const path = require('path')
const webpack = require('webpack')
const CompressionWebpackPlugin = require('compression-webpack-plugin')
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
const CopyWebpackPlugin = require('copy-webpack-plugin')
const productionGzipExtensions = ['js', 'css']
function resolve(dir) {
  return path.join(__dirname, dir)
}

// vue.config.js
module.exports = {
  /*
    Vue-cli3:
    Crashed when using Webpack `import()` #2463
    https://github.com/vuejs/vue-cli/issues/2463

   */
  /*
  pages: {
    index: {
      entry: 'src/main.js',
      chunks: ['chunk-vendors', 'chunk-common', 'index']
    }
  },
  */
  configureWebpack: {
    plugins: [
      // Ignore all locale files of moment.js
      new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
      // 配置compression-webpack-plugin压缩
      new BundleAnalyzerPlugin(),
      new CopyWebpackPlugin([
        // 把微信的验证文件拷贝到dist下
        {
          from: './robots.txt',
          to: '../dist/'
        }
      ]),
      new CompressionWebpackPlugin({
        filename: '[path].gz[query]',
        algorithm: 'gzip',
        test: new RegExp('\\.(' + productionGzipExtensions.join('|') + ')$'),
        threshold: 10240,
        minRatio: 0.8
      })
    ]
  },

  chainWebpack: (config) => {
    config.resolve.alias
      .set('@$', resolve('src'))

    const svgRule = config.module.rule('svg')
    svgRule.uses.clear()
    svgRule
      .oneOf('inline')
      .resourceQuery(/inline/)
      .use('vue-svg-icon-loader')
      .loader('vue-svg-icon-loader')
      .end()
      .end()
      .oneOf('external')
      .use('file-loader')
      .loader('file-loader')
      .options({
        name: 'assets/[name].[hash:8].[ext]'
      })
    /* svgRule.oneOf('inline')
      .resourceQuery(/inline/)
      .use('vue-svg-loader')
      .loader('vue-svg-loader')
      .end()
      .end()
      .oneOf('external')
      .use('file-loader')
      .loader('file-loader')
      .options({
        name: 'assets/[name].[hash:8].[ext]'
      })
    */
  },

  css: {
    loaderOptions: {
      less: {
        modifyVars: {
          /* less 变量覆盖，用于自定义 ant design 主题 */

          /*
          'primary-color': '#F5222D',
          'link-color': '#F5222D',
          'border-radius-base': '4px',
          */
        },
        javascriptEnabled: true
      }
    }
  },

  // devServer: {
  //   // development server port 8001
  //   historyApiFallback: true,
  //   disableHostCheck: true,
  //   port: 8080,
  //   proxy: {
  //     '/': {
  //       target: 'http://localhost:8082/',
  //       // secure: false,  // 如果是https接口，需要配置这个参数
  //       ws: false,
  //       changeOrigin: true // 如果接口跨域，需要进行这个参数配置
  //     }
  //   }
  // },

  // disable source map in production
  productionSourceMap: false,
  lintOnSave: undefined,
  // babel-loader no-ignore node_modules/*
  transpileDependencies: []
}