FROM python:3.11-slim

WORKDIR /app

# Install Node.js, git, gh CLI in a single layer to minimize image size
RUN apt-get update && \
    apt-get install -y --no-install-recommends curl git ca-certificates && \
    # Node.js 22
    curl -fsSL https://deb.nodesource.com/setup_22.x | bash - && \
    apt-get install -y --no-install-recommends nodejs && \
    # GitHub CLI
    curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg \
      | dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg && \
    echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" \
      > /etc/apt/sources.list.d/github-cli.list && \
    apt-get update && apt-get install -y --no-install-recommends gh && \
    # Cleanup apt caches and temp files
    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false && \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# Create non-root user (claude --dangerously-skip-permissions refuses root)
RUN useradd -m -s /bin/bash agent

# Install base Python dependencies (A2A SDK + HTTP only)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy runtime code
COPY *.py ./
COPY entrypoint.sh ./
COPY skill_loader/ ./skill_loader/
COPY builtin_tools/ ./builtin_tools/
COPY adapters/ ./adapters/
COPY plugins_registry/ ./plugins_registry/
COPY policies/ ./policies/

# Create CLI aliases
RUN ln -s /app/a2a_cli.py /usr/local/bin/a2a && chmod +x /app/a2a_cli.py /app/a2a_mcp_server.py && \
    ln -s /app/molecule_ai_status.py /usr/local/bin/molecule-monorepo-status && chmod +x /app/molecule_ai_status.py

# Dirs and permissions
RUN mkdir -p /workspace /plugins /home/agent/.claude /home/agent/.config /home/agent/.local && \
    chown -R agent:agent /app /home/agent /workspace

# Install gosu for clean root → agent user handoff in entrypoint.
# The entrypoint starts as root to fix volume ownership, then exec's
# as the agent user so Claude Code's --dangerously-skip-permissions works.
RUN apt-get update && apt-get install -y --no-install-recommends gosu && \
    rm -rf /var/lib/apt/lists/*

VOLUME /configs
VOLUME /workspace

EXPOSE 8000
RUN chmod +x /app/entrypoint.sh
# Start as root — entrypoint fixes volume permissions then drops to agent
CMD ["./entrypoint.sh"]