"""Time utilities"""
import datetime
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
ALLOWED_KEYS = (
"days",
"seconds",
"microseconds",
"milliseconds",
"minutes",
"hours",
"weeks",
)
def timedelta_string_validator(value: str):
"""Validator for Django that checks if value can be parsed with `timedelta_from_string`"""
try:
timedelta_from_string(value)
except ValueError as exc:
raise ValidationError(
_("%(value)s is not in the correct format of 'hours=3;minutes=1'."),
params={"value": value},
) from exc
def timedelta_from_string(expr: str) -> datetime.timedelta:
"""Convert a string with the format of 'hours=1;minute=3;seconds=5' to a
`datetime.timedelta` Object with hours = 1, minutes = 3, seconds = 5"""
kwargs = {}
for duration_pair in expr.split(";"):
key, value = duration_pair.split("=")
if key.lower() not in ALLOWED_KEYS:
continue
kwargs[key.lower()] = float(value)
return datetime.timedelta(**kwargs)
def get_time_string(delta: datetime.timedelta = None) -> str:
"""Get Data formatted in SAML format"""
if delta is None:
delta = datetime.timedelta()
now = datetime.datetime.now()
final = now + delta
return final.strftime("%Y-%m-%dT%H:%M:%SZ")
