78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
"""Mixin class for handling harmony callback subscriptions."""
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import logging
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from typing import Any, Callable, NamedTuple, Optional
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from homeassistant.core import callback
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_LOGGER = logging.getLogger(__name__)
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NoParamCallback = Optional[Callable[[object], Any]]
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ActivityCallback = Optional[Callable[[object, tuple], Any]]
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class HarmonyCallback(NamedTuple):
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"""Callback type for Harmony Hub notifications."""
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connected: NoParamCallback
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disconnected: NoParamCallback
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config_updated: NoParamCallback
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activity_starting: ActivityCallback
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activity_started: ActivityCallback
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class HarmonySubscriberMixin:
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"""Base implementation for a subscriber."""
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def __init__(self, hass):
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"""Initialize an subscriber."""
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super().__init__()
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self._hass = hass
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self._subscriptions = []
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@callback
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def async_subscribe(self, update_callbacks: HarmonyCallback) -> Callable:
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"""Add a callback subscriber."""
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self._subscriptions.append(update_callbacks)
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def _unsubscribe():
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self.async_unsubscribe(update_callbacks)
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return _unsubscribe
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@callback
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def async_unsubscribe(self, update_callback: HarmonyCallback):
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"""Remove a callback subscriber."""
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self._subscriptions.remove(update_callback)
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def _config_updated(self, _=None) -> None:
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_LOGGER.debug("config_updated")
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self._call_callbacks("config_updated")
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def _connected(self, _=None) -> None:
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_LOGGER.debug("connected")
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self._available = True
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self._call_callbacks("connected")
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def _disconnected(self, _=None) -> None:
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_LOGGER.debug("disconnected")
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self._available = False
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self._call_callbacks("disconnected")
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def _activity_starting(self, activity_info: tuple) -> None:
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_LOGGER.debug("activity %s starting", activity_info)
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self._call_callbacks("activity_starting", activity_info)
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def _activity_started(self, activity_info: tuple) -> None:
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_LOGGER.debug("activity %s started", activity_info)
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self._call_callbacks("activity_started", activity_info)
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def _call_callbacks(self, callback_func_name: str, argument: tuple = None):
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for subscription in self._subscriptions:
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current_callback = getattr(subscription, callback_func_name)
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if current_callback:
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if argument:
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self._hass.async_run_job(current_callback, argument)
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else:
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self._hass.async_run_job(current_callback)
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