<?php
  /**
   * Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  namespace OC\Preview;

  use Imagick;

  if (extension_loaded('imagick')) {

  	$checkImagick = new Imagick();

  	if(count($checkImagick->queryFormats('PDF')) === 1) {

  		class PDF extends Provider {

  			public function getMimeType() {
  				return '/application\/pdf/';

  			}

  			public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
  				$tmpPath = $fileview->toTmpFile($path);
  
  				//create imagick object from pdf
  				try{
  					$pdf = new Imagick($tmpPath . '[0]');
  					$pdf->setImageFormat('jpg');
  				} catch (\Exception $e) {
  					\OC_Log::write('core', $e->getmessage(), \OC_Log::ERROR);
  					return false;
  				}
  
  				unlink($tmpPath);
  
  				//new image object
  				$image = new \OC_Image($pdf);
  				//check if image object is valid
  				return $image->valid() ? $image : false;
  			}

  		}

  		\OC\Preview::registerProvider('OC\Preview\PDF');
  	}

  }