fix: remove lodash from mc-populated-blank controller

Replace lodash-based empty checks with native object guards and align package exports to load the controller from the dedicated ./controller entrypoint so ESM output remains lean.

Made-with: Cursor

Author: chillenious

packages/elements-svelte/mc-populated-blank/package.json

@@ -1,10 +1,13 @@
 {
   "name": "@pie-element/mc-populated-blank",
-  "version": "0.2.4",
+  "version": "0.2.7",
   "description": "Multiple-choice option populates an inline blank in a sentence template (Svelte 5 PIE element)",
   "type": "module",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
+  "pie": {
+    "controller": "@pie-element/mc-populated-blank/controller"
+  },
   "exports": {
     ".": {
       "development": "./src/index.ts",
@@ -43,15 +46,13 @@
     "clean": "rm -rf dist tsconfig.tsbuildinfo"
   },
   "dependencies": {
-    "@pie-lib/styling-svelte": "workspace:*",
-    "lodash-es": "^4.17.21"
+    "@pie-lib/styling-svelte": "workspace:*"
   },
   "peerDependencies": {
     "svelte": "^5.0.0"
   },
   "devDependencies": {
     "@sveltejs/vite-plugin-svelte": "^7.0.0",
-    "@types/lodash-es": "^4.17.12",
     "svelte": "^5.54.0",
     "typescript": "^5.9.3",
     "vite": "^8.0.1"

packages/elements-svelte/mc-populated-blank/src/controller/index.ts

@@ -1,6 +1,11 @@
-import { isEmpty } from 'lodash-es';
 import defaults, { BLANK_TOKEN, DEFAULT_LAYOUT_LIMITS } from './defaults';
 
+const isEmptyObject = (value: unknown): boolean =>
+  !!value &&
+  typeof value === 'object' &&
+  !Array.isArray(value) &&
+  Object.keys(value as Record<string, unknown>).length === 0;
+
 export function countBlankTokens(template: string): number {
   if (!template) return 0;
   const re = /\{\{blank\}\}/g;
@@ -19,7 +24,7 @@ export const getCorrectness = (question: any, session: any) => {
 };
 
 export const getPartialScore = (_question: any, session: any) => {
-  if (!session || isEmpty(session) || !session.choiceId) {
+  if (!session || isEmptyObject(session) || !session.choiceId) {
     return 0;
   }
   return 1;
@@ -41,7 +46,7 @@ export const isComplete = (question: any, session: any, audioComplete = false) =
 
 export const outcome = (question: any, session: any, env: any) =>
   new Promise((resolve) => {
-    if (!session || isEmpty(session)) {
+    if (!session || isEmptyObject(session)) {
       resolve({
         score: 0,
         empty: true,

packages/elements-svelte/mc-populated-blank/src/index.ts

@@ -1,2 +1 @@
 export { default } from './delivery/index';
-export * as controller from './controller/index';

packages/elements-svelte/mc-populated-blank/vite.controller.config.ts

@@ -15,7 +15,6 @@ export default defineConfig({
     minify: false,
     sourcemap: true,
     rollupOptions: {
-      external: ['lodash-es'],
       output: {
         format: 'es',
       },