const webpack = require('webpack');
const path = require('path');
const os = require('os');
// HappyPack是让webpack对loader的执行过程，从单一进程形式扩展为多进程模式，也就是将任务分解给多个子进程去并发的执行，子进程处理完后再把结果发送给主进程。从而加速代码构建 与 DLL动态链接库结合来使用更佳。
const HappyPack = require('happypack');
const happyThreadPool = HappyPack.ThreadPool({ size: os.cpus().length });
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');

export default{
  // es5ImcompatibleVersions: true,
  entry: "src/index.js",
  extraBabelPlugins: [
    //"transform-decorators-legacy",
    [
      "import",
      { "libraryName": "antd", "libraryDirectory": "es", "style": true }
    ]
  ],
  alias: {
    '@constants': path.join(__dirname, './src/constants'),
    '@common': path.join(__dirname, './src/common'),
    '@utils': path.join(__dirname, './src/utils'),
    '@services': path.join(__dirname, './src/services'),
    '@assets': path.join(__dirname, './src/assets'),
    '@mapModule': path.join(__dirname, './src/routes/Command/mapModule'),
    '@gis': path.join(__dirname, './src/routes/Command/GIS'),
    '@': path.join(__dirname, './src'),
  },
  env: {
    development: {
      "extraBabelPlugins": ["dva-hmr"],
      "publicPath": "/",
      disableDynamicImport: true,
      module: {
        rules: [
          {
            test: /\.js$/,
            // 将.js 文件交给id为 js 的happypack实例来执行
            use: 'happypack/loader?id=js'
          },
          {
            test: /\.(css|less)$/,
            // 将.less 文件交给id为 styles 的happypack实例来执行
            use: 'happypack/loader?id=styles'
          }
        ]
      },
      plugins: [
        new HappyPack({
          id: 'js',
          threadPool: happyThreadPool,
          loaders: [ 'babel-loader' ]
        }),
        new HappyPack({
          id: 'styles',
          threadPool: happyThreadPool,
          loaders: [ 'style-loader', 'css-loader', 'less-loader' ]
        })
      ]
    },
    production: {
      "publicPath": "/",
      disableDynamicImport: false,
      plugins: [
        // 允许错误不打断程序
        new webpack.NoEmitOnErrorsPlugin(),
        // 作用域提升
        new webpack.optimize.ModuleConcatenationPlugin(),

      ],
      optimization: {
        minimizer: [
          // webpack.optimize.UglifyJsPlugin has been removed, please use config.optimization.minimize instead.
          // new webpack.optimize.UglifyJsPlugin({
          new UglifyJsPlugin({
            cache: true,
            parallel: true,
            sourceMap: false,
            uglifyOptions: {
              //删除注释
              output:{
                  comments:true
              },
              //删除console 和 debugger  删除警告
              compress:{
                  warnings:false,
                  drop_debugger:true,
                  drop_console:true
              }
            }
          })
          // new BabiliPlugin()
          // new TerserPlugin()
        ]
      }
    }
  },
  proxy: {
    // "/": {
    //   "target": "http://192.168.30.182:7080",
    //   "changeOrigin": true,
    // },
    // "/v5_api": {
    //   "target": "http://192.168.30.182:7080",
    //   "changeOrigin": true,
    //   pathRewrite:{
    //     '^/v5_api':''
    //   }
    // },
    // "/v5_base": {
    //   "target": "http://117.78.35.63:8080",
    //   "changeOrigin": true,
    //   pathRewrite:{
    //     '^/v5_base':''
    //   }
    // },
    // "/v5_base_https": {
    //   "target": "https://117.78.35.63",
    //   "changeOrigin": true,
    //   pathRewrite:{
    //     '^/v5_base_https':''
    //   }
    // }
  },
  externals: {
    "g2": "G2",
    "g-cloud": "Cloud",
    "g2-plugin-slider": "G2.Plugin.slider"
  },
  ignoreMomentLocale: true,
  theme: "./src/theme.js",
  html: {
    "template": "./src/index.ejs"
  },
  // disableDynamicImport: true,
  hash: true
}