<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

namespace Zend\Stdlib\Hydrator;

use Zend\Stdlib\Exception;

class ObjectProperty extends AbstractHydrator
{
    /**
     * Extract values from an object
     *
     * Extracts the accessible non-static properties of the given $object.
     *
     * @param  object $object
     * @return array
     * @throws Exception\BadMethodCallException for a non-object $object
     */
    public function extract($object)
    {
        if (!is_object($object)) {
            throw new Exception\BadMethodCallException(sprintf(
                '%s expects the provided $object to be a PHP object)', __METHOD__
            ));
        }

        $data = get_object_vars($object);

        $filter = $this->getFilter();
        foreach ($data as $name => $value) {
            // Filter keys, removing any we don't want
            if (!$filter->filter($name)) {
                unset($data[$name]);
                continue;
            }
            // Replace name if extracted differ
            $extracted = $this->extractName($name, $object);
            if ($extracted !== $name) {
                unset($data[$name]);
                $name = $extracted;
            }
            $data[$name] = $this->extractValue($name, $value, $object);
        }

        return $data;
    }

    /**
     * Hydrate an object by populating public properties
     *
     * Hydrates an object by setting public properties of the object.
     *
     * @param  array $data
     * @param  object $object
     * @return object
     * @throws Exception\BadMethodCallException for a non-object $object
     */
    public function hydrate(array $data, $object)
    {
        if (!is_object($object)) {
            throw new Exception\BadMethodCallException(sprintf(
                '%s expects the provided $object to be a PHP object)', __METHOD__
            ));
        }
        foreach ($data as $name => $value) {
            $property = $this->hydrateName($name, $data);
            $object->$property = $this->hydrateValue($property, $value, $data);
        }
        return $object;
    }
}
