<?php

namespace User;

use Base\Hydrator\Strategy\DateTimeStrategy;
use Zend\ModuleManager\Feature\AutoloaderProviderInterface;
use Zend\ModuleManager\Feature\FormElementProviderInterface;
use Zend\ModuleManager\Feature\ServiceProviderInterface;
use Zend\ModuleManager\Feature\ViewHelperProviderInterface;
use Zend\ModuleManager\ModuleManager;
use Zend\Mvc\MvcEvent;
use Zend\ServiceManager\ServiceLocatorInterface;
use Zend\Stdlib\Hydrator\ClassMethods;
use Auth\View\Helper\UserIdentity;

class Module implements
    AutoloaderProviderInterface,
    FormElementProviderInterface,
    ServiceProviderInterface,
    ViewHelperProviderInterface
{
    public function getAutoloaderConfig()
    {
        return array(
            'Zend\Loader\StandardAutoloader' => array(
                'namespaces' => array(
                    // if we're in a namespace deeper than one level we need to fix the \ in the path
                    __NAMESPACE__ => __DIR__ . '/src/' . str_replace('\\', '/', __NAMESPACE__),
                    'Perfil' => __DIR__ . '/src/' . str_replace('\\', '/', 'Perfil'),
                    'Auth' => __DIR__ . '/src/' . str_replace('\\', '/', 'Auth'),
                ),
            ),
        );
    }

    public function init(ModuleManager $moduleManager)
    {
        //Get eventos compartilhados
        $sharedEvents = $moduleManager->getEventManager()
            ->getSharedManager();

        //Anexar (atach) nosso evento mvcPreDispatch ao sharedEvents
        //É rodado antes de dar o dispatch na página
        $sharedEvents->attach(
            'Zend\Mvc\Controller\AbstractActionController', //tipo
            MvcEvent::EVENT_DISPATCH,
            array(
                $this, //aonde está o método
                'mvcPreDispatch' //nome do método
            ),
            100 //prioridade
        );
    }

    //Valida Autenticaçãode usuário
    public function mvcPreDispatch(MvcEvent $e)
    {
        $routeAuth = 'user-auth';

        //Pega Controller
        $controller = $e->getTarget();

        //Get sessão de usuário autenticado
        $auth = $controller->getServicelocator()
            ->get('Authentication');

        //Verifica pela rota se o user pode ou não acessar (matchedRoute = Rota correspondente)
        $matched = $controller->getEvent()
            ->getRouteMatch();

        $matchedRoute = $matched->getMatchedRouteName(); //Pega a rota que está sendo acessada

        $matchedAction = $matched->getParam('action');

        //Se não estiver Logado e sua rota não for rota de autenticação redireciona
        if (!$auth->hasIdentity() and
            $matchedRoute != $routeAuth and
            $matchedAction != 'add' and
            $matchedRoute != 'home'
        ) {
            $controller->flashMessenger()->addErrorMessage("Você não está Logado.");

            return $controller->redirect()->toRoute($routeAuth);

        } elseif ($auth->hasIdentity()) {
            $this->verificaAcl(
                $e,
                $auth->getIdentity()['user'] //Dados do usuário Logado
            );
        }
    }

    public function verificaAcl(MvcEvent $e, $user)
    {
        $acl = $e->getApplication()
            ->getServiceManager()
            ->get('Acl\Permissions\Acl');

        $matches = $e->getRouteMatch();
        //Rota Acessada
        $matchedRoute = $matches->getMatchedRouteName();
        //Controller acessado
        $matchedController = ucfirst($matches->getParam('controller'));
        //Action Acessada
        $matchecAction = $matches->getParam('action');

        $role = $this->verifyRole($user->getPerfil());

        if (!$acl->isAllowed($role, $matchedController, $matchecAction)) {

            $controller = $e->getTarget();
            $controller->flashMessenger()
                ->addErrorMessage("Você não tem permissão para acessar está área.");

            $url = $e->getRouter()->assemble(array(), array('name' => 'user-perfil'));
            $response = $e->getResponse();
            $response->getHeaders()->addHeaders(array(
                array('Location' => $url )
            ));
            $response->setStatusCode(302);
            $response->sendHeaders();
            exit;
        }
    }

    //Se Role estiver vazia ou não existir é dado o Papel de Cliente
    public function verifyRole($role)
    {
        if (isset($role) and !empty($role))
            return $role;

        return $role = 'Cliente';
    }

    public function getConfig()
    {
        return include __DIR__ . '/config/module.config.php';
    }

    public function getServiceConfig()
    {
        return include __DIR__ . '/config/service.config.php';
    }

    public function getFormElementConfig()
    {
        return array(
            'invokables' => array(
                'User\Form\CreateUser' => 'User\Form\CreateUser'
            ),
            'factories' => array(
                'User\Form\UserFieldset' => function (ServiceLocatorInterface $sm) {
                        $serviceLocator = $sm->getServiceLocator();

                        $entity = $serviceLocator->get('User\Entity\User');
                        $em = $serviceLocator->get('Doctrine\ORM\EntityManager');

                        //Strategie para datade Nascimento
                        $hydrator = new ClassMethods(false);
                        $hydrator->addStrategy('dataNascimento', new DateTimeStrategy());

                        $userFieldset = new Form\UserFieldset('user', $hydrator, $entity);
                        $userFieldset->setObjectManager($em);

                        return $userFieldset;
                    },
                'User\Form\AddressFieldset' => function (ServiceLocatorInterface $sm) {
                        $hydrator = new ClassMethods(false);

                        $serviceLocator = $sm->getServiceLocator();
                        $entity = $serviceLocator->get('User\Entity\Address');

                        return new Form\AddressFieldset(
                            'address',
                            $hydrator,
                            $entity
                        );
                    },
            )
        );
    }

    public function getViewHelperConfig()
    {
        return array(
                'invokables' => array(
                    'userIdentity' => 'Auth\View\Helper\UserIdentity'
            ),
        );
    }
}