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mirror of https://github.com/home-assistant/core synced 2024-09-03 08:14:07 +02:00
ha-core/homeassistant/components/nest/climate.py
2019-12-09 12:08:51 +01:00

353 lines
11 KiB
Python

"""Support for Nest thermostats."""
import logging
from nest.nest import APIError
import voluptuous as vol
from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateDevice
from homeassistant.components.climate.const import (
ATTR_TARGET_TEMP_HIGH,
ATTR_TARGET_TEMP_LOW,
CURRENT_HVAC_COOL,
CURRENT_HVAC_HEAT,
CURRENT_HVAC_IDLE,
FAN_AUTO,
FAN_ON,
HVAC_MODE_AUTO,
HVAC_MODE_COOL,
HVAC_MODE_HEAT,
HVAC_MODE_OFF,
PRESET_AWAY,
PRESET_ECO,
PRESET_NONE,
SUPPORT_FAN_MODE,
SUPPORT_PRESET_MODE,
SUPPORT_TARGET_TEMPERATURE,
SUPPORT_TARGET_TEMPERATURE_RANGE,
)
from homeassistant.const import (
ATTR_TEMPERATURE,
CONF_SCAN_INTERVAL,
TEMP_CELSIUS,
TEMP_FAHRENHEIT,
)
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from . import DATA_NEST, DOMAIN as NEST_DOMAIN, SIGNAL_NEST_UPDATE
_LOGGER = logging.getLogger(__name__)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{vol.Optional(CONF_SCAN_INTERVAL): vol.All(vol.Coerce(int), vol.Range(min=1))}
)
NEST_MODE_HEAT_COOL = "heat-cool"
NEST_MODE_ECO = "eco"
NEST_MODE_HEAT = "heat"
NEST_MODE_COOL = "cool"
NEST_MODE_OFF = "off"
MODE_HASS_TO_NEST = {
HVAC_MODE_AUTO: NEST_MODE_HEAT_COOL,
HVAC_MODE_HEAT: NEST_MODE_HEAT,
HVAC_MODE_COOL: NEST_MODE_COOL,
HVAC_MODE_OFF: NEST_MODE_OFF,
}
MODE_NEST_TO_HASS = {v: k for k, v in MODE_HASS_TO_NEST.items()}
ACTION_NEST_TO_HASS = {
"off": CURRENT_HVAC_IDLE,
"heating": CURRENT_HVAC_HEAT,
"cooling": CURRENT_HVAC_COOL,
}
PRESET_AWAY_AND_ECO = "Away and Eco"
PRESET_MODES = [PRESET_NONE, PRESET_AWAY, PRESET_ECO, PRESET_AWAY_AND_ECO]
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Nest thermostat.
No longer in use.
"""
async def async_setup_entry(hass, entry, async_add_entities):
"""Set up the Nest climate device based on a config entry."""
temp_unit = hass.config.units.temperature_unit
thermostats = await hass.async_add_job(hass.data[DATA_NEST].thermostats)
all_devices = [
NestThermostat(structure, device, temp_unit)
for structure, device in thermostats
]
async_add_entities(all_devices, True)
class NestThermostat(ClimateDevice):
"""Representation of a Nest thermostat."""
def __init__(self, structure, device, temp_unit):
"""Initialize the thermostat."""
self._unit = temp_unit
self.structure = structure
self.device = device
self._fan_modes = [FAN_ON, FAN_AUTO]
# Set the default supported features
self._support_flags = SUPPORT_TARGET_TEMPERATURE | SUPPORT_PRESET_MODE
# Not all nest devices support cooling and heating remove unused
self._operation_list = []
if self.device.can_heat and self.device.can_cool:
self._operation_list.append(HVAC_MODE_AUTO)
self._support_flags = self._support_flags | SUPPORT_TARGET_TEMPERATURE_RANGE
# Add supported nest thermostat features
if self.device.can_heat:
self._operation_list.append(HVAC_MODE_HEAT)
if self.device.can_cool:
self._operation_list.append(HVAC_MODE_COOL)
self._operation_list.append(HVAC_MODE_OFF)
# feature of device
self._has_fan = self.device.has_fan
if self._has_fan:
self._support_flags = self._support_flags | SUPPORT_FAN_MODE
# data attributes
self._away = None
self._location = None
self._name = None
self._humidity = None
self._target_temperature = None
self._temperature = None
self._temperature_scale = None
self._mode = None
self._action = None
self._fan = None
self._eco_temperature = None
self._is_locked = None
self._locked_temperature = None
self._min_temperature = None
self._max_temperature = None
@property
def should_poll(self):
"""Do not need poll thanks using Nest streaming API."""
return False
async def async_added_to_hass(self):
"""Register update signal handler."""
async def async_update_state():
"""Update device state."""
await self.async_update_ha_state(True)
async_dispatcher_connect(self.hass, SIGNAL_NEST_UPDATE, async_update_state)
@property
def supported_features(self):
"""Return the list of supported features."""
return self._support_flags
@property
def unique_id(self):
"""Return unique ID for this device."""
return self.device.serial
@property
def device_info(self):
"""Return information about the device."""
return {
"identifiers": {(NEST_DOMAIN, self.device.device_id)},
"name": self.device.name_long,
"manufacturer": "Nest Labs",
"model": "Thermostat",
"sw_version": self.device.software_version,
}
@property
def name(self):
"""Return the name of the nest, if any."""
return self._name
@property
def temperature_unit(self):
"""Return the unit of measurement."""
return self._temperature_scale
@property
def current_temperature(self):
"""Return the current temperature."""
return self._temperature
@property
def hvac_mode(self):
"""Return current operation ie. heat, cool, idle."""
if self._mode == NEST_MODE_ECO:
if self.device.previous_mode in MODE_NEST_TO_HASS:
return MODE_NEST_TO_HASS[self.device.previous_mode]
# previous_mode not supported so return the first compatible mode
return self._operation_list[0]
return MODE_NEST_TO_HASS[self._mode]
@property
def hvac_action(self):
"""Return the current hvac action."""
return ACTION_NEST_TO_HASS[self._action]
@property
def target_temperature(self):
"""Return the temperature we try to reach."""
if self._mode not in (NEST_MODE_HEAT_COOL, NEST_MODE_ECO):
return self._target_temperature
return None
@property
def target_temperature_low(self):
"""Return the lower bound temperature we try to reach."""
if self._mode == NEST_MODE_ECO:
return self._eco_temperature[0]
if self._mode == NEST_MODE_HEAT_COOL:
return self._target_temperature[0]
return None
@property
def target_temperature_high(self):
"""Return the upper bound temperature we try to reach."""
if self._mode == NEST_MODE_ECO:
return self._eco_temperature[1]
if self._mode == NEST_MODE_HEAT_COOL:
return self._target_temperature[1]
return None
def set_temperature(self, **kwargs):
"""Set new target temperature."""
temp = None
target_temp_low = kwargs.get(ATTR_TARGET_TEMP_LOW)
target_temp_high = kwargs.get(ATTR_TARGET_TEMP_HIGH)
if self._mode == NEST_MODE_HEAT_COOL:
if target_temp_low is not None and target_temp_high is not None:
temp = (target_temp_low, target_temp_high)
_LOGGER.debug("Nest set_temperature-output-value=%s", temp)
else:
temp = kwargs.get(ATTR_TEMPERATURE)
_LOGGER.debug("Nest set_temperature-output-value=%s", temp)
try:
if temp is not None:
self.device.target = temp
except APIError as api_error:
_LOGGER.error("An error occurred while setting temperature: %s", api_error)
# restore target temperature
self.schedule_update_ha_state(True)
def set_hvac_mode(self, hvac_mode):
"""Set operation mode."""
self.device.mode = MODE_HASS_TO_NEST[hvac_mode]
@property
def hvac_modes(self):
"""List of available operation modes."""
return self._operation_list
@property
def preset_mode(self):
"""Return current preset mode."""
if self._away and self._mode == NEST_MODE_ECO:
return PRESET_AWAY_AND_ECO
if self._away:
return PRESET_AWAY
if self._mode == NEST_MODE_ECO:
return PRESET_ECO
return PRESET_NONE
@property
def preset_modes(self):
"""Return preset modes."""
return PRESET_MODES
def set_preset_mode(self, preset_mode):
"""Set preset mode."""
if preset_mode == self.preset_mode:
return
need_away = preset_mode in (PRESET_AWAY, PRESET_AWAY_AND_ECO)
need_eco = preset_mode in (PRESET_ECO, PRESET_AWAY_AND_ECO)
is_away = self._away
is_eco = self._mode == NEST_MODE_ECO
if is_away != need_away:
self.structure.away = need_away
if is_eco != need_eco:
if need_eco:
self.device.mode = NEST_MODE_ECO
else:
self.device.mode = self.device.previous_mode
@property
def fan_mode(self):
"""Return whether the fan is on."""
if self._has_fan:
# Return whether the fan is on
return FAN_ON if self._fan else FAN_AUTO
# No Fan available so disable slider
return None
@property
def fan_modes(self):
"""List of available fan modes."""
if self._has_fan:
return self._fan_modes
return None
def set_fan_mode(self, fan_mode):
"""Turn fan on/off."""
if self._has_fan:
self.device.fan = fan_mode.lower()
@property
def min_temp(self):
"""Identify min_temp in Nest API or defaults if not available."""
return self._min_temperature
@property
def max_temp(self):
"""Identify max_temp in Nest API or defaults if not available."""
return self._max_temperature
def update(self):
"""Cache value from Python-nest."""
self._location = self.device.where
self._name = self.device.name
self._humidity = self.device.humidity
self._temperature = self.device.temperature
self._mode = self.device.mode
self._action = self.device.hvac_state
self._target_temperature = self.device.target
self._fan = self.device.fan
self._away = self.structure.away == "away"
self._eco_temperature = self.device.eco_temperature
self._locked_temperature = self.device.locked_temperature
self._min_temperature = self.device.min_temperature
self._max_temperature = self.device.max_temperature
self._is_locked = self.device.is_locked
if self.device.temperature_scale == "C":
self._temperature_scale = TEMP_CELSIUS
else:
self._temperature_scale = TEMP_FAHRENHEIT