Doctrine integration

Hi,
I'm trying to integrate doctrine 2.6.4 with CI 4.

Doctrine was installed via composer.

App/Libraries/Doctrine.php

Code:

<?php

include_once dirname(__DIR__, 2) . '/vendor/autoload.php';

use Doctrine\Common\ClassLoader;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\Tools\Setup;
use Doctrine\ORM\Mapping\Driver\YamlDriver;


class Doctrine
{

    public $em;

    public function __construct()
    {


        $connection_options = array(
            'driver'        => 'pdo_mysql',
            'user'            => 'root',
            'password'    => 'password',
            'host'            => 'localhost',
            'dbname'        => 'project',
            'charset'        => 'utf8',
            'driverOptions'    => array(
                'charset'    => 'utf8',
            ),
        );

        $models_namespace = 'Entities';
        $models_path = APPPATH . 'Models';
        $proxies_dir = APPPATH . 'Models/Proxies';
        $metadata_paths = array(APPPATH . 'Models/Entities');

        $dev_mode = true;
        $cache = null;
        $useSimpleAnnotationReader = false;
        $config = Setup::createAnnotationMetadataConfiguration($metadata_paths, $dev_mode, $proxies_dir, $cache, $useSimpleAnnotationReader);
        $this->em = EntityManager::create($connection_options, $config);

        //YAML
        $yamlDriver = new YamlDriver(APPPATH . 'Models/Mappings');
        $config->setMetadataDriverImpl($yamlDriver);
        $loader = new ClassLoader($models_namespace, $models_path);
        $loader->register();
    }

}

App/Doctrine.php

Code:

<?php


define('APPPATH', dirname(__FILE__) . '/');
define('ENVIRONMENT', 'development');

chdir(APPPATH);

require __DIR__ . '/Libraries/Doctrine.php';

foreach ($GLOBALS as $helperSetCandidate) {
    if ($helperSetCandidate instanceof \Symfony\Component\Console\Helper\HelperSet) {
        $helperSet = $helperSetCandidate;
        break;
    }
}

$doctrine = new Doctrine;
$em = $doctrine->em;

$helperSet = new \Symfony\Component\Console\Helper\HelperSet(array(
    'db' => new \Doctrine\DBAL\Tools\Console\Helper\ConnectionHelper($em->getConnection()),
    'em' => new \Doctrine\ORM\Tools\Console\Helper\EntityManagerHelper($em)
));

\Doctrine\ORM\Tools\Console\ConsoleRunner::run($helperSet);

Everything is working with the console i can render Entities via YML Mappings so everything is connected to my db and so on

Then i'm just calling doctrine in the Base controller in CI 3 i was using the load->library

require APPPATH.'/Libraries/Doctrine.php';

And here is the problem i can't initiate the entityManager i tried in different way but im all the time getting a undefined property or undefinedclass :

PHP Code:

<?php namespace App\Controllers;

class Home extends BaseController
{


    public function index()
    {

         //TEST 1
         $em = $this->doctrine->getEntityManager();

         //TEST 2 with the name of my entities
         $test= new DebugTest();

        return view('welcome_message');
    }



} 


I know it's maybe complicated or me who's missing something but would be amazing any kind of help, a lot of users of CI are using doctrine as an orm and would really help me for my future project