action.yml

name: 'pr preview action'
description: 'Generate and post a preview URL as a PR comment.'
branding:
  icon: 'award'
  color: 'green'

inputs:
  previewUrl:
    required: true
  BOT_APP_ID:
    required: true
  BOT_APP_SECRET:
    required: true
  GITHUB_TOKEN:
    required: true
  REMOVE_PREFIX:
    required: false
  REMOVE_SUFFIX:
    required: false

runs:
  using: "composite"
  steps:
    - name: 使用 GitHub App 进行身份验证
      id: auth
      uses: actions/create-github-app-token@v1
      with:
        app-id: ${{ inputs.BOT_APP_ID }}
        private-key: ${{ inputs.BOT_APP_SECRET }}
        owner: ${{ github.repository_owner }}
      
    - name: List PR files using GitHub CLI
      id: url
      run: |
          # 使用 GitHub CLI 获取 PR 文件列表并提取文件路径
          files=$(gh api \
            -H "Accept: application/vnd.github+json" \
            /repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/files \
            | jq -r '.[].filename')  # 使用 -r 获取原始文本输出

          # 处理文件路径，拼接成完整的 URL
          for file in $files; do
            if [[ $file == *.md ]]; then
              # 去掉路径前缀和后缀
              modified_file="${file#${{ inputs.REMOVE_PREFIX }}}"   # 删除路径前缀
              modified_file="${modified_file%${{ inputs.REMOVE_SUFFIX }}}"  # 删除路径后缀

              # 拼接 URL
              file_url="${{ inputs.previewUrl }}${modified_file}"
              all_file_urls="${all_file_urls}\n${file_url}"
            fi
          done
          echo "all_file_urls=${all_file_urls}" >> $GITHUB_ENV
      shell: bash
      env:
        GH_TOKEN: ${{ inputs.GITHUB_TOKEN }}

    # 获取预览链接并发送到 PR
    - name: 发送整体 PR review
      uses: actions/github-script@v6
      with:
        github-token: ${{ steps.auth.outputs.token }}
        script: |
          const prNumber = context.payload.pull_request.number;
          const reviewBody = `🚀 预览部署完成！访问链接: ${{ inputs.previewUrl }}\n\n✨ 本 PR 修改了以下页面: ✨${{ env.all_file_urls }}`;

          // 获取现有 review
          const { data: reviews } = await github.rest.pulls.listReviews({
            owner: context.repo.owner,
            repo: context.repo.repo,
            pull_number: prNumber,
          });

          // 查找已有的评论 review
          const existingReview = reviews.find(review =>
            review.body.includes('🚀 预览部署完成！'));

          if (existingReview) {
            // 如果已经有 review，更新它
            await github.rest.pulls.updateReview({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: prNumber,
              review_id: existingReview.id,
              body: reviewBody,
            });
          } else {
            // 如果没有 review，创建新的 review
            await github.rest.pulls.createReview({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: prNumber,
              body: reviewBody,
              event: "COMMENT",
            });
          }