'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')
const webpack = require('webpack');
const sass = require('sass')

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

const name = defaultSettings.title || 'wolf console' // 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 = 12188 npm run dev OR npm run dev --port = 12188
const port = process.env.port || 12188 // 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: '/',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  transpileDependencies: true,
  css: {
    loaderOptions: {
      sass: {
        implementation: sass,
        additionalData: `
          @use "sass:math";
        `,
        sassOptions: {
          indentedSyntax: false,
          logger: sass.Logger.silent
        }
      }
    },
    extract: true,
    sourceMap: 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,
    plugins: [
      new webpack.ProvidePlugin({
        process: 'process/browser',
      }),
    ],
    resolve: {
      alias: {
        '@': resolve('src'),
      },
      fallback: {
        path: require.resolve("path-browserify"),
        fs: false,
        crypto: require.resolve("crypto-browserify"),
        stream: require.resolve("stream-browserify"),
      },
    },
    module: {
      rules: [
        {
          test: /\.js$/,
          exclude: /node_modules/,
          use: {
            loader: 'babel-loader',
            options: {
              presets: [
                ['@vue/cli-plugin-babel/preset', {
                  useBuiltIns: 'usage',
                  corejs: 3,
                  exclude: [] // 确保这里是空数组
                }]
              ],
              plugins: [
                '@babel/plugin-proposal-optional-chaining',
                '@babel/plugin-proposal-nullish-coalescing-operator'
              ]
            }
          }
        }
      ]
    },
    // output: {
    //   clean: false
    // }
  },

  devServer: {
    host: '0.0.0.0',
    port: port, // CHANGE YOUR PORT HERE!
    https: false,
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test

    // 修正 SVG 规则
    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()
      .use('svgo-loader')
      .loader('svgo-loader')
      .options({
        plugins: [
          {
            name: 'removeAttrs',
            params: { attrs: 'fill' }
          }
        ]
      })
      .end()

    config
      .when(process.env.NODE_ENV === 'development',
        config => config.devtool('cheap-source-map')
      )

    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',
              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
                },
                commons: {
                  name: 'chunk-commons',
                  test: resolve('src/components'), // can customize your rules
                  minChunks: 3, //  minimum common number
                  priority: 5,
                  reuseExistingChunk: true,
                },
              },
            })
          // config.optimization.runtimeChunk('single')
        }
      )

    // 修改文件名hash长度
    config.output
      .filename('static/js/[name].[chunkhash:8].js')
      .chunkFilename('static/js/[name].[chunkhash:8].js');

    config.plugin('extract-css').tap(args => [{
      filename: 'static/css/[name].[contenthash:8].css',
      chunkFilename: 'static/css/[name].[contenthash:8].css'
    }]);

  },
}