"""Accounting Period Model."""


class Period:
    """Accounting Period Model."""

    prefix_template = 'schematized_files/{period}_{account}_all_all_{interval}/'  # noqa

    def __init__(self, period_id, interval, account_type):
        """Accounting Period Model."""
        self.period_id = int(period_id)
        self._period_ids = [str(period_id)]
        self.interval = interval
        self.account_type = account_type
        if self.is_quarter:
            self._period_ids = [
                str(self.period_id - 2),
                str(self.period_id - 1),
                str(self.period_id)]

    @property
    def period_ids(self):
        """Get period ids as a comma-delimited string."""
        if self.is_quarter:
            return ','.join(self._period_ids)
        return str(self.period_id)

    @property
    def is_quarter(self):
        """Get boolean is_quarter."""
        return self.interval == 'quarter' and self.period_id % 3 == 0

    @property
    def prefix(self):
        """Get the formatted s3 prefix."""
        return self.prefix_template.format(
            period=self.period_ids,
            account=self.account_type,
            interval=self.interval)