PIbd21_Makarov_DV_FlowerShop/FlowerShop/FlowerShopBusinessLogic/BusinessLogics/FlowerLogic.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 FlowerLogic : IFlowerLogic
{
private readonly ILogger _logger;
private readonly IFlowerStorage _flowerStorage;
public FlowerLogic(ILogger<FlowerLogic> logger, IFlowerStorage flowerStorage)
{
_logger = logger;
_flowerStorage = flowerStorage;
}
public List<FlowerViewModel>? ReadList(FlowerSearchModel? model)
{
_logger.LogInformation("ReadList. FlowerName:{FlowerName}.Id:{Id}", model?.FlowerName, model?.Id);
var list = model == null ? _flowerStorage.GetFullList() : _flowerStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count:{Count}", list.Count);
return list;
}
public FlowerViewModel? ReadElement(FlowerSearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation("ReadElement. FlowerName:{FlowerName}.Id:{ Id}", model.FlowerName, model.Id);
var element = _flowerStorage.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(FlowerBindingModel model)
{
CheckModel(model);
if (_flowerStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Update(FlowerBindingModel model)
{
CheckModel(model);
if (_flowerStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
public bool Delete(FlowerBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id:{Id}", model.Id);
if (_flowerStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
private void CheckModel(FlowerBindingModel model, bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.FlowerName))
{
throw new ArgumentNullException("Нет названия цветка ", nameof(model.FlowerName));
}
if (model.Price <= 0)
{
throw new ArgumentNullException("Цена цветка должна быть больше 0 ", nameof(model.Price));
}
if (model.FlowerComponents.Count == 0)
{
throw new ArgumentNullException("Цветок должен быть из каких-либо компонентов ", nameof(model.FlowerName));
}
_logger.LogInformation("Flower. FlowerName:{FlowerName}. Price:{Price}. Id: {Id}", model.FlowerName, model.Price, model.Id);
var element = _flowerStorage.GetElement(new FlowerSearchModel
{
FlowerName = model.FlowerName
});
if (element != null && element.Id != model.Id)
{
throw new InvalidOperationException("Цветок с таким названием уже есть");
}
}
}
}