# Use the base image with the correct Python version (e.g., Python 3.9)
FROM python:3.9

# Create a new user with user ID 1000 (e.g., user)
RUN useradd -m -u 1000 user

# Switch to the created user for subsequent commands
USER user

# Update the PATH environment variable to include the user's local bin
ENV PATH="/home/user/.local/bin:$PATH"

# Set the working directory inside the container
WORKDIR /app

# Copy requirements.txt and set the ownership to the created user
COPY --chown=user ./requirements.txt requirements.txt

# Install the required Python dependencies without caching
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy the rest of the application files to the working directory
COPY --chown=user . /app

# Start the Streamlit app on port 7860, which is the default port expected by Hugging Face Spaces
CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]

# Reference: https://huggingface.co/docs/hub/en/spaces-sdks-docker