def validate_dates()

in src/validators/swagger_request_models.py [0:0]

• 38 lines of code
• 12 McCabe index (conditional complexity)

    def validate_dates(self) -> Self:
        """
        What it does:
        - converts start_iso and end_iso to utc tz-aware datetime object
        - validates that start_iso < end_iso, end_iso <= now
        - sets default values in case they are not provided
        :param values:
        :return:
        """
        now = utc_datetime()
        max_range = self.max_range()
        start = self.to_datetime(self.start_iso)
        end = self.to_datetime(self.end_iso)
        if start:
            start = start.astimezone(timezone.utc)
            if start > now:
                raise ValueError('value of \'from\' must be less '
                                 'than current date')
        if end:
            end = end.astimezone(timezone.utc)
            if end > now:
                raise ValueError('value of \'to\' must be less '
                                 'than current date')
        if start and end:
            pass
        elif start:
            end = min(start + max_range, now)
        elif end:
            start = end - max_range
        else:  # both not provided
            if self.skip_validation_if_no_input:
                self.start_iso = None
                self.end_iso = None
                return self
            end = now
            start = end - max_range
        if start >= end:
            raise ValueError('value of \'to\' must '
                             'be bigger than \'from\' date')

        if (end - start) > max_range:
            raise ValueError(
                f'Time range between \'from\' and \'to\' must '
                f'not overflow {max_range}')
        self.start_iso = start
        self.end_iso = end
        return self