"""Type-safe enumerations for earnings transfer."""

from __future__ import annotations

from enum import StrEnum


class TransferType(StrEnum):
    """Transfer type identifiers."""

    TRANSFER = 'Transfer'
    RECLASS = 'Reclass'
    OVERRIDE = 'Override'
    CROSS_RECOUPMENT = 'CrossRecoupment'
    PASSBACK = 'Passback'


class RateType(StrEnum):
    """Rate type for earnings transfer calculations."""

    PERCENT = 'percent'
    FLAT_RATE = 'flat_rate'