preview.yml

name: PR Preview Links
permissions:
  contents: read
  pull-requests: write

on:
  pull_request:
    types: [opened]

jobs:
  preview-comment:
    runs-on: ubuntu-latest
    steps:
      - name: Encode branch name
        id: encode-branch
        env:
          BRANCH_NAME: ${{ github.head_ref }}
        run: |
          encoded=$(printf '%s' "$$BRANCH_NAME" | jq -sRr @uri)
          echo "branch=$encoded" >> $GITHUB_OUTPUT

      - name: Find existing comment
        uses: peter-evans/find-comment@v3
        id: find-comment
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-author: "github-actions[bot]"
          body-includes: "<!-- preview-links -->"

      - name: Create preview comment
        if: steps.find-comment.outputs.comment-id == ''
        uses: peter-evans/create-or-update-comment@v4
        with:
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            <!-- preview-links -->
            ## Preview Links

            - [Backend API](https://clerk.com/docs/reference/${{ steps.encode-branch.outputs.branch }}/backend-api)
            - [Frontend API](https://clerk.com/docs/reference/${{ steps.encode-branch.outputs.branch }}/frontend-api)