FROM xianpengshen/clang-tools:21

# Install development tools (cmake, ninja, build essentials)
USER root
RUN apt-get update \
   && apt-get install -y --no-install-recommends \
   cmake \
   ninja-build \
   build-essential \
   git \
   python3 \
   python3-pip \
   ca-certificates \
   && rm -rf /var/lib/apt/lists/*

# Create workspace folder (VS Code devcontainer convention)
ARG WORKSPACE_FOLDER=/workspaces/aoc25
RUN mkdir -p ${WORKSPACE_FOLDER} && chown -R root:root ${WORKSPACE_FOLDER}
WORKDIR ${WORKSPACE_FOLDER}

ENV SHELL=/bin/bash

CMD ["bash"]