SilexProof.php

<?php
/**
* Plugin Name: Silex Proof
* Description: Silex Proof of Concept as a micro framework for developping a .... a WordPress plugin!
* Version: 1.0
* Author: .Fay Labs
*/
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Silex\Application;
use Silex\Provider\MonologServiceProvider;
use SilexProof\SettingsProvider;
use SilexProof\Events;
use SilexProof\SettingsEvent;
use Silex\Provider\TwigServiceProvider;
use SilexProof\SomeService;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;

require_once __DIR__.'/vendor/autoload.php';

$app = new Application();
$app['debug'] = false;

$request = Request::createFromGlobals();
$app['request'] = $request;

$app->register(new MonologServiceProvider(), array(
    'monolog.logfile' => __DIR__.'/dev.log',
));
$app->register(new TwigServiceProvider(), array(
    'twig.path' => __DIR__.'/views',
));
$app->register(new SettingsProvider());
$app->register(new SomeService());

//Just to get ride from an ugly exception in my pretty log
$app->match('/', function () use ($app) {
    return new Response();
});

//Manual app->run()
$app->handle($request);

//WP actions
add_action('wp_ajax_my_ajax', array($app['some_service'], 'sayHello'));

if (!$request->isXmlHttpRequest()) {
    add_action('admin_menu', array($app['settings_provider'], 'registerPage'));

    /**
     * @var EventDispatcherInterface $dispatcher
     */
    $dispatcher = $app['dispatcher'];
    $dispatcher->dispatch(Events::SETTING_PAGE_RENDERED, new SettingsEvent('WP!!!!'));
}