# Use an official lightweight Python image
FROM python:3.11-slim

# Create a non-root user (Hugging Face Spaces recommends running as a non-root user)
RUN useradd -m -u 1000 user

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV PORT=7860
# MongoDB is required. If you use a cloud DB, you can inject MONGO_URI in HuggingFace Secrets.
# ENV MONGO_URI=mongodb+srv://...

# Switch to the non-root user and set the working directory
USER user
WORKDIR /home/user/app

# Copy the requirements file and install dependencies
COPY --chown=user requirements.txt .
# Install dependencies into the user's local environment
RUN pip install --no-cache-dir --user -r requirements.txt

# Add the local bin to PATH
ENV PATH="/home/user/.local/bin:${PATH}"

# Copy the application code
COPY --chown=user . .

# Expose the Hugging Face Spaces default port
EXPOSE 7860

# Run the FastAPI application using Uvicorn
CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]