fixed 0.4 категории воскресли!

ElectronicsShop/ElectronicsShopBusinessLogic/BusinessLogic/CategoryProductLogic.cs

@@ -0,0 +1,95 @@
+using ElectronicsShopContracts.BindingModels;
+using ElectronicsShopContracts.BusinessLogicContracts;
+using ElectronicsShopContracts.SearchModels;
+using ElectronicsShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ElectronicsShopBusinessLogic.BusinessLogic
+{
+    public class CategoryProductLogic : ICategoryProductLogic
+    {
+        private readonly ILogger _logger;
+        //private readonly ICategoryProductStorage _storage;
+
+        // todo нет интерфейса хранилища
+        public CategoryProductLogic(ILogger<CategoryProductLogic> logger) { 
+            _logger = logger;
+        }
+
+        public bool Create(CategoryProductBindingModel model)
+        {
+            CheckModel(model);
+            // todo _storage.Insert(model) == null
+            if (model == null) {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(CategoryProductBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation($"Delete. ID:{model.ID}");
+            // todo _storage.Insert(model) == null
+            if (model == null) {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(CategoryProductBindingModel model)
+        {
+            CheckModel(model);
+            // todo _storage.Insert(model) == null
+            if (model == null) {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public List<CategoryProductViewModel>? ReadList(CategoryProductSearchModel? model)
+        {
+            _logger.LogInformation($"ReadList. ID:{model?.ID}");
+            // todo model == null _CategoryProductStorage.GetFullList() : _CategoryProductStorage.GetFilteredList(model);
+            var list = model;
+            if (list == null) {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            // todo $"ReadList. Count:{list.count}"
+            _logger.LogInformation("ReadList. Count:{Count}");
+            // todo return list;
+            return null;
+        }
+
+        private void CheckModel(CategoryProductBindingModel model, bool withParams = true) { 
+            if (model == null) { 
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams) {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name)) {
+                throw new ArgumentNullException("Нет названия категории продукта", nameof(model.Name));
+            }
+            _logger.LogInformation($"CategoryProduct. Name:{model.Name}");
+            /*
+            var element = _ CategoryProductStorage.GetElement(new  CategoryProductSearchModel
+			{
+				Name = model.Name
+			});
+			if (element != null && element.Id != model.ID)
+			{
+				throw new InvalidOperationException("Категория с таким названием уже есть");
+			}
+            */
+        }
+    }
+}