name: Auto Update JS MD5

on:
  # 监听代码推送
  push:
    # 只有当 .js 文件发生变化时才触发，避免无意义运行
    paths:
      - '**.js'
      - '.github/workflows/md5.yml' # 方便调试脚本本身

permissions:
  contents: write

jobs:
  generate-md5:
    runs-on: ubuntu-latest
    
    steps:
      - name: 📥 Checkout Code
        uses: actions/checkout@v6
        with:
          fetch-depth: 0 # 获取完整历史，方便提交

      - name: 🧮 Calculate & Update MD5
        run: |
          echo "开始扫描所有 .js 文件..."
          
          find . -type f -name "*.js" -not -path '*/.git/*' | while read -r file; do
            
            current_md5=$(md5sum "$file" | awk '{print $1}')

            target_file="${file}.md5"

            echo "$current_md5" > "$target_file"
            
            echo "✅ 已更新: $target_file -> $current_md5"
          done

      - name: 📤 Commit & Push Changes
        run: |
          # 配置机器人身份
          git config --global user.name "github-actions[bot]"
          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"

          git add **/*.js.md5

          if ! git diff-index --quiet HEAD; then
            git commit -m "Update md5"
            git push
            echo "::notice::🚀 MD5 文件已更新并推送！"
          else
            echo "::notice::⚠️ MD5 值没有变化，跳过提交。"
          fi