269 lines
8.0 KiB
Python
269 lines
8.0 KiB
Python
"""Support for monitoring the Syncthing instance."""
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import logging
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import aiosyncthing
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from homeassistant.components.sensor import SensorEntity
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from homeassistant.core import callback
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from homeassistant.exceptions import PlatformNotReady
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.event import async_track_time_interval
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from .const import (
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DOMAIN,
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FOLDER_PAUSED_RECEIVED,
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FOLDER_SENSOR_ALERT_ICON,
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FOLDER_SENSOR_DEFAULT_ICON,
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FOLDER_SENSOR_ICONS,
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FOLDER_SUMMARY_RECEIVED,
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SCAN_INTERVAL,
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SERVER_AVAILABLE,
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SERVER_UNAVAILABLE,
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STATE_CHANGED_RECEIVED,
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)
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_entry(hass, config_entry, async_add_entities):
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"""Set up the Syncthing sensors."""
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syncthing = hass.data[DOMAIN][config_entry.entry_id]
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try:
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config = await syncthing.system.config()
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version = await syncthing.system.version()
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except aiosyncthing.exceptions.SyncthingError as exception:
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raise PlatformNotReady from exception
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server_id = syncthing.server_id
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entities = [
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FolderSensor(
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syncthing,
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server_id,
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folder["id"],
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folder["label"],
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version["version"],
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)
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for folder in config["folders"]
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]
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async_add_entities(entities)
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class FolderSensor(SensorEntity):
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"""A Syncthing folder sensor."""
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STATE_ATTRIBUTES = {
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"errors": "errors",
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"globalBytes": "global_bytes",
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"globalDeleted": "global_deleted",
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"globalDirectories": "global_directories",
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"globalFiles": "global_files",
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"globalSymlinks": "global_symlinks",
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"globalTotalItems": "global_total_items",
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"ignorePatterns": "ignore_patterns",
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"inSyncBytes": "in_sync_bytes",
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"inSyncFiles": "in_sync_files",
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"invalid": "invalid",
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"localBytes": "local_bytes",
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"localDeleted": "local_deleted",
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"localDirectories": "local_directories",
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"localFiles": "local_files",
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"localSymlinks": "local_symlinks",
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"localTotalItems": "local_total_items",
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"needBytes": "need_bytes",
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"needDeletes": "need_deletes",
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"needDirectories": "need_directories",
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"needFiles": "need_files",
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"needSymlinks": "need_symlinks",
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"needTotalItems": "need_total_items",
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"pullErrors": "pull_errors",
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"state": "state",
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}
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def __init__(self, syncthing, server_id, folder_id, folder_label, version):
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"""Initialize the sensor."""
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self._syncthing = syncthing
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self._server_id = server_id
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self._folder_id = folder_id
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self._folder_label = folder_label
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self._state = None
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self._unsub_timer = None
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self._version = version
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self._short_server_id = server_id.split("-")[0]
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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 f"{self._short_server_id} {self._folder_id} {self._folder_label}"
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@property
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def unique_id(self):
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"""Return the unique id of the entity."""
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return f"{self._short_server_id}-{self._folder_id}"
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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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return self._state["state"]
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@property
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def available(self):
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"""Could the device be accessed during the last update call."""
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return self._state is not None
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@property
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def icon(self):
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"""Return the icon for this sensor."""
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if self._state is None:
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return FOLDER_SENSOR_DEFAULT_ICON
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if self.state in FOLDER_SENSOR_ICONS:
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return FOLDER_SENSOR_ICONS[self.state]
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return FOLDER_SENSOR_ALERT_ICON
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@property
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def extra_state_attributes(self):
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"""Return the state attributes."""
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return self._state
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@property
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def should_poll(self):
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"""Return the polling requirement for this sensor."""
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return False
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@property
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def device_info(self):
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"""Return device information."""
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return {
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"identifiers": {(DOMAIN, self._server_id)},
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"name": f"Syncthing ({self._syncthing.url})",
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"manufacturer": "Syncthing Team",
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"sw_version": self._version,
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"entry_type": "service",
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}
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async def async_update_status(self):
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"""Request folder status and update state."""
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try:
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state = await self._syncthing.database.status(self._folder_id)
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except aiosyncthing.exceptions.SyncthingError:
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self._state = None
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else:
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self._state = self._filter_state(state)
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self.async_write_ha_state()
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def subscribe(self):
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"""Start polling syncthing folder status."""
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if self._unsub_timer is None:
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async def refresh(event_time):
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"""Get the latest data from Syncthing."""
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await self.async_update_status()
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self._unsub_timer = async_track_time_interval(
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self.hass, refresh, SCAN_INTERVAL
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)
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@callback
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def unsubscribe(self):
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"""Stop polling syncthing folder status."""
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if self._unsub_timer is not None:
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self._unsub_timer()
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self._unsub_timer = None
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async def async_added_to_hass(self):
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"""Handle entity which will be added."""
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@callback
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def handle_folder_summary(event):
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if self._state is not None:
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self._state = self._filter_state(event["data"]["summary"])
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self.async_write_ha_state()
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self.async_on_remove(
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async_dispatcher_connect(
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self.hass,
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f"{FOLDER_SUMMARY_RECEIVED}-{self._server_id}-{self._folder_id}",
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handle_folder_summary,
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)
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)
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@callback
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def handle_state_changed(event):
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if self._state is not None:
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self._state["state"] = event["data"]["to"]
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self.async_write_ha_state()
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self.async_on_remove(
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async_dispatcher_connect(
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self.hass,
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f"{STATE_CHANGED_RECEIVED}-{self._server_id}-{self._folder_id}",
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handle_state_changed,
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)
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)
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@callback
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def handle_folder_paused(event):
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if self._state is not None:
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self._state["state"] = "paused"
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self.async_write_ha_state()
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self.async_on_remove(
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async_dispatcher_connect(
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self.hass,
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f"{FOLDER_PAUSED_RECEIVED}-{self._server_id}-{self._folder_id}",
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handle_folder_paused,
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)
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)
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@callback
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def handle_server_unavailable():
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self._state = None
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self.unsubscribe()
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self.async_write_ha_state()
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self.async_on_remove(
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async_dispatcher_connect(
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self.hass,
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f"{SERVER_UNAVAILABLE}-{self._server_id}",
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handle_server_unavailable,
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)
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)
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async def handle_server_available():
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self.subscribe()
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await self.async_update_status()
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self.async_on_remove(
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async_dispatcher_connect(
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self.hass,
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f"{SERVER_AVAILABLE}-{self._server_id}",
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handle_server_available,
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)
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)
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self.subscribe()
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self.async_on_remove(self.unsubscribe)
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await self.async_update_status()
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def _filter_state(self, state):
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# Select only needed state attributes and map their names
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state = {
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self.STATE_ATTRIBUTES[key]: value
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for key, value in state.items()
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if key in self.STATE_ATTRIBUTES
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}
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# A workaround, for some reason, state of paused folders is an empty string
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if state["state"] == "":
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state["state"] = "paused"
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# Add some useful attributes
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state["id"] = self._folder_id
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state["label"] = self._folder_label
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return state
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