/site-packages/ /usr/local/lib/python3.11/site-packages/
WORKDIR /app
COPY . /app
ENV FLASK_APP=app.py
ENV FLASK_ENV=development
RUN pip install -r requirements.txt

EXPOSE 5000

CMD ["flask", "run", "--host=0.0.0.0"]