fix iso code fallback

examples/client/Locomotion/src/Components/PhoneNumberInput/index.tsx

@@ -1,5 +1,5 @@
 import React, { useContext, useEffect, useState } from 'react';
-import PhoneInput from 'react-native-phone-number-input';
+import PhoneInput, { PhoneInputProps } from 'react-native-phone-number-input';
 import Config from 'react-native-config';
 import { AsYouType } from 'libphonenumber-js';
 import { ThemeContext } from 'styled-components';
@@ -8,14 +8,17 @@ import i18n from '../../I18n';
 import codes from './codes.json';
 import { ERROR_COLOR } from '../../context/theme';
 
+type SupportIsoCode = PhoneInputProps['defaultCode'];
+const ALL_SUPPORTED_ISO_CODES_FROM_LIB: SupportIsoCode[] = [];
+
 const PhoneNumberInput = ({
  onPhoneNumberChange,
  autoFocus,
  error,
  value,
 }: any) => {
  const [isFocused, setIsFocused] = useState(false);
- const [defaultCode, setDefaultCode] = useState(null);
+ const [defaultCode, setDefaultCode] = useState<SupportIsoCode | null>(null);
  const theme = useContext(ThemeContext);
  const asYouTypePhoneNumber = new AsYouType();
 
@@ -28,11 +31,19 @@ const PhoneNumberInput = ({
  asYouTypePhoneNumber.isValid(),
  );
  };
+ const getSafeIsoCode = (rawCode: string) : SupportIsoCode => {
+ const code = Config.OVERWRITE_COUNTRY_CODE || rawCode;
+ if (ALL_SUPPORTED_ISO_CODES_FROM_LIB.includes(code as SupportIsoCode)) {
+ return (code as SupportIsoCode);
+ }
+ return (Config.DEFAULT_COUNTRY_CODE as SupportIsoCode);
+ };
 
  const setIsoCode = async () => {
- const mobileIso = await getInputIsoCode();
+ const rawMobileIso = await getInputIsoCode();
+ const safeCode = getSafeIsoCode(rawMobileIso);
  setTimeout(() => {
- setDefaultCode(Config.OVERWRITE_COUNTRY_CODE || mobileIso);
+ setDefaultCode(safeCode);
  }, 50);
  };