import datetime

import tzlocal
from dateutil import tz
from dateutil.parser import parse as date_parse


def to_dateTime(datetime: datetime.datetime):
    """converts a datetime into json format for rest api"""
    if not datetime.tzinfo:
        datetime = datetime.astimezone()
    zone = tzlocal.get_localzone().zone
    datetime = datetime.isoformat(timespec="seconds")
    return {"timeZone": zone, "dateTime": datetime}


def from_dateTime(dateTime):
    """converts to a datetime from json format returned by rest api"""
    timezone = tz.gettz(dateTime["timeZone"])
    datetime = date_parse(dateTime["dateTime"])
    datetime.replace(tzinfo=timezone)
    return datetime