generate-architecture-diagrams.yml

name: Generate Architecture Diagrams

on:
  workflow_dispatch:
  pull_request:
    paths:
      - "src/**"
      - "modules/**"
      - "docs/diagrams/assets/**"
      - "docs/diagrams/scripts/generate_example_architecture.py"
      - "docs/diagrams/README.md"
  push:
    branches:
      - main
    paths:
      - "src/**"
      - "modules/**"
      - "docs/diagrams/assets/**"
      - "docs/diagrams/scripts/generate_example_architecture.py"
      - "docs/diagrams/README.md"

permissions:
  contents: write

jobs:
  generate-diagrams:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.13"

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "20"

      - name: Install Mermaid CLI
        run: npm install -g @mermaid-js/mermaid-cli

      - name: Generate architecture diagrams
        run: python3 docs/diagrams/scripts/generate_example_architecture.py --out-dir docs/diagrams

      - name: Render Mermaid SVG diagrams
        run: |
          for diagram in docs/diagrams/*.mmd; do
            output="${diagram%.mmd}.svg"
            mmdc -i "$diagram" -o "$output" -c .github/mermaid-config.json -p .github/mermaid-puppeteer-config.json
          done

      - name: Verify generated diagrams are committed (PR)
        if: github.event_name == 'pull_request'
        run: |
          if [[ -n "$(git status --porcelain -- docs/diagrams)" ]]; then
            echo "::error::Generated diagrams are out of date. Run the generator locally and commit the changes."
            git status --short -- docs/diagrams
            exit 1
          fi

      - name: Commit updated diagrams (main)
        if: github.event_name == 'push' && github.ref == 'refs/heads/main' && github.actor != 'github-actions[bot]'
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "chore(diagrams): regenerate architecture diagrams"
          file_pattern: docs/diagrams/*.mmd docs/diagrams/*.mmd.md docs/diagrams/*.svg