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reservations: Sync external Google Calendar events into database

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This commit is contained in:
Adam Goldsmith 2024-08-06 13:48:27 -04:00
parent e4280361d1
commit 927e2f4b90
3 changed files with 90 additions and 28 deletions
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31
reservations/migrations/0002_externalreservation.py Normal file
View File

@ -0,0 +1,31 @@
# Generated by Django 5.0.7 on 2024-08-06 17:17
import django.db.models.deletion
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
("reservations", "0001_initial"),
]
operations = [
migrations.CreateModel(
name="ExternalReservation",
fields=[
(
"reservation_ptr",
models.OneToOneField(
auto_created=True,
on_delete=django.db.models.deletion.CASCADE,
parent_link=True,
primary_key=True,
serialize=False,
to="reservations.reservation",
),
),
("title", models.CharField(max_length=1024)),
],
bases=("reservations.reservation",),
),
]

15
reservations/models.py
View File

@ -132,3 +132,18 @@ class UserReservation(Reservation):
return super().make_google_calendar_event() | {
"summary": str(self.user),
}
class ExternalReservation(Reservation):
"""Reservations created by something else in Google Calendar"""
title = models.CharField(max_length=1024)
def __str__(self) -> str:
return f'External "{self.title}" | {super().__str__()}'
def make_google_calendar_event(self):
"""This should never be called, as these are reservations from Google Calendar and shouldn't be synced back"""
raise AttributeError(
"External Reservations should not be pushed back to Google Calendar"
)

72
reservations/tasks/sync_google_calendar.py
View File

@ -10,7 +10,7 @@ from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from cmsmanage.django_q2_helper import q_task_group
from reservations.models import Reservation, Resource
from reservations.models import ExternalReservation, Reservation, Resource
logger = logging.getLogger(__name__)
@ -110,12 +110,21 @@ def sync_resource_from_google_calendar(
sendUpdates="none",
).execute()
else:
# TODO: handle external events (either Bookly or manually created)
# NOTE: this will also need to check for deleted events
logger.debug(
"Event in Google Calendar not originated by CMSManage: skipping for now | %s",
"Event in Google Calendar not originated by CMSManage: adding/updating as external reservation | %s",
event["id"],
)
# TODO: this might cause issues if something external
# creates events with matching IDs in different calendars
reservation, created = ExternalReservation.objects.update_or_create(
google_calendar_event_id=event["id"],
defaults={
"title": event["summary"],
"start": parse_google_calendar_datetime(event["start"]),
"end": parse_google_calendar_datetime(event["end"]),
},
)
reservation.resources.add(resource)
return {event["id"] for event in events}
@ -135,32 +144,39 @@ def sync_resource_from_database(
# reservation has an event id, so check if we already handled it earlier
elif reservation.google_calendar_event_id not in existing_event_ids:
# this event was in Google Calendar at some point (possibly for a different
# resource/calendar), but did not appear in list(). Try to update it, then
# fall back to insert
logger.info(
"Reservation with event id not in Google Calendar: trying update | %s",
reservation.google_calendar_event_id,
)
try:
event = (
service.events()
.get(
calendarId=resource.google_calendar,
eventId=reservation.google_calendar_event_id,
)
.execute()
if isinstance(reservation, ExternalReservation):
logger.info(
"External event in database did not exist in future of Google Calendar: deleting locally | %s",
reservation.google_calendar_event_id,
)
update_calendar_event(service, resource, event, reservation)
except HttpError as error:
if error.status_code == HTTPStatus.NOT_FOUND:
logger.info(
"Event in database not in Google Calendar: inserting | %s",
reservation.google_calendar_event_id,
reservation.delete()
else:
# this event was in Google Calendar at some point (possibly for a different
# resource/calendar), but did not appear in list(). Try to update it, then
# fall back to insert
logger.info(
"Reservation with event id not in Google Calendar: trying update | %s",
reservation.google_calendar_event_id,
)
try:
event = (
service.events()
.get(
calendarId=resource.google_calendar,
eventId=reservation.google_calendar_event_id,
)
.execute()
)
insert_calendar_event(service, resource, reservation)
else:
raise
update_calendar_event(service, resource, event, reservation)
except HttpError as error:
if error.status_code == HTTPStatus.NOT_FOUND:
logger.info(
"Event in database not in Google Calendar: inserting | %s",
reservation.google_calendar_event_id,
)
insert_calendar_event(service, resource, reservation)
else:
raise
def sync_resource(service, resource: Resource, now: datetime):