134 lines
4.1 KiB
Python
134 lines
4.1 KiB
Python
"""Support for Dexcom sensors."""
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from homeassistant.const import CONF_UNIT_OF_MEASUREMENT, CONF_USERNAME
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from homeassistant.helpers.entity import Entity
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from .const import COORDINATOR, DOMAIN, GLUCOSE_TREND_ICON, GLUCOSE_VALUE_ICON, MG_DL
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async def async_setup_entry(hass, config_entry, async_add_entities):
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"""Set up the Dexcom sensors."""
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coordinator = hass.data[DOMAIN][config_entry.entry_id][COORDINATOR]
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username = config_entry.data[CONF_USERNAME]
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unit_of_measurement = config_entry.options[CONF_UNIT_OF_MEASUREMENT]
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sensors = []
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sensors.append(DexcomGlucoseTrendSensor(coordinator, username))
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sensors.append(DexcomGlucoseValueSensor(coordinator, username, unit_of_measurement))
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async_add_entities(sensors, False)
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class DexcomGlucoseValueSensor(Entity):
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"""Representation of a Dexcom glucose value sensor."""
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def __init__(self, coordinator, username, unit_of_measurement):
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"""Initialize the sensor."""
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self._state = None
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self._unit_of_measurement = unit_of_measurement
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self._attribute_unit_of_measurement = (
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"mg_dl" if unit_of_measurement == MG_DL else "mmol_l"
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)
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self._coordinator = coordinator
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self._name = f"{DOMAIN}_{username}_glucose_value"
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self._unique_id = f"{username}-value"
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@property
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def name(self):
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"""Return the name of the sensor."""
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return self._name
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@property
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def icon(self):
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"""Return the icon for the frontend."""
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return GLUCOSE_VALUE_ICON
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement of the device."""
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return self._unit_of_measurement
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@property
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def state(self):
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"""Return the state of the sensor."""
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if self._coordinator.data:
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return getattr(self._coordinator.data, self._attribute_unit_of_measurement)
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return None
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@property
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def available(self):
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"""Return True if entity is available."""
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return self._coordinator.last_update_success
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@property
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def should_poll(self):
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"""Return False, updates are controlled via coordinator."""
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return False
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@property
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def unique_id(self):
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"""Device unique id."""
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return self._unique_id
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async def async_update(self):
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"""Get the latest state of the sensor."""
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await self._coordinator.async_request_refresh()
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async def async_added_to_hass(self):
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"""When entity is added to hass."""
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self.async_on_remove(
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self._coordinator.async_add_listener(self.async_write_ha_state)
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)
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class DexcomGlucoseTrendSensor(Entity):
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"""Representation of a Dexcom glucose trend sensor."""
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def __init__(self, coordinator, username):
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"""Initialize the sensor."""
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self._state = None
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self._coordinator = coordinator
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self._name = f"{DOMAIN}_{username}_glucose_trend"
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self._unique_id = f"{username}-trend"
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@property
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def name(self):
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"""Return the name of the sensor."""
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return self._name
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@property
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def icon(self):
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"""Return the icon for the frontend."""
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if self._coordinator.data:
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return GLUCOSE_TREND_ICON[self._coordinator.data.trend]
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return GLUCOSE_TREND_ICON[0]
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@property
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def state(self):
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"""Return the state of the sensor."""
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if self._coordinator.data:
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return self._coordinator.data.trend_description
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return None
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@property
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def available(self):
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"""Return True if entity is available."""
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return self._coordinator.last_update_success
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@property
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def should_poll(self):
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"""Return False, updates are controlled via coordinator."""
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return False
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@property
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def unique_id(self):
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"""Device unique id."""
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return self._unique_id
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async def async_update(self):
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"""Get the latest state of the sensor."""
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await self._coordinator.async_request_refresh()
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async def async_added_to_hass(self):
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"""When entity is added to hass."""
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self.async_on_remove(
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self._coordinator.async_add_listener(self.async_write_ha_state)
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)
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