Use signals to update internal ics

com/api.py

@@ -1,14 +1,10 @@
-from datetime import timedelta
 from pathlib import Path
 
 from django.conf import settings
 from django.http import Http404
-from django.urls import reverse
-from django.utils import timezone
-from ics import Calendar, Event
 from ninja_extra import ControllerBase, api_controller, route
 
-from com.models import IcsCalendar, NewsDate
+from com.models import IcsCalendar
 from core.views.files import send_raw_file
 
 
@@ -33,23 +29,4 @@ class CalendarController(ControllerBase):
 
     @route.get("/internal.ics")
     def calendar_internal(self):
-        calendar = Calendar()
-        for news_date in NewsDate.objects.filter(
-            news__is_moderated=True,
-            end_date__gte=timezone.now()
-            - (timedelta(days=30) * 60),  # Roughly get the last 6 months
-        ).prefetch_related("news"):
-            event = Event(
-                name=news_date.news.title,
-                begin=news_date.start_date,
-                end=news_date.end_date,
-                url=reverse("com:news_detail", kwargs={"news_id": news_date.news.id}),
-            )
-            calendar.events.add(event)
-
-        # Create a file so we can offload the download to the reverse proxy if available
-        file = self.CACHE_FOLDER / "internal.ics"
-        self.CACHE_FOLDER.mkdir(parents=True, exist_ok=True)
-        with open(file, "wb") as f:
-            _ = f.write(calendar.serialize().encode("utf-8"))
-        return send_raw_file(file)
+        return send_raw_file(IcsCalendar.get_internal())