<?php

namespace Stack;

use Symfony\Component\HttpKernel\HttpKernelInterface;

use Symfony\Component\HttpKernel\TerminableInterface;

use Symfony\Component\HttpFoundation\Request;

use Symfony\Component\HttpFoundation\Response;

class StackedHttpKernel implements HttpKernelInterface, TerminableInterface

{

private $app;

private $middlewares = array();

public function __construct(HttpKernelInterface $app, array $middlewares)

{

$this->app = $app;

$this->middlewares = $middlewares;

}

public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)

{

return $this->app->handle($request, $type, $catch);

}

public function terminate(Request $request, Response $response)

{

$prevKernel = null;

foreach ($this->middlewares as $kernel) {

// if prev kernel was terminable we can assume this middleware has already been called

if (!$prevKernel instanceof TerminableInterface && $kernel instanceof TerminableInterface) {

$kernel->terminate($request, $response);

}

$prevKernel = $kernel;

}

}

}