<?php
/**
 * REST Serializer / Unserializer JSON
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage base
 */

WBClass::load( 'WBRest_Serializer' );

/**
 * REST Serializer / Unserializer JSON
 *
 * @version 0.1.1
 * @package WB
 * @subpackage base
 */
class WBRest_Serializer_Json extends WBRest_Serializer
{
    /**
     * format string of server error
     *
     * @var string
     */
    protected $errorFrame =   '{
"status": "error",
"errors": [{
        "code": "%d",
        "message": "%s"
    }]
}';

    /**
     * Unserialize Request
     *
     * Convert Request body to data array
     *
     * @param string $body
     * @return array $data
     */
    public function unserialize($body)
    {
        $body   =   trim($body);
        $all    =   json_decode($body, true);
        if (!is_array($all)) {
            $all    =   array(
                                'data' => array()
                            );
        } else if (!isset($all['data']) || !is_array($all['data'])) {
            $all['data']    =   array();
        }

        return $all['data'];
    }

    /**
     * Serialize data
     *
     * Convert array data for response
     *
     * @param array $data
     * @return string $body
     */
    public function serialize($data)
    {
        return json_encode($data);
    }
}