<?php
/*
* Created on March 17th, 2012
* By Vivek Kumar Bagaria <vivekee047@gmail.com>
*/ 

class ApiImageRotate extends ApiBase {
	
		protected $mParams		;
		protected $mAngle 	= 0	;
		protected $mTitle		;
		
        public function __construct( $main, $action ) {
                parent::__construct( $main, $action );
        }
 
        public function execute() {
        	        
			$this->initializeParams() ;
			$user = $this->getUser() ;
			//Spilting the title into various images 
			$imagelist = explode("|", $this->mTitle) ;
			asort($imagelist) ;
			// Looping over each image given in the title
			foreach ($imagelist as $image) {
				$FilePath = wfFindFile($image)->getLocalRefPath () ;
				
				// Check if the rotation angle is a multiple of 90 degrees
				
				if(!is_null($this->mAngle) && ($this->mAngle%90==0))
				{	
					$this->mResultantImage = $this->rotateImage($FilePath) ;
					$stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash() ;
					$pathsaved = imagejpeg($this->mResultantImage,$FilePath) ;
				}
			}
	}
 
        public function rotateImage($FilePath){
        	$Imagesource 	= imagecreatefromjpeg($FilePath) ;
			$rotatedImage 	= imagerotate($Imagesource, $this->mAngle,0) ;
			return $rotatedImage ;
        }
        
        public function initializeParams()
        {
	        $this->mParams 	= $this->extractRequestParams() ;
			$this->mAngle  	= $this->mParams['angle'] ;
			$this->mTitle	= $this->mParams['title'] ;
        }
        
        public function getAllowedParams() {
                return array(
                        'title' 	=>array(
                				ApiBase::PARAM_REQUIRED => true ,
                		),
                        'angle'		=> array(
                				ApiBase::PARAM_DFLT => 0,
                		),
                );
        }
 
        public function getParamDescription() {
        	$p = $this->getModulePrefix() ;
                return array(
                        'title' 	=> 'The title of the image(s) to be rotated',
                		'angle'		=> 'The angle of rotation',
                );
        }
 
        public function getVersion() {
                return __CLASS__ . ': $Id: ApiParse.php 109693 2012-01-21 21:36:07Z $' ;
        }
}