<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<meta http-equiv="Content-Security-Policy" content="frame-src '*'">
  <title>
    Hackerspace.Zone calendar viewer
  </title>
  <style>
    html, body {
      margin: 0;
      padding: 0;
      font-family: Arial, Helvetica Neue, Helvetica, sans-serif;
      font-size: 14px;
    }
    #calendar {
      max-width: 800px;
      margin: 00px auto;
    }
  </style>
<link href='https://cdn.jsdelivr.net/npm/fullcalendar@5.11.0/main.min.css' rel='stylesheet' />
<script src='https://cdn.jsdelivr.net/npm/fullcalendar@5.11.0/main.min.js'></script>
<script src='https://github.com/mozilla-comm/ical.js/releases/download/v1.4.0/ical.js'></script>
<script src='https://cdn.jsdelivr.net/npm/@fullcalendar/icalendar@5.11.0/main.global.min.js'></script>
<script>
 // 'https://events.hackerspace.zone/@events/feed/ics',
  const param = new URL(location).searchParams;
  const ics = param.get("ics") || 'https://events.hackerspace.zone/@events/feed/ics';
  const view = param.get("view") || "dayGridMonth";

  document.addEventListener('DOMContentLoaded', function() {
    var calendarEl = document.getElementById('calendar');
    var calendar = new FullCalendar.Calendar(calendarEl, {
      initialView: view,
      headerToolbar: {
        left: 'prev,next today',
        center: 'title',
        right: 'dayGridMonth,timeGridWeek,timeGridDay'
      },
      events: {
        url: ics,
        format: 'ics'
      }
    });
    calendar.render();
  });
</script>

</head>
<body>
  <div id='calendar'></div>
</html>