feat(variants): implement inventory cloning for historical stock updates and adjust related tests

app/Domains/FiestaFutbolInfantil/Services/FoodService.php

@@ -126,8 +126,6 @@ class FoodService
             $variantIds = collect($variants)->pluck('id')->map(fn ($id): int => (int) $id);
             $historicalVariants = $food->variants()
                 ->whereIn('id', $variantIds)
-                ->whereNull('sales_disabled_at')
-                ->whereNull('replaced_by_variant_id')
                 ->with(['inventory', 'eventDate', 'eventDates'])
                 ->lockForUpdate()
                 ->get()
@@ -145,10 +143,7 @@ class FoodService
                 }
 
                 $stock = (int) $data['stock'];
-                $inventory = Inventory::query()
-                    ->whereKey($variant->inventory_id)
-                    ->lockForUpdate()
-                    ->firstOrFail();
+                $inventory = $this->inventoryForHistoricalStockUpdate($variant);
                 if ($stock < $inventory->reserved_stock) {
                     throw ValidationException::withMessages([
                         "variants.{$index}.stock" => [
@@ -164,6 +159,32 @@ class FoodService
         });
     }
 
+    private function inventoryForHistoricalStockUpdate(Variant $variant): Inventory
+    {
+        $inventory = Inventory::query()
+            ->whereKey($variant->inventory_id)
+            ->lockForUpdate()
+            ->firstOrFail();
+        $variantsSharingInventory = Variant::query()
+            ->where('inventory_id', $inventory->getKey())
+            ->orderBy('id')
+            ->lockForUpdate()
+            ->get(['id']);
+
+        if ($variantsSharingInventory->count() === 1) {
+            return $inventory;
+        }
+
+        $historicalInventory = Inventory::query()->create([
+            'sold_units' => $inventory->sold_units,
+            'reserved_stock' => 0,
+            'real_stock' => $inventory->real_stock,
+        ]);
+        $variant->update(['inventory_id' => $historicalInventory->getKey()]);
+
+        return $historicalInventory;
+    }
+
     public function delete(Tenant $tenant, int $foodId): void
     {
         $variant = Variant::query()