XBackBone/app/Factories/ViewFactory.php

<?php

namespace App\Factories;

use App\Web\View;
use Psr\Container\ContainerInterface as Container;
use Slim\Factory\ServerRequestCreatorFactory;
use Twig\Environment;
use Twig\Loader\FilesystemLoader;
use Twig\TwigFunction;

class ViewFactory
{
    public static function createAppInstance(Container $container)
    {
        $config = $container->get('config');
        $loader = new FilesystemLoader(BASE_DIR.'resources/templates');

        $twig = new Environment($loader, [
            'cache'       => BASE_DIR.'resources/cache/twig',
            'autoescape'  => 'html',
            'debug'       => $config['debug'],
            'auto_reload' => $config['debug'],
        ]);

        $request = ServerRequestCreatorFactory::determineServerRequestCreator()->createServerRequestFromGlobals();

        $twig->addGlobal('config', $config);
        $twig->addGlobal('request', $request);
        $twig->addGlobal('session', $container->get('session'));
        $twig->addGlobal('current_lang', $container->get('lang')->getLang());
        $twig->addGlobal('maxUploadSize', stringToBytes(ini_get('post_max_size')));
        $twig->addGlobal('PLATFORM_VERSION', PLATFORM_VERSION);

        $twig->addFunction(new TwigFunction('route', 'route'));
        $twig->addFunction(new TwigFunction('lang', 'lang'));
        $twig->addFunction(new TwigFunction('urlFor', 'urlFor'));
        $twig->addFunction(new TwigFunction('asset', 'asset'));
        $twig->addFunction(new TwigFunction('mime2font', 'mime2font'));
        $twig->addFunction(new TwigFunction('queryParams', 'queryParams'));
        $twig->addFunction(new TwigFunction('isDisplayableImage', 'isDisplayableImage'));
        $twig->addFunction(new TwigFunction('inPath', 'inPath'));

        return new View($twig);
    }

    public static function createInstallerInstance(Container $container)
    {
        $config = $container->get('config');
        $loader = new FilesystemLoader([BASE_DIR.'install/templates', BASE_DIR.'resources/templates']);

        $twig = new Environment($loader, [
            'cache'       => false,
            'autoescape'  => 'html',
            'debug'       => $config['debug'],
            'auto_reload' => $config['debug'],
        ]);

        $request = ServerRequestCreatorFactory::determineServerRequestCreator()->createServerRequestFromGlobals();

        $twig->addGlobal('config', $config);
        $twig->addGlobal('request', $request);
        $twig->addGlobal('session', $container->get('session'));
        $twig->addGlobal('PLATFORM_VERSION', PLATFORM_VERSION);

        return new View($twig);
    }
}