'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')
const webpack = require('webpack')
// const CopyWebpackPlugin = require('copy-webpack-plugin')
// gzip压缩
const CompressionWebpackPlugin = require('compression-webpack-plugin')
const productionGzipExtensions = ['js', 'css']

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

function hotServer () {
  const path = './server.config.js'
  delete require.cache[require.resolve(path)]

  const { serverOrigin } = require(path)
  return serverOrigin || ''
}

const name = defaultSettings.title || '' // 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 method:
// port = 9527 npm run dev OR npm run dev --port = 9527
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:
    process.env.ENV === 'production' ? '/irrigation-monitoring-platform' : '/',
  outputDir: 'dist',
  assetsDir: 'irrigation-monitoring-platform-static',
  lintOnSave: process.env.NODE_ENV === 'development',
  parallel: false, // 构建正式环境关闭thread-loader
  productionSourceMap: false,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      '/gatewayApi': {
        target: `http://125.77.202.162:24053`,
        changeOrigin: true
      },
      '/api': {
        // target: `http://192.168.15.102:8001`, // lingengxi
        // target: `http://192.168.15.101:8081`, // 文清
        target: `http://192.168.9.245:8001`, // 测试服务器
        // target: `http://192.168.15.46:8001`, // 吴志祥
        router: () => hotServer(),
        onProxyReq (proxyReq) {
          proxyReq.setHeader('referer', hotServer())
        },
        changeOrigin: true // 跨域
      }
    },
    disableHostCheck: true
  },
  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')
      }
    },
    amd: {
      toUrlUndefined: true
    },
    module: {
      rules: [
        {
          test: /\.js$/,
          use: {
            loader: '@open-wc/webpack-import-meta-loader'
          }
        }
      ],
      unknownContextCritical: false
    },
    plugins: [
      new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),

      // 下面是下载的插件的配置
      new CompressionWebpackPlugin({
        algorithm: 'gzip',
        test: new RegExp('\\.(' + productionGzipExtensions.join('|') + ')$'),
        threshold: 10240,
        minRatio: 0.8
      }),
      new webpack.optimize.LimitChunkCountPlugin({
        maxChunks: 9
      }),
      new webpack.optimize.MinChunkSizePlugin({
        minChunkSize: 100 * 1024 // Minimum number of characters
      })

      // cesium
      // new CopyWebpackPlugin({
      //   patterns: [
      //     { from: 'node_modules/cesium/Build/Cesium/Workers', to: 'cesium/Workers' }
      //   ]
      // }),
      // new CopyWebpackPlugin({
      //   patterns: [
      //     { from: 'node_modules/cesium/Build/Cesium/ThirdParty', to: 'cesium/ThirdParty' }
      //   ]
      // }),
      // new CopyWebpackPlugin({
      //   patterns: [
      //     { from: 'node_modules/cesium/Build/Cesium/Assets', to: 'cesium/Assets' }
      //   ]
      // }),
      // new CopyWebpackPlugin({
      //   patterns: [
      //     { from: 'node_modules/cesium/Build/Cesium/Widgets', to: 'cesium/Widgets' }
      //   ]
      // }),
      // new webpack.DefinePlugin({
      //   // Define relative base path in cesium for loading assets
      //   CESIUM_BASE_URL: JSON.stringify('./cesium')
      // })
    ]
  },
  chainWebpack (config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // 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()

    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',
        minSize: 1024 * 100,
        maxSize: 1024 * 1024 * 4,
        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
          },
          avue: {
            name: 'chunk-avue',
            priority: 20,
            test: /[\\/]node_modules[\\/]_?@smallwei(.*)/,
            reuseExistingChunk: true,
            chunks: 'async'
          },
          echarts: {
            name: 'chunk-echarts',
            priority: 12,
            test: /[\\/]node_modules[\\/]_?echarts(.*)/
            // reuseExistingChunk: true
          },
          // cesium: {
          //   name: 'chunk-echarts',
          //   priority: 12,
          //   test: /[\\/]node_modules[\\/]_?cesium(.*)/
          //   // reuseExistingChunk: true
          // },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
      config.optimization.runtimeChunk('single')
    })
  },
  css: {
    // 全局配置utils.scss,详细配置参考vue-cli官网
    loaderOptions: {
      sass: {
        prependData: `@import "@/styles/utils.scss";`
      },
      scss: {
        prependData: `@import "@/styles/utils.scss";@import "@/styles/variables.scss";`
      }
    }
  }
}