feat: implement product variant CRUD operations and tenant configuration seeding

app/Domains/Catalog/Services/ProductService.php

@@ -2,14 +2,17 @@
 
 namespace App\Domains\Catalog\Services;
 
+use App\Domains\Attachable\Services\AttachmentService;
 use App\Domains\Catalog\Models\Attribute;
 use App\Domains\Catalog\Models\Product;
 use App\Domains\Catalog\Models\ProductVariant;
 use App\Domains\Tenant\Models\Tenant;
+use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Facades\DB;
 
 class ProductService
 {
+    public function __construct(protected AttachmentService $attachmentService) {}
     /**
      * Create a product.
      *
@@ -80,9 +83,16 @@ class ProductService
     public function createVariant(Product $product, array $data): ProductVariant
     {
         return DB::transaction(function () use ($product, $data) {
+            $images = $data['images'] ?? [];
+            unset($data['images']);
+
             $variant = $product->createVariant($data);
 
-            return $variant->load(['product', 'definitions.attribute']);
+            if (! empty($images)) {
+                $this->syncImages($variant, $images);
+            }
+
+            return $variant->load(['product', 'definitions.attribute', 'attachments']);
         });
     }
 
@@ -94,11 +104,19 @@ class ProductService
     public function updateVariant(ProductVariant $variant, array $data): ProductVariant
     {
         return DB::transaction(function () use ($variant, $data) {
+            $hasImages = array_key_exists('images', $data);
+            $images = $data['images'] ?? [];
+            unset($data['images']);
+
             /** @var Product $product */
             $product = $variant->product;
             $updatedVariant = $product->updateVariant($variant, $data);
 
-            return $updatedVariant->load(['product', 'definitions.attribute']);
+            if ($hasImages) {
+                $this->syncImages($updatedVariant, $images);
+            }
+
+            return $updatedVariant->load(['product', 'definitions.attribute', 'attachments']);
         });
     }
 
@@ -138,6 +156,29 @@ class ProductService
         });
     }
 
+    /**
+     * Upload a list of image files/base64 strings and sync them to a variant.
+     *
+     * When called on update, the existing attachments are detached first so the
+     * final set always matches exactly what was sent in the request.
+     *
+     * @param array<int, UploadedFile|string> $images
+     */
+    protected function syncImages(ProductVariant $variant, array $images): void
+    {
+        // Detach any existing attachments before replacing them
+        $variant->attachments()->detach();
+
+        $attachmentIds = [];
+
+        foreach ($images as $image) {
+            $attachment = $this->attachmentService->store($image, 'variants');
+            $attachmentIds[] = $attachment->id;
+        }
+
+        $variant->attachments()->sync($attachmentIds);
+    }
+
     /**
      * Delete an attribute.
      */