# .github/workflows/sync-page-to-cnb.yml
name: Sync Page Branch to CNB (Auto Deploy)

on:
  push:
    branches:
      - page   # 当 page 分支有新提交时自动触发（由每日壁纸生成脚本推送）
  workflow_dispatch:
    inputs:
      reason:
        description: '手动触发原因（如：测试部署或紧急更新）'
        required: false
        default: 'Manual run'

jobs:
  sync:
    runs-on: ubuntu-latest

    steps:
      # 🔍 1. 检出 page 分支内容
      - name: 📥 Checkout page branch
        uses: actions/checkout@v5
        with:
          ref: page
          token: ${{ secrets.GITHUB_TOKEN }}
          fetch-depth: 0  # 获取完整历史记录，确保 git diff 能正常工作

      # 🔍 2. 检测是否有实际变更（兼容首次提交）
      - name: 🔎 Check for file changes
        id: check
        run: |
          # 判断当前是否为首次提交（无父提交）
          if [ -z "$(git rev-parse --verify HEAD^ 2>/dev/null)" ]; then
            echo "🆕 First commit detected — assuming changes exist and proceeding."
            echo "skip=false" >> $GITHUB_OUTPUT
          else
            # 获取上一次提交与当前提交之间的文件差异
            CHANGES=$(git diff --name-only HEAD^ HEAD)
            if [ -z "$CHANGES" ]; then
              echo "✅ No changes detected since last commit. Skipping sync."
              echo "skip=true" >> $GITHUB_OUTPUT
            else
              echo "✨ Changes detected:"
              echo "$CHANGES"
              echo "skip=false" >> $GITHUB_OUTPUT
            fi
          fi

      # 🚀 3. 推送到 CNB（仅当有变更时执行）
      - name: 🚀 Push to CNB & Trigger Deployment
        if: steps.check.outputs.skip == 'false'
        env:
          CNB_USERNAME: ${{ secrets.CNB_USERNAME }}
          CNB_TOKEN: ${{ secrets.CNB_TOKEN }}
        run: |
          echo "🧹 Cleaning old Git metadata..."
          rm -rf .git

          echo "🌱 Initializing new Git repository..."
          git init
          git config --global user.name 'GitHub Action'
          git config --global user.email 'action@github.com'

          echo "💾 Adding all static files to staging area..."
          git add .

          echo "📝 Committing with timestamp..."
          # 使用 %% 转义 %，因为 YAML 中 % 是特殊字符
          git commit -m "⚡ Sync from GitHub page branch: $(date +'%%Y-%%m-%%d %%H:%%M:%%S')"

          echo "🔗 Setting remote to CNB repository..."
          git remote add origin "https://${{ secrets.CNB_USERNAME }}:${{ secrets.CNB_TOKEN }}@cnb.cool/gyhwd.top/AhHui-Homepage.git"

          echo "🚀 Forcing push to main branch on CNB (default deployment branch)..."
          git branch -M main
          git push --force --quiet origin main

          echo "🎉 Successfully pushed to CNB: wojack/AhHui-Homepage"

      # 👇 新增：发送事件触发服务器部署
      - name: 🔔 Trigger server deployment
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.repos.createDispatchEvent({
              owner: context.repo.owner,
              repo: context.repo.repo,
              event_type: 'deploy-to-server',
              client_payload: {
                message: 'CNB updated, triggering server sync',
                commit: context.sha
              }
            })