Add Google Mail integration (#82637)

* Add Google Mail integration

* oops

* prettier

* Add email service

* adjustments

* update

* move email to notify

* break out services

* tweaks

* Add CC and BCC support

* drop scope check, breakout tests

* use abstract auth

* tweak

* bump dependency

* dependency bump

* remove oauth2client

homeassistant/components/google_mail/sensor.py

@@ -0,0 +1,52 @@
+"""Support for Google Mail Sensors."""
+from __future__ import annotations
+
+from datetime import datetime, timedelta, timezone
+
+from googleapiclient.http import HttpRequest
+
+from homeassistant.components.sensor import (
+    SensorDeviceClass,
+    SensorEntity,
+    SensorEntityDescription,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from .const import DOMAIN
+from .entity import GoogleMailEntity
+
+SCAN_INTERVAL = timedelta(minutes=15)
+
+SENSOR_TYPE = SensorEntityDescription(
+    key="vacation_end_date",
+    name="Vacation end date",
+    icon="mdi:clock",
+    device_class=SensorDeviceClass.TIMESTAMP,
+)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
+) -> None:
+    """Set up the Google Mail sensor."""
+    async_add_entities(
+        [GoogleMailSensor(hass.data[DOMAIN][entry.entry_id], SENSOR_TYPE)], True
+    )
+
+
+class GoogleMailSensor(GoogleMailEntity, SensorEntity):
+    """Representation of a Google Mail sensor."""
+
+    async def async_update(self) -> None:
+        """Get the vacation data."""
+        service = await self.auth.get_resource()
+        settings: HttpRequest = service.users().settings().getVacation(userId="me")
+        data = await self.hass.async_add_executor_job(settings.execute)
+
+        if data["enableAutoReply"]:
+            value = datetime.fromtimestamp(int(data["endTime"]) / 1000, tz=timezone.utc)
+        else:
+            value = None
+        self._attr_native_value = value