refactor(catalog): Complete catalog refactor to simplify its data model and its querying.

source commits: refactor/catalog

app/Domains/Cart/Services/CartService.php

@@ -3,11 +3,8 @@
 namespace App\Domains\Cart\Services;
 
 use App\Domains\Auth\Models\User;
-use App\Domains\Bundle\Models\Bundle;
 use App\Domains\Cart\Models\Cart;
-use App\Domains\Catalog\Models\ProductVariant;
 use App\Domains\Tenant\Models\Tenant;
-use Illuminate\Database\Eloquent\Relations\MorphTo;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Str;
@@ -36,12 +33,17 @@ class CartService
     /**
      * @return array{cart: Cart, guest_token: ?string}
      */
-    public function addItem(Tenant $tenant, Request $request, string $buyableType, int $buyableId, int $quantity): array
-    {
+    public function addItem(
+        Tenant $tenant,
+        Request $request,
+        int $catalogItemId,
+        ?int $variantId,
+        int $quantity,
+    ): array {
         $resolvedIdentity = $this->resolveIdentity($request, true);
         $identity = $resolvedIdentity['identity'];
         $cart = $this->findOrCreateCart($tenant, $identity);
-        $cart->addItem($buyableType, $buyableId, $quantity);
+        $cart->addItem($catalogItemId, $variantId, $quantity);
 
         return [
             'cart' => $this->loadCart($cart),
@@ -97,16 +99,11 @@ class CartService
     protected function loadCart(Cart $cart): Cart
     {
         return $cart->fresh()->load([
-            'items.buyable' => function (MorphTo $morphTo): void {
-                $morphTo->morphWith([
-                    ProductVariant::class => [
-                        'product',
-                        'definitions.productAttribute.attribute',
-                        'attachments',
-                    ],
-                    Bundle::class => ['items.variant'],
-                ]);
-            },
+            'items.catalogItem.attachments',
+            'items.catalogItem.inventory',
+            'items.variant.attachments',
+            'items.variant.inventory',
+            'items.variant.definitions.itemAttribute.attribute',
         ]);
     }