<?php
/*
= LuxCal RSS feeder =

© Copyright 2009-2012  LuxSoft - www.LuxSoft.eu

This file is part of the LuxCal Web Calendar.

The LuxCal Web Calendar is free software: you can redistribute it and/or modify it under 
the terms of the GNU General Public License as published by the Free Software Foundation, 
either version 3 of the License, or (at your option) any later version.

The LuxCal Web Calendar is distributed in the hope that it will be useful, but WITHOUT 
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with the LuxCal 
Web Calendar. If not, see <http://www.gnu.org/licenses/>.
*/
header("Content-Type: application/rss+xml; charset=utf-8");

//load toolbox
require './common/toolbox.php';

//connect to database
$dbPfix = dbConnect();

//get settings from database
$set = getSettings();

//set time zone
date_default_timezone_set($set['timeZone']);

//get common functions
require './common/retrieve.php';

//set language
require './lang/ui-'.strtolower($set['language']).'.php';

//set filter
$filter = '';
if (isset($_GET['cU'])) {
	$filter .= " AND e.user_id IN (".implode(",",$_GET['cU']).")";
}
if (isset($_GET['cC'])) {
	$filter .= " AND c.sequence IN (".implode(",",$_GET['cC']).")";
}
$filter = substr($filter,5);

	//feed header
echo '<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0">
<channel>
<title>'.htmlspecialchars($set['calendarTitle']).' - RSS feed</title>
<link>'.$set['calendarUrl'].'</link>
<description>'.$xx['vws_events_for_next'].' '.$set['lookaheadDays'].' '.$xx['vws_days'].'</description>
<language>en-us</language>
<category>Calendar events</category>
<pubDate>'.date("r").'</pubDate>
<generator>LuxCal Web calendar</generator>'."\n";

$fromDate = date("Y-m-d", time() - 14*86400); //14 days back

$sDate = date("Y-m-d");
$eTime = time() + (($set['lookaheadDays']-1) * 86400); //Unix time of end date
$eDate = date("Y-m-d", $eTime);

$evtList = array();
retrieve($sDate,$eDate,'',$filter);

//process events and send feeds
if ($evtList) {
	foreach($evtList as $date => &$events) {
		foreach ($events as &$evt) {
			$check = (strpos($evt['chk'], $date.'a') ? $evt['mk1'].' ' : '').(strpos($evt['chk'], $date.'b') ? $evt['mk2'].' ' : '');
			$feed  = "<item>\n";
			$feed .= "<title>".makeD($date,5).": ".$check.htmlspecialchars($evt['tit'])."</title>\n";
			$feed .= "<link>".$set['calendarUrl']."?cD=".$date."</link>\n";
 			$feed .= "<description>\n<![CDATA[\n";
			$feed .= ($evt['sti'] == "" and $evt['eti'] == "") ? $xx['vws_all_day'] : $xx['vws_time'].": ".ITtoDT($evt['sti']);
			$feed .= ($evt['eti']) ? " - ".ITtoDT($evt['eti'])."\n" : "\n";
			if ($set['details4All']) {
				if ($evt['ven']) { $feed .= "<br>{$xx['vws_venue']}: {$evt['ven']}\n"; }
				if ($evt['des']) { $feed .= "<br>{$evt['des']}\n"; }
			}
			if ($set['showCatName']) { $feed .= "<br>{$xx['evt_category']}: {$evt['cnm']}\n"; }
			if ($set['showAdEd']) {
				$feed .= '<br>'.$xx['vws_added'].': '.IDtoDD($evt['ada']).' ('.$evt['una'].')';
				if ($evt['mda'] and $evt['edr']) { $feed .= '<br>'.$xx['vws_edited'].': '.IDtoDD($evt['mda']).' ('.$evt['edr'].')'; }
			}
			$feed .= "]]>\n</description>\n";
			$feed .= "<guid isPermaLink='false'>".$set['calendarUrl']."?evt=".$evt['eid'].'&amp;'.$date."</guid>\n";
			$feed .= "</item>\n";
			echo $feed;
		}
	}
} else { //no events due
	echo "<item>
		<description>\n".$xx['vws_none_due_in']." ".$set['lookaheadDays']." ".$xx['vws_days'].".\n</description>
		<guid isPermaLink='false'>".$set['calendarUrl']."</guid>
		</item>\n";
}
echo "</channel>\n</rss>";
?>