# Use a lightweight Python base image
FROM python:3.10-slim

# Hugging Face Spaces require applications to run as a non-root user for security.
# We create a user named 'user' with User ID 1000.
RUN useradd -m -u 1000 user

# Switch to that new user
USER user

# Set environment variables for the user's home and path
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

# Set the working directory inside the container
WORKDIR $HOME/app

# Copy the requirements file FIRST, and make sure the new user owns it
COPY --chown=user requirements.txt .

# Install all the Python libraries 
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of your application files (app.py and the weights file)
COPY --chown=user . .

# Expose the port Gradio will run on
EXPOSE 7860

# Force Gradio to broadcast on all network interfaces
ENV GRADIO_SERVER_NAME="0.0.0.0"
ENV GRADIO_SERVER_PORT="7860"

# Command to boot up the production engine
# Boot up the FastAPI server via Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]