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mirror of https://github.com/home-assistant/core synced 2024-08-02 23:40:32 +02:00
ha-core/homeassistant/components/syncthing/sensor.py
epenet 595e8a327c
Add sensor setup type hints [s] (#63310)
Co-authored-by: epenet <epenet@users.noreply.github.com>
2022-01-03 19:06:08 +01:00

272 lines
8.3 KiB
Python

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