mirror of
https://github.com/home-assistant/core
synced 2024-08-02 23:40:32 +02:00
41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
"""Helpers for WLED."""
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from __future__ import annotations
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from collections.abc import Callable, Coroutine
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from typing import Any, TypeVar
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from typing_extensions import Concatenate, ParamSpec
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from wled import WLEDConnectionError, WLEDError
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from homeassistant.exceptions import HomeAssistantError
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from .models import WLEDEntity
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_WLEDEntityT = TypeVar("_WLEDEntityT", bound=WLEDEntity)
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_P = ParamSpec("_P")
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def wled_exception_handler(
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func: Callable[Concatenate[_WLEDEntityT, _P], Coroutine[Any, Any, Any]]
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) -> Callable[Concatenate[_WLEDEntityT, _P], Coroutine[Any, Any, None]]:
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"""Decorate WLED calls to handle WLED exceptions.
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A decorator that wraps the passed in function, catches WLED errors,
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and handles the availability of the device in the data coordinator.
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"""
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async def handler(self: _WLEDEntityT, *args: _P.args, **kwargs: _P.kwargs) -> None:
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try:
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await func(self, *args, **kwargs)
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self.coordinator.async_update_listeners()
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except WLEDConnectionError as error:
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self.coordinator.last_update_success = False
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self.coordinator.async_update_listeners()
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raise HomeAssistantError("Error communicating with WLED API") from error
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except WLEDError as error:
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raise HomeAssistantError("Invalid response from WLED API") from error
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return handler
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