import { Button } from 'ant-design-vue';
        ↓ ↓ ↓ ↓ ↓ ↓
import { Button } from 'ant-design-vue';
import 'ant-design-vue/es/button/style/index.js';

import { ElButton } from 'element-plus';
        ↓ ↓ ↓ ↓ ↓ ↓
// dev
import { Button } from 'element-plus';
import 'element-plus/lib/theme-chalk/el-button.css`;
// prod
import Button from 'element-plus/lib/el-button';
import 'element-plus/lib/theme-chalk/el-button.css';

import { UserConfigExport } from 'vite'
import {
  createStyleImportPlugin,
  AndDesignVueResolve,
  VantResolve,
  ElementPlusResolve,
  NutuiResolve,
  AntdResolve,
} from 'vite-plugin-style-import'
export default (): UserConfigExport => {
  return {
    // 1. If you are using the ant-design series, you need to configure this
    // 2. Make sure less is installed in the dependency `yarn add less -D`
    css: {
      preprocessorOptions: {
        less: {
          javascriptEnabled: true,
        },
      },
    },
    plugins: [
      createStyleImportPlugin({
        resolves: [
          AndDesignVueResolve(),
          VantResolve(),
          ElementPlusResolve(),
          NutuiResolve(),
          AntdResolve(),
        ],
        libs: [
          // If you don’t have the resolve you need, you can write it directly in the lib, or you can provide us with PR
          {
            libraryName: 'ant-design-vue',
            esModule: true,
            resolveStyle: (name) => {
              return `ant-design-vue/es/${name}/style/index`
            },
          },
        ],
      }),
    ],
  }
}

{
  // Import names that meet this rule will take effect. The default is null, which can be applied to resolveComponent and resolveStyle at the same time
  importTest?: Regexp;
  // Need to imported  library name
  libraryName: string;
  // Custom style file conversion
  resolveStyle: (name: string) => string;
  // Name conversion for library export
  // default: paramCase
  libraryNameChangeCase?: LibraryNameChangeCase;
  // If the style file is not .css suffix. Need to turn on this option
  // default: false
  esModule?: boolean;
  /**
   * There may be some component libraries that are not very standardized.
   * You can turn on this to ignore to determine whether the file exists. Prevent errors when importing non-existent css files.
   * Performance may be slightly reduced after it is turned on, but the impact is not significant
   * default: false
   */
  ensureStyleFile?: boolean;
}
// LibraryNameChangeCase
export type LibraryNameChangeCase = ChangeCaseType | ((name: string) => string);
export type ChangeCaseType =
  | 'camelCase'
  | 'capitalCase'
  | 'constantCase'
  | 'dotCase'
  | 'headerCase'
  | 'noCase'
  | 'paramCase'
  | 'pascalCase'
  | 'pathCase'
  | 'sentenceCase'
  | 'snakeCase';