# Base Image: Lightweight Python 3.10
FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Copy requirements and install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Create a non-root user (Mandatory for security in Hugging Face Spaces)
RUN useradd -m -u 1000 user
USER user

# Set environment variables for the non-root user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

# Change working directory to the user's home
WORKDIR $HOME/app

# Copy the rest of the application code with proper ownership
COPY --chown=user . $HOME/app

# Expose the standard Hugging Face port
EXPOSE 7860

# Run the Flask application
# (Using python directly since we are relying on Flask's internal server for background threads)
CMD ["python", "app.py"]