'use strict'

process.env.BABEL_ENV = 'web'

const path = require('path')
const webpack = require('webpack')

const MinifyPlugin = require("babel-minify-webpack-plugin");
const CopyWebpackPlugin = require('copy-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const TerserPlugin = require('terser-webpack-plugin');
const { VueLoaderPlugin } = require('vue-loader')

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

let webConfig = {
  devtool: '#cheap-module-eval-source-map',
  entry: {
    web: resolve('src/renderer/main.js')
  },
  module: {
    rules: [
      // {
      //   test: /\.(js|vue)$/,
      //   enforce: 'pre',
      //   exclude: /node_modules/,
      //   use: {
      //     loader: 'eslint-loader',
      //     options: {
      //       formatter: require('eslint-friendly-formatter')
      //     }
      //   }
      // },
      {
        test: /\.scss$/,
        use: ['vue-style-loader', 'css-loader', 'sass-loader']
      },
      {
        test: /\.sass$/,
        use: ['vue-style-loader', 'css-loader', 'sass-loader?indentedSyntax']
      },
      {
        test: /\.less$/,
        use: ['vue-style-loader', 'css-loader', 'less-loader']
      },
      {
        test: /\.css$/,
        use: ['vue-style-loader', 'css-loader']
      },
      {
        test: /\.html$/,
        use: 'vue-html-loader'
      },
      {
        test: /\.js$/,
        use: 'babel-loader',
        include: [resolve('src/renderer')],
        exclude: /node_modules/
      },
      {
        test: /\.vue$/,
        use: {
          loader: 'vue-loader',
          options: {
            extractCSS: true,
            loaders: {
              sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax=1',
              scss: 'vue-style-loader!css-loader!sass-loader',
              less: 'vue-style-loader!css-loader!less-loader'
            }
          }
        }
      },
      {
        test: /\.svg$/,
        loader: 'svg-sprite-loader',
        include: [resolve('src/renderer/icons')],
        options: {
          symbolId: 'icon-[name]'
        }
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        exclude: [resolve('src/renderer/icons')],
        use: {
          loader: 'url-loader',
          query: {
            esModule: false,
            limit: 10000,
            name: 'imgs/[name].[ext]'
          }
        },
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        use: {
          loader: 'url-loader',
          query: {
            esModule: false,
            limit: 10000,
            name: 'fonts/[name].[ext]'
          }
        }
      }
    ]
  },
  plugins: [
    new VueLoaderPlugin(),
    new MiniCssExtractPlugin({ filename: 'styles.css' }),
    new HtmlWebpackPlugin({
      filename: 'index.html',
      template: path.resolve(__dirname, '../src/index.ejs'),
      minify: {
        collapseWhitespace: true,
        removeAttributeQuotes: true,
        removeComments: true
      },
      nodeModules: false
    }),
    new webpack.DefinePlugin({
      'process.env.IS_WEB': 'true'
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoEmitOnErrorsPlugin()
  ],
  output: {
    filename: '[name].js',
    path: path.join(__dirname, '../dist/web')
  },
  resolve: {
    alias: {
      '@': path.join(__dirname, '../src/renderer'),
      'vue$': 'vue/dist/vue.esm.js'
    },
    extensions: ['.js', '.vue', '.json', '.css']
  },
  target: 'web'
}

/**
 * Adjust webConfig for production settings
 */
if (process.env.NODE_ENV === 'production') {
  webConfig.devtool = ''

  webConfig.plugins.push(
    new MinifyPlugin(),
    new CopyWebpackPlugin({
      patterns: [
        {
          from: path.join(__dirname, '../static'),
          to: path.join(__dirname, '../dist/electron/static'),
          globOptions: {
            ignore: ['.*']
          }
        }
      ]
    }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': '"production"'
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  )
  webConfig.optimization = {
    splitChunks: {
      chunks: "async",
      cacheGroups: {
        vendor: { // 将第三方模块提取出来
          minSize: 30000,
          minChunks: 1,
          test: /node_modules/,
          chunks: 'initial',
          name: 'vendor',
          priority: 1
        },
        commons: {
          test: /[\\/]src[\\/]common[\\/]/,
          name: 'commons',
          minSize: 30000,
          minChunks: 3,
          chunks: 'initial',
          priority: -1,
          reuseExistingChunk: true // 这个配置允许我们使用已经存在的代码块
        }
      }
    },
    runtimeChunk: { name: 'runtime' },
    minimizer: [
      new TerserPlugin({
        test: /\.js(\?.*)?$/i,
        extractComments: false,
        cache: false,
        sourceMap: false,
        terserOptions: {
          warnings: false,
          compress: {
            warnings: false,
            drop_console: true,
            drop_debugger: true,
            pure_funcs: ['console.log']
          },
          output: {
            comments: false,
          },
        }
      })]
  }
}

module.exports = webConfig