mirror of
https://github.com/home-assistant/core
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317ed418dd
* Use singleton enum for "not set" sentinel https://www.python.org/dev/peps/pep-0484/#support-for-singleton-types-in-unions * Remove unused variable
63 lines
1.7 KiB
Python
63 lines
1.7 KiB
Python
"""Preference management for camera component."""
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from homeassistant.helpers.typing import UNDEFINED
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from .const import DOMAIN, PREF_PRELOAD_STREAM
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# mypy: allow-untyped-defs, no-check-untyped-defs
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STORAGE_KEY = DOMAIN
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STORAGE_VERSION = 1
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class CameraEntityPreferences:
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"""Handle preferences for camera entity."""
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def __init__(self, prefs):
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"""Initialize prefs."""
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self._prefs = prefs
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def as_dict(self):
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"""Return dictionary version."""
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return self._prefs
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@property
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def preload_stream(self):
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"""Return if stream is loaded on hass start."""
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return self._prefs.get(PREF_PRELOAD_STREAM, False)
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class CameraPreferences:
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"""Handle camera preferences."""
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def __init__(self, hass):
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"""Initialize camera prefs."""
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self._hass = hass
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self._store = hass.helpers.storage.Store(STORAGE_VERSION, STORAGE_KEY)
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self._prefs = None
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async def async_initialize(self):
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"""Finish initializing the preferences."""
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prefs = await self._store.async_load()
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if prefs is None:
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prefs = {}
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self._prefs = prefs
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async def async_update(
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self, entity_id, *, preload_stream=UNDEFINED, stream_options=UNDEFINED
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):
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"""Update camera preferences."""
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if not self._prefs.get(entity_id):
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self._prefs[entity_id] = {}
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for key, value in ((PREF_PRELOAD_STREAM, preload_stream),):
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if value is not UNDEFINED:
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self._prefs[entity_id][key] = value
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await self._store.async_save(self._prefs)
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def get(self, entity_id):
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"""Get preferences for an entity."""
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return CameraEntityPreferences(self._prefs.get(entity_id, {}))
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