feat(MED-97): update cart flow for using benefits

app/home/(user)/(dashboard)/cart/page.tsx

@@ -1,5 +1,3 @@
-import { notFound } from 'next/navigation';
-
 import { createI18nServerInstance } from '@/lib/i18n/i18n.server';
 import { PageBody, PageHeader } from '@/packages/ui/src/makerkit/page';
 import { retrieveCart } from '@lib/data/cart';
@@ -11,6 +9,8 @@ import { withI18n } from '~/lib/i18n/with-i18n';
 
 import Cart from '../../_components/cart';
 import CartTimer from '../../_components/cart/cart-timer';
+import { loadCurrentUserAccount } from '../../_lib/server/load-user-account';
+import { AccountBalanceService } from '~/lib/services/accountBalance.service';
 
 export async function generateMetadata() {
   const { t } = await createI18nServerInstance();
@@ -21,12 +21,22 @@ export async function generateMetadata() {
 }
 
 async function CartPage() {
-  const cart = await retrieveCart().catch((error) => {
-    console.error('Failed to retrieve cart', error);
-    return notFound();
-  });
+  const [
+    cart,
+    { productTypes },
+    { account },
+  ] = await Promise.all([
+    retrieveCart(),
+    listProductTypes(),
+    loadCurrentUserAccount(),
+  ]);
+
+  if (!account) {
+    return null;
+  }
+
+  const balanceSummary = await new AccountBalanceService().getBalanceSummary(account.id);
 
-  const { productTypes } = await listProductTypes();
   const analysisPackagesType = productTypes.find(
     ({ metadata }) => metadata?.handle === 'analysis-packages',
   );
@@ -63,9 +73,11 @@ async function CartPage() {
         {isTimerShown && <CartTimer cartItem={item} />}
       </PageHeader>
       <Cart
+        accountId={account.id}
         cart={cart}
         synlabAnalyses={synlabAnalyses}
         ttoServiceItems={ttoServiceItems}
+        balanceSummary={balanceSummary}
       />
     </PageBody>
   );