name: Add WIP

on:
  pull_request_target:
    types:
      - opened

jobs:
  add_wip_prefix:
    if: |
      join(github.event.pull_request.requested_reviewers) == ''
        && !contains(github.event.pull_request.title, 'WIP')
        && !contains(github.event.pull_request.labels.*.name, 'WIP')
        && github.event.pull_request.draft != true
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Add WIP
      env:
          TITLE: ${{ github.event.pull_request.title }}
      shell: bash
      run: |
        echo ${{ secrets.GITHUB_TOKEN }} | gh auth login --with-token
        gh pr edit ${{ github.event.pull_request.number }} -t "[WIP] ${TITLE}"