phpaster 0.5

https://docs.nextcloud.com/server/22/admin_manual/groupware/calendar.html#trash-bin

https://help.nextcloud.com/t/how-to-delete-old-entries-of-calendar/122632/5
https://help.nextcloud.com/t/dav-report-not-supported/103328/6

curl -u user:password -X REPORT 'http://server-ip/remote.php/dav/files/user/' --data '<?xml version="1.0" encoding="utf-8"?>
<oc:filter-files xmlns:d="DAV:"
    xmlns:oc="http://owncloud.org/ns"
    xmlns:nc="http://nextcloud.org/ns"
    xmlns:ocs="http://open-collaboration-services.org/ns">
    <d:prop>
        <d:getcontentlength />
        <d:getcontenttype />
        <d:getetag />
        <d:getlastmodified />
        <d:lockdiscovery />
        <d:resourcetype />
        <oc:comments-unread />
        <oc:favorites />
        <oc:fileid />
        <oc:owner-display-name />
        <oc:permissions />
        <oc:share-types />
        <oc:size />
        <oc:tags />
    </d:prop>
    <oc:filter-rules>
        <oc:systemtag>2</oc:systemtag>
    </oc:filter-rules>
</oc:filter-files>'

from https://github.com/meonkeys/ow/blob/main/ow

debug(f'🔍 search for events in calendar {calendar} older than {minimumAge}...')

(startTime,endTime) = buildTimeRange(minimumAge)

_requestBody = f'''<?xml version="1.0"?>
<x1:calendar-query xmlns:x1="urn:ietf:params:xml:ns:caldav">
  <x0:prop xmlns:x0="DAV:">
    <x1:calendar-data/>
  </x0:prop>
  <x1:filter>
    <x1:comp-filter name="VCALENDAR">
      <x1:comp-filter name="VEVENT">
        <x1:time-range start="{startTime}" end="{endTime}"/>
      </x1:comp-filter>
    </x1:comp-filter>
  </x1:filter>
</x1:calendar-query>'''