migrate to gtea from bistbucket

public/restaurant/app/Helper/OrderHelper.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Helper;
+
+use Carbon\Carbon;
+use Illuminate\Support\Facades\DB;
+use Modules\Restaurant\Models\Order;
+
+class OrderHelper
+{
+    /**
+     * Generate a unique order number for the restaurant.
+     *
+     * Format: ORD-{YYYYMMDD}-{RestaurantId}-{AutoIncrement}
+     */
+    public static function generateOrderNumber(int $restaurantId): string
+    {
+        $today = Carbon::now()->format('Ymd');
+
+        // Fetch last order (including soft-deleted)
+        $lastOrder = DB::table('orders')
+            ->where('restaurant_id', $restaurantId)
+            ->whereDate('created_at', Carbon::today())
+            ->orderByDesc('id')
+            ->first();
+
+        $lastIncrement = 0;
+
+        if ($lastOrder && preg_match('/ORD-\d{8}-\d+-([\d]+)/', $lastOrder->order_number, $matches)) {
+            $lastIncrement = (int) $matches[1];
+        }
+
+        $newIncrement = $lastIncrement + 1;
+
+        // Ensure unique, retry if needed (handles rare race conditions)
+        do {
+            $orderNumber = sprintf('ORD-%s-%d-%04d', $today, $restaurantId, $newIncrement);
+            $exists = Order::withTrashed()->where('order_number', $orderNumber)->exists();
+
+            if ($exists) {
+                $newIncrement++;
+            }
+        } while ($exists);
+
+        return $orderNumber;
+    }
+}