webpack.config.js

import path from "path";
import Dotenv from "dotenv-webpack";
import MiniCssExtractPlugin from 'mini-css-extract-plugin';
import CssMinimizerPlugin from 'css-minimizer-webpack-plugin';

const isProduction = process.env.NODE_ENV == "production";

const config = {
  entry: "./server/static/js/app.js",
  output: {
    path: path.resolve("server", "static", "gen"),
  },
  plugins: [
    // Add your plugins here
    // Learn more about plugins from https://webpack.js.org/configuration/plugins/
    new MiniCssExtractPlugin(),
    new Dotenv(),
  ],
  module: {
    rules: [
      {
        test: /\.css$/i,
        use: [MiniCssExtractPlugin.loader, 'css-loader'],
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2|png|jpg|gif)$/i,
        type: "asset",
      },

      // Add your rules for custom modules here
      // Learn more about loaders from https://webpack.js.org/loaders/
    ],
  },
  optimization: {
    minimizer: [
      '...',
      new CssMinimizerPlugin(),
    ],
  },
};

export default () => {
  if (isProduction) {
    config.mode = "production";
  } else {
    config.mode = "development";
  }
  return config;
};