const glob = require('glob')
const path = require('path')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin')
const TerserPlugin = require('terser-webpack-plugin')

module.exports = {
  entry: glob.sync('./!(static)/static/webpack/**?(-)index.js').reduce((obj, el) => {
    obj[path.parse(el).name] = './' + el
    return obj
  }, {}),
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, './staticfiles/generated/webpack'),
    clean: true
  },
  plugins: [
    new MiniCssExtractPlugin()
  ],
  optimization: {
    minimizer: [
      '...',
      new CssMinimizerPlugin({
        parallel: true
      }),
      new TerserPlugin({
        parallel: true,
        terserOptions: {
          mangle: true,
          compress: {
            drop_console: true
          }
        }
      })
    ]
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        sideEffects: true,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader'
        ]
      },
      {
        test: /\.(jpe?g|png|gif)$/i,
        type: 'asset/resource'
      },
      {
        test: /\.m?js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env']
          }
        }
      },
      {
        test: /\.js$/,
        enforce: 'pre',
        use: ['source-map-loader']
      },
      {
        test: require.resolve('jquery'),
        loader: 'expose-loader',
        options: {
          exposes: [
            {
              globalName: ['$'],
              override: true
            },
            {
              globalName: ['jQuery'],
              override: true
            },
            {
              globalName: ['window.jQuery'],
              override: true
            }
          ]
        }
      }
    ]
  }
}