const path = require('path')
const {
  publicPath,
  assetsDir,
  outputDir,
  lintOnSave,
  transpileDependencies,
  title,
  devPort,
  providePlugin,
  donation,
  webpackBarName,
  webpackBanner,
  donationConsole,
} = require('./src/config')
const { dateFormat } = require('./src/utils/date')

if (donation) donationConsole()
const { version, author } = require('./package.json')
const Webpack = require('webpack')
const WebpackBar = require('webpackbar')
const CompressionPlugin = require('compression-webpack-plugin')
const time = dateFormat(new Date())
process.env.VUE_APP_TITLE = title || '企业信息平台'
process.env.VUE_APP_AUTHOR = author || 'Hotent'
process.env.VUE_APP_UPDATE_TIME = time
process.env.VUE_APP_VERSION = version

const resolve = (dir) => path.join(__dirname, dir)
const mockServer = () => {
  if (process.env.NODE_ENV === 'development') return require('./mock')
  else return ''
}

module.exports = {
  publicPath,
  assetsDir,
  outputDir,
  lintOnSave: false,
  transpileDependencies,
  devServer: {
    hot: true,
    port: devPort,
    open: true,
    noInfo: false,
    overlay: {
      warnings: true,
      errors: true,
    },
    after: mockServer(),
  },
  configureWebpack(config) {
    //解决打包后图标乱码问题
    const sassLoader = require.resolve('sass-loader')
    config.module.rules
      .filter((rule) => {
        return rule.test.toString().indexOf('scss') !== -1
      })
      .forEach((rule) => {
        rule.oneOf.forEach((oneOfRule) => {
          const sassLoaderIndex = oneOfRule.use.findIndex(
            (item) => item.loader === sassLoader
          )
          oneOfRule.use.splice(sassLoaderIndex, 0, {
            loader: require.resolve('css-unicode-loader'),
          })
        })
      })
    const resultConfig = {
      resolve: {
        alias: {
          '@': resolve('src'),
        },
      },
      plugins: [
        new Webpack.IgnorePlugin({
          resourceRegExp: /^\.\/locale$/,
          contextRegExp: /moment$/,
        }),
        new Webpack.ProvidePlugin(providePlugin),
        new WebpackBar({
          name: webpackBarName,
        }),
      ],
    }
    if (process.env.NODE_ENV !== 'development') {
      resultConfig.plugins.push(
        new CompressionPlugin({
          // 要压缩的文件类型
          test: /\.js$|\.html$|\.css/,
          // 大于该尺寸的文件才压缩（单位byte)
          threshold: 10240,
          // 是否删除原文件
          deleteOriginalAssets: false,
        })
      )
    }
    return resultConfig
  },
  chainWebpack(config) {
    config.plugins.delete('preload')
    config.plugins.delete('prefetch')
    config.when(process.env.NODE_ENV !== 'development', (config) => {
      config.performance.set('hints', false)
      config.devtool('none')
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial',
          },
          elementUI: {
            name: 'chunk-elementUI',
            priority: 20,
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/,
          },
          fortawesome: {
            name: 'chunk-fortawesome',
            priority: 20,
            test: /[\\/]node_modules[\\/]_?@fortawesome(.*)/,
          },
        },
      })
      config
        .plugin('banner')
        .use(Webpack.BannerPlugin, [`${webpackBanner}${time}`])
        .end()
      config.module
        .rule('images')
        .use('image-webpack-loader')
        .loader('image-webpack-loader')
        .options({
          bypassOnDebug: true,
        })
        .end()
    })
  },
  runtimeCompiler: true,
  productionSourceMap: false,
  css: {
    requireModuleExtension: true,
    sourceMap: true,
    loaderOptions: {
      scss: {
        additionalData(content, loaderContext) {
          const { resourcePath, rootContext } = loaderContext
          const relativePath = path.relative(rootContext, resourcePath)
          if (
            relativePath.replace(/\\/g, '/') !== 'src/styles/variables.scss'
          ) {
            return '@import "~@/styles/variables.scss";' + content
          }
          return content
        },
      },
    },
  },
}