feat(MED-131): conditional env

lib/services/medusaCart.service.ts

@@ -8,10 +8,7 @@ import { StoreCartLineItem, StoreProductVariant } from '@medusajs/types';
 import { MontonioOrderHandlerService } from '@/packages/billing/montonio/src';
 import { requireUserInServerComponent } from '../server/require-user-in-server-component';
 
-const medusaBackendPublicUrl = process.env.MEDUSA_BACKEND_PUBLIC_URL!;
-const siteUrl = process.env.NEXT_PUBLIC_SITE_URL!;
-
-const env = z
+const env = () => z
   .object({
     medusaBackendPublicUrl: z
       .string({
@@ -25,8 +22,8 @@ const env = z
       .min(1),
   })
   .parse({
-    medusaBackendPublicUrl,
-    siteUrl,
+    medusaBackendPublicUrl: process.env.MEDUSA_BACKEND_PUBLIC_URL!,
+    siteUrl: process.env.NEXT_PUBLIC_SITE_URL!,
   });
 
 export async function handleAddToCart({
@@ -81,8 +78,8 @@ export async function handleNavigateToPayment({ language, paymentSessionId }: {
   }
 
   const paymentLink = await new MontonioOrderHandlerService().getMontonioPaymentLink({
-    notificationUrl: `${env.medusaBackendPublicUrl}/hooks/payment/montonio_montonio`,
-    returnUrl: `${env.siteUrl}/home/cart/montonio-callback`,
+    notificationUrl: `${env().medusaBackendPublicUrl}/hooks/payment/montonio_montonio`,
+    returnUrl: `${env().siteUrl}/home/cart/montonio-callback`,
     amount: cart.total,
     currency: cart.currency_code.toUpperCase(),
     description: `Order from Medreport`,