comments added

packages/sdk/rollup.config.cjs.js

@@ -1,22 +1,22 @@
 import { nodeResolve } from "@rollup/plugin-node-resolve";
-// import multi from "@rollup/plugin-multi-entry";
 import commonjs from "@rollup/plugin-commonjs";
 import multiInput from "rollup-plugin-multi-input";
 
-const esmCjsCompatible = ["file-type", "uint8arrays", "multiformats"];
+// List of ESM dependencies that are not compatible with CJS
+const esmInCompatible = ["file-type", "uint8arrays", "multiformats"];
 
+/*
+  * Rollup configuration to build CJS compatible dependencies
+*/
 export default {
-  input: esmCjsCompatible.map((m) => `../../node_modules/${m}/**/*.js`),
+  input: esmInCompatible.map((m) => `../../node_modules/${m}/**/*.js`),
   plugins: [
     commonjs(),
-    // multi({preserveModules: true}),
     multiInput.default({ relative: "../../node_modules" }),
     nodeResolve(),
   ],
   output: {
     dir: "build/cjs/deps",
     format: "cjs",
-    // preserveModules: true,
-    // entryFileNames: "[name].js",
   },
 };

packages/sdk/src/esm-cjs-maps.ts

@@ -1,3 +1,8 @@
+
+/*
+`esmCjsMaps` is a map of ESM package names to their CJS equivalents. 
+This is used to resolve ESM imports to CJS imports for CommonJS build.
+*/
 export const esmCjsMaps = {
   "file-type": "file-type",
   uint8arrays: "uint8arrays/dist/src",

packages/sdk/src/polyfills.ts

@@ -3,6 +3,11 @@ import fs from "fs";
 import { esmCjsMaps } from "./esm-cjs-maps.js";
 
 
+/* 
+This is a polyfill for the "require" Commonjs function
+This is needed because there are some dependencies that are not ESM compatible
+and we need to use the Commonjs version of the package
+*/
 if (fs.existsSync("package.json")) {
   const packageJson = fs.readFileSync("package.json", "utf-8");
   const packageJsonObj = JSON.parse(packageJson);
@@ -12,12 +17,9 @@ if (fs.existsSync("package.json")) {
       var self = this;
 
       if (
-        // fs.existsSync(pathModule.resolve(__dirname, "deps", modules[path])) &&
         typeof esmCjsMaps[path] === "string"
       ) {
         const dep = pathModule.resolve(__dirname, "deps", esmCjsMaps[path]);
-        // console.log("Loading from deps:", path);
-        // console.log("dep path:", dep);
         return self.constructor._load(dep, self);
       }
       return self.constructor._load(path, self);