<?php


/**


 * Magento


 *


 * NOTICE OF LICENSE


 *


 * This source file is subject to the Open Software License (OSL 3.0)


 * that is bundled with this package in the file LICENSE.txt.


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


 * http://opensource.org/licenses/osl-3.0.php


 * 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@magentocommerce.com so we can send you a copy immediately.


 *


 * DISCLAIMER


 *


 * Do not edit or add to this file if you wish to upgrade Magento to newer


 * versions in the future. If you wish to customize Magento for your


 * needs please refer to http://www.magentocommerce.com for more information.


 *


 * @category    Mage


 * @package     Mage_Core


 * @copyright   Copyright (c) 2011 Magento Inc. (http://www.magentocommerce.com)


 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)


 */








/**


 * Model for synchronization from DB to filesystem


 *


 * @category    Mage


 * @package     Mage_Core


 * @author      Magento Core Team <core@magentocommerce.com>


 */


class Mage_Core_Model_Resource_File_Storage_File


{


    /**


     * Prefix of model events names


     *


     * @var string


     */


    protected $_mediaBaseDirectory = null;





    /**


     * Files at storage


     *


     * @var array


     */


    public function getMediaBaseDirectory()


    {


        if (is_null($this->_mediaBaseDirectory)) {


            $this->_mediaBaseDirectory = Mage::helper('core/file_storage_database')->getMediaBaseDir();


        }





        return $this->_mediaBaseDirectory;


    }





    /**


     * Collect files and directories recursively


     *


     * @param  string$dir


     * @return array


     */


    public function getStorageData($dir = '')


    {


        $files          = array();


        $directories    = array();


        $currentDir     = $this->getMediaBaseDirectory() . $dir;





        if (is_dir($currentDir)) {


            $dh = opendir($currentDir);


            if ($dh) {


                while (($file = readdir($dh)) !== false) {


                    if ($file == '.' || $file == '..' || $file == '.svn' || $file == '.htaccess') {


                        continue;


                    }





                    $fullPath = $currentDir . DS . $file;


                    $relativePath = $dir . DS . $file;


                    if (is_dir($fullPath)) {


                        $directories[] = array(


                            'name' => $file,


                            'path' => str_replace(DS, '/', ltrim($dir, DS))


                        );





                        $data = $this->getStorageData($relativePath);


                        $directories = array_merge($directories, $data['directories']);


                        $files = array_merge($files, $data['files']);


                    } else {


                        $files[] = $relativePath;


                    }


                }


                closedir($dh);


            }


        }





        return array('files' => $files, 'directories' => $directories);


    }





    /**


     * Clear files and directories in storage


     *


     * @param  string $dir


     * @return Mage_Core_Model_Mysql4_File_Storage_File


     */


    public function clear($dir = '')


    {


        $currentDir = $this->getMediaBaseDirectory() . $dir;





        if (is_dir($currentDir)) {


            $dh = opendir($currentDir);


            if ($dh) {


                while (($file = readdir($dh)) !== false) {


                    if ($file == '.' || $file == '..') {


                        continue;


                    }





                    $fullPath = $currentDir . DS . $file;


                    if (is_dir($fullPath)) {


                        $this->clear($dir . DS . $file);


                    } else {


                        @unlink($fullPath);


                    }


                }


                closedir($dh);


                @rmdir($currentDir);


            }


        }





        return $this;


    }





    /**


     * Save directory to storage


     *


     * @param  array $dir


     * @return bool


     */


    public function saveDir($dir)


    {


        if (!isset($dir['name']) || !strlen($dir['name'])


            || !isset($dir['path'])


        ) {


            return false;


        }





        $path = (strlen($dir['path']))


            ? $dir['path'] . DS . $dir['name']


            : $dir['name'];


        $path = Mage::helper('core/file_storage_database')->getMediaBaseDir() . DS . str_replace('/', DS, $path);





        if (!file_exists($path) || !is_dir($path)) {


            if (!@mkdir($path, 0777, true)) {


                Mage::throwException(Mage::helper('core')->__('Unable to create directory: %s', $path));


            }


        }





        return true;


    }





    /**


     * Save file to storage


     *


     * @param  string $filePath


     * @param  string $content


     * @param  bool $overwrite


     * @return bool


     */


    public function saveFile($filePath, $content, $overwrite = false)


    {


        $filename = basename($filePath);


        $path = $this->getMediaBaseDirectory() . DS . str_replace('/', DS ,dirname($filePath));





        if (!file_exists($path) || !is_dir($path)) {


            @mkdir($path, 0777, true);


        }





        $ioFile = new Varien_Io_File();


        $ioFile->cd($path);





        if (!$ioFile->fileExists($filename) || ($overwrite && $ioFile->rm($filename))) {


            $ioFile->streamOpen($filename);


            $ioFile->streamLock(true);


            $result = $ioFile->streamWrite($content);


            $ioFile->streamUnlock();


            $ioFile->streamClose();





            if ($result) {


                return true;


            }





            Mage::throwException(Mage::helper('core')->__('Unable to save file: %s', $filePath));


        }





        return false;


    }


}