const CssColorExtractPlugin = require('css-color-extract-plugin').default;
const PRIMARY_COLOR = '#1890ff';
module.exports = {
    ...
    module: {
        rules: [
          {
            test: /\.css$/,
            exclude: '/\.module\.css$/',
            use: [
                "style-loader", 
                "css-loader", 
                {
                  loader: CssColorExtractPlugin.loader,
                  options: {
                    colors: [ PRIMARY_COLOR ]
                  }
              },
           ]
        },
        {
            test:  /\.module\.css$/,
            use: [
                "style-loader", 
                 {
                   loader: "css-loader", 
                   options: {
                     modules: true,
                     localIdentName: '[path][name]__[local]',
                   }
								},
                {
                    loader: CssColorExtractPlugin.loader,
                    options: {
                    colors: [ PRIMARY_COLOR ],
                    modules: true,
                    localIdentName: '[path][name]__[local]',
                  }
               },
            ]
        }
      ]
    }
   ...
   	plugins: [
      ...
      new CssColorExtractPlugin({ fileName: 'theme' }),
     ]
};

window.CSS_EXTRACT_COLOR_PLUGIN = [
  {"source":".src-App-module__example {  background: #1890ff;}","fileName":"App.module.scss","matchColors":["#1890ff"]},
  {"source":".src-controller-blog-components-Header-Header-module__theme {  color: #067785;}.src-controller-blog-components-Header-Header-module__pc_header {  background: #1890ff;}.src-controller-blog-components-Header-Header-module__mb_header {  background: #1890ff;}.src-controller-blog-components-Header-Header-module__mb_header .src-controller-blog-components-Header-Header-module__mb_nav {  background: #1890ff;}","fileName":"Header.module.scss","matchColors":["#1890ff"]}
];

import React, { Component } from 'react';
import styles from './App.module.scss';
import { SketchPicker } from 'react-color';

function replaceColor(source, color, replaceColor) {
	return source.replace(new RegExp(`(:.*?\\s*)(${color})(\\b.*?)(?=})`, 'mig'), (group) => {
		return group.replace(new RegExp(`${color}`, 'mig'), replaceColor);
	});
}

const PRIMARY_COLOR = '#1890ff';

class App extends Component {
	
	async setColor(color) {
		const styleData = window.CSS_EXTRACT_COLOR_PLUGIN || [];
		const cssText = styleData.map((item) => item.source).join('');
		const styleText = replaceColor(cssText, PRIMARY_COLOR, color);
		const style = document.createElement('style');
		style.innerHTML = styleText;
		document.body.appendChild(style);
	}
	render() {
		return (
			<div className={styles['example']}>
				<SketchPicker onChangeComplete={(colorResult) => this.setColor(colorResult.hex)} />
			</div>
		);
	}
}

export default App;

 {
	colors: string[]; // 匹ひき配はい的てき颜色数すう组，如果出で现颜色しょく层次错误覆盖的情じょう况，需要じゅよう选上被覆ひふく盖的颜色，可か通どおり过该选项在ざい不同ふどう的てき文ぶん件けん提ひっさげ取ど不同ふどう的てき颜色
	only?: boolean = true; // 仅提取と选中颜色规则，否いや则会将はた整せい个文件けん提ひっさげ取ど进去
	modules?: boolean = false; 
	localIdentName?: string = '';
}

  {
    fileName?: string; // 提ひっさげ取ど颜色的てき文ぶん件名けんめい,不ふ提供ていきょう则直接ちょくせつ嵌はま在ざい script标签中ちゅう
    json?: boolean = false; // 提起ていき到いたjson
	  variableName?: string = 'CSS_EXTRACT_COLOR_PLUGIN'; // 挂载到window的てき变量名めい， 默だま认 CSS_EXTRACT_COLOR_PLUGIN
}