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<!DOCTYPE html>
<html>
<head>
<title>Events</title>
<link rel="stylesheet" type="text/css" href="style.css"/>
</head>
<body>
<h1>HebrewTools Events List</h1>
Select <a href="#" onclick="return check_all_keywords(event,true);">all</a> / <a href="#" onclick="return check_all_keywords(event,false);">no</a> filters.
<div id="keyword-filters">
<?php
require_once ('db.php');
function htmlid ($str)
{
return preg_replace ('/\W/','-',$str);
}
function format_date_range ($start,$end)
{
$dates=date ('D j',$start);
if (date ('Y',$start) != date ('Y',$end))
$dates.=date (' M Y',$start).' to '.date ('j M',$end);
else if (date ('M',$start) != date ('M',$end))
$dates.=date (' M',$start).' to '.date ('j M',$end);
else if (date ('j',$start) != date ('j',$end))
$dates.='–'.date ('j M',$end);
else
$dates.=date (' M',$start);
if (date ('Y') != date ('Y',$end))
$dates.=date (' Y',$end);
return $dates;
}
$selected_keywords=isset ($_GET['keywords']) ? explode(',',$_GET['keywords']) : null;
$keywords=get_keywords();
foreach ($keywords as $record){
$keyword=$record['keyword'];
$checked=is_null ($selected_keywords) || in_array($keyword,$selected_keywords);
$checked=$checked ? 'checked="checked"' : '';
echo '<label for="kw-'.htmlid ($keyword).'">';
echo '<input type="checkbox" class="keyword" value="'.$keyword.'" id="kw-'.htmlid ($keyword).'" '.$checked.'/>';
echo ' '.$keyword.' ('.$record['count'].')</label><br/>';
}
$ical_url='https://'.$_SERVER['HTTP_HOST'].'/ical.php';
if (isset ($_GET['keywords']) && count ($_GET['keywords']) != count ($keywords))
$ical_url.='?keywords='.$_GET['keywords'];
?>
</div>
<br/>
<form action="list.php" method="get">
<input type="hidden" name="keywords" value=""/>
<input type="submit" value="Update filters"/>
</form>
<p>Export this calendar in <a href="<?=$ical_url?>">iCal</a> format.</p>
<p><a href="#" onclick="return toggle_expired_events(event);">Show/hide</a> past events.</p>
<table>
<tr>
<th>Date(s)</th>
<th>Location</th>
<th>Title</th>
<th>Keywords</th>
</tr>
<?php
$events=is_null ($selected_keywords) ? get_events() : get_events ($selected_keywords);
$last_month=null;
foreach ($events as $event){
$start_date=strtotime ($event['start_date']);
$end_date=strtotime ($event['end_date']);
$classes=[];
$month=date ('m',$start_date);
if ($month!=$last_month)
$classes[]='new-month';
$last_month=$month;
$time=time();
if ($end_date+3600*24<$time)
$classes[]='expired';
elseif ($start_date<=$time && $time<$end_date+3600*24)
$classes[]='current';
if (count ($classes))
echo '<tr class="'.implode (' ',$classes).'">';
else
echo '<tr>';
echo '<td>'.format_date_range ($start_date,$end_date).'</td>';
echo '<td>'.htmlspecialchars ($event['location']).'</td>';
echo '<td class="large"><span class="title-link" title="Click for details" onclick="expand_or_collapse(this,'.$event['id'].');">'.htmlspecialchars ($event['title']).'</span></td>';
foreach ($event['keywords'] as $i => $kw){
if (!is_null ($selected_keywords) && !in_array ($kw,$selected_keywords))
$event['keywords'][$i]='<span class="filtered-keyword">'.htmlspecialchars ($kw).'</span>';
else
$event['keywords'][$i]=htmlspecialchars ($kw);
}
echo '<td>'.implode (', ',$event['keywords']).'</td>';
echo '</tr>';
}
?>
</table>
<script type="text/javascript">
let checkboxes=Array.from (document.getElementsByClassName ('keyword'));
function update_keywords_field ()
{
var keywords=checkboxes.filter (cb => cb.checked).map (cb => cb.value);
var elem=document.getElementsByName ('keywords')[0];
elem.value=keywords.join (',');
}
function check_all_keywords (event,check)
{
checkboxes.map (cb => cb.checked=check);
update_keywords_field();
event.preventDefault();
return false;
}
function expand_or_collapse (elem,id)
{
if (elem.parentNode.childNodes.length > 1){
let p=elem.parentNode.childNodes[1];
p.style.display=p.style.display=='none' ? 'block' : 'none';
return;
}
var xhttp=new XMLHttpRequest();
xhttp.onreadystatechange=function(){
if (this.readyState!=4)
return;
if (this.status!=200){
window.alert ('Failed to fetch event information ('+this.status+')');
return;
}
let ev=JSON.parse (xhttp.responseText);
let p=document.createElement ('p');
p.classList.add ('description');
p.innerHTML=ev.description;
elem.parentNode.appendChild (p);
};
xhttp.open ('GET','event.php?id='+id,true);
xhttp.send();
}
var expired_events_are_shown=true;
function toggle_expired_events (event)
{
expired_events_are_shown=!expired_events_are_shown;
const rows=document.getElementsByClassName ('expired');
for (var i=0; i<rows.length; i++)
rows[i].style.display=expired_events_are_shown ? 'table-row' : 'none';
if (event)
event.preventDefault();
return false;
}
update_keywords_field();
checkboxes.map (cb => cb.onchange=update_keywords_field);
toggle_expired_events();
</script>
</body>
</html>
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