98 lines
2.7 KiB
C#
98 lines
2.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using UniversityContracts.BindingModels;
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using UniversityContracts.BusinessLogicContracts;
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using UniversityContracts.SearchModels;
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using UniversityContracts.StoragesContracts;
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using UniversityContracts.ViewModels;
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namespace UniversityBusinessLogic.BusinessLogics
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{
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public class UserLogic : IUserLogic
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{
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private readonly IUserStorage _userStorage;
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public UserLogic(IUserStorage userStorage)
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{
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_userStorage = userStorage;
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}
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public bool Create(UserBindingModel model)
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{
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CheckModel(model);
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if (_userStorage.Insert(model) == null)
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{
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return false;
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}
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return true;
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}
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public bool Delete(UserBindingModel model)
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{
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CheckModel(model, false);
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if (_userStorage.Delete(model) == null)
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{
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return false;
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}
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return true;
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}
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public UserViewModel? ReadElement(UserSearchModel model)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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var user = _userStorage.GetElement(model);
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if (user == null)
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{
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return null;
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}
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return user;
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}
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public List<UserViewModel>? ReadList(UserSearchModel? model)
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{
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var list = model == null ? _userStorage.GetFullList() : _userStorage.GetFilteredList(model);
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if (list == null)
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{
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return null;
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}
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return list;
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}
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public bool Update(UserBindingModel model)
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{
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CheckModel(model, false);
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if (_userStorage.Update(model) == null)
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{
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return false;
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}
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return true;
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}
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private void CheckModel(UserBindingModel model, bool withParams = true)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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if (!withParams)
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{
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return;
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}
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if (string.IsNullOrEmpty(model.Login))
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{
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throw new ArgumentNullException("Нет логина", nameof(model.Login));
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}
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var user = _userStorage.GetElement(new UserSearchModel{Login = model.Login});
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if (user != null)
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{
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throw new InvalidOperationException("Пользователь с таким логином уже есть");
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}
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}
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}
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}
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