preview-cleanup.yml

name: Preview Cleanup

on:
  pull_request:
    types: [closed]

jobs:
  cleanup-preview:
    name: Remove preview (PR #${{ github.event.pull_request.number }})
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
      deployments: write

    steps:
      - uses: actions/checkout@v4

      - name: Delete Cloudflare Pages deployment
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: pages deployment delete --project-name=notify-chain-dashboard --branch=pr-${{ github.event.pull_request.number }} --yes

      - name: Update PR comment to mark preview removed
        uses: actions/github-script@v7
        env:
          PR_NUMBER: ${{ github.event.pull_request.number }}
        with:
          script: |
            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: Number(process.env.PR_NUMBER),
            });

            const marker = '<!-- notify-chain-preview-bot -->';
            const existing = comments.find(c => c.body.includes(marker));
            if (!existing) return;

            const reason = context.payload.pull_request.merged ? 'merged' : 'closed';
            const body = [
              marker,
              '## 🚀 Preview Deployment',
              '',
              `| | |`,
              `|---|---|`,
              `| **Status** | 🗑️ Removed (PR ${reason}) |`,
            ].join('\n');

            await github.rest.issues.updateComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              comment_id: existing.id,
              body,
            });