<?php
require_once 'vendor/autoload.php';
use ICal\ICal;
static $DATE_FORMAT = 'd.m.Y H:i';
static $VISITORS_FILE = '/opt/dorf.jetzt_visitors';
static $DORF_IN_LOCKDOWN = true;
static $DORF_VIRTUAL_EVENTS = true;
static $ICAL_URL = 'https://chaosdorf.de/~derf/cccd_all.ics';
$state_map = array(
	'closed' => (object) array(
		'state_string' => 'Das Dorf ist gerade <em>geschlossen</em>.',
		'svg' => 'lock',
		'color' => 'red',
	),
	'maybe_open' => (object) array(
		'state_string' => 'Das Dorf ist gerade <em>vielleicht geöffnet</em>: </p><p>Der Clubraum ist offen, aber es findet keine Veranstaltung statt.</p><p>
		Der Status kann sich also kurzfristig ändern.',
		'svg' => 'done',
		'color' => 'brown',
	),
	'open' => (object) array(
		'state_string' => 'Das Dorf ist gerade <em>geöffnet</em>.</p><p>
		Komm gerne vorbei.',
		'svg' => 'done',
		'color' => 'green',
	),
	'private' => (object) array(
		'state_string' => 'Das Dorf ist gerade <em>privat</em>: </p><p>Es sind Leute da, aber der Clubraum ist nicht geöffnet.</p><p>
		Komm gerne vorbei (aber frag lieber vorher, wie lange noch Leute da sind).',
		'svg' => 'lock',
		'color' => 'fdd835',
	),
	'unknown' => (object) array(
		'state_string' => 'Der Status vom Dorf ist gerade <em>unbekannt</em>',
		'svg' => 'warning',
		'color' => 'orange',
	),
	'error' => (object) array(
		'state_string' => 'Der Server konnte den Status vom Dorf nicht abrufen.',
		'svg' => 'error',
		'color' => 'blue',
	),
);
$hash_to_state = array(
	'bff0167ed8aba031c49122ef4046cf1b' => 'closed',
	'd8ec899c69283bc775952a767db9d5f5' => 'maybe_open',
	'2c2672c641425e5b2acd6ee74f39ae60' => 'open',
	'66aece8ae27ffd3a656d42005fa3efbd' => 'private',
	'86c75c0ad413b06ff8291673162d0b64' => 'unknown',
	'0' => 'error',
);
if ($DORF_VIRTUAL_EVENTS || ! $DORF_IN_LOCKDOWN){
$img = file_get_contents('https://chaosdorf.de/raumstatus/status.png');
$hash = md5($img);
$state = $hash_to_state[$hash];
$ical = new ICal(false, array(
		'defaultSpan' => 2,
		'defaultTimeZone' => 'Europe/Berlin',
		'defaultWeekStart' => 'MO',
		'filterDaysBefore' => '1',
	));
$ical->initUrl($ICAL_URL, $acceptLanguage = 'de');
$events = $ical->eventsFromInterval('2 week');
$first_event = $events[0];
$events = array_slice($events, 1);
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
	$locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
	setlocale(LC_TIME, $locale);
}
}
function format_event($event): string{
	global $DATE_FORMAT, $ical;
	$startdate_loop = $ical->iCalDateToDateTime($event->dtstart_array[3]);
	$startdate_str = $startdate_loop->format($DATE_FORMAT);
	$interval_loop = new DateInterval($event->duration);
	if ($interval_loop->d != 0 || $interval_loop->h >= 24){
		$enddate_str = $startdate_loop->add($interval_loop)->format($DATE_FORMAT);
	}else{
		$enddate_str = $startdate_loop->add($interval_loop)->format('H:i');
	}
	return $startdate_str . ' &ndash; ' . $enddate_str; 
}
$v = file_get_contents($VISITORS_FILE);
?>
<!DOCTYPE html>
<html lang="de">
<head>
	<title>Was geht im Dorf.jetzt?</title>
	<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
	<link rel="stylesheet" href="assets/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
	<link href="assets/font/Material-Icons.css" rel="stylesheet">
	<meta charset="UTF-8" />
</head>
<body>
	<div class="container">
		<nav class="navbar">	
			<h1 class="text-center">Was geht im Dorf.jetzt?</h1><hr />
		</nav>
		<?php if($DORF_IN_LOCKDOWN): ?>
		<div class="card mb-3 text-center">
			<div class="card-body">
				<h5 class="card-title">Das Chaosdorf ist geschlossen</h5>
				<img src="assets/svg/ic_lock_48px.svg" style="filter:url(assets/css/filter.svg#red);height:16rem;width:auto;" />
				<p class="card-text font-weight-normal">Das Chaosdorf öffnet vorsichtig wieder.</p>
				<p class="card-text font-weight-normal">Veranstaltungen finden teilweise hybrid oder online-only statt.</p>
				<p class="card-text font-weight-normal">Einwählen zu den Veranstaltungen könnt ihr euch hier: <a href="https://wiki.chaosdorf.de/VirtualSpace">VirtualSpace</a></p>
			</div>
		</div>
		
		<?php else: ?>
		<div class="card mb-3 text-center">
			<div class="card-body">
				<h5 class="card-title">Türstatus</h5>
				<img src="assets/svg/ic_<?= $state_map[$state]->svg ?>_48px.svg" style="filter:url(assets/css/filter.svg#<?= $state_map[$state]->color ?>);height:16rem;width:auto;" />
				<p class="card-text"><?= $state_map[$state]->state_string ?></p>
					<div class="btn-wrapper">
						<a href="https://wiki.chaosdorf.de/Raumstatus" class="btn btn-lg btn-block btn-primary">What's this?</a>
					</div>
			</div>
		</div>
		<?php endif ?>
		<?php if($DORF_VIRTUAL_EVENTS || !$DORF_IN_LOCKDOWN): ?>
		<div class="card mb-3 text-center">
			<div class="card-body">
				<h5 class="card-title">Events</h5>
				<?php if (!empty($events)) : ?>
				<h6 class="card-subtitle mb-2 text-muted">Nächste Veranstaltung</h6>
				<p class="card-text">
					<h5 class="font-weight-bold"><?= htmlspecialchars($first_event->summary, ENT_QUOTES, 'UTF-8') ?></h5>
					<span class="font-weight-normal"><?= format_event($first_event) ?></span>
					<span class="font-weight-normal"><a href="<?= $first_event->url ?>">Details zur Veranstaltung</a></span>
				</p>
				<h5 class="card-title">Danach:</h5>
				<table class="table">
					<tbody>
					<?php foreach ($events as $event) : ?>
						<tr>
							<th scope="row"><?=format_event($event)?></th>
							<td><?= htmlspecialchars($event->summary) ?></td>
							<td><a href="<?= $event->url ?>">Details</a></td>
						</tr>
					<?php endforeach ?>
					</tbody>
				</table>
				<a href="https://wiki.chaosdorf.de/Chaosdorf_Wiki:Current_events" class="btn btn-lg btn-block btn-primary">Event-Kalender</a>
				<?php else: ?>
				<h6 class="card-subtitle mb-2 text-muted">Aktuell keine Veranstaltungen.</h6>
				<p class="card-text">
					<span class="font-weight-normal">
						Es stehen aktuell keine Veranstaltungen an.
					</span>
				</p>
				<?php endif ?>
			</div>
		</div>
		<?php endif ?>
	</div>
	<footer class="page-footer font-small text-center">
    	<div>
        Du bist Besucher #<?= $v ?>
        </div>
		<div>
		<a href="https://git.iwonder.name/iwonder/dorf.jetzt">Sieh dir den Code hier an</a>
		</div>
		<div>
		Melde Fehler bitte an <a href="mailto:help@dorf.jetzt">help@dorf.jetzt</a>
		</div>
        <div>
        Dies ist kein offizieller Auftritt des <a href="https://chaosdorf.de">Chaos Computer Club Düsseldorf / Chaosdorf e.V.</a>.
        </div>
	</footer>
    <?php
    // These are actually not needed, see https://getbootstrap.com/docs/4.0/getting-started/introduction/#js
	// <script src="assets/js/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
	// <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
	// <script src="assets/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
    ?>
</body>
</html>
<?php
/* Initialising values */
if(!$v) $v=0; 
$count_visit = true;
/* List of bots I found in various access logs */
$invalid_uas = array(
	"AhrefsBot",
	"Googlebot",
	"Yahoo",
	"Go-http-client/",
	"bingbot",
	"CheckMarkNetwork",
	"SemrushBot",
	"BingPreview",
	"facebookexternalhit",
	"hetrix.tools",
);
foreach ($invalid_uas as $ua){
	if(stripos($_SERVER['HTTP_USER_AGENT'], $ua) !== FALSE){
		$count_visit = false;
	}
}
if ($count_visit === TRUE){
	$v++;
	file_put_contents($VISITORS_FILE, $v);
}