text: 'use strict'
  const path = require('path')
  const defaultSettings = require('./src/settings.js')
  
  function resolve(dir) {
    return path.join(__dirname, dir)
  }
  
  const name = defaultSettings.title || '电子保函系统' // page title
  
  // If your port is set to 80,
  // use administrator privileges to execute the command line.
  // For example, Mac: sudo npm run
  // You can change the port by the following methods:
  // port = 9528 npm run dev OR npm run dev --port = 9528
  const port = process.env.port || process.env.npm_config_port || 9528 // 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: process.env.NODE_ENV === 'development',
    productionSourceMap: false,
    devServer: {
      port: port,
      open: true,
      // overlay: {
      //   warnings: false,
      //   errors: true
      // },
      proxy: {
        '/bg': {
          target: 'http://api.sanrz.com:81/',
          changeOrigin: true,
          ws: false
          // pathRewrite: { '^/jeecg-boot': '' }
        }
      }
      // before: require('./mock/mock-server.js')
    },
  
    css: {
      // 配置全局
      loaderOptions: {
        sass: {
          data:
          `@import "~@/styles/variables.scss";
           @import "~@/styles/mixin.scss";
          `
        }
      }
    },
    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')
        }
      }
    },
    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')
          }
        )
    }
  }
  