var path = require('path')
var utils = require('./utils')
var config = require('../config')
var vueLoaderConfig = require('./vue-loader.conf')
const webpack = require('webpack')
const manifest = require('../vendor-manifest.json')

// Gzip
const CompressionPlugin = require("compression-webpack-plugin");

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

module.exports = {
  entry: {
    // app: './src/main.js',
    app: ['babel-polyfill', './src/main.js']
  },
  // 防止有依赖关联到fs而报错，浏览器不让用 fs
  node: {
    fs: "empty"
  },
  output: {
    path:process.env.NODE_ENV === 'production'? config.build.assetsRoot:config.test.assetsRoot,
    filename: '[name].js',
    publicPath: process.env.NODE_ENV === 'production'
      ? config.build.assetsPublicPath
      :process.env.NODE_ENV === 'test'
      ?config.test.assetsPublicPath
      :config.dev.assetsPublicPath
  },
  resolve: {
    extensions: ['.js', '.vue', '.json'],
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      '@': resolve('src'),
      'scss_global': '@/styles/global.scss',
      'api': '@/api',
      'utils': '@/utils',
      'components': '@/components',
      'common': '@/common'
    }
  },
  externals:{
	  "vue":"Vue",
    "jQuery": "jQuery"
  },
  plugins: [
    new webpack.DllReferencePlugin({
      manifest
    }),

    new CompressionPlugin({
      algorithm: "gzip",
      test: /\.js$|\.html$|\.css$/, // 匹配文件名
      minRatio: 0.8, // 压缩率小于1才会压缩
      threshold: 10240, // 对超过10k的数据压缩
      deleteOriginalAssets: false, // 是否删除未压缩的源文件
    }),
    // new webpack.ProvidePlugin({
    //   $: "jquery",
    //   jQuery: "jquery",
    //   'window.jQuery': 'jquery',
    //   jQuery: 'jquery'
    // })
  ],
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: vueLoaderConfig
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        include: [
          resolve('src'),
          resolve('static'),
          resolve('/node_modules/element-ui'),
        ]
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('img/[name].[hash:7].[ext]')
        }
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
        }
      }
    ]
  }
}