From 48a5253023ecaab0d561d1a5ea45a7d6fb90efc1 Mon Sep 17 00:00:00 2001
From: Victoria Park <vicpark@paypal.com>
Date: Fri, 20 Dec 2024 07:20:52 -0800
Subject: [PATCH] guard against crash on blank fields

---
 Sources/CardPaySheet/CardFormViewController.swift | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Sources/CardPaySheet/CardFormViewController.swift b/Sources/CardPaySheet/CardFormViewController.swift
index 381639c6..c6aaa330 100644
--- a/Sources/CardPaySheet/CardFormViewController.swift
+++ b/Sources/CardPaySheet/CardFormViewController.swift
@@ -120,6 +120,16 @@ class CardFormViewController: UIViewController {
     }
 
     @objc private func handleContinueButton() {
+        guard let cardNumber = cardForm.cardNumber, let expirationDate = cardForm.expiryDate, let cvv = cardForm.expiryDate else {
+            // handle error
+            return
+        }
+
+        if cardNumber.isEmpty || expirationDate.isEmpty || cvv.isEmpty {
+            // handle error
+            return
+        }
+
         let card = Card.createCard(
             cardNumber: cardForm.cardNumber ?? "",
             expirationDate: cardForm.expiryDate ?? "",