CarCenter/CarCenterBusinessLogic/BusinessLogics/BundlingLogic.cs

@@ -100,7 +100,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
 			{
 				throw new ArgumentNullException("Цена должна быть больше 0", nameof(model.Price));
 		    }
-			_logger.LogInformation("Component. Bundling:Id:{ Id}.Price:{ Price}", model.Id, model.Price);
+			_logger.LogInformation("Bundling. Bundling:Id:{ Id}.Price:{ Price}", model.Id, model.Price);
 		}
 
 	}

CarCenter/CarCenterBusinessLogic/BusinessLogics/CarLogic.cs

@@ -0,0 +1,114 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.BusinessLogicsContracts;
+using CarCenterContracts.SearchModels;
+using CarCenterContracts.StoragesContracts;
+using CarCenterContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarCenterBusinessLogic.BusinessLogics
+{
+	public class CarLogic : ICarLogic
+	{
+		private readonly ILogger _logger;
+		private readonly ICarStorage _carStorage;
+		public CarLogic(ILogger<CarLogic> logger, ICarStorage carStorage)
+		{
+			_logger = logger;
+			_carStorage = carStorage;
+		}
+
+		public List<CarViewModel>? ReadList(CarSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. VINnumber:{VINnumber}.Id:{ Id}", model?.VINnumber, model?.Id);
+			var list = model == null ? _carStorage.GetFullList() : _carStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+
+		public CarViewModel? ReadElement(CarSearchModel model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. VINnumber:{VINnumber}.Id:{ Id}", model?.VINnumber, model?.Id);
+			var element = _carStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+			return element;
+		}
+
+		public bool Create(CarBindingModel model)
+		{
+			CheckModel(model);
+			if (_carStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		public bool Update(CarBindingModel model)
+		{
+			CheckModel(model);
+			if (_carStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		public bool Delete(CarBindingModel model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete. Id:{Id}", model.Id);
+			if (_carStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		private void CheckModel(CarBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (model.VINnumber <= 0)
+			{
+				throw new ArgumentNullException("Нет VIN-номера", nameof(model.VINnumber));
+		    }
+			_logger.LogInformation("Car. VINnumber:{VINnumber}. Id: { Id}", model.VINnumber, model.Id);
+			var element = _carStorage.GetElement(new CarSearchModel
+			{
+				VINnumber = model.VINnumber,
+			});
+			if (element != null && element.Id != model.Id)
+			{
+				throw new InvalidOperationException("Компонент с таким VIN-номером уже есть");
+		    }
+		}
+	}
+}