Donations: Select default currency via user's phone number

Co-authored-by: Scott Nonnenberg <scott@signal.org>

ACKNOWLEDGMENTS.md

@@ -3367,6 +3367,30 @@ Signal Desktop makes use of the following open source projects.
 
     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
+## country-codes-list
+
+    MIT License
+
+    Copyright (c) 2019 Luciano
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+
 ## credit-card-type
 
     Copyright (c) 2009-2018 Braintree, a division of PayPal, Inc.

package.json

@@ -141,6 +141,7 @@
     "classnames": "2.5.1",
     "config": "3.3.12",
     "copy-text-to-clipboard": "2.1.0",
+    "country-codes-list": "2.0.0",
     "credit-card-type": "10.0.2",
     "dashdash": "2.0.0",
     "direction": "1.0.4",

pnpm-lock.yaml

@@ -188,6 +188,9 @@ importers:
       copy-text-to-clipboard:
         specifier: 2.1.0
         version: 2.1.0
+      country-codes-list:
+        specifier: 2.0.0
+        version: 2.0.0
       credit-card-type:
         specifier: 10.0.2
         version: 10.0.2
@@ -4545,6 +4548,9 @@ packages:
       typescript:
         optional: true
 
+  country-codes-list@2.0.0:
+    resolution: {integrity: sha512-KZqq/LBdCD76hQCa6nOx0bA/nIjYly1OtV8+Bbt/4SW+mJEqGk7oZHjUj7PRrV0gXJJKs6Tv2cIntFdofBByvA==}
+
   crc@3.8.0:
     resolution: {integrity: sha512-iX3mfgcTMIq3ZKLIsVFAbv7+Mc10kxabAGQb8HvjA1o3T1PIYprbakQ65d3I+2HGHt6nSKkM9PYjgoJO2KcFBQ==}
 
@@ -14627,6 +14633,8 @@ snapshots:
     optionalDependencies:
       typescript: 5.6.3
 
+  country-codes-list@2.0.0: {}
+
   crc@3.8.0:
     dependencies:
       buffer: 5.7.1

ts/components/Preferences.stories.tsx

@@ -218,6 +218,7 @@ function renderDonationsPane(props: {
       i18n={i18n}
       contentsRef={props.contentsRef}
       clearWorkflow={action('clearWorkflow')}
+      initialCurrency="USD"
       isStaging
       page={props.page}
       setPage={props.setPage}

ts/components/PreferencesDonateFlow.tsx

@@ -65,6 +65,7 @@ const SUPPORT_URL = 'https://support.signal.org/hc/requests/new?desktop';
 
 export type PropsDataType = {
   i18n: LocalizerType;
+  initialCurrency: string;
   donationAmountsConfig: OneTimeDonationHumanAmounts | undefined;
   lastError: DonationErrorType | undefined;
   validCurrencies: ReadonlyArray<string>;
@@ -87,6 +88,7 @@ export type PropsType = PropsDataType & PropsActionType & PropsHousekeepingType;
 export function PreferencesDonateFlow({
   contentsRef,
   i18n,
+  initialCurrency,
   donationAmountsConfig,
   lastError,
   validCurrencies,
@@ -106,7 +108,7 @@ export function PreferencesDonateFlow({
   const [step, setStep] = useState<'amount' | 'paymentDetails'>('amount');
 
   const [amount, setAmount] = useState<HumanDonationAmount>();
-  const [currency, setCurrency] = useState<string>();
+  const [currency, setCurrency] = useState<string>(initialCurrency);
   const [cardExpiration, setCardExpiration] = useState('');
   const [cardNumber, setCardNumber] = useState('');
   const [cardCvc, setCardCvc] = useState('');

ts/components/PreferencesDonations.tsx

@@ -47,6 +47,7 @@ type PropsExternalType = {
 
 export type PropsDataType = {
   i18n: LocalizerType;
+  initialCurrency: string;
   isStaging: boolean;
   page: SettingsPage;
   lastError: DonationErrorType | undefined;
@@ -452,6 +453,7 @@ function PreferencesReceiptList({
 export function PreferencesDonations({
   contentsRef,
   i18n,
+  initialCurrency,
   isStaging,
   page,
   workflow,
@@ -581,6 +583,7 @@ export function PreferencesDonations({
         <PreferencesDonateFlow
           contentsRef={contentsRef}
           i18n={i18n}
+          initialCurrency={initialCurrency}
           donationAmountsConfig={donationAmountsConfig}
           lastError={lastError}
           validCurrencies={validCurrencies}
@@ -612,6 +615,7 @@ export function PreferencesDonations({
         generateDonationReceiptBlob={generateDonationReceiptBlob}
         showToast={showToast}
         isStaging={isStaging}
+        initialCurrency={initialCurrency}
         page={page}
         lastError={lastError}
         workflow={workflow}

ts/services/donations.ts

@@ -12,6 +12,7 @@ import {
   ReceiptSerial,
   ServerPublicParams,
 } from '@signalapp/libsignal-client/zkgroup';
+import * as countryCodes from 'country-codes-list';
 
 import * as Bytes from '../Bytes';
 import * as Errors from '../types/errors';
@@ -42,6 +43,7 @@ import type {
 } from '../types/Donations';
 import { ToastType } from '../types/Toast';
 import { NavTab, SettingsPage } from '../types/Nav';
+import { getRegionCodeForNumber } from '../util/libphonenumberUtil';
 
 const { createDonationReceipt } = DataWriter;
 
@@ -955,3 +957,9 @@ function isCredentialValid(credential: ReceiptCredential): boolean {
 
   return true;
 }
+
+export function phoneNumberToCurrencyCode(e164: string): string {
+  const regionCode = getRegionCodeForNumber(e164) ?? 'US';
+  const countryData = countryCodes.findOne('countryCode', regionCode);
+  return countryData?.currencyCode ?? 'USD';
+}

ts/state/smart/PreferencesDonations.tsx

@@ -6,7 +6,7 @@ import { useSelector } from 'react-redux';
 
 import type { MutableRefObject } from 'react';
 
-import { getIntl, getTheme } from '../selectors/user';
+import { getIntl, getTheme, getUserNumber } from '../selectors/user';
 import { getMe } from '../selectors/conversations';
 import { PreferencesDonations } from '../../components/PreferencesDonations';
 import type { SettingsPage } from '../../types/Nav';
@@ -19,6 +19,7 @@ import { getDonationHumanAmounts } from '../../util/subscriptionConfiguration';
 import { drop } from '../../util/drop';
 import type { OneTimeDonationHumanAmounts } from '../../types/Donations';
 import { getPreferredBadgeSelector } from '../selectors/badges';
+import { phoneNumberToCurrencyCode } from '../../services/donations';
 
 export const SmartPreferencesDonations = memo(
   function SmartPreferencesDonations({
@@ -45,6 +46,7 @@ export const SmartPreferencesDonations = memo(
     const { clearWorkflow, submitDonation, updateLastError } =
       useDonationsActions();
 
+    const ourNumber = useSelector(getUserNumber);
     const { badges, color, firstName, profileAvatarUrl } = useSelector(getMe);
     const badge = getPreferredBadge(badges);
 
@@ -67,6 +69,13 @@ export const SmartPreferencesDonations = memo(
       drop(loadDonationAmounts());
     }, []);
 
+    const currencyFromPhone = ourNumber
+      ? phoneNumberToCurrencyCode(ourNumber).toLowerCase()
+      : 'usd';
+    const initialCurrency = validCurrencies.includes(currencyFromPhone)
+      ? currencyFromPhone
+      : 'usd';
+
     return (
       <PreferencesDonations
         i18n={i18n}
@@ -81,6 +90,7 @@ export const SmartPreferencesDonations = memo(
         validCurrencies={validCurrencies}
         showToast={showToast}
         contentsRef={contentsRef}
+        initialCurrency={initialCurrency}
         isStaging={isStaging}
         page={page}
         lastError={donationsState.lastError}

ts/test-node/services/donations_test.ts

@@ -0,0 +1,28 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+import { phoneNumberToCurrencyCode } from '../../services/donations';
+
+describe('donations', () => {
+  describe('phoneNumberToCurrency', () => {
+    it('handles US phone number', async () => {
+      assert.strictEqual(phoneNumberToCurrencyCode('+18055550000'), 'USD');
+    });
+    it('handles Canada phone number', async () => {
+      assert.strictEqual(phoneNumberToCurrencyCode('+17805550000'), 'CAD');
+    });
+    it('handles Puerto Rico phone number', async () => {
+      assert.strictEqual(phoneNumberToCurrencyCode('+17875550000'), 'USD');
+    });
+    it('handles Guam phone number', async () => {
+      assert.strictEqual(phoneNumberToCurrencyCode('+16715550000'), 'USD');
+    });
+    it('handles Aruba phone number', async () => {
+      assert.strictEqual(phoneNumberToCurrencyCode('+2972870550'), 'AWG');
+    });
+    it('handles New Zealand phone number', async () => {
+      assert.strictEqual(phoneNumberToCurrencyCode('+6492221111;'), 'NZD');
+    });
+  });
+});

ts/types/PhoneNumber.ts

@@ -40,7 +40,9 @@ export function getCountryCode(
       return undefined;
     }
 
-    return instance.parse(phoneNumber).getCountryCode();
+    const parsed = instance.parse(phoneNumber);
+
+    return parsed.getCountryCode();
   } catch (error) {
     const errorText = Errors.toLogFormat(error);
     log.info(