<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Config

 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

/**

 * @see Zend_Config_Writer

 */

require_once 'Zend/Config/Writer/FileAbstract.php';

/**

 * @see Zend_Config_Json

 */

require_once 'Zend/Config/Json.php';

/**

 * @category   Zend

 * @package    Zend_Config

 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Config_Writer_Json extends Zend_Config_Writer_FileAbstract

{

    /**

     * If we need to pretty-print JSON data

     *

     * @var boolean

     */

    protected $_prettyPrint = false;

    /**

     * Get prettyPrint flag

     *

     * @return the prettyPrint flag

     */

    public function prettyPrint()

    {

        return $this->_prettyPrint;

    }

    /**

     * Set prettyPrint flag

     *

     * @param  bool $prettyPrint PrettyPrint flag

     * @return Zend_Config_Writer_Json

     */

    public function setPrettyPrint($flag)

    {

        $this->_prettyPrint = (bool) $flag;

        return $this;

    }

    /**

     * Render a Zend_Config into a JSON config string.

     *

     * @since 1.10

     * @return string

     */

    public function render()

    {

        $data        = $this->_config->toArray();

        $sectionName = $this->_config->getSectionName();

        $extends     = $this->_config->getExtends();

        if (is_string($sectionName)) {

            $data = array($sectionName => $data);

        }

        foreach ($extends as $section => $parentSection) {

            $data[$section][Zend_Config_Json::EXTENDS_NAME] = $parentSection;

        }

        // Ensure that each "extends" section actually exists

        foreach ($data as $section => $sectionData) {

            if (is_array($sectionData) && isset($sectionData[Zend_Config_Json::EXTENDS_NAME])) {

                $sectionExtends = $sectionData[Zend_Config_Json::EXTENDS_NAME];

                if (!isset($data[$sectionExtends])) {

                    // Remove "extends" declaration if section does not exist

                    unset($data[$section][Zend_Config_Json::EXTENDS_NAME]);

                }

            }

        }

        $out = Zend_Json::encode($data);

        if ($this->prettyPrint()) {

             $out = Zend_Json::prettyPrint($out);

        }

        return $out;

    }

}