name: "Pull Request Labeler"
on:
  pull_request_target:
    types: [opened]
jobs:

  triage:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
    - uses: actions/labeler@main
      with:
        repo-token: "${{ secrets.GITHUB_TOKEN }}"

  type-scope:
    runs-on: ubuntu-latest
    needs: ["triage"]
    permissions:
      contents: write
      pull-requests: write
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      GH_REPO: ${{ github.repository }}
      PR_NUMBER: ${{ github.event.pull_request.number }}
      PR_TITLE: ${{ github.event.pull_request.title }}
    steps:
    - name: "Extract commit type and add as label"
      run: gh pr edit "$PR_NUMBER" --add-label "$(echo "$PR_TITLE" | sed -E 's|([[:alpha:]]+)(\(.*\))?!?:.*|\1|')" || true
    - name: "Extract commit scope and add as label"
      run: gh pr edit "$PR_NUMBER" --add-label "$(echo "$PR_TITLE" | sed -E 's|[[:alpha:]]+\((.+)\)!?:.*|\1|')" || true

  upload-pr-number:
    runs-on: ubuntu-latest
    steps:
      - name: Save PR number
        run: |
          mkdir -p pr
          echo ${{ github.event.number }} > pr/pr_number
      - uses: actions/upload-artifact@v2
        with:
          name: pr_number
          path: pr/