core/homeassistant/components/media_player/significant_change.py

72 lines
1.9 KiB
Python

"""Helper to test significant Media Player state changes."""
from __future__ import annotations
from typing import Any
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.significant_change import (
check_absolute_change,
check_valid_float,
)
from . import (
ATTR_ENTITY_PICTURE_LOCAL,
ATTR_MEDIA_POSITION,
ATTR_MEDIA_POSITION_UPDATED_AT,
ATTR_MEDIA_VOLUME_LEVEL,
ATTR_TO_PROPERTY,
)
INSIGNIFICANT_ATTRIBUTES: set[str] = {
ATTR_MEDIA_POSITION,
ATTR_MEDIA_POSITION_UPDATED_AT,
}
SIGNIFICANT_ATTRIBUTES: set[str] = {
ATTR_ENTITY_PICTURE_LOCAL,
*ATTR_TO_PROPERTY,
} - INSIGNIFICANT_ATTRIBUTES
@callback
def async_check_significant_change(
hass: HomeAssistant,
old_state: str,
old_attrs: dict,
new_state: str,
new_attrs: dict,
**kwargs: Any,
) -> bool | None:
"""Test if state significantly changed."""
if old_state != new_state:
return True
old_attrs_s = set(
{k: v for k, v in old_attrs.items() if k in SIGNIFICANT_ATTRIBUTES}.items()
)
new_attrs_s = set(
{k: v for k, v in new_attrs.items() if k in SIGNIFICANT_ATTRIBUTES}.items()
)
changed_attrs: set[str] = {item[0] for item in old_attrs_s ^ new_attrs_s}
for attr_name in changed_attrs:
if attr_name != ATTR_MEDIA_VOLUME_LEVEL:
return True
old_attr_value = old_attrs.get(attr_name)
new_attr_value = new_attrs.get(attr_name)
if new_attr_value is None or not check_valid_float(new_attr_value):
# New attribute value is invalid, ignore it
continue
if old_attr_value is None or not check_valid_float(old_attr_value):
# Old attribute value was invalid, we should report again
return True
if check_absolute_change(old_attr_value, new_attr_value, 0.1):
return True
# no significant attribute change detected
return False