from datetime import datetime

from marshmallow import ValidationError


def validate_index(index: int) -> None:
    if len(str(index)) > 6:
        raise ValidationError("Length of index is too long!")
    elif len(str(index)) < 6:
        raise ValidationError("Length of index is too short!")


def validate_datetime_greater_than_now(date: datetime) -> None:
    if date.timestamp() < datetime.utcnow().timestamp():
        raise ValidationError("Date must be greater than NOW!")