<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 * @version    $Id: Ini.php 21983 2010-04-25 08:09:09Z jan $

 */

/**

 * @see Zend_Config_Writer

 */

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

/**

 * @category   Zend

 * @package    Zend_Config

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 */

class Zend_Config_Writer_Ini extends Zend_Config_Writer_FileAbstract

{

    /**

     * String that separates nesting levels of configuration data identifiers

     *

     * @var string

     */

    protected $_nestSeparator = '.';

    /**

     * If true the ini string is rendered in the global namespace without sections.

     *

     * @var bool

     */

    protected $_renderWithoutSections = false;

    /**

     * Set the nest separator

     *

     * @param  string $filename

     * @return Zend_Config_Writer_Ini

     */

    public function setNestSeparator($separator)

    {

        $this->_nestSeparator = $separator;

        return $this;

    }

    /**

     * Set if rendering should occour without sections or not.

     *

     * If set to true, the INI file is rendered without sections completely

     * into the global namespace of the INI file.

     *

     * @param  bool $withoutSections

     * @return Zend_Config_Writer_Ini

     */

    public function setRenderWithoutSections($withoutSections=true)

    {

        $this->_renderWithoutSections = (bool)$withoutSections;

        return $this;

    }

    /**

     * Render a Zend_Config into a INI config string.

     *

     * @since 1.10

     * @return string

     */

    public function render()

    {

        $iniString   = '';

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

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

        if($this->_renderWithoutSections == true) {

            $iniString .= $this->_addBranch($this->_config);

        } else if (is_string($sectionName)) {

            $iniString .= '[' . $sectionName . ']' . "\n"

                       .  $this->_addBranch($this->_config)

                       .  "\n";

        } else {

            $config = $this->_sortRootElements($this->_config);

            foreach ($config as $sectionName => $data) {

                if (!($data instanceof Zend_Config)) {

                    $iniString .= $sectionName

                               .  ' = '

                               .  $this->_prepareValue($data)

                               .  "\n";

                } else {

                    if (isset($extends[$sectionName])) {

                        $sectionName .= ' : ' . $extends[$sectionName];

                    }

                    $iniString .= '[' . $sectionName . ']' . "\n"

                               .  $this->_addBranch($data)

                               .  "\n";

                }

            }

        }

        return $iniString;

    }

    /**

     * Add a branch to an INI string recursively

     *

     * @param  Zend_Config $config

     * @return void

     */

    protected function _addBranch(Zend_Config $config, $parents = array())

    {

        $iniString = '';

        foreach ($config as $key => $value) {

            $group = array_merge($parents, array($key));

            if ($value instanceof Zend_Config) {

                $iniString .= $this->_addBranch($value, $group);

            } else {

                $iniString .= implode($this->_nestSeparator, $group)

                           .  ' = '

                           .  $this->_prepareValue($value)

                           .  "\n";

            }

        }

        return $iniString;

    }

    /**

     * Prepare a value for INI

     *

     * @param  mixed $value

     * @return string

     */

    protected function _prepareValue($value)

    {

        if (is_integer($value) || is_float($value)) {

            return $value;

        } elseif (is_bool($value)) {

            return ($value ? 'true' : 'false');

        } elseif (strpos($value, '"') === false) {

            return '"' . $value .  '"';

        } else {

            /** @see Zend_Config_Exception */

            require_once 'Zend/Config/Exception.php';

            throw new Zend_Config_Exception('Value can not contain double quotes "');

        }

    }

    /**

     * Root elements that are not assigned to any section needs to be

     * on the top of config.

     * 

     * @see    http://framework.zend.com/issues/browse/ZF-6289

     * @param  Zend_Config

     * @return Zend_Config

     */

    protected function _sortRootElements(Zend_Config $config)

    {

        $configArray = $config->toArray();

        $sections = array();

        // remove sections from config array

        foreach ($configArray as $key => $value) {

            if (is_array($value)) {

                $sections[$key] = $value;

                unset($configArray[$key]);

            }

        }

        // readd sections to the end

        foreach ($sections as $key => $value) {

            $configArray[$key] = $value;

        }

        return new Zend_Config($configArray);

    }

}