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6bb4e7d62c
Co-authored-by: Sid <27780930+autinerd@users.noreply.github.com> Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com> Co-authored-by: J. Nick Koston <nick@koston.org>
36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
"""Helper class to convert between Home Assistant and ESPHome enum values."""
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from typing import Generic, TypeVar, overload
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from aioesphomeapi import APIIntEnum
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_EnumT = TypeVar("_EnumT", bound=APIIntEnum)
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_ValT = TypeVar("_ValT")
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class EsphomeEnumMapper(Generic[_EnumT, _ValT]):
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"""Helper class to convert between hass and esphome enum values."""
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def __init__(self, mapping: dict[_EnumT, _ValT]) -> None:
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"""Construct a EsphomeEnumMapper."""
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# Add none mapping
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augmented_mapping: dict[_EnumT | None, _ValT | None] = mapping # type: ignore[assignment]
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augmented_mapping[None] = None
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self._mapping = augmented_mapping
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self._inverse: dict[_ValT, _EnumT] = {v: k for k, v in mapping.items()}
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@overload
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def from_esphome(self, value: _EnumT) -> _ValT: ...
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@overload
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def from_esphome(self, value: _EnumT | None) -> _ValT | None: ...
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def from_esphome(self, value: _EnumT | None) -> _ValT | None:
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"""Convert from an esphome int representation to a hass string."""
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return self._mapping[value]
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def from_hass(self, value: _ValT) -> _EnumT:
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"""Convert from a hass string to a esphome int representation."""
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return self._inverse[value]
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