<?php
  	
  	function check_thumb_exists($location) {
  		$image_path = rtrim($location,'pdf').'png';
  		if(!file_exists('/opt/lampp/htdocs/owncloud/data/priyanka/reader'.$image_path)) {
  			$check = "false";
  		}
  		else
  			$check = "true";
  		return $check;
  	}
  
  	function thumb($path) {
  		$thumb_path = \OCP\Config::getSystemValue( 'datadirectory' ).'/'.\OC_User::getUser().'/reader';
  		if (file_exists($thumb_path.$path)) {
  			return new \OC_Image($thumb_path.$path);
  		}
  		if (!\OC_Filesystem::file_exists($path)) {
  			return false;
  		}
  	}
  
  	function check_dir_exists($current_dir,$dir) {
  		$owner = OCP\USER::getUser();
  		$path = OCP\Config::getSystemValue("datadirectory").'/'. $owner .'/reader';
  		$path .= $current_dir.$dir;
  		if (!is_dir($path)) {
  			mkdir($path, 0777, true);
  			return true;
  		}
  		else
  			return true;
  	}
  
  ?>