122 lines
4.0 KiB
C#
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using ForumContracts.BindingModels;
using ForumContracts.BusinessLogicContracts;
using ForumContracts.SearchModels;
using ForumContracts.StorageContracts;
using ForumContracts.ViewModels;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ForumBusinessLogic.BusinessLogic
{
public class CategoryLogic : ICategoryLogic
{
private readonly ILogger _logger;
private readonly ICategoryStorage _categoryStorage;
public CategoryLogic(ILogger<CategoryLogic> logger, ICategoryStorage categoryStorage)
{
_logger = logger;
_categoryStorage = categoryStorage;
}
public bool Create(CategoryBindingModel model)
{
CheckModel(model);
if (_categoryStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Delete(CategoryBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id:{Id}", model.Id);
if (_categoryStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
public CategoryViewModel? ReadElement(CategorySearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation("ReadElement. Name:{FIO}.Id:{ Id}",
model.Name, model.Id);
var element = _categoryStorage.GetElement(model);
if (element == null)
{
_logger.LogWarning("ReadElement element not found");
return null;
}
_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
return element;
}
public List<CategoryViewModel>? ReadList(CategorySearchModel? model)
{
_logger.LogInformation("ReadList. Name:{Name}.Id:{ Id} ", model?.Name, model?.Id);
var list = (model == null) ? _categoryStorage.GetFullList() :
_categoryStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count:{Count}", list.Count);
return list;
}
public bool Update(CategoryBindingModel model)
{
CheckModel(model);
if (_categoryStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
private void CheckModel(CategoryBindingModel model, bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.Name))
{
throw new ArgumentNullException("Нет названия категории", nameof(model.Name));
}
if (string.IsNullOrEmpty(model.Description))
{
throw new ArgumentNullException("Нет описания категории", nameof(model.Description));
}
_logger.LogInformation("Caregory. Id: {Id}, Name: {Name}", model.Id, model.Name);
var element = _categoryStorage.GetElement(new CategorySearchModel
{
Name = model.Name,
});
if (element != null && element.Id != model.Id)
{
throw new InvalidOperationException("Категория с таким названием уже есть");
}
}
}
}