<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\DataCollector;

use Symfony\Component\HttpKernel\KernelInterface;
use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\HttpKernel\DataCollector\DataCollector;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

/**
 * ConfigDataCollector.
 *
 * @author Fabien Potencier <fabien.potencier@symfony-project.com>
 */
class ConfigDataCollector extends DataCollector
{
    protected $kernel;

    /**
     * Constructor.
     *
     * @param KernelInterface $kernel A KernelInterface instance
     */
    public function __construct(KernelInterface $kernel)
    {
        $this->kernel = $kernel;
    }

    /**
     * {@inheritdoc}
     */
    public function collect(Request $request, Response $response, \Exception $exception = null)
    {
        $this->data = array(
            'token'           => $response->headers->get('X-Debug-Token'),
            'symfony_version' => Kernel::VERSION,
            'name'            => $this->kernel->getName(),
            'env'             => $this->kernel->getEnvironment(),
            'debug'           => $this->kernel->isDebug(),
            'php_version'     => PHP_VERSION,
            'xdebug'          => extension_loaded('xdebug'),
            'accel'           => (
                (extension_loaded('eaccelerator') && ini_get('eaccelerator.enable'))
                ||
                (extension_loaded('apc') && ini_get('apc.enabled'))
                ||
                (extension_loaded('xcache') && ini_get('xcache.cacher'))
            ),
        );
    }

    /**
     * Gets the token.
     *
     * @return string The token
     */
    public function getToken()
    {
        return $this->data['token'];
    }

    /**
     * Gets the Symfony version.
     *
     * @return string The Symfony version
     */
    public function getSymfonyVersion()
    {
        return $this->data['symfony_version'];
    }

    /**
     * Gets the PHP version.
     *
     * @return string The PHP version
     */
    public function getPhpVersion()
    {
        return $this->data['php_version'];
    }

    /**
     * Gets the application name.
     *
     * @return string The application name
     */
    public function getAppName()
    {
        return $this->data['name'];
    }

    /**
     * Gets the environment.
     *
     * @return string The environment
     */
    public function getEnv()
    {
        return $this->data['env'];
    }

    /**
     * Returns true if the debug is enabled.
     *
     * @return Boolean true if debug is enabled, false otherwise
     */
    public function isDebug()
    {
        return $this->data['debug'];
    }

    /**
     * Returns true if the XDebug is enabled.
     *
     * @return Boolean true if XDebug is enabled, false otherwise
     */
    public function hasXDebug()
    {
        return $this->data['xdebug'];
    }

    /**
     * Returns true if an accelerator is enabled.
     *
     * @return Boolean true if an accelerator is enabled, false otherwise
     */
    public function hasAccelerator()
    {
        return $this->data['accel'];
    }

    /**
     * {@inheritdoc}
     */
    public function getName()
    {
        return 'config';
    }
}