#!/usr/bin/php
<?php
	require_once 'Zend/Feed/Rss.php';
	$lastDate = strtotime(file_get_contents("/var/www/last.date"));	
	$channel = new Zend_Feed_Rss("http://feeds.feedburner.com/tedtalks_video");
	$notifyText = "New presentations:\n";
	foreach ($channel as $item) {
	  if(strtotime($item->pubDate()) > $lastDate){
		if(!isset($newDate)){
			$newDate = $item->pubDate();
			file_put_contents("/var/www/last.date", $newDate);
		}
		$notifyText .= substr($item->title(), 11);	
		$notifyText .= "\n";
		$link = $item->guid();
		exec("cd ~/Videos/Ted/ && wget " . $link);
	    } else {
		break;
	    }
	}
	if(strlen($notifyText) > 19){
		exec("DISPLAY=:0.0 /usr/bin/notify-send -i \"/var/www/ted_logo.gif\" \"$notifyText\"");
	}
?>