# Use Python 3.10
FROM python:3.10-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set working directory
WORKDIR /app

# Install system libraries (including libgl1 for OpenCV)
RUN apt-get update && apt-get install -y \
    libglib2.0-0 \
    libgomp1 \
    libgl1 \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user (Hugging Face requirement)
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

# Copy requirements first to cache dependencies
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy the rest of the application
COPY --chown=user . /app

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

# Run the Flask app
CMD ["python", "app.py"]