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Application.php
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Application.php
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<?php
/**
* User: TheCodeholic
* Date: 7/7/2020
* Time: 9:57 AM
*/
namespace thecodeholic\phpmvc;
use thecodeholic\phpmvc\db\Database;
/**
* Class Application
*
* @author Zura Sekhniashvili <zurasekhniashvili@gmail.com>
* @package app
*/
class Application
{
const EVENT_BEFORE_REQUEST = 'beforeRequest';
const EVENT_AFTER_REQUEST = 'afterRequest';
protected array $eventListeners = [];
public static Application $app;
public static string $ROOT_DIR;
public string $userClass;
public string $layout = 'main';
public Router $router;
public Request $request;
public Response $response;
public ?Controller $controller = null;
public Database $db;
public Session $session;
public View $view;
public ?UserModel $user;
public function __construct($rootDir, $config)
{
$this->user = null;
$this->userClass = $config['userClass'];
self::$ROOT_DIR = $rootDir;
self::$app = $this;
$this->request = new Request();
$this->response = new Response();
$this->router = new Router($this->request, $this->response);
$this->db = new Database($config['db']);
$this->session = new Session();
$this->view = new View();
$userId = Application::$app->session->get('user');
if ($userId) {
$key = $this->userClass::primaryKey();
$this->user = $this->userClass::findOne([$key => $userId]);
}
}
public static function isGuest()
{
return !self::$app->user;
}
public function login(UserModel $user)
{
$this->user = $user;
$className = get_class($user);
$primaryKey = $className::primaryKey();
$value = $user->{$primaryKey};
Application::$app->session->set('user', $value);
return true;
}
public function logout()
{
$this->user = null;
self::$app->session->remove('user');
}
public function run()
{
$this->triggerEvent(self::EVENT_BEFORE_REQUEST);
try {
echo $this->router->resolve();
} catch (\Exception $e) {
echo $this->router->renderView('_error', [
'exception' => $e,
]);
}
}
public function triggerEvent($eventName)
{
$callbacks = $this->eventListeners[$eventName] ?? [];
foreach ($callbacks as $callback) {
call_user_func($callback);
}
}
public function on($eventName, $callback)
{
$this->eventListeners[$eventName][] = $callback;
}
}