<?php
/**
 * Copyright (c) 2013 Thomas Müller <thomas.mueller@owncloud.com>
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */

namespace OC\Files\Storage;

set_include_path(get_include_path() . PATH_SEPARATOR .
	\OC_App::getAppPath('files_external') . '/3rdparty/irodsphp/prods/src');

require_once 'ProdsStreamer.class.php';

class iRODS extends \OC\Files\Storage\StreamWrapper{
	private $password;
	private $user;
	private $host;
	private $port;
	private $zone;
	private $root;

	public function __construct($params) {
		if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
			$this->host=$params['host'];
			$this->port=$params['port'];
			$this->user=$params['user'];
			$this->password=$params['password'];
			$this->zone=$params['zone'];

			$this->root=isset($params['root'])?$params['root']:'/';
			if ( ! $this->root || $this->root[0]!='/') {
				$this->root='/'.$this->root;
			}
			//create the root folder if necessary
			if ( ! $this->is_dir('')) {
				$this->mkdir('');
			}
		} else {
			throw new \Exception();
		}
		
	}

	public function getId(){
		return 'irods::' . $this->user . '@' . $this->host . '/' . $this->root;
	}

	/**
	 * construct the ftp url
	 * @param string $path
	 * @return string
	 */
	public function constructUrl($path) {
		$userWithZone = $this->user.'.'.$this->zone;
		return 'rods://'.$userWithZone.':'.$this->password.'@'.$this->host.':'.$this->port.$this->root.$path;
	}

//	public function fopen($path,$mode) {
//		$this->init();
//		switch($mode) {
//			case 'r':
//			case 'rb':
//			case 'w':
//			case 'wb':
//			case 'a':
//			case 'ab':
//				//these are supported by the wrapper
//				$context = stream_context_create(array('ftp' => array('overwrite' => true)));
//				return fopen($this->constructUrl($path), $mode, false, $context);
//			case 'r+':
//			case 'w+':
//			case 'wb+':
//			case 'a+':
//			case 'x':
//			case 'x+':
//			case 'c':
//			case 'c+':
//				//emulate these
//				if (strrpos($path, '.')!==false) {
//					$ext=substr($path, strrpos($path, '.'));
//				} else {
//					$ext='';
//				}
//				$tmpFile=\OCP\Files::tmpFile($ext);
//				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
//				if ($this->file_exists($path)) {
//					$this->getFile($path, $tmpFile);
//				}
//				self::$tempFiles[$tmpFile]=$path;
//				return fopen('close://'.$tmpFile, $mode);
//		}
//		return false;
//	}
//
//	public function writeBack($tmpFile) {
//		$this->init();
//		if (isset(self::$tempFiles[$tmpFile])) {
//			$this->uploadFile($tmpFile, self::$tempFiles[$tmpFile]);
//			unlink($tmpFile);
//		}
//	}
}