name: Notify when API changes are merged

on:
  pull_request:
    branches: [ "master" ]
    types:
      - closed

jobs:
  if_merged:
    if: github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'api changes')
    runs-on: ubuntu-latest
    steps:
    - run: |
        echo The PR was merged
    - name: Send Slack notification
      env:
        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
      uses: 8398a7/action-slack@v3
      with:
        status: custom
        fields: repo,commit,event,action,workflow,ref,url
        custom_payload: |
          {
            "attachments": [
              {
                "color": "${{ job.status }}",
                "title": "${{ github.actor }} ${{ github.event.pull_request && github.event.pull_request.merged == true && 'merged a pull request' || github.event.pull_request && 'opened a pull request' || github.event_name == 'push' && 'pushed new changes' || github.event_name == 'create' && 'created a new branch or tag' || github.event_name == 'delete' && 'deleted a branch or tag' || github.event_name == 'issues' && github.event.action || 'triggered an event' }}",
                "text": ":tada: Event details:\n\n- Repository: ${{ github.repository }}\n- Branch: ${{ github.ref }}\n- Message: ${{ github.event_name == 'push' && github.event.head_commit.message || github.event_name == 'issues' && github.event.issue.title || github.event_name == 'pull_request' && github.event.pull_request.title || '' }}\n- :globe_with_meridians: Link: ${{ github.event.pull_request.html_url || github.event.issue.html_url || github.event.repository.html_url }}"
              }
            ]
          }