Added ics_calender custom component.

custom_components/ics_calendar/utility.py

@@ -0,0 +1,37 @@
+"""Utility methods."""
+from datetime import date, datetime
+
+
+def make_datetime(val):
+    """Ensure val is a datetime, not a date."""
+    if isinstance(val, date) and not isinstance(val, datetime):
+        return datetime.combine(val, datetime.min.time()).astimezone()
+    return val
+
+
+def compare_event_dates(  # pylint: disable=R0913
+    now, end2, start2, all_day2, end, start, all_day
+) -> bool:
+    """Determine if end2 and start2 are newer than end and start."""
+    # Make sure we only compare datetime values, not dates with datetimes.
+    # Set each date object to a datetime at midnight.
+    end = make_datetime(end)
+    end2 = make_datetime(end2)
+    start = make_datetime(start)
+    start2 = make_datetime(start2)
+
+    if all_day2 == all_day:
+        if end2 == end:
+            return start2 > start
+        return end2 > end and start2 >= start
+
+    if now.tzinfo is None:
+        now = now.astimezone()
+
+    event2_current = start2 <= now <= end2
+    event_current = start <= now <= end
+
+    if event_current and event2_current:
+        return all_day
+
+    return start2 >= start or end2 >= end