Source code for ecstask.productavailability.utilities.date_util

from datetime import datetime
from dateutil.relativedelta import relativedelta


def is_more_than_one_year(new_mask_from, new_mask_until, _):

    now = datetime.now()
    today_datetime = datetime(now.year, now.month, now.day)

    from_time_difference = relativedelta(new_mask_from, today_datetime)
    from_difference_in_years = from_time_difference.years
    if from_difference_in_years >= 1:
        return True

    time_difference = relativedelta(new_mask_until, new_mask_from)
    difference_in_years = time_difference.years

    if difference_in_years >= 1:
        return True
    return False


def is_mask_date_overlapping(existing_mask_from, existing_mask_until, new_mask_from, new_mask_until):
    """
    This method is used for finding the overlapping masking dates
    :param existing_mask_from:
    :param existing_mask_until:
    :param new_mask_from:
    :param new_mask_until:
    :return:
    """
    ex_mask_from_date = existing_mask_from
    ex_mask_until_date = existing_mask_until
    new_mask_from_date = new_mask_from
    new_mask_until_date = new_mask_until

    if ex_mask_from_date <= new_mask_from_date and new_mask_until_date >= ex_mask_until_date:
        return True
    if ex_mask_from_date >= new_mask_from_date and new_mask_until_date <= ex_mask_until_date:
        return True
    return False