core/homeassistant/components/garmin_connect/alarm_util.py

51 lines
1.5 KiB
Python

"""Utility method for converting Garmin Connect alarms to python datetime."""
from datetime import date, datetime, timedelta
import logging
_LOGGER = logging.getLogger(__name__)
DAY_TO_NUMBER = {
"Mo": 1,
"M": 1,
"Tu": 2,
"We": 3,
"W": 3,
"Th": 4,
"Fr": 5,
"F": 5,
"Sa": 6,
"Su": 7,
}
def calculate_next_active_alarms(alarms):
"""
Calculate garmin next active alarms from settings.
Alarms are sorted by time
"""
active_alarms = []
_LOGGER.debug(alarms)
for alarm_setting in alarms:
if alarm_setting["alarmMode"] != "ON":
continue
for day in alarm_setting["alarmDays"]:
alarm_time = alarm_setting["alarmTime"]
if day == "ONCE":
midnight = datetime.combine(date.today(), datetime.min.time())
alarm = midnight + timedelta(minutes=alarm_time)
if alarm < datetime.now():
alarm += timedelta(days=1)
else:
start_of_week = datetime.combine(
date.today() - timedelta(days=datetime.today().isoweekday() % 7),
datetime.min.time(),
)
days_to_add = DAY_TO_NUMBER[day] % 7
alarm = start_of_week + timedelta(minutes=alarm_time, days=days_to_add)
if alarm < datetime.now():
alarm += timedelta(days=7)
active_alarms.append(alarm.isoformat())
return sorted(active_alarms) if active_alarms else None