fix order scrolling

app/dashboard/orders/[id]/page.tsx

@@ -62,6 +62,17 @@ interface Order {
   trackingNumber?: string;
 }
 
+interface OrderInList extends Order {
+  _id: string;
+}
+
+interface OrdersResponse {
+  orders: OrderInList[];
+  page: number;
+  totalPages: number;
+  totalOrders: number;
+}
+
 const getStatusVariant = (status: string) => {
   switch (status) {
     case 'acknowledged':
@@ -292,43 +303,48 @@ export default function OrderDetailsPage() {
         
         if (!order?.orderId) return;
 
-        // Fetch previous and next orders in parallel
-        const [prevOrdersRes, nextOrdersRes] = await Promise.all([
-          // Get one order before the current one (newer orders)
-          fetchData(
-            `${process.env.NEXT_PUBLIC_API_URL}/orders?limit=1&after=${order.orderId}`,
+        // Get the current numerical orderId
+        const currentOrderId = parseInt(order.orderId);
+        console.log('Current orderId (numerical):', currentOrderId);
+
+        // Use the new optimized backend endpoint to get adjacent orders
+        const adjacentOrdersUrl = `${process.env.NEXT_PUBLIC_API_URL}/orders/adjacent/${currentOrderId}`;
+        console.log('Fetching adjacent orders:', adjacentOrdersUrl);
+        
+        const adjacentOrdersRes = await fetchData(
+          adjacentOrdersUrl,
           {
             method: "GET",
             headers: { Authorization: `Bearer ${authToken}` },
           }
-          ),
-          // Get one order after the current one (older orders)
-          fetchData(
-            `${process.env.NEXT_PUBLIC_API_URL}/orders?limit=1&before=${order.orderId}`,
-            {
-              method: "GET",
-              headers: { Authorization: `Bearer ${authToken}` },
-            }
-          )
-        ]);
+        );
 
-        // Set previous (newer) order ID if exists
-        if (prevOrdersRes?.orders?.length > 0) {
-          setPrevOrderId(prevOrdersRes.orders[0]._id);
+        console.log('Adjacent orders response:', adjacentOrdersRes);
+
+        if (!adjacentOrdersRes) {
+          console.error("Invalid response from adjacent orders endpoint");
+          return;
+        }
+
+        // Set the next and previous order IDs
+        const { newer, older } = adjacentOrdersRes;
+        
+        // Set IDs for navigation
+        setPrevOrderId(newer?._id || null);
+        setNextOrderId(older?._id || null);
+        
+        if (newer) {
+          console.log(`Newer order: ${newer.orderId} (ID: ${newer._id})`);
         } else {
-          setPrevOrderId(null);
+          console.log('No newer order found');
         }
         
-        // Set next (older) order ID if exists
-        if (nextOrdersRes?.orders?.length > 0) {
-          setNextOrderId(nextOrdersRes.orders[0]._id);
+        if (older) {
+          console.log(`Older order: ${older.orderId} (ID: ${older._id})`);
         } else {
-          setNextOrderId(null);
+          console.log('No older order found');
         }
 
-        console.log('Current order:', order.orderId);
-        console.log('Newer order:', prevOrdersRes?.orders?.[0]?._id);
-        console.log('Older order:', nextOrdersRes?.orders?.[0]?._id);
       } catch (error) {
         console.error("Failed to fetch adjacent orders:", error);
       }