BlacksmithWorkshop/BlacksmithWorkshopContracts/StoragesContracts/IComponentStorage.cs

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+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.SearchModels;
+using BlacksmithWorkshopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlacksmithWorkshopContracts.StoragesContracts
+{
+    //класс хранилища компонентов
+    public interface IComponentStorage
+    {
+        List<ComponentViewModel> GetFullList();
+
+        List<ComponentViewModel> GetFilteredList(ComponentSearchModel model);
+
+        ComponentViewModel? GetElement(ComponentSearchModel model);
+
+        ComponentViewModel? Insert(ComponentBindingModel model);
+
+        ComponentViewModel? Update(ComponentBindingModel model);
+
+        ComponentViewModel? Delete(ComponentBindingModel model);
+    }
+}

BlacksmithWorkshop/BlacksmithWorkshopContracts/StoragesContracts/IOrderStorage.cs

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+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.SearchModels;
+using BlacksmithWorkshopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlacksmithWorkshopContracts.StoragesContracts
+{
+    //класс для хранилища заказов
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+
+        List<OrderViewModel> GetFilteredList(OrderSearchModel model);
+
+        OrderViewModel? GetElement(OrderSearchModel model);
+
+        OrderViewModel? Insert(OrderBindingModel model);
+
+        OrderViewModel? Update(OrderBindingModel model);   
+
+        OrderViewModel? Delete(OrderBindingModel model);   
+    }
+}

BlacksmithWorkshop/BlacksmithWorkshopContracts/StoragesContracts/IProductStorage.cs

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+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.SearchModels;
+using BlacksmithWorkshopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlacksmithWorkshopContracts.StoragesContracts
+{
+    //класс для хранилища продуктов
+    public interface IProductStorage
+    {
+        List<ProductViewModel> GetFullList();
+
+        List<ProductViewModel> GetFilteredList(ProductSearchModel model);
+
+        ProductViewModel? GetElement(ProductSearchModel model);
+
+        ProductViewModel? Insert(ProductBindingModel model);
+
+        ProductViewModel? Update(ProductBindingModel model);
+
+        ProductViewModel? Delete(ProductBindingModel model);
+    }
+}