name: Compile dependabot updates

on:
  pull_request:

permissions:
  pull-requests: write
  contents: write
jobs:
  fetch-dependabot-metadata:
    runs-on: ubuntu-latest
    # We only want to check the metadata on pull_request events from Dependabot itself,
    # any subsequent pushes to the PR should just skip this step so we don't go into
    # a loop on commits created by the `build-dependabot-changes` job
    if: ${{ github.actor == 'dependabot[bot]' }}
    # Map the step output to a job output for subsequent jobs
    outputs:
      dependency-type: ${{ steps.dependabot-metadata.outputs.dependency-type }}
      package-ecosystem: ${{ steps.dependabot-metadata.outputs.package-ecosystem }}
    steps:
      - name: Fetch dependabot metadata
        id: dependabot-metadata
        uses: dependabot/fetch-metadata@c9c4182bf1b97f5224aee3906fd373f6b61b4526 # v1.6.0
        with:
          github-token: "${{ secrets.GITHUB_TOKEN }}"
  build-dependabot-changes:
    runs-on: ubuntu-latest
    needs: [fetch-dependabot-metadata]
    # We only need to build the dist/ folder if the PR relates to Docker or an npm dependency
    if: needs.fetch-dependabot-metadata.outputs.package-ecosystem == 'docker' || needs.fetch-dependabot-metadata.outputs.package-ecosystem == 'npm_and_yarn'
    steps:
      # Check out using a PAT so any pushed changes will trigger checkruns
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.ref }}
          token: ${{ secrets.DEPENDABOT_AUTOBUILD }}

      - name: Read .nvmrc
        id: nvm
        run: echo "NVMRC=$(cat .nvmrc)" >> $GITHUB_OUTPUT

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ steps.nvm.outputs.NVMRC }}

      - name: Install npm dependencies
        run: npm clean-install

      # If we're reacting to a Docker PR, we have on extra step to refresh and check in the container manifest,
      # this **must** happen before rebuilding dist/ so it uses the new version of the manifest
      - name: Rebuild docker/containers.json
        if: needs.fetch-dependabot-metadata.outputs.package-ecosystem == 'docker'
        run: |
          npm run update-container-manifest
          git add docker/containers.json

      - name: Rebuild the dist/ directory
        run: npm run package

      - name: Check in any change to dist/
        run: |
          git add dist/
          # Specifying the full email allows the avatar to show up: https://github.com/orgs/community/discussions/26560
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git commit -m "[dependabot skip] Update dist/ with build changes" || exit 0
          git push
