;
// import { getBasePathConfig } from '@/utils/baseUrl'

const path = require('path');
const defaultSettings = require('./src/settings.js');

const merge = require('webpack-merge');
const CopyWebpackPlugin = require('copy-webpack-plugin');

function resolve(dir) {
	return path.join(__dirname, dir);
}

const name = defaultSettings.title; // page title
const port = 9527; // dev port


// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
	/**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
	publicPath: '/',
	outputDir: 'dist',
	assetsDir: 'static',
	lintOnSave: false,
	productionSourceMap: false,
	devServer: {
		port: port,
		open: true,
		overlay: {
			warnings: false,
			errors: true
		}
		// proxy: {
		//   // change xxx-api/login => mock/login
		//   // detail: https://cli.vuejs.org/config/#devserver-proxy
		//   [process.env.VUE_APP_BASE_API]: {
		//     target: `http://localhost:${port}/mock`,
		//     changeOrigin: true,
		//     pathRewrite: {
		//       ['^' + process.env.VUE_APP_BASE_API]: ''
		//     }
		//   }
		// },
		// after: require('./mock/mock-server.js')
	},
	configureWebpack: {
		// provide the app's title in webpack's name field, so that
		// it can be accessed in index.html to inject the correct title.
		name: name,
		resolve: {
			alias: {
				'@': resolve('src')
			}
		},
		plugins: [
			new CopyWebpackPlugin([
				{
					from: path.resolve(__dirname, './static'),
					to: 'static',
					ignore: ['.*']
				}
			])
		]
	},
	chainWebpack(config) {
		config.plugins.delete('preload'); // TODO: need test
		config.plugins.delete('prefetch'); // TODO: need test

		// set svg-sprite-loader
		config.module
			.rule('svg')
			.exclude.add(resolve('src/icons'))
			.end();
		config.module
			.rule('icons')
			.test(/\.svg$/)
			.include.add(resolve('src/icons'))
			.end()
			.use('svg-sprite-loader')
			.loader('svg-sprite-loader')
			.options({
				symbolId: 'icon-[name]'
			})
			.end();

		// set preserveWhitespace
		config.module
			.rule('vue')
			.use('vue-loader')
			.loader('vue-loader')
			.tap(options => {
				options.compilerOptions.preserveWhitespace = true;
				return options;
			})
			.end();

		config
			// https://webpack.js.org/configuration/devtool/#development
			.when(process.env.NODE_ENV === 'development',
				config => config.devtool('cheap-source-map')
			);

		config
			.when(process.env.NODE_ENV !== 'development',
				config => {
					config
						.plugin('ScriptExtHtmlWebpackPlugin')
						.after('html')
						.use('script-ext-html-webpack-plugin', [{
							// `runtime` must same as runtimeChunk name. default is `runtime`
							inline: /runtime\..*\.js$/
						}])
						.end();
					config
						.optimization.splitChunks({
							chunks: 'all',
							cacheGroups: {
								libs: {
									name: 'chunk-libs',
									test: /[\\/]node_modules[\\/]/,
									priority: 10,
									chunks: 'initial' // only package third parties that are initially dependent
								},
								elementUI: {
									name: 'chunk-elementUI', // split elementUI into a single package
									priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
									test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
								},
								commons: {
									name: 'chunk-commons',
									test: resolve('src/components'), // can customize your rules
									minChunks: 3, //  minimum common number
									priority: 5,
									reuseExistingChunk: true
								}
							}
						});
					config.optimization.runtimeChunk('single');
				}
			);
	},

};