chore: Update @excalidraw/extensions configs.

src/packages/extensions/webpack.prod.config.js

@@ -1,17 +1,124 @@
-global.__childdir = __dirname;
 const path = require("path");
-const { merge } = require("webpack-merge");
-const commonConfig = require("../common.webpack.prod.config");
+const TerserPlugin = require("terser-webpack-plugin");
+const BundleAnalyzerPlugin =
+  require("webpack-bundle-analyzer").BundleAnalyzerPlugin;
+const autoprefixer = require("autoprefixer");
+const webpack = require("webpack");
+const { parseEnvVariables } = require("./env");
 
-const config = {
+module.exports = {
+  mode: "production",
   entry: {
     "excalidraw-extensions.production.min": "./index.ts",
   },
   output: {
     path: path.resolve(__dirname, "dist"),
     library: "ExcalidrawExtensionsLib",
+    libraryTarget: "umd",
+    filename: "[name].js",
     chunkFilename: "excalidraw-extensions-assets/[name]-[contenthash].js",
     assetModuleFilename: "excalidraw-extensions-assets/[name][ext]",
+    publicPath: "",
+  },
+  resolve: {
+    extensions: [".js", ".ts", ".tsx", ".css", ".scss"],
+  },
+  module: {
+    rules: [
+      {
+        test: /\.(sa|sc|c)ss$/,
+        exclude: /node_modules/,
+        use: [
+          "style-loader",
+          {
+            loader: "css-loader",
+          },
+          {
+            loader: "postcss-loader",
+            options: {
+              postcssOptions: {
+                plugins: [autoprefixer()],
+              },
+            },
+          },
+          "sass-loader",
+        ],
+      },
+      {
+        test: /\.(ts|tsx|js|jsx|mjs)$/,
+        exclude:
+          /node_modules\/(?!(browser-fs-access|canvas-roundrect-polyfill))/,
+
+        use: [
+          {
+            loader: "import-meta-loader",
+          },
+          {
+            loader: "ts-loader",
+            options: {
+              transpileOnly: true,
+              configFile: path.resolve(__dirname, "../tsconfig.prod.json"),
+            },
+          },
+          {
+            loader: "babel-loader",
+            options: {
+              presets: [
+                "@babel/preset-env",
+                ["@babel/preset-react", { runtime: "automatic" }],
+                "@babel/preset-typescript",
+              ],
+              plugins: [
+                "transform-class-properties",
+                "@babel/plugin-transform-runtime",
+              ],
+            },
+          },
+        ],
+      },
+      {
+        test: /\.(woff|woff2|eot|ttf|otf)$/,
+        type: "asset/resource",
+      },
+    ],
+  },
+  optimization: {
+    minimize: true,
+    minimizer: [
+      new TerserPlugin({
+        test: /\.js($|\?)/i,
+      }),
+    ],
+    splitChunks: {
+      chunks: "async",
+      cacheGroups: {
+        vendors: {
+          test: /[\\/]node_modules[\\/]/,
+          name: "vendor",
+        },
+      },
+    },
+  },
+  plugins: [
+    ...(process.env.ANALYZER === "true" ? [new BundleAnalyzerPlugin()] : []),
+    new webpack.DefinePlugin({
+      "process.env": parseEnvVariables(
+        path.resolve(__dirname, "../../../.env.production"),
+      ),
+    }),
+  ],
+  externals: {
+    react: {
+      root: "React",
+      commonjs2: "react",
+      commonjs: "react",
+      amd: "react",
+    },
+    "react-dom": {
+      root: "ReactDOM",
+      commonjs2: "react-dom",
+      commonjs: "react-dom",
+      amd: "react-dom",
+    },
   },
 };
-module.exports = merge(commonConfig, config);