using ModuleTools.BindingModels;
using ModuleTools.Enums;
using ModuleTools.Interfaces;
using ModuleTools.Models;
using ModuleTools.ViewModels;
using System;
using System.Collections.Generic;
namespace ModuleTools.BusinessLogics
{
///
/// Базовый класс для логики сущности
///
///
///
///
///
public abstract class BusinessLogicCore
where G : GetBindingModel
where S : SetBindingModel
where L : ListViewModel
where E : ElementViewModel
{
///
/// Перечень ошибок при выполнении операции
///
public List<(string Title, string Message)> Errors { get; protected set; }
protected IEntityService Service { get; set; }
protected ISecurityManager Security { get; set; }
protected readonly AccessOperation _serviceOperation;
protected readonly string _entity;
public BusinessLogicCore(IEntityService service, string entity, AccessOperation serviceOperation)
{
Service = service;
Errors = new List<(string Title, string Message)>();
Security = UnityContainerConfigurator.Resolve();
_entity = entity;
_serviceOperation = serviceOperation;
}
///
/// Проверка доступности операции для пользователя
///
///
///
///
protected bool NoAccess(AccessBindingModel model, AccessType type)
{
if (Security.CheckAccess(new SecurityManagerCheckAccessModel(model, _serviceOperation, type, _entity)))
{
return false;
}
Errors.Add(("Ошибка безопасности", Security.ErrorMessage));
return true;
}
///
/// Получение списка записей
///
///
///
public L GetList(G model)
{
Errors.Clear();
try
{
if (NoAccess(model, AccessType.SimpleView) && NoAccess(model, AccessType.FullView))
{
return null;
}
var result = Service.Read(model);
if (!result.IsSucceeded)
{
Errors.AddRange(Errors);
return null;
}
return result.Result as L;
}
catch (Exception ex)
{
Errors.Add(("Ошибка получения", ex.Message));
}
return null;
}
///
/// Получение записи
///
///
///
public E GetElement(G model)
{
Errors.Clear();
try
{
if (NoAccess(model, AccessType.SimpleView) && NoAccess(model, AccessType.FullView))
{
return null;
}
var result = Service.Read(model);
if (!result.IsSucceeded)
{
Errors.AddRange(Errors);
return null;
}
return result.Result as E;
}
catch (Exception ex)
{
Errors.Add(("Ошибка получения", ex.Message));
}
return null;
}
///
/// Создание записи
///
///
///
public E Create(S model)
{
Errors.Clear();
try
{
if (NoAccess(model, AccessType.Change))
{
return null;
}
var result = Service.Create(model);
if (!result.IsSucceeded)
{
Errors.AddRange(Errors);
return null;
}
return result.Result as E;
}
catch (Exception ex)
{
Errors.Add(("Ошибка создания", ex.Message));
}
return null;
}
///
/// Изменение записи
///
///
///
public E Update(S model)
{
Errors.Clear();
try
{
if (NoAccess(model, AccessType.Change))
{
return null;
}
var result = Service.Update(model);
if (!result.IsSucceeded)
{
Errors.AddRange(Errors);
return null;
}
return result.Result as E;
}
catch (Exception ex)
{
Errors.Add(("Ошибка изменения", ex.Message));
}
return null;
}
///
/// Удаление записи
///
///
///
public bool Delete(G model)
{
Errors.Clear();
try
{
if (NoAccess(model, AccessType.Delete))
{
return false;
}
var result = Service.Delete(model);
if (!result.IsSucceeded)
{
Errors.AddRange(Errors);
return false;
}
return true;
}
catch (Exception ex)
{
Errors.Add(("Ошибка удаления", ex.Message));
}
return false;
}
}
}