Handle PniChangeNumber

ts/util/mapObjectWithSpec.ts

@@ -0,0 +1,68 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+import { cloneDeep, get, set } from 'lodash';
+
+export type ObjectMappingSpecType =
+  | string
+  | ReadonlyArray<ObjectMappingSpecType>
+  | Readonly<{
+      key: string;
+      valueSpec: ObjectMappingSpecType;
+    }>
+  | Readonly<{
+      isMap: true;
+      valueSpec: ObjectMappingSpecType;
+    }>;
+
+export function mapObjectWithSpec<Input, Output>(
+  spec: ObjectMappingSpecType,
+  // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
+  data: any,
+  map: (value: Input) => Output,
+  target = cloneDeep(data)
+): any {
+  if (!data) {
+    return target;
+  }
+
+  if (typeof spec === 'string') {
+    const value = get(data, spec);
+
+    if (value) {
+      set(target, spec, map(value));
+    }
+    return target;
+  }
+
+  if ('isMap' in spec) {
+    for (const key of Object.keys(data)) {
+      // eslint-disable-next-line no-param-reassign
+      target[key] = mapObjectWithSpec(
+        spec.valueSpec,
+        data[key],
+        map,
+        target[key]
+      );
+    }
+    return target;
+  }
+
+  if ('key' in spec) {
+    // eslint-disable-next-line no-param-reassign
+    target[spec.key] = mapObjectWithSpec(
+      spec.valueSpec,
+      data[spec.key],
+      map,
+      target[spec.key]
+    );
+    return target;
+  }
+
+  for (const key of spec) {
+    mapObjectWithSpec(key, data, map, target);
+  }
+
+  return target;
+}