<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\HttpKernel\Debug;

/**

 * ErrorHandler.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class ErrorHandler

{

    private $levels = array(

        E_WARNING           => 'Warning',

        E_NOTICE            => 'Notice',

        E_USER_ERROR        => 'User Error',

        E_USER_WARNING      => 'User Warning',

        E_USER_NOTICE       => 'User Notice',

        E_STRICT            => 'Runtime Notice',

        E_RECOVERABLE_ERROR => 'Catchable Fatal Error',

    );

    private $level;

    /**

     * Register the error handler.

     *

     * @param integer $level The level at which the conversion to Exception is done (null to use the error_reporting() value and 0 to disable)

     *

     * @return The registered error handler

     */

    static public function register($level = null)

    {

        $handler = new static();

        $handler->setLevel($level);

        set_error_handler(array($handler, 'handle'));

        return $handler;

    }

    public function setLevel($level)

    {

        $this->level = null === $level ? error_reporting() : $level;

    }

    /**

     * @throws \ErrorException When error_reporting returns error

     */

    public function handle($level, $message, $file, $line, $context)

    {

        if (0 === $this->level) {

            return false;

        }

        if (error_reporting() & $level && $this->level & $level) {

            throw new \ErrorException(sprintf('%s: %s in %s line %d', isset($this->levels[$level]) ? $this->levels[$level] : $level, $message, $file, $line));

        }

        return false;

    }

}