fix(customers): Add tabs to detail page and fix orders loading

Fixed 2 critical issues:

1. ✅ Orders Not Loading:
Backend (OrdersController.php):
- Added customer_id parameter support
- Lines 300-304: Filter orders by customer
- Uses WooCommerce customer_id arg

Frontend (Detail.tsx):
- Already passing customer_id correctly
- Orders will now load properly

2. ✅ Added Tabs for Better Organization:
Implemented 3-tab layout:

**Overview Tab:**
- Stats cards: Total Orders, Total Spent, Registered
- Contact information (email, phone)
- Clean, focused view

**Orders Tab:**
- Full order history (not just 10)
- Order count display
- Better empty state
- All orders clickable to detail

**Address Tab:**
- Billing address (full details)
- Shipping address (full details)
- Company names if available
- Phone in billing section
- Empty states for missing addresses

Benefits:
✅ Clean, organized, contextual data per tab
✅ No information overload
✅ Easy navigation between sections
✅ Better mobile experience
✅ Consistent with modern admin UX

Technical:
- Uses shadcn/ui Tabs component
- Responsive grid layouts
- Proper empty states
- Type-safe with TypeScript

Result: Customer detail page is now properly organized with working order history!

admin-spa/src/routes/Customers/Detail.tsx

@@ -10,6 +10,7 @@ import { ErrorCard } from '@/components/ErrorCard';
 import { Skeleton } from '@/components/ui/skeleton';
 import { Card } from '@/components/ui/card';
 import { Button } from '@/components/ui/button';
+import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
 import { ArrowLeft, Edit, Mail, Calendar, ShoppingBag, DollarSign, User, MapPin } from 'lucide-react';
 import { formatMoney } from '@/lib/currency';
 
@@ -17,6 +18,7 @@ export default function CustomerDetail() {
   const { id } = useParams<{ id: string }>();
   const navigate = useNavigate();
   const customerId = parseInt(id || '0', 10);
+  const [activeTab, setActiveTab] = React.useState('overview');
 
   // Fetch customer data
   const customerQuery = useQuery({
@@ -89,9 +91,9 @@ export default function CustomerDetail() {
 
   return (
     <div className="space-y-6 pb-6">
-      {/* Customer Info Card */}
+      {/* Customer Info Header */}
       <Card className="p-6">
-        <div className="flex items-start justify-between mb-6">
+        <div className="flex items-start justify-between">
           <div className="flex items-center gap-4">
             <div className="w-16 h-16 rounded-full bg-primary/10 flex items-center justify-center">
               <User className="w-8 h-8 text-primary" />
@@ -109,45 +111,53 @@ export default function CustomerDetail() {
             {customer.role === 'customer' ? __('Member') : __('Guest')}
           </span>
         </div>
+      </Card>
 
+      {/* Tabs */}
+      <Tabs value={activeTab} onValueChange={setActiveTab} className="w-full">
+        <TabsList className="grid w-full grid-cols-3">
+          <TabsTrigger value="overview">{__('Overview')}</TabsTrigger>
+          <TabsTrigger value="orders">{__('Orders')}</TabsTrigger>
+          <TabsTrigger value="address">{__('Address')}</TabsTrigger>
+        </TabsList>
+
+        {/* Overview Tab */}
+        <TabsContent value="overview" className="space-y-6">
           {/* Stats Grid */}
           <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
-          <div className="p-4 rounded-lg bg-muted/50">
-            <div className="flex items-center gap-2 text-muted-foreground mb-1">
-              <ShoppingBag className="w-4 h-4" />
-              <span className="text-sm">{__('Total Orders')}</span>
-            </div>
-            <div className="text-2xl font-bold">{customer.stats?.total_orders || 0}</div>
+            <Card className="p-6">
+              <div className="flex items-center gap-2 text-muted-foreground mb-2">
+                <ShoppingBag className="w-5 h-5" />
+                <span className="text-sm font-medium">{__('Total Orders')}</span>
               </div>
+              <div className="text-3xl font-bold">{customer.stats?.total_orders || 0}</div>
+            </Card>
 
-          <div className="p-4 rounded-lg bg-muted/50">
-            <div className="flex items-center gap-2 text-muted-foreground mb-1">
-              <DollarSign className="w-4 h-4" />
-              <span className="text-sm">{__('Total Spent')}</span>
+            <Card className="p-6">
+              <div className="flex items-center gap-2 text-muted-foreground mb-2">
+                <DollarSign className="w-5 h-5" />
+                <span className="text-sm font-medium">{__('Total Spent')}</span>
               </div>
-            <div className="text-2xl font-bold">
+              <div className="text-3xl font-bold">
                 {customer.stats?.total_spent ? formatMoney(customer.stats.total_spent) : formatMoney(0)}
               </div>
-          </div>
-
-          <div className="p-4 rounded-lg bg-muted/50">
-            <div className="flex items-center gap-2 text-muted-foreground mb-1">
-              <Calendar className="w-4 h-4" />
-              <span className="text-sm">{__('Registered')}</span>
-            </div>
-            <div className="text-lg font-medium">
-              {new Date(customer.registered).toLocaleDateString('id-ID', {
-                year: 'numeric',
-                month: 'long',
-                day: 'numeric'
-              })}
-            </div>
-          </div>
-        </div>
             </Card>
 
-      {/* Contact & Address Info */}
-      <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+            <Card className="p-6">
+              <div className="flex items-center gap-2 text-muted-foreground mb-2">
+                <Calendar className="w-5 h-5" />
+                <span className="text-sm font-medium">{__('Registered')}</span>
+              </div>
+              <div className="text-xl font-bold">
+                {new Date(customer.registered).toLocaleDateString('id-ID', {
+                  year: 'numeric',
+                  month: 'short',
+                  day: 'numeric'
+                })}
+              </div>
+            </Card>
+          </div>
+
           {/* Contact Info */}
           <Card className="p-6">
             <h3 className="text-lg font-semibold mb-4 flex items-center gap-2">
@@ -167,52 +177,33 @@ export default function CustomerDetail() {
               )}
             </div>
           </Card>
+        </TabsContent>
 
-        {/* Billing Address */}
-        {customer.billing && (customer.billing.address_1 || customer.billing.city) && (
-          <Card className="p-6">
-            <h3 className="text-lg font-semibold mb-4 flex items-center gap-2">
-              <MapPin className="w-5 h-5" />
-              {__('Billing Address')}
-            </h3>
-            <div className="text-sm space-y-1">
-              {customer.billing.address_1 && <div>{customer.billing.address_1}</div>}
-              {customer.billing.address_2 && <div>{customer.billing.address_2}</div>}
-              <div>
-                {[customer.billing.city, customer.billing.state, customer.billing.postcode]
-                  .filter(Boolean)
-                  .join(', ')}
-              </div>
-              {customer.billing.country && <div>{customer.billing.country}</div>}
-            </div>
-          </Card>
-        )}
-      </div>
-
-      {/* Recent Orders */}
+        {/* Orders Tab */}
+        <TabsContent value="orders" className="space-y-4">
           <Card className="p-6">
             <div className="flex items-center justify-between mb-4">
-          <h3 className="text-lg font-semibold">{__('Recent Orders')}</h3>
-          {orders.length > 0 && (
-            <Link to={`/orders?customer_id=${customerId}`} className="text-sm text-primary hover:underline">
-              {__('View all orders')}
-            </Link>
-          )}
+              <h3 className="text-lg font-semibold">{__('Order History')}</h3>
+              <div className="text-sm text-muted-foreground">
+                {orders.length} {__('orders')}
+              </div>
             </div>
 
             {ordersQuery.isLoading ? (
               <div className="space-y-2">
                 <Skeleton className="h-16 w-full" />
                 <Skeleton className="h-16 w-full" />
+                <Skeleton className="h-16 w-full" />
               </div>
             ) : orders.length === 0 ? (
-          <div className="text-center py-8 text-muted-foreground">
-            <ShoppingBag className="w-12 h-12 mx-auto mb-2 opacity-50" />
-            <p>{__('No orders yet')}</p>
+              <div className="text-center py-12 text-muted-foreground">
+                <ShoppingBag className="w-16 h-16 mx-auto mb-3 opacity-50" />
+                <p className="text-lg font-medium">{__('No orders yet')}</p>
+                <p className="text-sm mt-1">{__('This customer hasn\'t placed any orders')}</p>
               </div>
             ) : (
               <div className="space-y-2">
-            {orders.slice(0, 10).map((order: any) => (
+                {orders.map((order: any) => (
                   <Link
                     key={order.id}
                     to={`/orders/${order.id}`}
@@ -247,6 +238,79 @@ export default function CustomerDetail() {
               </div>
             )}
           </Card>
+        </TabsContent>
+
+        {/* Address Tab */}
+        <TabsContent value="address" className="space-y-6">
+          <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+            {/* Billing Address */}
+            <Card className="p-6">
+              <h3 className="text-lg font-semibold mb-4 flex items-center gap-2">
+                <MapPin className="w-5 h-5" />
+                {__('Billing Address')}
+              </h3>
+              {customer.billing && (customer.billing.address_1 || customer.billing.city) ? (
+                <div className="space-y-1">
+                  {customer.billing.first_name && customer.billing.last_name && (
+                    <div className="font-medium">
+                      {customer.billing.first_name} {customer.billing.last_name}
+                    </div>
+                  )}
+                  {customer.billing.company && (
+                    <div className="text-sm text-muted-foreground">{customer.billing.company}</div>
+                  )}
+                  {customer.billing.address_1 && <div>{customer.billing.address_1}</div>}
+                  {customer.billing.address_2 && <div>{customer.billing.address_2}</div>}
+                  <div>
+                    {[customer.billing.city, customer.billing.state, customer.billing.postcode]
+                      .filter(Boolean)
+                      .join(', ')}
+                  </div>
+                  {customer.billing.country && <div>{customer.billing.country}</div>}
+                  {customer.billing.phone && (
+                    <div className="mt-3 pt-3 border-t">
+                      <div className="text-sm text-muted-foreground">{__('Phone')}</div>
+                      <div>{customer.billing.phone}</div>
+                    </div>
+                  )}
+                </div>
+              ) : (
+                <div className="text-sm text-muted-foreground">{__('No billing address')}</div>
+              )}
+            </Card>
+
+            {/* Shipping Address */}
+            <Card className="p-6">
+              <h3 className="text-lg font-semibold mb-4 flex items-center gap-2">
+                <MapPin className="w-5 h-5" />
+                {__('Shipping Address')}
+              </h3>
+              {customer.shipping && (customer.shipping.address_1 || customer.shipping.city) ? (
+                <div className="space-y-1">
+                  {customer.shipping.first_name && customer.shipping.last_name && (
+                    <div className="font-medium">
+                      {customer.shipping.first_name} {customer.shipping.last_name}
+                    </div>
+                  )}
+                  {customer.shipping.company && (
+                    <div className="text-sm text-muted-foreground">{customer.shipping.company}</div>
+                  )}
+                  {customer.shipping.address_1 && <div>{customer.shipping.address_1}</div>}
+                  {customer.shipping.address_2 && <div>{customer.shipping.address_2}</div>}
+                  <div>
+                    {[customer.shipping.city, customer.shipping.state, customer.shipping.postcode]
+                      .filter(Boolean)
+                      .join(', ')}
+                  </div>
+                  {customer.shipping.country && <div>{customer.shipping.country}</div>}
+                </div>
+              ) : (
+                <div className="text-sm text-muted-foreground">{__('No shipping address')}</div>
+              )}
+            </Card>
+          </div>
+        </TabsContent>
+      </Tabs>
     </div>
   );
 }

includes/Api/OrdersController.php

@@ -297,6 +297,12 @@ class OrdersController {
       $args['include'] = [ absint( $m[1] ) ];
     }
     
+    // Optional customer filter
+    $customer_id = $req->get_param( 'customer_id' );
+    if ( $customer_id ) {
+      $args['customer_id'] = absint( $customer_id );
+    }
+  
     $result = wc_get_orders( $args );
 
     // If we had a two-sided date range, filter results manually to avoid OrdersTableQuery fatal.