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iluvdatailuvdata
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simplification
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‎README.md‎

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![Dynamic JSON Badge](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Filuvdata%2Fgoogle_nest_fan%2Frefs%2Fheads%2Fmain%2Fcustom_components%2Fgoogle_nest_fan%2Fmanifest.json&query=%24.version&prefix=v&label=dev-version&labelColor=orange)
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A custom HomeAssistant integration that creates an additional entities for each Google Device with a Fan "trait" such as a Nest Thermostat. This entity will track when the fan will shut off "In 2 hours 4 minutes" (rather than the 12 hours hard coded into the core [Google Nest](https://www.home-assistant.io/integrations/nest/) integration.
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A custom HomeAssistant integration that creates an additional entity for each Google Device with a Fan "trait" such as a Nest Thermostat. This entity will track when the fan will shut off "In 2 hours 4 minutes" (rather than the 12 hours hard coded into the core [Google Nest](https://www.home-assistant.io/integrations/nest/) integration.
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A service `google_nest_fan.run_fan` will also be created as an action to run fans for a custom duration.
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A cooresponding number (slider) entity will also be created and will allow you to select the duration you want to start and run your thermostat's fan.
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The core Google Nest Integration must be configured and working for this integration to work.
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@@ -33,66 +32,6 @@ If the core **Google Nest** integration is configured this integration should be
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## Use
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Simple use the slider to select the amount of time you want to run the fan. Upon changing the slider, it should send the request to the device to start the fan for the given duration. To stop the fan, simply turn off through the core integration. If you update the slider, it should change the duration to the most recent selected value.
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### UI Customization
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You can add a custom feature to your thermostat card using the [`Nerwyn/custom-card-features`](https://github.com/Nerwyn/custom-card-features) HACS dashboard integration.
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[![My Home Assistant](https://my.home-assistant.io/badges/hacs_repository.svg)](https://my.home-assistant.io/redirect/hacs_repository/?repository=custom-card-features&owner=Nerwyn&category=Plugin)
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You can then use a similar configuration to create a custom thermostat card:
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<img src="https://raw.githubusercontent.com/iluvdata/google_nest_fan/main/assets/thermostat_card.png" width="600"/>
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<details>
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<summary style="font-weight: bold;">Config for custom thermostat card</summary>
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```yaml
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type: thermostat
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entity: climate.cottage
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show_current_as_primary: false
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features:
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- type: climate-hvac-modes
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- style: icons
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type: climate-preset-modes
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- type: custom:service-call
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entries:
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- type: slider
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entity_id: number.cottage_fan_run_duration
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tap_action:
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action: perform-action
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target:
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entity_id: number.cottage_fan_run_duration
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perform_action: number.set_value
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data:
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value: "{{ value }}"
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confirmation: false
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range:
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- 0
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- 15
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step: 0.25
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value_from_hass_delay: 0
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haptics: true
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autofill_entity_id: true
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label: >-
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{{ iif(state_attr("climate.cottage", "fan_mode") === "on" and value >
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0, "Running Fan " + (value | round(0, "floor") ) + "h" + ((value %
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1)*60) + "m", iif(state_attr("climate.cottage", "fan_mode") === "off"
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and value > 0, "Waiting to Start " + (value | round(0, "floor") ) +
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"h" + ((value % 1)*60) + "m", iif(state_attr("climate.cottage",
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"fan_mode") === "on" and value === 0,"Waiting to Stop", "Start Fan")))
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}}
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styles: |-
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:host{
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{{ "--color: rgb(0, 154, 199);" if state_attr("climate.cottage", "fan_mode") === "on" }}
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}
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icon: >-
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{{ iif(state_attr("climate.cottage", "fan_mode") === "on" and value >
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0, "mdi:fan", "mdi:fan-off") }}
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thumb: default
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styles: ""
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```
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</details>
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To activate the fan use the service. To stop the fan, simply turn off through the core integration. The sensor should display the stop time.
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‎assets/thermostat_card.png‎

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‎custom_components/google_nest_fan/__init__.py‎

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from typing import cast
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from google_nest_sdm.device import Device
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from google_nest_sdm.exceptions import ApiException
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# pylint: disable=hass-component-root-import
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from homeassistant.components.nest import ApiException, NestConfigEntry
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from homeassistant.components.nest import NestConfigEntry
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from homeassistant.components.nest.climate import FanTrait, ThermostatHvacTrait
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from homeassistant.components.nest.const import DOMAIN as NEST_DOMAIN
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from homeassistant.config_entries import ConfigEntry
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)
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):
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raise ConfigEntryError(
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translation_domain=DOMAIN, translation_key="nest_not_loaded"
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translation_domain=DOMAIN,
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translation_key="nest_not_loaded",
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)
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for nestentry in entries:
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for device in nestentry.runtime_data.device_manager.devices.values():
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if ThermostatHvacTrait.NAME in device.traits:
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raise ConfigEntryError(
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translation_domain=DOMAIN, translation_key="no_thermostats"
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)
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entry.runtime_data = GoogleNestFanData(devices)
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entry.runtime_data = GoogleNestFanData(devices=devices)
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await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
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‎custom_components/google_nest_fan/config_flow.py‎

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from __future__ import annotations
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import logging
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from typing import Any
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# from typing import Any
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from google_nest_sdm.device import Device
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# pylint: disable=hass-component-root-import
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from homeassistant.components.nest.climate import ThermostatHvacTrait
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from homeassistant.components.nest.const import DOMAIN as NEST_DOMAIN
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from homeassistant.components.nest.types import NestConfigEntry
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# pylint: enable=hass-component-root-import
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from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
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# from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers import config_entry_flow
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from .const import DOMAIN
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_LOGGER = logging.getLogger(__name__)
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class GoogleNestFanFlow(ConfigFlow, domain=DOMAIN):
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"""Google Nest Fan Flow."""
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async def async_step_user(
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self, user_input: dict[str, Any] | None = None
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) -> ConfigFlowResult:
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"""Add the integration."""
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error: str = ""
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entries: list[NestConfigEntry] = self.hass.config_entries.async_loaded_entries(
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NEST_DOMAIN
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def _async_has_configured_thermostats(hass: HomeAssistant) -> bool:
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entries: list[NestConfigEntry] = hass.config_entries.async_loaded_entries(
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NEST_DOMAIN
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)
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if not entries:
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return False
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devices: list[Device] = []
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for entry in entries:
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devices.extend(
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device
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for device in entry.runtime_data.device_manager.devices.values()
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if ThermostatHvacTrait.NAME in device.traits
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)
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if not entries:
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error = "nest_not_loaded"
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else:
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devices: list[Device] = []
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for entry in entries:
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devices.extend(
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device
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for device in entry.runtime_data.device_manager.devices.values()
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if ThermostatHvacTrait.NAME in device.traits
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)
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if not devices:
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error = "no_thermostats"
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if not error:
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return self.async_create_entry(
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title="Google Nest Fan Customization",
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description="Will create entries for all Nest fans",
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data={},
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)
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return self.async_abort(reason=error)
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return len(devices) > 0
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config_entry_flow.register_discovery_flow(
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DOMAIN, "Google Nest Fan", _async_has_configured_thermostats
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)
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# class GoogleNestFanFlow(ConfigFlow, domain=DOMAIN):
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# """Google Nest Fan Flow."""
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# async def async_step_user(
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# self, user_input: dict[str, Any] | None = None
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# ) -> ConfigFlowResult:
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# """Add the integration."""
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# error: str = ""
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# entries: list[NestConfigEntry] = self.hass.config_entries.async_loaded_entries(
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# NEST_DOMAIN
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# )
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# if not entries:
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# error = "nest_not_loaded"
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# else:
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# devices: list[Device] = []
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# for entry in entries:
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# devices.extend(
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# device
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# for device in entry.runtime_data.device_manager.devices.values()
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# if ThermostatHvacTrait.NAME in device.traits
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# )
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# if not devices:
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# error = "no_thermostats"
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# if not error:
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# return self.async_create_entry(
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# title="Google Nest Fan Customization",
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# description="Will create entries for all Nest fans",
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# data={},
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# )
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# return self.async_abort(reason=error)

‎custom_components/google_nest_fan/const.py‎

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import homeassistant.helpers.config_validation as cv
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DOMAIN = "google_nest_fan"
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PLATFORMS = {Platform.SENSOR, Platform.NUMBER}
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PLATFORMS = {Platform.SENSOR}
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SCAN_INTERVAL = timedelta(minutes=1)
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# SCAN_INTERVAL = timedelta(minutes=1)
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FAN_SERVICE_DURATION = "duration"
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FAN_SERVICE = "run_fan"
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MAX_RUN_TIME: Final[timedelta] = timedelta(hours=15)
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RUN_TIME_DEBOUNCE: Final[timedelta] = timedelta(seconds=2)
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# RUN_TIME_DEBOUNCE: Final[timedelta] = timedelta(seconds=2)
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FAN_SERVICE_SCHEMA = vol.Schema(
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vol.All(

‎custom_components/google_nest_fan/manifest.json‎

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"requirements": [],
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"ssdp": [],
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"zeroconf": [],
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"version": "2025.10.2",
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"integration_type": "helper",
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"version": "2025.10.3",
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"integration_type": "service",
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"issue_tracker": "https://github.com/iluvdata/google_nest_fan/issues"
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}

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