feat: standardize invoice number field, refine invoice creation logic, and update module foreign key constraints

app/Services/OrderService.php

@@ -42,14 +42,14 @@ class OrderService
         [$productItems, $relIdData, $total] = $this->buildProductItems($data);
 
         $invoiceData = [
-            'date'       => Carbon::today()->toDateString(),
+            'invoice_number' => Helper::generateUniqueCode(),
             'due_date'   => Carbon::today()->toDateString(),
-            'date_paid'  => (int) $data['status'] === 1 ? Carbon::today()->toDateString() : null,
+            'paid_at'  => (int) $data['status'] === 1 ? Carbon::today()->toDateString() : null,
             'sub_total'  => $total,
             'tax'        => $total * (10 / 100),
             'total'      => $total + ($total * (10 / 100)),
             'payment_method' => $paymentRecord?->id,
-            'customer_id' => ($data['create_invoice'] ?? false) ? $data['customer_id'] : 0,
+            'customer_id' => $data['customer_id'],
             'status'     => $data['status'],
         ];
 
@@ -84,10 +84,15 @@ class OrderService
 
             $this->createModules($relIdData);
 
-            $invoiceItemData = array_map(
-                fn ($item) => \Illuminate\Support\Arr::except($item, ['billing_cycle', 'code']),
-                $productItems
-            );
+            $invoiceItemData = array_map(fn ($item) => [
+                'invoice_id'  => $item['invoice_id'],
+                'product_id'  => $item['product_id'],
+                'type'        => 'service',
+                'months'      => $item['months'],
+                'quantity'    => $item['quantity'],
+                'unit_price'  => $item['price'],
+                'total_price' => $item['price'] * $item['quantity'],
+            ], $productItems);
             $this->invoiceItemRepository->insert($invoiceItemData);
 
             $now = now();