<?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\DependencyInjection;

/**

 * SimpleXMLElement class.

 *

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

 */

class SimpleXMLElement extends \SimpleXMLElement

{

    /**

     * Converts an attribute as a php type.

     *

     * @param string $name

     * @return mixed

     */

    public function getAttributeAsPhp($name)

    {

        return self::phpize($this[$name]);

    }

    /**

     * Returns arguments as valid php types.

     *

     * @param string  $name

     * @param Boolean $lowercase

     *

     * @return mixed

     */

    public function getArgumentsAsPhp($name, $lowercase = true)

    {

        $arguments = array();

        foreach ($this->$name as $arg) {

            if (isset($arg['name'])) {

                $arg['key'] = (string) $arg['name'];

            }

            $key = isset($arg['key']) ? (string) $arg['key'] : (!$arguments ? 0 : max(array_keys($arguments)) + 1);

            // parameter keys are case insensitive

            if ('parameter' == $name && $lowercase) {

                $key = strtolower($key);

            }

            // this is used by DefinitionDecorator to overwrite a specific

            // argument of the parent definition

            if (isset($arg['index'])) {

                $key = 'index_'.$arg['index'];

            }

            switch ($arg['type']) {

                case 'service':

                    $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;

                    if (isset($arg['on-invalid']) && 'ignore' == $arg['on-invalid']) {

                        $invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;

                    } elseif (isset($arg['on-invalid']) && 'null' == $arg['on-invalid']) {

                        $invalidBehavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;

                    }

                    if (isset($arg['strict'])) {

                        $strict = self::phpize($arg['strict']);

                    } else {

                        $strict = true;

                    }

                    $arguments[$key] = new Reference((string) $arg['id'], $invalidBehavior, $strict);

                    break;

                case 'collection':

                    $arguments[$key] = $arg->getArgumentsAsPhp($name, false);

                    break;

                case 'string':

                    $arguments[$key] = (string) $arg;

                    break;

                case 'constant':

                    $arguments[$key] = constant((string) $arg);

                    break;

                default:

                    $arguments[$key] = self::phpize($arg);

            }

        }

        return $arguments;

    }

    /**

     * Converts an xml value to a php type.

     *

     * @param mixed $value

     * @return mixed

     */

    static public function phpize($value)

    {

        $value = (string) $value;

        $lowercaseValue = strtolower($value);

        switch (true) {

            case 'null' === $lowercaseValue:

                return null;

            case ctype_digit($value):

                return '0' == $value[0] ? octdec($value) : intval($value);

            case 'true' === $lowercaseValue:

                return true;

            case 'false' === $lowercaseValue:

                return false;

            case is_numeric($value):

                return '0x' == $value[0].$value[1] ? hexdec($value) : floatval($value);

            case preg_match('/^(-|\+)?[0-9,]+(\.[0-9]+)?$/', $value):

                return floatval(str_replace(',', '', $value));

            default:

                return $value;

        }

    }

}