CourseWork/University/UniversityBusinessLogic/BusinessLogics/UserLogic.cs

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C#
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using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UniversityContracts.BindingModels;
using UniversityContracts.BusinessLogicsContracts;
using UniversityContracts.SearchModels;
using UniversityContracts.StorageContracts;
using UniversityContracts.ViewModels;
using UniversityDataModels.Enums;
namespace UniversityBusinessLogic.BusinessLogics
{
public class UserLogic : IUserLogic
{
private readonly ILogger _logger;
private readonly IUserStorage _userStorage;
public UserLogic(ILogger<IUserLogic> logger, IUserStorage userStorage)
{
_logger = logger;
_userStorage = userStorage;
}
public List<UserViewModel>? ReadList(UserSearchModel? model)
{
_logger.LogInformation("User ReadList. Login:{Login} Emain:{Email} Id:{Id}", model?.Login, model?.Email, model?.Id);
var list = model == null ? _userStorage.GetFullList() : _userStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count:{Count}", list.Count);
return list;
}
public UserViewModel? ReadElement(UserSearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation("ReadElement. Login:{Login}. Email:{Email}. Id:{Id}", model?.Login, model?.Email, model?.Id);
var element = _userStorage.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(UserBindingModel model)
{
CheckModel(model);
if (_userStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Update(UserBindingModel model)
{
CheckModel(model);
if (_userStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
public bool Delete(UserBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id:{Id}", model.Id);
if (_userStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
private void CheckModel(UserBindingModel model, bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.Login))
{
throw new ArgumentNullException("Нет логина пользователя", nameof(model.Login));
}
if (string.IsNullOrEmpty(model.Password))
{
throw new ArgumentNullException("Нет пароля пользователя", nameof(model.Password));
}
if (string.IsNullOrEmpty(model.Email))
{
throw new ArgumentNullException("Нет почты пользователя", nameof(model.Email));
}
var user1 = _userStorage.GetElement(new UserSearchModel
{
Login = model.Login
});
if (user1 != null && user1.Id != model.Id)
{
throw new InvalidOperationException("Пользователь с таким логином уже есть");
}
var user2 = _userStorage.GetElement(new UserSearchModel
{
Email = model.Email
});
if (user2 != null && user2.Id != model.Id)
{
throw new InvalidOperationException("Пользователь с такой почтой уже есть");
}
}
}
}