PIbd21_Makarov_DV_FlowerShop/FlowerShop/FlowerShopBusinessLogic/BusinessLogics/ComponentLogic.cs

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C#
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using FlowerShopContracts.BindingModels;
using FlowerShopContracts.BusinessLogicsContracts;
using FlowerShopContracts.SearchModels;
using FlowerShopContracts.StoragesContracts;
using FlowerShopContracts.ViewModels;
using Microsoft.Extensions.Logging;
namespace FlowerShopBusinessLogic.BusinessLogics
{
public class ComponentLogic : IComponentLogic
{
private readonly ILogger _logger;
private readonly IComponentStorage _componentStorage;
public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage
componentStorage)
{
_logger = logger;
_componentStorage = componentStorage;
}
public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
{
_logger.LogInformation("ReadList. ComponentName:{ComponentName}.Id:{ Id}", model?.ComponentName, model?.Id);
var list = model == null ? _componentStorage.GetFullList() :
_componentStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count:{Count}", list.Count);
return list;
}
public ComponentViewModel? ReadElement(ComponentSearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation("ReadElement. ComponentName:{ComponentName}.Id:{ Id}", model.ComponentName, model.Id);
var element = _componentStorage.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(ComponentBindingModel model)
{
CheckModel(model);
if (_componentStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Update(ComponentBindingModel model)
{
CheckModel(model);
if (_componentStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
public bool Delete(ComponentBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id:{Id}", model.Id);
if (_componentStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
private void CheckModel(ComponentBindingModel model, bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.ComponentName))
{
throw new ArgumentNullException("Нет названия компонента",
nameof(model.ComponentName));
}
if (model.Cost <= 0)
{
throw new ArgumentNullException("Цена компонента должна быть больше 0", nameof(model.Cost));
}
_logger.LogInformation("Component. ComponentName:{ComponentName}. Cost:{ Cost}. Id: { Id}", model.ComponentName, model.Cost, model.Id);
var element = _componentStorage.GetElement(new ComponentSearchModel
{
ComponentName = model.ComponentName
});
if (element != null && element.Id != model.Id)
{
throw new InvalidOperationException("Компонент с таким названием уже есть");
}
}
}
}