# Use Python 3.11 slim image
FROM python:3.11-slim

# Install system dependencies
# libglib2.0-0 is often needed for some image processing libraries
RUN apt-get update && apt-get install -y \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user (UID 1000 is required by Hugging Face)
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

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

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

# Hugging Face Spaces expects the app to listen on port 7860
EXPOSE 7860

# Run the application with gunicorn
# Using 1 worker and 8 threads for a balance of performance and resource usage
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "--threads", "8", "--timeout", "0", "app:app"]