add checkMatchesObjectStructure utility function

src/Model/Utility/typeSafety.ts

@@ -1,9 +1,30 @@
-export const DATA_VERSION = "v2"
+export const DATA_VERSION = "v2";
 
 export function checkIsValidObject(object: any): boolean {
   return object.dataVersion == DATA_VERSION;
 }
 
+export function checkMatchesObjectStructure(
+  objectToCheck: any,
+  reference: any
+): boolean {
+  for (const key of Object.keys(reference)) {
+    const requiredType = typeof reference[key];
+    const actualType = typeof objectToCheck[key];
+    if (requiredType != actualType) return false;
+
+    // recurse into objects
+    if (requiredType != "object") continue;
+    const doesNestedObjectMatch = checkMatchesObjectStructure(
+      reference[key],
+      objectToCheck[key]
+    );
+    if (doesNestedObjectMatch == false) return false;
+  }
+
+  return true;
+}
+
 export interface ValidObject {
   dataVersion: "v2";
-}
+}