<?php
/**
 * Directory class 
 * 
 * @package Sabre
 * @subpackage DAV
 * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
 * @author Evert Pot (http://www.rooftopsolutions.nl/) 
 * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
 */
class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sabre_DAV_ICollection, Sabre_DAV_IQuota {

	/**
	 * Creates a new file in the directory
	 *
	 * data is a readable stream resource
	 *
	 * @param string $name Name of the file
	 * @param resource $data Initial payload
	 * @return void
	 */
	public function createFile($name, $data = null) {

		$newPath = $this->path . '/' . $name;
		OC_Filesystem::file_put_contents($newPath,$data);

	}

	/**
	 * Creates a new subdirectory
	 *
	 * @param string $name
	 * @return void
	 */
	public function createDirectory($name) {

		$newPath = $this->path . '/' . $name;
		OC_Filesystem::mkdir($newPath);

	}

	/**
	 * Returns a specific child node, referenced by its name
	 *
	 * @param string $name
	 * @throws Sabre_DAV_Exception_FileNotFound
	 * @return Sabre_DAV_INode
	 */
	public function getChild($name) {

		$path = $this->path . '/' . $name;

		if (!OC_Filesystem::file_exists($path)) throw new Sabre_DAV_Exception_FileNotFound('File with name ' . $path . ' could not be located');

		if (OC_Filesystem::is_dir($path)) {

			return new OC_Connector_Sabre_Directory($path);

		} else {

			return new OC_Connector_Sabre_File($path);

		}

	}

	/**
	 * Returns an array with all the child nodes
	 *
	 * @return Sabre_DAV_INode[]
	 */
	public function getChildren() {

		$nodes = array();
		// foreach(scandir($this->path) as $node) if($node!='.' && $node!='..') $nodes[] = $this->getChild($node);
		if( OC_Filesystem::is_dir($this->path)){
			$dh = OC_Filesystem::opendir($this->path);
			while(( $node = readdir($dh)) !== false ){
				if($node!='.' && $node!='..'){
					$nodes[] = $this->getChild($node);
				}
			}
		}
		return $nodes;

	}

	/**
	 * Checks if a child exists.
	 *
	 * @param string $name
	 * @return bool
	 */
	public function childExists($name) {

		$path = $this->path . '/' . $name;
		return OC_Filesystem::file_exists($path);

	}

	/**
	 * Deletes all files in this directory, and then itself
	 *
	 * @return void
	 */
	public function delete() {

		foreach($this->getChildren() as $child) $child->delete();
		OC_Filesystem::rmdir($this->path);

	}

	/**
	 * Returns available diskspace information
	 *
	 * @return array
	 */
	public function getQuotaInfo() {

		return array(
			OC_Filesystem::filesize('/'),
			OC_Filesystem::free_space()
			);

	}

}