ARG BASE_IMAGE
FROM ${BASE_IMAGE}

# Create a non-root dev user
ARG USER=dev
ARG UID=1000
ARG GID=1000
RUN groupadd -g ${GID} ${USER} \
 && useradd -m -u ${UID} -g ${GID} -s /bin/bash ${USER}

# System packages commonly needed (OpenCV runtime deps, build tools, etc.)
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
      git wget curl ca-certificates \
      build-essential pkg-config \
      libgl1 libglib2.0-0 ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Basic Python tooling
RUN python -m pip install --upgrade pip wheel setuptools

# Workspace & permissions
WORKDIR /workspace
RUN chown -R ${UID}:${GID} /workspace
USER ${USER}

# (Optional) expose Jupyter/TensorBoard if you use them
# EXPOSE 8888 6006