<?php
  /**
   * Copyright (c) 2012 Robin Appelman <icewind@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;
  
  if (\OC_Util::runningOnWindows()) {
  	class Local extends MappedLocal {
  
  	}
  } else {
  
  	/**
  	 * for local filestore, we only have to map the paths
  	 */
  	class Local extends \OC\Files\Storage\Common {
  		protected $datadir;
  
  		public function __construct($arguments) {
  			$this->datadir = $arguments['datadir'];
  			if (substr($this->datadir, -1) !== '/') {
  				$this->datadir .= '/';
  			}
  		}
  
  		public function __destruct() {
  		}
  
  		public function getId() {
  			return 'local::' . $this->datadir;
  		}
  
  		public function mkdir($path) {

  			return @mkdir($this->datadir . $path, 0777, true);

  		}
  
  		public function rmdir($path) {
  			try {
  				$it = new \RecursiveIteratorIterator(
  					new \RecursiveDirectoryIterator($this->datadir . $path),
  					\RecursiveIteratorIterator::CHILD_FIRST
  				);

  				/**
  				 * RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
  				 * This bug is fixed in PHP 5.5.9 or before
  				 * See #8376
  				 */
  				$it->rewind();
  				while ($it->valid()) {

  					/**
  					 * @var \SplFileInfo $file
  					 */

  					$file = $it->current();

  					if (in_array($file->getBasename(), array('.', '..'))) {

  						$it->next();

  						continue;
  					} elseif ($file->isDir()) {
  						rmdir($file->getPathname());
  					} elseif ($file->isFile() || $file->isLink()) {
  						unlink($file->getPathname());
  					}

  					$it->next();

  				}
  				return rmdir($this->datadir . $path);
  			} catch (\UnexpectedValueException $e) {
  				return false;
  			}
  		}
  
  		public function opendir($path) {
  			return opendir($this->datadir . $path);
  		}
  
  		public function is_dir($path) {
  			if (substr($path, -1) == '/') {
  				$path = substr($path, 0, -1);
  			}
  			return is_dir($this->datadir . $path);
  		}
  
  		public function is_file($path) {
  			return is_file($this->datadir . $path);
  		}
  
  		public function stat($path) {
  			$fullPath = $this->datadir . $path;
  			$statResult = stat($fullPath);

  			if (PHP_INT_SIZE === 4 && !$this->is_dir($path)) {
  				$filesize = $this->filesize($path);
  				$statResult['size'] = $filesize;
  				$statResult[7] = $filesize;

  			}
  			return $statResult;
  		}
  
  		public function filetype($path) {
  			$filetype = filetype($this->datadir . $path);
  			if ($filetype == 'link') {
  				$filetype = filetype(realpath($this->datadir . $path));
  			}
  			return $filetype;
  		}
  
  		public function filesize($path) {
  			if ($this->is_dir($path)) {
  				return 0;

  			}

  			$fullPath = $this->datadir . $path;
  			if (PHP_INT_SIZE === 4) {
  				$helper = new \OC\LargeFileHelper;
  				return $helper->getFilesize($fullPath);
  			}
  			return filesize($fullPath);

  		}
  
  		public function isReadable($path) {
  			return is_readable($this->datadir . $path);
  		}
  
  		public function isUpdatable($path) {
  			return is_writable($this->datadir . $path);
  		}
  
  		public function file_exists($path) {
  			return file_exists($this->datadir . $path);
  		}
  
  		public function filemtime($path) {
  			return filemtime($this->datadir . $path);
  		}
  
  		public function touch($path, $mtime = null) {
  			// sets the modification time of the file to the given value.
  			// If mtime is nil the current time is set.
  			// note that the access time of the file always changes to the current time.
  			if ($this->file_exists($path) and !$this->isUpdatable($path)) {
  				return false;
  			}
  			if (!is_null($mtime)) {
  				$result = touch($this->datadir . $path, $mtime);
  			} else {
  				$result = touch($this->datadir . $path);
  			}
  			if ($result) {
  				clearstatcache(true, $this->datadir . $path);
  			}
  
  			return $result;
  		}
  
  		public function file_get_contents($path) {
  			return file_get_contents($this->datadir . $path);
  		}
  
  		public function file_put_contents($path, $data) { //trigger_error("$path = ".var_export($path, 1));
  			return file_put_contents($this->datadir . $path, $data);
  		}
  
  		public function unlink($path) {

  			if ($this->is_dir($path)) {
  				return $this->rmdir($path);
  			} else if ($this->is_file($path)) {
  				return unlink($this->datadir . $path);
  			} else {
  				return false;
  			}

  		}
  
  		public function rename($path1, $path2) {
  			if (!$this->isUpdatable($path1)) {
  				\OC_Log::write('core', 'unable to rename, file is not writable : ' . $path1, \OC_Log::ERROR);
  				return false;
  			}
  			if (!$this->file_exists($path1)) {
  				\OC_Log::write('core', 'unable to rename, file does not exists : ' . $path1, \OC_Log::ERROR);
  				return false;
  			}

  			if ($this->is_dir($path2)) {
  				$this->rmdir($path2);
  			} else if ($this->is_file($path2)) {
  				$this->unlink($path2);

  			}

  
  			return rename($this->datadir . $path1, $this->datadir . $path2);

  		}
  
  		public function copy($path1, $path2) {

  			if ($this->is_dir($path1)) {
  				return parent::copy($path1, $path2);
  			} else {
  				return copy($this->datadir . $path1, $this->datadir . $path2);

  			}

  		}
  
  		public function fopen($path, $mode) {
  			if ($return = fopen($this->datadir . $path, $mode)) {
  				switch ($mode) {
  					case 'r':
  						break;
  					case 'r+':
  					case 'w+':
  					case 'x+':
  					case 'a+':
  						break;
  					case 'w':
  					case 'x':
  					case 'a':
  						break;
  				}
  			}
  			return $return;
  		}

  		public function hash($type, $path, $raw = false) {

  			return hash_file($type, $this->datadir . $path, $raw);
  		}
  
  		public function free_space($path) {
  			$space = @disk_free_space($this->datadir . $path);

  			if ($space === false || is_null($space)) {

  				return \OC\Files\SPACE_UNKNOWN;
  			}
  			return $space;
  		}
  
  		public function search($query) {
  			return $this->searchInDir($query);
  		}
  
  		public function getLocalFile($path) {
  			return $this->datadir . $path;
  		}
  
  		public function getLocalFolder($path) {
  			return $this->datadir . $path;
  		}

  		/**
  		 * @param string $query
  		 */

  		protected function searchInDir($query, $dir = '') {
  			$files = array();
  			foreach (scandir($this->datadir . $dir) as $item) {
  				if ($item == '.' || $item == '..') continue;
  				if (strstr(strtolower($item), strtolower($query)) !== false) {
  					$files[] = $dir . '/' . $item;
  				}
  				if (is_dir($this->datadir . $dir . '/' . $item)) {
  					$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
  				}
  			}
  			return $files;
  		}
  
  		/**
  		 * check if a file or folder has been updated since $time
  		 *
  		 * @param string $path
  		 * @param int $time
  		 * @return bool
  		 */
  		public function hasUpdated($path, $time) {

  			if ($this->file_exists($path)) {
  				return $this->filemtime($path) > $time;
  			} else {
  				return true;
  			}
  		}
  
  		/**
  		 * {@inheritdoc}
  		 */
  		public function isLocal() {
  			return true;

  		}
  	}
  }