webpack.config.js

const path = require("path");
const ReactRefreshWebpackPlugin = require("@pmmmwh/react-refresh-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");

let mode = "development";
let target = "web";
const plugins = [
    new CleanWebpackPlugin(),
    new MiniCssExtractPlugin(),
    new HtmlWebpackPlugin({
      template: "./src/index.html",
    }),
  ] 

if (process.env.NODE_ENV === "production") {
  mode = "production";
  target = "browserslist";
} 

if(process.env.SERVE) {
    plugins.push(new ReactRefreshWebpackPlugin())
}

module.exports = {
  mode: mode,
  target: target,
  entry: "./src/index.js",
  output: {
    path: path.resolve(__dirname, "dist"),
    assetModuleFilename: "images/[hash][ext]",
  },
  module: {
    rules: [
      {
        test: /\.(png|jpe?g|gif|svg)$/i,
        type: "asset",
      },
      {
        test: /\.(s[ac]|c)ss$/i,
        use: [
          { loader: MiniCssExtractPlugin.loader, options: { publicPath: "" } },
          "css-loader",
          "postcss-loader",
          "sass-loader",
        ],
      },
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
        },
      },
    ],
  },

  plugins: plugins,
  resolve: {
    extensions: [".js", ".jsx", ".ts", ".tsx"],
  },
  devtool: "source-map",
  devServer: {
    static: "./dist",
    hot: true,
  },
};