Merge branch 'feature/cart_editing_policy' into dev

app/Domains/Purchase/Resources/PurchaseItemResource.php

@@ -3,6 +3,7 @@
 namespace App\Domains\Purchase\Resources;
 
 use App\Domains\Cart\Models\CartItem;
+use App\Domains\Catalog\Enums\InventoryPolicy;
 use App\Domains\Catalog\Models\CatalogItem;
 use App\Domains\Catalog\Models\Variant;
 use App\Domains\Purchase\Models\PurchaseItem;
@@ -25,6 +26,14 @@ class PurchaseItemResource extends JsonResource
                 : null;
             $attributes = $this->variant_attributes ?? [];
 
+            $catalogItem = $this->relationLoaded('sourceCatalogItem')
+                ? $this->sourceCatalogItem
+                : null;
+            $includeVariants = $tenant instanceof Tenant
+                && $tenant->cart_editing_policy->allowsVariantChanges()
+                && $catalogItem !== null
+                && $catalogItem->relationLoaded('variants');
+
             return [
                 'id' => $this->id,
                 'quantity' => (int) $this->cantidad,
@@ -39,6 +48,13 @@ class PurchaseItemResource extends JsonResource
                     'imagen' => $imageUrl,
                     'attributes' => $attributes,
                 ],
+                'variants' => $this->when(
+                    $includeVariants,
+                    fn () => $catalogItem
+                        ->visibleVariants($this->source_variant_id)
+                        ->map(fn (Variant $variant): array => $this->variantData($catalogItem, $variant))
+                        ->values(),
+                ),
             ];
         }
 
@@ -132,4 +148,17 @@ class PurchaseItemResource extends JsonResource
     {
         return number_format((float) ($amount ?? 0), 2, '.', '');
     }
+
+    /** @return array<string, mixed> */
+    private function variantData(CatalogItem $catalogItem, Variant $variant): array
+    {
+        return [
+            'id' => $variant->id,
+            'precio' => $this->formatMoney($variant->precio ?? $catalogItem->precio),
+            'stock_tecnico' => $catalogItem->inventory_policy === InventoryPolicy::Unlimited
+                ? null
+                : $variant->inventory->availableStock(),
+            'values' => $variant->selectorOptions($catalogItem->itemAttributes),
+        ];
+    }
 }