name: pr-title

on:
  pull_request_target:
    types:
      - opened
      - edited
      - reopened
      - synchronize

permissions:
  contents: read
  statuses: write

jobs:
  validate:
    name: Validate PR title
    runs-on: ubuntu-latest
    steps:
      - uses: amannn/action-semantic-pull-request@v6
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          headerPattern: '^([\w ]*)(?:\(([\w$.\-*/ ]*)\))?: (.*)$'
          headerPatternCorrespondence: type, scope, subject
          types: |
            build
            chore
            ci
            docs
            feat
            fix
            memory base
            perf
            refactor
            revert
            style
            test
      - name: Disallow trailing ellipsis
        shell: bash
        env:
          PR_TITLE: ${{ github.event.pull_request.title }}
        run: |
          if [[ "$PR_TITLE" == *... ]]; then
            echo "::error title=Invalid PR title::PR title must not end with an ellipsis (...)"
            exit 1
          fi