Manage Nextcloud CalDav calendars

caldav.py

import caldav


def ct(d):
    return d.strftime("%Y%m%dT%H%M00")

  
class Calendar:
    
    def __init__(self, caldav_url, username, password, calendar_name):
        self.client = caldav.DAVClient(url=caldav_url, username=username, password=password)
        my_principal = self.client.principal()
        self.calendar = my_principal.calendar(name=calendar_name)

    def create_event(self, dtstart, dtend, summary):
        return self.calendar.save_event(
            dtstart=dtstart,
            dtend=dtend,
            summary=summary
        )

    def update_event(self, url, dtstart, dtend, summary):
        obj = caldav.objects.Event(client=self.client, url=url, parent=self.calendar)
        obj.load()
        if summary:
            obj.vobject_instance.vevent.summary.value = summary
        if dtstart:
            obj.vobject_instance.vevent.dtstart.value = ct(dtstart)
        if dtend:
            obj.vobject_instance.vevent.dtend.value = ct(dtend)
        obj.save()

    def remove_event(self, url):
        obj = caldav.objects.Event(client=self.client, url=url, parent=self.calendar)
        obj.delete()