paymentservice with stripe & braintree implem.

src/Core/Services/Implementations/StripePaymentService.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Threading.Tasks;
+using Bit.Core.Models.Table;
+using Stripe;
+using System.Collections.Generic;
+
+namespace Bit.Core.Services
+{
+    public class StripePaymentService : IPaymentService
+    {
+        private const string PremiumPlanId = "premium-annually";
+        private const string StoragePlanId = "storage-gb-annually";
+
+        public StripePaymentService(
+            GlobalSettings globalSettings)
+        {
+
+        }
+
+        public async Task PurchasePremiumAsync(User user, string paymentToken, short additionalStorageGb)
+        {
+            var customerService = new StripeCustomerService();
+            var customer = await customerService.CreateAsync(new StripeCustomerCreateOptions
+            {
+                Description = user.Name,
+                Email = user.Email,
+                SourceToken = paymentToken
+            });
+
+            var subCreateOptions = new StripeSubscriptionCreateOptions
+            {
+                Items = new List<StripeSubscriptionItemOption>(),
+                Metadata = new Dictionary<string, string>
+                {
+                    ["userId"] = user.Id.ToString()
+                }
+            };
+
+            subCreateOptions.Items.Add(new StripeSubscriptionItemOption
+            {
+                PlanId = PremiumPlanId,
+                Quantity = 1
+            });
+
+            if(additionalStorageGb > 0)
+            {
+                subCreateOptions.Items.Add(new StripeSubscriptionItemOption
+                {
+                    PlanId = StoragePlanId,
+                    Quantity = additionalStorageGb
+                });
+            }
+
+            StripeSubscription subscription = null;
+            try
+            {
+                var subscriptionService = new StripeSubscriptionService();
+                subscription = await subscriptionService.CreateAsync(customer.Id, subCreateOptions);
+            }
+            catch(StripeException)
+            {
+                await customerService.DeleteAsync(customer.Id);
+                throw;
+            }
+
+            user.StripeCustomerId = customer.Id;
+            user.StripeSubscriptionId = subscription.Id;
+        }
+    }
+}