[SG-72] Sync changed email address with stripe (#2042)

* sync changed email address with strip

* sync changed email address with strip

* fixed formatting

* throw exception if not successful

* Added revert if stripe sync fails

* Added revert if stripe sync fails

* Added revert if stripe sync fails

* created stripe sync service

* fixed lint issue

* reverted to use stripe exception message

* added null checks to customer id and email address

* added braces

* removed empty email

src/Core/Services/Implementations/StripeSyncService.cs

@@ -0,0 +1,33 @@
+using System.Threading.Tasks;
+using Bit.Core.Exceptions;
+
+namespace Bit.Core.Services
+{
+    public class StripeSyncService : IStripeSyncService
+    {
+        private readonly IStripeAdapter _stripeAdapter;
+
+        public StripeSyncService(IStripeAdapter stripeAdapter)
+        {
+            _stripeAdapter = stripeAdapter;
+        }
+
+        public async Task UpdateCustomerEmailAddress(string gatewayCustomerId, string emailAddress)
+        {
+            if (string.IsNullOrWhiteSpace(gatewayCustomerId))
+            {
+                throw new InvalidGatewayCustomerIdException();
+            }
+
+            if (string.IsNullOrWhiteSpace(emailAddress))
+            {
+                throw new InvalidEmailException();
+            }
+
+            var customer = await _stripeAdapter.CustomerGetAsync(gatewayCustomerId);
+
+            await _stripeAdapter.CustomerUpdateAsync(customer.Id,
+                new Stripe.CustomerUpdateOptions { Email = emailAddress });
+        }
+    }
+}