PIbd-22_Chernyshev_Shabunov.../ComputerShopBusinessLogic/BusinessLogics/AssemblyLogic.cs

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C#
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using ComputerShopContracts.BindingModels;
using ComputerShopContracts.BusinessLogicContracts;
using ComputerShopContracts.SearchModels;
using ComputerShopContracts.StorageContracts;
using ComputerShopContracts.ViewModels;
using Microsoft.Extensions.Logging;
namespace ComputerShopBusinessLogic.BusinessLogics
{
public class AssemblyLogic : IAssemblyLogic
{
private readonly ILogger _logger;
private readonly IAssemblyStorage _assemblyStorage;
public AssemblyLogic(ILogger<AssemblyLogic> Logger, IAssemblyStorage AssemblyStorage)
{
_logger = Logger;
_assemblyStorage = AssemblyStorage;
}
public List<AssemblyViewModel>? ReadList(AssemblySearchModel? Model)
{
var List = (Model == null) ? _assemblyStorage.GetFullList() : _assemblyStorage.GetFilteredList(Model);
if (List == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count: {Count}", List.Count);
return List;
}
public AssemblyViewModel? ReadElement(AssemblySearchModel Model)
{
if (Model == null)
throw new ArgumentNullException(nameof(Model));
var Element = _assemblyStorage.GetElement(Model);
if (Element == null)
{
_logger.LogWarning("ReadElement Assembly not found");
return null;
}
_logger.LogInformation("ReadElement Assembly found. Id: {Id}", Element.Id);
return Element;
}
public bool Create(AssemblyBindingModel Model)
{
CheckModel(Model);
if (_assemblyStorage.Insert(Model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Update(AssemblyBindingModel Model)
{
CheckModel(Model);
if (_assemblyStorage.Update(Model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
public bool Delete(AssemblyBindingModel Model)
{
CheckModel(Model, false);
_logger.LogInformation("Delete. Id:{Id}", Model.Id);
if (_assemblyStorage.Delete(Model) is null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
private void CheckModel(AssemblyBindingModel Model, bool WithParams = true)
{
if (Model == null)
throw new ArgumentNullException(nameof(Model));
if (!WithParams)
return;
if (string.IsNullOrEmpty(Model.AssemblyName))
throw new ArgumentException($"У сборки отсутствует название");
if (string.IsNullOrEmpty(Model.Category))
throw new ArgumentException($"У сборки отсутствует категория");
if (Model.Price <= 0)
throw new ArgumentException("Цена сборки должна быть больше 0", nameof(Model.Price));
var Element = _assemblyStorage.GetElement(new AssemblySearchModel
{
AssemblyName = Model.AssemblyName
});
if (Element != null && Element.Id != Model.Id)
throw new InvalidOperationException("Товар с таким названием уже есть");
}
}
}