text: "use strict";
  
  const path = require("path");
  
  const webpack = require("webpack");
  const HtmlPlugin = require("html-webpack-plugin");
  const CopyPlugin = require("copy-webpack-plugin");
  const HtmlTagsPlugin = require("html-webpack-tags-plugin");
  const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');
  
  module.exports = (_env, args) => {
    const prod = args.mode === "production";
    return {
      context: __dirname,
      devServer: {
        hot: true,
        port: 3000,
        open: true,
      },
      devtool: !prod ? void 0 : "eval-source-map",
      entry: "./src",
      externals: {
        cesium: "Cesium",
      },
      mode: prod ? "production" : "development",
      module: {
        rules: [
          {
            test: /\.js$/,
            exclude: /node_modules/,
            use: {
              loader: "babel-loader",
              options: {
                plugins: prod ? [] : ["react-refresh/babel"],
              }
            },
          },
        ],
      },
      output: {
        path: path.join(__dirname, "build"),
      },
      plugins: [
        new webpack.DefinePlugin({
          CESIUM_BASE_URL: JSON.stringify("/cesium"),
        }),
        new CopyPlugin({
          patterns: [
            {
              from: `../node_modules/cesium/Build/Cesium${prod ? "" : "Unminified"}`,
              to: "cesium",
            },
          ],
        }),
        new HtmlPlugin({
          template: "index.html",
        }),
        new HtmlTagsPlugin({
          append: false,
          tags: ["cesium/Widgets/widgets.css", "cesium/Cesium.js"],
        }),
        ...(prod ? [] : [new webpack.HotModuleReplacementPlugin(), new ReactRefreshWebpackPlugin()]),
      ],
    };
  };
  