import { defineConfig } from 'vite';
import vue from '@vitejs/plugin-vue';
import { resolve } from 'path';
import Compression from 'vite-plugin-compression';
import Components from 'unplugin-vue-components/vite';
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers';
import { EleAdminResolver } from 'ele-admin-plus/es/utils/resolvers';
// 1. 导入 VitePWA 插件
import { VitePWA } from 'vite-plugin-pwa'

export default defineConfig(({ command }) => {
  const isBuild = command === 'build';
  const alias = {
    '@/': resolve('src') + '/',
    'vue-i18n': 'vue-i18n/dist/vue-i18n.cjs.js'
  };
  const plugins = [
    vue(),
    VitePWA({
      injectRegister: 'auto',
      devOptions: {
        enabled: process.env.NODE_ENV === 'development', // 开发模式也启用
        type: 'module' // 现代浏览器支持
      },
      includeAssets: ['favicon.ico', 'robots.txt'],
      strategies: 'injectManifest', // 使用自定义SW模式
      srcDir: 'public',
      filename: 'sw.js',           // 你的自定义SW文件名
      // 核心配置项
      registerType: 'autoUpdate', // 更新策略：autoUpdate(自动) 或 prompt(手动)
      workbox: {
        cleanupOutdatedCaches: true,
        maximumFileSizeToCacheInBytes: 10 * 1024 * 1024, // 10MB
        sourcemap: true,
        // Workbox 配置
        globPatterns: ['**/*.{js,css,html,ico,png,svg,webp,woff2}'],
        skipWaiting: true,       // 新SW立即接管控制
        clientsClaim: true,      // 立即控制现有客户端
        navigateFallback: '/index.html', // SPA 回退路由
      },
      // 应用清单配置
      manifest: {
        name: '我的应用',
        short_name: '应用',
        start_url: '/',
        display: 'standalone',
        background_color: '#ffffff',
        theme_color: '#42b883',
        icons: [
          {
            src: 'icon-192.png',
            sizes: '192x192',
            type: 'image/png'
          },
          {
            src: 'icon-512.png',
            sizes: '512x512',
            type: 'image/png'
          }
        ]
      }
    })
  ];
  if (isBuild) {
    // 组件按需引入
    plugins.push(
      Components({
        dts: false,
        resolvers: [
          ElementPlusResolver({
            importStyle: 'sass'
          }),
          EleAdminResolver({
            importStyle: 'sass'
          })
        ]
      })
    );
    // gzip压缩
    plugins.push(
      Compression({
        disable: !isBuild,
        threshold: 10240,
        algorithm: 'gzip',
        ext: '.gz'
      })
    );
  } else {
    // 开发环境全局安装
    alias['./as-needed'] = './global-import';
  }
  return {
    base: '',
    resolve: { alias },
    plugins,
    server: {
      allowedHosts: ['a.tcp.run']
    },
    css: {
      preprocessorOptions: {
        scss: {
          additionalData: `@use "@/styles/variables.scss" as *;`
        }
      }
    },
    optimizeDeps: {
      include: [
        'echarts/core',
        'echarts/charts',
        'echarts/renderers',
        'echarts/components',
        'vue-echarts',
        'echarts-wordcloud',
        'sortablejs',
        'vuedraggable'
      ]
    },
    build: {
      target: 'chrome63',
      chunkSizeWarningLimit: 4000
    }
  };
});