name: purge-jsdelivr-cache

on:
  push:
    branches:
      - master
    paths:
      - 'Scriptable/**'

jobs:
  purge-jsdelivr-cache:
    runs-on: ubuntu-20.04
    steps:
      - name: 检出 master 分支
        uses: actions/checkout@v3

      - name: 安装 Git
        run: |
          sudo apt-get install git -y
          git --version  # 输出 Git 版本以确认安装成功

      - name: 确定最后一次提交变更的文件
        id: changed_files
        run: |
          echo "获取最后一次提交变更的文件..."
          git log -1 --name-only --pretty=format: > diff_output.txt || true
          echo "Git log 结果:"
          cat diff_output.txt  # 输出 git log 结果以进行调试
          grep '^Scriptable/' diff_output.txt > changed_files.txt || true
          echo "筛选后的变更文件:"
          cat changed_files.txt || true  # 输出筛选后的文件列表进行调试
          if [ -s changed_files.txt ]; then
            echo "发现变更的文件:"
            cat changed_files.txt
            echo "changed_files=$(cat changed_files.txt | tr '\n' ' ')" >> $GITHUB_ENV
          else
            echo "没有发现变更的文件。"
            echo "changed_files=" >> $GITHUB_ENV
          fi

      - name: 输出变更的文件
        run: |
          echo "变更的文件: ${{ env.changed_files }}"

      - name: 确定需要清除的 CDN URL
        if: env.changed_files != ''
        id: purge_urls
        run: |
          baseUrl="https://cdn.jsdelivr.net/gh/${{ github.repository }}@latest"
          urls=""
          for f in ${{ env.changed_files }}; do
            urls+="${baseUrl}/${f},"
          done
          echo "urls=${urls%,*}" >> $GITHUB_OUTPUT

      - name: 输出 CDN URL
        if: env.changed_files != ''
        run: |
          echo "需要清除的 CDN URL: ${{ steps.purge_urls.outputs.urls }}"

      - name: 清除 CDN 缓存
        if: env.changed_files != ''
        uses: egad13/purge-jsdelivr-cache@v1
        with:
          url: ${{ steps.purge_urls.outputs.urls }}