Add freemium access economy and token store

2026-07-27 22:20:21 -05:00
parent 1d5d03a4f6
commit 4bbac27b84
40 changed files with 1807 additions and 37 deletions
@@ -0,0 +1,63 @@
+using QuestionsApi.Models;
+using Stripe;
+using Stripe.Checkout;
+
+namespace QuestionsApi.Services;
+
+public interface IStripeAccessGateway
+{
+    Task<StripeCheckoutResult> CreateCheckoutAsync(AccessPurchase purchase, AccessProduct product, CancellationToken cancellationToken);
+}
+
+public sealed class StripeAccessGateway(IConfiguration configuration) : IStripeAccessGateway
+{
+    public async Task<StripeCheckoutResult> CreateCheckoutAsync(
+        AccessPurchase purchase, AccessProduct product, CancellationToken cancellationToken)
+    {
+        var secretKey = configuration["Stripe:SecretKey"];
+        if (string.IsNullOrWhiteSpace(secretKey)) throw new InvalidOperationException("Stripe secret key is not configured.");
+        var successUrl = configuration["Stripe:AccessSuccessUrl"]
+            ?? "https://doctor.ranaze.com/donation-complete.html?session_id={CHECKOUT_SESSION_ID}";
+        var cancelUrl = configuration["Stripe:AccessCancelUrl"]
+            ?? "https://doctor.ranaze.com/donation-canceled.html";
+        var metadata = new Dictionary<string, string>
+        {
+            ["access_purchase_id"] = purchase.Id ?? "",
+            ["access_sku"] = product.Sku,
+            ["user_id"] = purchase.UserId
+        };
+        var service = new SessionService(new StripeClient(secretKey));
+        var session = await service.CreateAsync(new SessionCreateOptions
+        {
+            Mode = "payment",
+            SuccessUrl = successUrl,
+            CancelUrl = cancelUrl,
+            ClientReferenceId = purchase.Id,
+            CustomerCreation = "always",
+            BillingAddressCollection = "auto",
+            AutomaticTax = new SessionAutomaticTaxOptions { Enabled = true },
+            Metadata = metadata,
+            PaymentIntentData = new SessionPaymentIntentDataOptions { Metadata = metadata },
+            LineItems =
+            [
+                new SessionLineItemOptions
+                {
+                    Quantity = 1,
+                    PriceData = new SessionLineItemPriceDataOptions
+                    {
+                        Currency = product.Currency,
+                        UnitAmount = product.AmountCents,
+                        ProductData = new SessionLineItemPriceDataProductDataOptions
+                        {
+                            Name = product.Name,
+                            Description = "A manually activated RanaZe access entitlement."
+                        }
+                    }
+                }
+            ]
+        }, null, cancellationToken);
+        if (string.IsNullOrWhiteSpace(session.Id) || string.IsNullOrWhiteSpace(session.Url))
+            throw new InvalidOperationException("Stripe did not return a checkout URL.");
+        return new StripeCheckoutResult(session.Id, session.Url);
+    }
+}