Parse phone numbers into e164 as part of schema upgrade

ts/styleguide/StyleGuideUtil.ts

@@ -137,6 +137,7 @@ const Attachments = {
 parent.Signal = Signal.setup({
   Attachments,
   userDataPath: '/',
+  getRegionCode: () => parent.storage.get('regionCode'),
 });
 parent.SignalService = SignalService;
 

ts/util/parsePhoneNumber.ts

@@ -0,0 +1,17 @@
+import { instance, PhoneNumberFormat } from './libphonenumberInstance';
+
+export function parsePhoneNumber(
+  phoneNumber: string,
+  options: {
+    regionCode: string;
+  }
+): string {
+  const { regionCode } = options;
+  const parsedNumber = instance.parse(phoneNumber, regionCode);
+
+  if (instance.isValidNumber(parsedNumber)) {
+    return instance.format(parsedNumber, PhoneNumberFormat.E164);
+  }
+
+  return phoneNumber;
+}