Process Payment: Fix gift code payment processing (#5682)

src/assets/localization/fallback.strings

@@ -1813,3 +1813,4 @@
 "PeerPersonalAccount" = "personal account";
 "PeerChannel" = "channel";
 "WebAppCollapse" = "Collapse";
+"GiftSent"= "Gift sent!";

src/global/actions/apiUpdaters/payments.ts

@@ -15,16 +15,29 @@ addActionHandler('apiUpdate', (global, actions, update): ActionReturnType => {
       const { invoice } = form;
 
       const { totalAmount, currency } = invoice;
-
-      if (paymentState.inputInvoice?.type === 'stars') {
+      const inputInvoice = paymentState.inputInvoice;
+      if (inputInvoice?.type === 'stars') {
         actions.closeStarsBalanceModal({ tabId });
         actions.showNotification({
-          message: langProvider.oldTranslate('StarsAcquiredInfo', paymentState.inputInvoice.stars),
+          message: langProvider.oldTranslate('StarsAcquiredInfo', inputInvoice.stars),
           title: langProvider.oldTranslate('StarsAcquired'),
           icon: 'star',
           tabId,
         });
         actions.requestConfetti({ withStars: true, tabId });
+      } else if (inputInvoice?.type === 'giftcode') {
+        const giftModalState = selectTabState(global, tabId).giftModal;
+
+        if (giftModalState && inputInvoice?.userIds[0] === giftModalState.forPeerId) {
+          actions.showNotification({
+            message: {
+              key: 'GiftSent',
+            },
+            tabId,
+          });
+          actions.requestConfetti({ withStars: true, tabId });
+          actions.closeGiftModal({ tabId });
+        }
       } else {
         actions.showNotification({
           tabId,

src/types/language.d.ts

@@ -1403,6 +1403,7 @@ export interface LangPair {
   'PeerPersonalAccount': undefined;
   'PeerChannel': undefined;
   'WebAppCollapse': undefined;
+  'GiftSent': undefined;
 }
 
 export interface LangPairWithVariables<V extends unknown = LangVariable> {