FROM python:3.9

# Install system dependencies (including libGL for OpenCV)
RUN apt-get update && apt-get install -y libgl1 && rm -rf /var/lib/apt/lists/*

# Create a non-root user and switch to it
RUN useradd -m -u 1000 user
USER user

# Ensure correct PATH for installed Python and local binaries
ENV PATH="/usr/local/bin:/home/user/.local/bin:$PATH"

# Set working directory
WORKDIR /app

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

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

# Run the app
CMD ["/usr/local/bin/python", "main.py"]