Files
2026-06-16 10:33:21 -04:00

363 lines
15 KiB
Python

""" Implements a central Power Feature Manager for Versatile Thermostat """
import logging
from vtherm_api.log_collector import get_vtherm_logger
from typing import Any
from functools import cmp_to_key
from datetime import timedelta
from homeassistant.const import STATE_OFF
from homeassistant.core import HomeAssistant, Event, callback
from homeassistant.helpers.event import (
async_track_state_change_event,
EventStateChangedData,
async_call_later,
)
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.components.climate import (
ClimateEntity,
DOMAIN as CLIMATE_DOMAIN,
)
from .const import * # pylint: disable=wildcard-import, unused-wildcard-import
from .commons import write_event_log
from .commons_type import ConfigData
from .base_manager import BaseFeatureManager
# circular dependency
# from .base_thermostat import BaseThermostat
MIN_DTEMP_SECS = 20
_LOGGER = get_vtherm_logger(__name__)
class FeatureCentralPowerManager(BaseFeatureManager):
"""A central Power feature manager"""
def __init__(self, hass: HomeAssistant, vtherm_api: Any):
"""Init of a featureManager"""
super().__init__(None, hass, "centralPowerManager")
self._hass: HomeAssistant = hass
self._vtherm_api = vtherm_api # no type due to circular reference
self._is_configured: bool = False
self._power_sensor_entity_id: str | None = None
self._max_power_sensor_entity_id: str | None = None
self._current_power: float | None = None
self._current_max_power: float | None = None
self._power_temp: float | None = None
self._cancel_calculate_shedding_call = None
self._started_vtherm_total_power_by_id: dict[str, float] = {}
# Not used now
self._last_shedding_date = None
self._state = False
def post_init(self, entry_infos: ConfigData):
"""Gets the configuration parameters"""
central_config = self._vtherm_api.find_central_configuration()
if not central_config:
_LOGGER.info("%s - No central configuration is found. Power management will be deactivated", self)
return
self._power_sensor_entity_id = entry_infos.get(CONF_POWER_SENSOR)
self._max_power_sensor_entity_id = entry_infos.get(CONF_MAX_POWER_SENSOR)
self._power_temp = entry_infos.get(CONF_PRESET_POWER)
self._is_configured = False
self._current_power = None
self._current_max_power = None
if (
entry_infos.get(CONF_USE_POWER_FEATURE, False)
and self._max_power_sensor_entity_id
and self._power_sensor_entity_id
and self._power_temp
):
self._is_configured = True
self._started_vtherm_total_power_by_id = {}
else:
_LOGGER.info("%s - Power management is not fully configured and will be deactivated", self)
async def start_listening(self):
"""Start listening the power sensor"""
if not self._is_configured:
return
self.stop_listening()
self.add_listener(
async_track_state_change_event(
self.hass,
[self._power_sensor_entity_id],
self._power_sensor_changed,
)
)
self.add_listener(
async_track_state_change_event(
self.hass,
[self._max_power_sensor_entity_id],
self._max_power_sensor_changed,
)
)
@callback
async def _power_sensor_changed(self, event: Event[EventStateChangedData]):
"""Handle power changes."""
write_event_log(_LOGGER, self, f"Receive power sensor state {event.data.get('new_state').state if event.data.get('new_state') else None}")
self._started_vtherm_total_power_by_id = {}
await self.refresh_state()
@callback
async def _max_power_sensor_changed(self, event: Event[EventStateChangedData]):
"""Handle power max changes."""
write_event_log(_LOGGER, self, f"Receive max power sensor state {event.data.get('new_state').state if event.data.get('new_state') else None}")
await self.refresh_state()
@overrides
async def refresh_state(self) -> bool:
"""Tries to get the last state from sensor
Returns True if a change has been made"""
async def _calculate_shedding_internal(_):
_LOGGER.debug("%s - Do the shedding calculation", self)
await self.calculate_shedding()
if self._cancel_calculate_shedding_call:
self._cancel_calculate_shedding_call()
self._cancel_calculate_shedding_call = None
if not self._is_configured:
return False
# Retrieve current power
new_power = get_safe_float(self._hass, self._power_sensor_entity_id)
power_changed = new_power is not None and self._current_power != new_power
if power_changed:
self._current_power = new_power
_LOGGER.debug("%s - New current power has been retrieved: %.3f", self, self._current_power)
# Retrieve max power
new_max_power = get_safe_float(self._hass, self._max_power_sensor_entity_id)
max_power_changed = new_max_power is not None and self._current_max_power != new_max_power
if max_power_changed:
self._current_max_power = new_max_power
_LOGGER.debug("%s - New current max power has been retrieved: %.3f", self, self._current_max_power)
# Schedule shedding calculation if there's any change
if power_changed or max_power_changed:
if not self._cancel_calculate_shedding_call:
self._cancel_calculate_shedding_call = async_call_later(self.hass, timedelta(seconds=MIN_DTEMP_SECS), _calculate_shedding_internal)
return True
return False
# For testing purpose only, do an immediate shedding calculation
async def _do_immediate_shedding(self):
"""Do an immmediate shedding calculation if a timer was programmed.
Else, do nothing"""
if self._cancel_calculate_shedding_call:
self._cancel_calculate_shedding_call()
self._cancel_calculate_shedding_call = None
await self.calculate_shedding()
async def calculate_shedding(self):
"""Do the shedding calculation and set/unset VTherm into overpowering state"""
if not self.is_configured or self.current_max_power is None or self.current_power is None:
return
changed_vtherm = []
_LOGGER.debug("%s - -------- Start of calculate_shedding", self)
# Find all VTherms
available_power = self.current_max_power - self.current_power
vtherms_sorted = self.find_all_vtherm_with_power_management_sorted_by_dtemp()
# shedding only
if available_power < 0:
_LOGGER.debug(
"%s - The available power is is < 0 (%s). Set overpowering only for list: %s",
self,
available_power,
vtherms_sorted,
)
# we will set overpowering for the nearest target temp first
total_power_gain = 0
for vtherm in vtherms_sorted:
if vtherm.is_device_active and not vtherm.power_manager.is_overpowering_detected:
device_power = vtherm.power_manager.device_power
total_power_gain += device_power
_LOGGER.info("vtherm %s should be in overpowering state (device_power=%.2f)", vtherm.name, device_power)
await vtherm.power_manager.set_overpowering(True, device_power)
changed_vtherm.append(vtherm)
_LOGGER.debug("%s - after vtherm %s total_power_gain=%s, available_power=%s", self, vtherm.name, total_power_gain, available_power)
if total_power_gain >= -available_power:
_LOGGER.debug("%s - We have found enough vtherm to set to overpowering", self)
break
# unshedding only
else:
vtherms_sorted.reverse()
_LOGGER.debug("%s - The available power is is > 0 (%s). Do a complete shedding/un-shedding calculation for list: %s", self, available_power, vtherms_sorted)
total_power_added = 0
for vtherm in vtherms_sorted:
# We want to do always unshedding in order to initialize the state
# so we cannot use is_overpowering_detected which test also UNKNOWN and UNAVAILABLE
if vtherm.power_manager.overpowering_state == STATE_OFF:
continue
power_consumption_max = device_power = vtherm.power_manager.device_power
# calculate the power_consumption_max
if vtherm.on_percent is not None:
power_consumption_max = max(
device_power / vtherm.nb_underlying_entities,
device_power * vtherm.on_percent,
)
_LOGGER.debug(
"%s - vtherm %s power_consumption_max is %s (device_power=%s, overclimate=%s)", self, vtherm.name, power_consumption_max, device_power, vtherm.is_over_climate
)
# or not ... is for initializing the overpowering state if not already done
if total_power_added + power_consumption_max < available_power or not vtherm.power_manager.is_overpowering_detected:
# we count the unshedding only if the VTherm was in shedding
if vtherm.power_manager.is_overpowering_detected:
_LOGGER.info("%s - vtherm %s should not be in overpowering state (power_consumption_max=%.2f)", self, vtherm.name, power_consumption_max)
total_power_added += power_consumption_max
await vtherm.power_manager.set_overpowering(False)
changed_vtherm.append(vtherm)
if total_power_added >= available_power:
_LOGGER.debug("%s - We have found enough vtherm to set to non-overpowering", self)
break
_LOGGER.debug("%s - after vtherm %s total_power_added=%s, available_power=%s", self, vtherm.name, total_power_added, available_power)
# We have set the evenual new state, fr
for vtherm in changed_vtherm:
vtherm.requested_state.force_changed()
await vtherm.update_states(force=True)
self._last_shedding_date = self._vtherm_api.now
# calculate a state as true if one of the VTherm is in shedding
self._state = any(vtherm.power_manager.is_overpowering_detected for vtherm in vtherms_sorted)
_LOGGER.debug("%s - -------- End of calculate_shedding", self)
def get_climate_components_entities(self) -> list:
"""Get all VTherms entitites"""
vtherms = []
component: EntityComponent[ClimateEntity] = self._hass.data.get(
CLIMATE_DOMAIN, None
)
if component:
for entity in list(component.entities):
# A little hack to test if the climate is a VTherm. Cannot use isinstance
# due to circular dependency of BaseThermostat
if (
entity.device_info
and entity.device_info.get("model", None) == DOMAIN
):
vtherms.append(entity)
return vtherms
def find_all_vtherm_with_power_management_sorted_by_dtemp(
self,
) -> list:
"""Returns all the VTherms with power management activated"""
entities = self.get_climate_components_entities()
vtherms = [
vtherm
for vtherm in entities
if vtherm.power_manager.is_configured and vtherm.is_on
]
# sort the result with the min temp difference first. A and B should be BaseThermostat class
def cmp_temps(a, b) -> int:
diff_a = float("inf")
diff_b = float("inf")
a_target = a.target_temperature if not a.power_manager.is_overpowering_detected else a.requested_state.target_temperature
b_target = b.target_temperature if not b.power_manager.is_overpowering_detected else b.requested_state.target_temperature
if a.current_temperature is not None and a_target is not None:
diff_a = a_target - a.current_temperature
if b.current_temperature is not None and b_target is not None:
diff_b = b_target - b.current_temperature
if diff_a == diff_b:
return 0
return 1 if diff_a > diff_b else -1
vtherms.sort(key=cmp_to_key(cmp_temps))
return vtherms
def get_started_vtherm_power(self, reservation_key: str) -> float:
"""Return the reserved started power for a given underlying key."""
return self._started_vtherm_total_power_by_id.get(reservation_key, 0.0)
def set_started_vtherm_power(self, reservation_key: str, started_power: float):
"""Set the temporary reserved power for a given underlying key.
This reservation is used between two power sensor measurements to avoid
allowing several underlyings to start simultaneously based on the same
stale sensor reading.
"""
if started_power > 0:
self._started_vtherm_total_power_by_id[reservation_key] = started_power
else:
self._started_vtherm_total_power_by_id.pop(reservation_key, None)
_LOGGER.debug(
"%s - started_vtherm_total_power is now %s (%s)",
self,
self.started_vtherm_total_power,
self._started_vtherm_total_power_by_id,
)
@property
def is_configured(self) -> bool:
"""True if the FeatureManager is fully configured"""
return self._is_configured
@property
def current_power(self) -> float | None:
"""Return the current power from sensor"""
return self._current_power
@property
def current_max_power(self) -> float | None:
"""Return the current power from sensor"""
return self._current_max_power
@property
def power_temperature(self) -> float | None:
"""Return the power temperature"""
return self._power_temp
@property
def power_sensor_entity_id(self) -> float | None:
"""Return the power sensor entity id"""
return self._power_sensor_entity_id
@property
def max_power_sensor_entity_id(self) -> float | None:
"""Return the max power sensor entity id"""
return self._max_power_sensor_entity_id
@property
def started_vtherm_total_power(self) -> float | None:
"""Return the started_vtherm_total_power"""
return sum(self._started_vtherm_total_power_by_id.values())
@property
def is_detected(self) -> bool:
"""True if the central power management is detected"""
return self._state
def __str__(self):
return "CentralPowerManager"