# ==============================
# OneMD 博客构建与部署工作流
# 触发条件：推送代码到 main 分支
# 流程：拉代码 → 装依赖 → 构建 → 通过 SSH + rsync 部署到服务器
# ==============================
name: Build and Deploy to Server

# --- 触发器：main 分支有 push 时自动执行 ---
on:
  push:
    branches:
      - main

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest       # 运行环境：最新版 Ubuntu

    steps:
      # 1. 拉取仓库代码
      - name: Checkout code
        uses: actions/checkout@v4

      # 2. 安装 Node.js 运行环境（版本 20，开启 npm 缓存加速）
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      # 3. 安装项目依赖（npm ci 比 npm install 更快更稳定）
      - name: Install dependencies
        run: npm ci

      # 4. 构建静态站点（vite-ssg 生成 → dist/ 目录）
      - name: Build
        run: npm run build

      # 5. 配置 SSH —— 写入私钥并信任目标服务器主机密钥
      - name: Setup SSH
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          ssh-keyscan -H ${{ secrets.SSH_HOST }} >> ~/.ssh/known_hosts

      # 6. 通过 rsync 增量同步到目标服务器
      # 显式加上了 -e "ssh -i ~/.ssh/id_rsa" 确保 100% 认领私钥
      - name: Deploy to Server
        run: |
          rsync -avz --delete \
            -e "ssh -i ~/.ssh/id_rsa" \
            ./dist/ \
            ${{ secrets.SSH_USER }}@${{ secrets.SSH_HOST }}:${{ secrets.TARGET_DIR }}