# Lightweight Python base image
FROM python:3.12-slim

# Hugging Face Docker spaces run the container as a non-root user with UID 1000
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"
WORKDIR /home/user/app

# Install dependencies first so Docker can cache this layer
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && pip install --no-cache-dir -r requirements.txt

# Copy the API code and the serialized model
COPY --chown=user . .

# Serve the Flask app with gunicorn on port 7860 (the port Hugging Face exposes)
EXPOSE 7860
CMD ["gunicorn", "--workers", "2", "--bind", "0.0.0.0:7860", "--timeout", "120", "app:app"]