<?php
class DeviantArt{
	function getDeviation($id){
		return new Deviation($id);
	}
	function getImageURL($id, $size = 150){
		$deviation = new Deviation($id);
		return $deviation->getURL($size);
	}
	function getDeviations($args){
		$deviations = array();
		$items = dda_fetch_rss(DeviantArt::createRSS($args));
		//var_dump($items);
		foreach( (array)$items->items as $item){
			$over = array('title' => $item['title'], 'href' => $item['link'], 'category' => $item['category']);
			$d = new Deviation($item['guid'], $over);
			if( ! empty($d->urls) )
				$deviations[] = $d;
		}
		
		return $deviations;
	}
	
	function createRSS($args){
		$fragments = array();
		//Main search item:
		if( true == $args['user'] )
			$fragments[] = 'by:' . $args['term'];
		elseif( true == $args['fav'] )
			$fragments[] = 'favby:' . $args['term'];
		elseif( true == $args['search'] )
			$fragments[] = $args['term'];
		
		//Deal with the Order:
		switch( $args['order'] ){
			case 'popular24h':
				$fragments[] = "boost:popular age_sigma:24h";
				break;
			case 'popular3d':
				$fragments[] = "boost:popular max_age:72h";
				break;
			case 'popular1w':
				$fragments[] = "boost:popular max_age:168h";
				break;
			case 'popular1m':
				$fragments[] = "boost:popular max_age:744h";
				break;
			case 'popular':
				$fragments[] = "boost:popular";
				break;
			default:
			case 'time':
				$fragments[] = "sort:time";
				break;
		}
		if( isset($args['scraps']) && $args['scraps'] == false )
			$fragments[] = "-in:scraps";
		
		if( !isset($args['mature']) || $args['mature'] == false )
			$fragments[] = "!attribute:DEV_META_MATURE";
		
		//Add all the fragments together as a Search term: (and urlencode it)
		$fragments = array( 'q=' . urlencode(implode(' ',$fragments)) );

		//Create Feed:
		return 'http://backend.deviantart.com/rss.xml?type=deviation&'.implode('&',$fragments);
	}
	
	function loadFromXML($id){
		$remote = dda_http('http://backend.deviantart.com/embed/info.php?id=' . $id);
		if( ! $remote )
			return new WP_Error('Cannot load Deviation');
		if( preg_match('|<error>(.*?)</error>|i', $remote->content, $mat) )
			return new WP_Error($mat[1]);

		if( ! preg_match('|<array>(.*?)</array>|imxs',$remote->content,$mat) ||
			! preg_match_all('|<(.*?)>(.*?)</\\1>|imxs',$mat[1],$mat) )
				return new WP_Error('Invalid XML Response');

		$return = array();
		for($i = 0; $i< count($mat[1]); $i++){
			if( strpos($mat[2][$i], '<![CDATA[') > -1 )
				$mat[2][$i] = str_replace( array('<![CDATA[', ']]>'), '', $mat[2][$i]);
			$return[ $mat[1][$i] ] = $mat[2][$i];
		}
		return $return;
	}
	function loadFromRedirect($id,$item=150){
		
		if( in_array($item,array(100,150,300,'300W')))
			$size = $item;
		else
			$size = 150;
		$url = "http://www.deviantart.com/global/getthumb.php?size=$size&id=$id";

		$remote = dda_http($url);

		if( ! preg_match('|/([a-zA-Z_]+?)_by_(.*?).jpg|i',$remote->headers['Location'],$mat) )
			return new WP_Error('Cannot load Deviation');
		
		$details = array(	'title' => str_replace('_',' ',$mat[1]), 
							'username' => str_replace('_',' ',$mat[2]),
							$size => $headers['Location'] );
		return $details;
	}
}

class Deviation{
	var $id = 0;
	var $title = '';
	var $user = '';
	var $userSymbol = '~';
	var $submitted = 0;
	var $resolution = array('W'=>0,'H'=>0);
	
	var $category = '';
	var $urls = array();
	
	function Deviation($id, $over_details = array() ){
		$this->id = $id;
		$details = wp_cache_get($this->id,'dda2');
		if( ! $details )
			$details = DDA_Cache::get('Deviation' . $id);
			
		if( ! $details ) {
			$details = DeviantArt::loadFromXML($this->id);
			if( ! $details || is_wp_error($details) )
				$details = DeviantArt::loadFromRedirect($this->id);
		}

		wp_cache_set($this->id, $details, 'dda2', 60*30);

		DDA_Cache::set('Deviation' . $id, $details, 60*60*24*7);//1 week

		$details = (array)$over_details + (array)$details;

		foreach((array)$details as $name => $value){
			if( $value == null )
				continue;
			switch($name){
				case 'title': 		$this->title = $value; 					break;
				case 'ts':			$this->submitted = $value;				break;
				case 'height':		$this->resolution['H'] = (int)$value;	break;
				case 'width':		$this->resolution['W'] = (int)$value;	break;
				case 'symbol':		$this->userSymbol = $value;				break;
				case 'username':	$this->user = $value;					break;
				case 'deviationid':	$this->id = (int)$value;				break;
				case 'category':
				case 'cattitle':	$this->category = $value;				break;
				case 100:
				case 'onehundred':	$this->urls[100] = $value;				break;
				case 150:
				case 'onefifty':	$this->urls[150] = $value;				break;
				case 300:
				case '300W':
				case 'threehundred':$this->urls[300] = $value;				break;
				case 'fileurl':		$this->urls['full'] = $value;			break;
			}
		}
	}
	
	function getURL($size=150, $rep = false){
		if( $size == '300W' )
			$size = 300;
		$url = isset($this->urls[$size]) ? $this->urls[$size] : false;

		if( $url ){
			return $url;
		} else {
			if( $rep )
				return false;
			$details = DeviantArt::loadFromRedirect($this->id, $size);
			if( $details && ! is_wp_error($details) )
				$this->Deviation($this->id, $details );
			return $this->getURL($size,true);
		}
	}

}
?>