preview-deploy.yml

name: Preview Home Page — Deploy

on:
  workflow_run:
    workflows: ["Preview Home Page — Build"]
    types: [completed]

# Only one deploy at a time; do not cancel in-progress deploys.
concurrency:
  group: 'preview-deploy'
  cancel-in-progress: false

permissions:
  contents: read
  deployments: write
  pull-requests: write
  actions: read

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

jobs:
  deploy:
    runs-on: ubuntu-24.04
    # Only deploy when the build succeeded.
    if: ${{ github.event.workflow_run.conclusion == 'success' }}

    steps:
      - name: Download build artifact
        uses: actions/download-artifact@v4
        with:
          name: preview-build
          path: ./out
          run-id: ${{ github.event.workflow_run.id }}
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Read PR number
        id: pr
        run: |
          number="$(cat ./out/pr-number.txt)"
          echo "number=$number" >> "$GITHUB_OUTPUT"
          echo "branch=pr-$number" >> "$GITHUB_OUTPUT"

      - name: Deploy to Cloudflare Pages
        id: deploy
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ vars.CLOUDFLARE_ACCOUNT_ID }}
          command: pages deploy ./out --project-name=fastgpt-home --branch=${{ steps.pr.outputs.branch }}
          quiet: false

      - name: Comment Preview URL on PR
        uses: actions/github-script@v7
        if: success() && steps.pr.outputs.number != ''
        with:
          script: |
            const prNumber = parseInt('${{ steps.pr.outputs.number }}');
            const deployUrl = '${{ steps.deploy.outputs.deployment-url }}';
            const marker = '<!-- fastgpt-home-preview -->';
            const body = `${marker}
            🚀 **FastGPT Homepage Preview Ready!**

            📱 **Preview URL:** ${deployUrl}

            🔗 [👀 Click here to visit preview](${deployUrl})

            ---
            💡 This preview will be automatically updated when you push new commits to this PR.`;

            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
            });

            const existing = comments.find(c => c.body.includes(marker));
            if (existing) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: existing.id,
                body,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                body,
              });
            }