iCalendar Binding triggering time offset

damihe · March 1, 2023, 11:01pm

Currently this behaviour is not implemented in the public code. But code already exists in preparation. Please test the pre-build linked there:

github.com/openhab/openhab-addons

[iCalendar] Introduce Trigger channel for event start/end

opened 05:46PM - 03 Nov 22 UTC

t2000

enhancement

As already mentioned briefly in this discussion: https://community.openhab.org/…t/icalendar-binding/85130/12 it would be nice to have a `trigger` channel which fires every time an given event starts. I looked at the documentation of this binding, but it offers `state` channels only. However, it has an option to specify specially encoded event descriptions in the calendar which are executed at the exact same time the event starts or stops. IMHO one could use this logic to offer `trigger` channels one that fires on the start of an event and one at the end. Use-Case for such a feature would be a scheduler that isn't as simple as a cronjob, but controlled via a calendar. One could possible use it for reminders that can be send via telegram bots, email, announcements through speakers, etc. @daMihe Do you think such a feature would be helpful? Since I would like to have it instead of writing a cron rule that checks every minute the contents of some calendar item, I could look into implementing it and create a PR. WDYT?

This is no PR as i currently don‘t have regular access to a machine that is able to build, test the addon and executing the ide. But a replacement is ordered. Until then, as much feedback as possible is nice, especially as i did not test the usecase in the wild up to now (in my synthetic test it worked). Please comment in the issue to keep everything together.