Move IcsCalendar to it's own file

com/models.py

@@ -22,11 +22,7 @@
 #
 #
 
-from datetime import datetime, timedelta
-from pathlib import Path
-from typing import final
 
-import urllib3
 from django.conf import settings
 from django.core.exceptions import ValidationError
 from django.core.mail import EmailMultiAlternatives
@@ -37,75 +33,11 @@ from django.templatetags.static import static
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
-from ics import Calendar, Event
 
 from club.models import Club
 from core.models import Notification, Preferences, User
 
 
-@final
-class IcsCalendar:
-    _CACHE_FOLDER: Path = settings.MEDIA_ROOT / "com" / "calendars"
-    _EXTERNAL_CALENDAR = _CACHE_FOLDER / "external.ics"
-    _INTERNAL_CALENDAR = _CACHE_FOLDER / "internal.ics"
-
-    @classmethod
-    def get_external(cls, expiration: timedelta = timedelta(hours=1)) -> Path | None:
-        if (
-            cls._EXTERNAL_CALENDAR.exists()
-            and timezone.make_aware(
-                datetime.fromtimestamp(cls._EXTERNAL_CALENDAR.stat().st_mtime)
-            )
-            + expiration
-            > timezone.now()
-        ):
-            return cls._EXTERNAL_CALENDAR
-        return cls.make_external()
-
-    @classmethod
-    def make_external(cls) -> Path | None:
-        calendar = urllib3.request(
-            "GET",
-            "https://calendar.google.com/calendar/ical/ae.utbm%40gmail.com/public/basic.ics",
-        )
-        if calendar.status != 200:
-            return None
-
-        cls._CACHE_FOLDER.mkdir(parents=True, exist_ok=True)
-        with open(cls._EXTERNAL_CALENDAR, "wb") as f:
-            _ = f.write(calendar.data)
-        return cls._EXTERNAL_CALENDAR
-
-    @classmethod
-    def get_internal(cls) -> Path:
-        if not cls._INTERNAL_CALENDAR.exists():
-            return cls.make_internal()
-        return cls._INTERNAL_CALENDAR
-
-    @classmethod
-    def make_internal(cls) -> Path:
-        # Updated through a post_save signal on News in com.signals
-        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
-        cls._CACHE_FOLDER.mkdir(parents=True, exist_ok=True)
-        with open(cls._INTERNAL_CALENDAR, "wb") as f:
-            _ = f.write(calendar.serialize().encode("utf-8"))
-        return cls._INTERNAL_CALENDAR
-
-
 class Sith(models.Model):
     """A one instance class storing all the modifiable infos."""