FROM node:22-slim

# System dependencies:
#   - curl/ca-certificates: downloads (Claude Code installer, nvm, git-spice)
#   - git + ripgrep: Claude Code requirements
#   - build-essential, libssl-dev, libreadline-dev, zlib1g-dev: rbenv/ruby-build deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    ca-certificates \
    git \
    ripgrep \
    bash \
    build-essential \
    libssl-dev \
    libreadline-dev \
    zlib1g-dev \
    libffi-dev \
    libyaml-dev \
    && rm -rf /var/lib/apt/lists/*

# --- rbenv (installed into home volume on first run, via entrypoint) ---
# RBENV_ROOT points into the home volume so the install persists across rebuilds.
ENV RBENV_ROOT=/home/coder/.rbenv
ENV PATH="$RBENV_ROOT/bin:$RBENV_ROOT/shims:$PATH"

# Initialise rbenv shims for all bash sessions (no-op if not yet installed)
RUN echo '[ -d "$RBENV_ROOT/bin" ] && eval "$(rbenv init - bash)"' >> /etc/bash.bashrc

# --- nvm (installed into home volume on first run, via entrypoint) ---
# NVM_DIR points into the home volume so the install persists across rebuilds.
ENV NVM_DIR=/home/coder/.nvm

# Source nvm for all bash sessions (nvm.sh is a no-op if not yet installed)
RUN echo '[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"' >> /etc/bash.bashrc

# --- git-spice ---
# Releases are named git-spice.Linux-<arch>.tar.gz; uname -m gives the right arch directly.
RUN ARCH=$(uname -m) && \
    GS_VERSION=$(curl -fsSL https://api.github.com/repos/abhinav/git-spice/releases/latest \
        | grep '"tag_name"' | sed 's/.*"v\([^"]*\)".*/\1/') && \
    mkdir -p /tmp/gs-install && \
    curl -fsSL "https://github.com/abhinav/git-spice/releases/download/v${GS_VERSION}/git-spice.Linux-${ARCH}.tar.gz" \
        | tar -xz -C /tmp/gs-install && \
    find /tmp/gs-install -maxdepth 1 -type f -executable -exec cp {} /usr/local/bin/gs \; && \
    chmod +x /usr/local/bin/gs && \
    rm -rf /tmp/gs-install

# --- non-root user ---
RUN useradd -m -s /bin/bash -u 1001 coder

# Claude Code native installer lands in ~/.local/bin or ~/.claude/bin
ENV PATH="/home/coder/.local/bin:/home/coder/.claude/bin:$PATH"

COPY --chmod=755 entrypoint.sh /usr/local/bin/entrypoint.sh

USER coder
WORKDIR /code

ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
CMD ["bash"]