# Description: Builds ComfyUI frontend and deploys previews to Cloudflare Pages
name: 'CI: Deploy Preview'

on:
  pull_request:
  push:
    branches: [main]

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  # Post starting comment for non-forked PRs
  comment-on-pr-start:
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == false
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Post starting comment
        env:
          GITHUB_TOKEN: ${{ github.token }}
        run: |
          chmod +x scripts/cicd/pr-preview-deploy-and-comment.sh
          ./scripts/cicd/pr-preview-deploy-and-comment.sh \
            "${{ github.event.pull_request.number }}" \
            "starting"

  # Build frontend for all PRs and pushes
  build:
    runs-on: ubuntu-latest
    outputs:
      conclusion: ${{ steps.job-status.outputs.conclusion }}
      workflow-url: ${{ steps.workflow-url.outputs.url }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Setup frontend
        uses: ./.github/actions/setup-frontend

      - name: Build frontend
        env:
          FRONTEND_COMMIT_HASH: ${{ github.sha }}
          CI_BRANCH: ${{ github.head_ref || github.ref_name }}
          CI_PR_NUMBER: ${{ github.event.pull_request.number || '' }}
          CI_RUN_ID: ${{ github.run_id }}
          CI_JOB_ID: ${{ github.job }}
        run: pnpm build

      - name: Set job status
        id: job-status
        if: always()
        run: |
          echo "conclusion=${{ job.status }}" >> $GITHUB_OUTPUT

      - name: Get workflow URL
        id: workflow-url
        if: always()
        run: |
          echo "url=${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" >> $GITHUB_OUTPUT

      - name: Upload build artifact
        if: success() && github.event.pull_request.head.repo.fork == false
        uses: actions/upload-artifact@v6
        with:
          name: dist
          path: dist/
          retention-days: 7

  # Deploy and comment for non-forked PRs only
  deploy-and-comment:
    needs: [comment-on-pr-start, build]
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == false && always()
    permissions:
      pull-requests: write
      contents: read
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Download build artifact
        if: needs.build.outputs.conclusion == 'success'
        uses: actions/download-artifact@v7
        with:
          name: dist
          path: dist

      - name: Make deployment script executable
        run: chmod +x scripts/cicd/pr-preview-deploy-and-comment.sh

      - name: Deploy preview and comment on PR
        env:
          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          GITHUB_TOKEN: ${{ github.token }}
          WORKFLOW_CONCLUSION: ${{ needs.build.outputs.conclusion }}
          WORKFLOW_URL: ${{ needs.build.outputs.workflow-url }}
        run: |
          ./scripts/cicd/pr-preview-deploy-and-comment.sh \
            "${{ github.event.pull_request.number }}" \
            "completed"

  # Deploy to production URL on main branch push
  deploy-production:
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Setup frontend
        uses: ./.github/actions/setup-frontend

      - name: Build frontend
        env:
          FRONTEND_COMMIT_HASH: ${{ github.sha }}
          CI_BRANCH: ${{ github.ref_name }}
          CI_RUN_ID: ${{ github.run_id }}
          CI_JOB_ID: ${{ github.job }}
        run: pnpm build

      - name: Deploy to Cloudflare Pages (production)
        env:
          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
        run: |
          pnpm dlx wrangler@^4.0.0 pages deploy dist \
            --project-name=comfy-ui \
            --branch=main