import { defineConfig  } from 'vite'
import vue from '@vitejs/plugin-vue'
import { resolve } from 'path'
import fs from 'fs';
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
import Icons from 'unplugin-icons/vite'
import IconsResolver from 'unplugin-icons/resolver'
import topLevelAwait from 'vite-plugin-top-level-await'
// 手动导入
import ElementPlus from 'unplugin-element-plus/vite'
// https://vitejs.dev/config/
export default defineConfig(({ mode}) => {
  return{
    base: './',
    css: {
      preprocessorOptions: {
        scss: {
          // 自定义的主题色
          additionalData: `@use "@/assets/style/element/index.scss" as *;`,
        },
      },
    },
    plugins: [
      vue(),
      ElementPlus({
        useSource: true,
      }),
      AutoImport({
        imports: ["vue", "vue-router"],
        resolvers: [
          IconsResolver(),
          ElementPlusResolver({
            // 自动引入修改主题色添加这一行，使用预处理样式，不添加将会导致使用ElMessage，ElNotification等组件时默认的主题色会覆盖自定义的主题色
            // importStyle: "sass",
            importStyle: mode === "development" ? false : "sass",
          })
        ],
      }),
      Components({
        resolvers: [
          IconsResolver(),
          ElementPlusResolver({
            // 自动引入修改主题色添加这一行，使用预处理样式
            // importStyle: "sass",
            importStyle: mode === "development" ? false : "sass",
          })
        ],
      }),
      Icons({
        autoInstall: true,
      }),
      topLevelAwait({
        // The export name of top-level await promise for each chunk module
        promiseExportName: '__tla',
        // The function to generate import names of top-level await promise in each chunk module
        promiseImportName: i => `__tla_${i}`
      })
    ],
    server: {
      host: '0.0.0.0',	//解决“vite use `--host` to expose”
      port: 8080,
      open: false,
      hmr:true,
      cors: true, // 允许跨域
      proxy: {
        '/api': {
          target: "http://idea-ad.wenxingshuju.com",
          changeOrigin: true,
          secure: false,
        },
      }
    },
    resolve:{
      alias:[
        {
          find:'@',
          replacement:resolve(__dirname,'src')
        }
      ]
    },
    build: {
      outDir: "dist",
      // outDir:'../',
      // /** 打包后静态资源目录 */
      // assetsDir: "./static",
      sourcemap: false,
      minify: 'terser',
      chunkSizeWarningLimit: 1500,
      // terserOptions: {
      //   compress: {
      //     drop_console: true,
      //     drop_debugger: true
      //   }
      // },
      rollupOptions: {
        output: {
          manualChunks(id) {
            if (id.includes('node_modules')) {
              return id
                  .toString()
                  .split('node_modules/')[1]
                  .split('/')[0]
                  .toString();
            }
          },
          chunkFileNames: (chunkInfo) => {
            const facadeModuleId = chunkInfo.facadeModuleId
                ? chunkInfo.facadeModuleId.split('/')
                : [];
            const fileName =
                facadeModuleId[facadeModuleId.length - 2] || '[name]';
            return `js/${fileName}/[name].[hash].js`;
          }
        }
      }
    },
  }
})