PIbd-21_Bakalskaya_E.D._Sus.../SushiBarBusinessLogic/SushiLogic.cs

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C#
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using SushiBarContracts.BindingModel;
using SushiBarContracts.BusinessLogicsContracts;
using SushiBarContracts.SearchModel;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using Microsoft.Extensions.Logging;
namespace SushiBarBusinessLogic.BusinessLogic
{
public class SushiLogic : ISushiLogic
{
private readonly ILogger _logger;
private readonly ISushiStorage _sushiStorage;
public SushiLogic(ILogger<SushiLogic> logger, ISushiStorage sushiStorage)
{
_logger = logger;
_sushiStorage = sushiStorage;
}
public List<SushiViewModel>? ReadList(SushiSearchModel? model)
{
_logger.LogInformation("ReadList. SushiName:{SushiName}. Id:{ Id}", model?.SushiName, model?.Id);
var list = model == null ? _sushiStorage.GetFullList() : _sushiStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count:{Count}", list.Count);
return list;
}
public SushiViewModel? ReadElement(SushiSearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation("ReadElement. SushiName:{SushiName}.Id:{ Id}", model.SushiName, model.Id);
var element = _sushiStorage.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(SushiBindingModel model)
{
CheckModel(model);
if (_sushiStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Update(SushiBindingModel model)
{
CheckModel(model);
if (_sushiStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
public bool Delete(SushiBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id:{Id}", model.Id);
if (_sushiStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
private void CheckModel(SushiBindingModel model, bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.SushiName))
{
throw new ArgumentNullException("Нет названия компонента", nameof(model.SushiName));
}
if (model.Price <= 0)
{
throw new ArgumentNullException("Цена продукта должна быть больше 0", nameof(model.Price));
}
_logger.LogInformation("Sushi. SushiName:{SushiName}. Price:{ Price}. Id: { Id}",
model.SushiName, model.Price, model.Id);
var element = _sushiStorage.GetElement(new SushiSearchModel{SushiName = model.SushiName});
if (element != null && element.Id != model.Id)
{
throw new InvalidOperationException("Компонент с таким названием уже есть");
}
}
}
}