Refactor order creation logic by introducing CreateOrderService and removing the create method from OrderRepository. Update ProductRepository with stricter type declarations and fix minor typos in comments.

app/Services/Order/CreateOrderService.php

@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services\Order;
+
+use App\Events\Ecommerce\Product\Order\OrderCreated;
+use App\Models\Ecommerce\Product\Order\Order;
+use App\Models\User;
+use Illuminate\Support\Facades\DB;
+
+class CreateOrderService
+{
+    /**
+     * Create a new order for the user
+     *
+     * @param  User  $user
+     * @param  array  $data
+     * @return Order
+     */
+    public function execute(User $user, array $data): Order
+    {
+        return DB::transaction(function () use ($user, $data) {
+            // 1. Create the order
+            $order = Order::create($data);
+
+            // 2. Process Cart Items
+            $user->carts()
+                ->with(['product' => function ($query) {
+                    $query->with(['media', 'channels']);
+                }])
+                ->get()
+                ->each(function ($cart) use ($order) {
+                    // Create Order Item
+                    DB::table('order_items')->insert([
+                        'product_name' => $cart->product->name,
+                        'product_id' => $cart->product_id,
+                        'order_id' => $order->id,
+                        'channel_id' => $cart->product->channels->first()?->id ?? tmpostChannel()->id,
+                        'quantity' => $cart->product_quantity,
+                        'unit_price_amount' => $cart->product->price_amount,
+                        'unit_cost_amount' => $cart->product->cost_amount,
+                        'created_at' => now(),
+                        'updated_at' => now(),
+                    ]);
+
+                    // Update Stock
+                    $cart->product->update([
+                        'stock' => $cart->product->stock - $cart->product_quantity,
+                    ]);
+                });
+
+            // 3. Clear User Cart
+            $user->carts()->delete();
+
+            // 4. Dispatch Event
+            OrderCreated::dispatch($order);
+
+            return $order;
+        });
+    }
+}