Bernard Siebens
515480ce51
New mobile:calendar_feed (/app/calendar/<token>.ics) -- a standard webcal-style subscription feed calendar apps can poll, so a family's schedule shows up in Apple/Google/Outlook Calendar alongside everything else. Token-authenticated rather than session-authenticated (calendar apps can't do interactive login); CalendarFeedToken is deliberately not club-scoped, since the same token works under whichever club subdomain the request is fetched from -- an account active in more than one club needs only the one link. Combined across every managed person (their name goes in the event title when there's more than one), every event they're invited to regardless of RSVP status, not capped to Calendar's own 2-week window -- a synced calendar app is exactly where someone wants the whole season visible. A cancelled event stays in the feed as STATUS:CANCELLED rather than disappearing, so it's removed properly on the subscriber's next refresh instead of just vanishing. New mobile:calendar_feed_settings (linked from Me) shows the webcal:// and https:// links plus a "reset my calendar link" action that immediately invalidates the old one. Uses the icalendar package for RFC 5545 generation rather than hand-rolling escaping/line-folding. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ECGMEwrc2k4D8VQuwjstj9
79 lines
3.3 KiB
Python
79 lines
3.3 KiB
Python
"""Builds the .ics feed mobile.views.CalendarFeedView serves -- see that
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view's own docstring for the shape (one combined feed per account, every
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managed person's events, regardless of RSVP status).
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"""
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import datetime
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from django.utils import timezone
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from django.utils.translation import gettext as _
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from icalendar import Calendar
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from icalendar import Event as ICalEvent
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from events.models import Attendance
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#: Non-game events don't always have an explicit `end` -- same assumed-duration
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#: read-time fallback events.services.calendar._local_span()/events.models.
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#: ASSUMED_EVENT_DURATION already use for display purposes.
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_ASSUMED_DURATION = datetime.timedelta(hours=2)
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def _utc(value):
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return timezone.localtime(value).astimezone(datetime.UTC)
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def build_feed(club, people) -> bytes:
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"""A combined VCALENDAR of every one of ``people``'s Attendance rows in
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``club``, regardless of RSVP status -- this mirrors what the in-app
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Calendar screen shows, minus its 2-week window: a synced calendar app is
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exactly where someone wants the *whole* season visible, not a
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deliberately-short mobile agenda. Still-in-progress events are kept
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(filtered on effective end, not start) so one doesn't vanish from a
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subscriber's calendar partway through. A cancelled event stays in the
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feed with STATUS:CANCELLED rather than simply disappearing from it, so a
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calendar app that already synced it removes it properly on next refresh.
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"""
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calendar = Calendar()
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calendar.add("prodid", "-//RosterChief//Member calendar feed//EN")
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calendar.add("version", "2.0")
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calendar.add("calscale", "GREGORIAN")
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calendar.add("method", "PUBLISH")
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calendar.add("x-wr-calname", _("%(club)s — RosterChief") % {"club": club.name})
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now = timezone.now()
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show_member_name = len(people) > 1
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dtstamp = _utc(now)
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attendances = (
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Attendance.objects.filter(member__in=people, event__club=club, event__start__gte=now - datetime.timedelta(days=1))
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.select_related("event", "event__location", "member")
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.order_by("event__start")
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)
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for attendance in attendances:
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event = attendance.event
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end = event.end or (event.start + _ASSUMED_DURATION)
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if end < now:
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continue
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component = ICalEvent()
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component.add("uid", f"attendance-{attendance.pk}@rosterchief.app")
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component.add("dtstamp", dtstamp)
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component.add("dtstart", _utc(event.start))
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component.add("dtend", _utc(end))
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component.add("summary", _("%(title)s — %(name)s") % {"title": event.title, "name": attendance.member.first_name} if show_member_name else event.title)
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component.add("status", "CANCELLED" if event.cancelled else "CONFIRMED")
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if event.location:
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address = ", ".join(part for part in [event.location.name, event.location.address, f"{event.location.zip_code} {event.location.city}".strip()] if part)
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component.add("location", address)
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description_lines = [_("RSVP: %(status)s") % {"status": attendance.get_status_display()}]
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if event.gathering:
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description_lines.append(_("Meet: %(time)s") % {"time": timezone.localtime(event.gathering).strftime("%H:%M")})
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component.add("description", "\n".join(description_lines))
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calendar.add_component(component)
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return calendar.to_ical()
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