Move phone number format/parse into ts/types/PhoneNumber

ts/types/Contact.ts

@@ -1,6 +1,6 @@
 // @ts-ignore
 import Attachments from '../../app/attachments';
-import { formatPhoneNumber } from '../util/formatPhoneNumber';
+import { format as formatPhoneNumber } from '../types/PhoneNumber';
 
 export interface Contact {
   name: Name;

ts/types/PhoneNumber.ts

@@ -0,0 +1,38 @@
+import { instance, PhoneNumberFormat } from '../util/libphonenumberInstance';
+
+export function format(
+  phoneNumber: string,
+  options: {
+    ourRegionCode: string;
+  }
+) {
+  try {
+    const { ourRegionCode } = options;
+    const parsedNumber = instance.parse(phoneNumber);
+    const regionCode = instance.getRegionCodeForNumber(parsedNumber);
+
+    if (ourRegionCode && regionCode === ourRegionCode) {
+      return instance.format(parsedNumber, PhoneNumberFormat.NATIONAL);
+    }
+
+    return instance.format(parsedNumber, PhoneNumberFormat.INTERNATIONAL);
+  } catch (error) {
+    return phoneNumber;
+  }
+}
+
+export function parse(
+  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;
+}