"""Module for multi-socket devices (HS300, HS107, KP303, ..)."""
from __future__ import annotations
import logging
from collections import defaultdict
from datetime import datetime, timedelta
from typing import Any
from ..device_type import DeviceType
from ..deviceconfig import DeviceConfig
from ..exceptions import KasaException
from ..protocol import BaseProtocol
from .iotdevice import (
EmeterStatus,
IotDevice,
merge,
requires_update,
)
from .iotplug import IotPlug
from .modules import Antitheft, Countdown, Schedule, Time, Usage
_LOGGER = logging.getLogger(__name__)
def merge_sums(dicts):
"""Merge the sum of dicts."""
total_dict: defaultdict[int, float] = defaultdict(lambda: 0.0)
for sum_dict in dicts:
for day, value in sum_dict.items():
total_dict[day] += value
return total_dict
class IotStrip(IotDevice):
r"""Representation of a TP-Link Smart Power Strip.
A strip consists of the parent device and its children.
All methods of the parent act on all children, while the child devices
share the common API with the :class:`SmartPlug` class.
To initialize, you have to await :func:`update()` at least once.
This will allow accessing the properties using the exposed properties.
All changes to the device are done using awaitable methods,
which will not change the cached values,
but you must await :func:`update()` separately.
Errors reported by the device are raised as :class:`KasaException`\s,
and should be handled by the user of the library.
Examples:
>>> import asyncio
>>> strip = IotStrip("127.0.0.1")
>>> asyncio.run(strip.update())
>>> strip.alias
TP-LINK_Power Strip_CF69
All methods act on the whole strip:
>>> for plug in strip.children:
>>> print(f"{plug.alias}: {plug.is_on}")
Plug 1: True
Plug 2: False
Plug 3: False
>>> strip.is_on
True
>>> asyncio.run(strip.turn_off())
>>> asyncio.run(strip.update())
Accessing individual plugs can be done using the `children` property:
>>> len(strip.children)
3
>>> for plug in strip.children:
>>> print(f"{plug.alias}: {plug.is_on}")
Plug 1: False
Plug 2: False
Plug 3: False
>>> asyncio.run(strip.children[1].turn_on())
>>> asyncio.run(strip.update())
>>> strip.is_on
True
For more examples, see the :class:`SmartDevice` class.
"""
def __init__(
self,
host: str,
*,
config: DeviceConfig | None = None,
protocol: BaseProtocol | None = None,
) -> None:
super().__init__(host=host, config=config, protocol=protocol)
self.emeter_type = "emeter"
self._device_type = DeviceType.Strip
self.add_module("antitheft", Antitheft(self, "anti_theft"))
self.add_module("schedule", Schedule(self, "schedule"))
self.add_module("usage", Usage(self, "schedule"))
self.add_module("time", Time(self, "time"))
self.add_module("countdown", Countdown(self, "countdown"))
@property # type: ignore
@requires_update
def is_on(self) -> bool:
"""Return if any of the outlets are on."""
return any(plug.is_on for plug in self.children)
async def update(self, update_children: bool = True):
"""Update some of the attributes.
Needed for methods that are decorated with `requires_update`.
"""
await super().update(update_children)
# Initialize the child devices during the first update.
if not self.children:
children = self.sys_info["children"]
_LOGGER.debug("Initializing %s child sockets", len(children))
self._children = {
f"{self.mac}_{child['id']}": IotStripPlug(
self.host, parent=self, child_id=child["id"]
)
for child in children
}
if update_children and self.has_emeter:
for plug in self.children:
await plug.update()
async def turn_on(self, **kwargs):
"""Turn the strip on."""
await self._query_helper("system", "set_relay_state", {"state": 1})
async def turn_off(self, **kwargs):
"""Turn the strip off."""
await self._query_helper("system", "set_relay_state", {"state": 0})
@property # type: ignore
@requires_update
def on_since(self) -> datetime | None:
"""Return the maximum on-time of all outlets."""
if self.is_off:
return None
return max(plug.on_since for plug in self.children if plug.on_since is not None)
@property # type: ignore
@requires_update
def led(self) -> bool:
"""Return the state of the led."""
sys_info = self.sys_info
return bool(1 - sys_info["led_off"])
async def set_led(self, state: bool):
"""Set the state of the led (night mode)."""
await self._query_helper("system", "set_led_off", {"off": int(not state)})
async def current_consumption(self) -> float:
"""Get the current power consumption in watts."""
return sum([await plug.current_consumption() for plug in self.children])
@requires_update
async def get_emeter_realtime(self) -> EmeterStatus:
"""Retrieve current energy readings."""
emeter_rt = await self._async_get_emeter_sum("get_emeter_realtime", {})
# Voltage is averaged since each read will result
# in a slightly different voltage since they are not atomic
emeter_rt["voltage_mv"] = int(emeter_rt["voltage_mv"] / len(self.children))
return EmeterStatus(emeter_rt)
@requires_update
async def get_emeter_daily(
self, year: int | None = None, month: int | None = None, kwh: bool = True
) -> dict:
"""Retrieve daily statistics for a given month.
:param year: year for which to retrieve statistics (default: this year)
:param month: month for which to retrieve statistics (default: this
month)
:param kwh: return usage in kWh (default: True)
:return: mapping of day of month to value
"""
return await self._async_get_emeter_sum(
"get_emeter_daily", {"year": year, "month": month, "kwh": kwh}
)
@requires_update
async def get_emeter_monthly(
self, year: int | None = None, kwh: bool = True
) -> dict:
"""Retrieve monthly statistics for a given year.
:param year: year for which to retrieve statistics (default: this year)
:param kwh: return usage in kWh (default: True)
"""
return await self._async_get_emeter_sum(
"get_emeter_monthly", {"year": year, "kwh": kwh}
)
async def _async_get_emeter_sum(self, func: str, kwargs: dict[str, Any]) -> dict:
"""Retreive emeter stats for a time period from children."""
self._verify_emeter()
return merge_sums(
[await getattr(plug, func)(**kwargs) for plug in self.children]
)
@requires_update
async def erase_emeter_stats(self):
"""Erase energy meter statistics for all plugs."""
for plug in self.children:
await plug.erase_emeter_stats()
@property # type: ignore
@requires_update
def emeter_this_month(self) -> float | None:
"""Return this month's energy consumption in kWh."""
return sum(v if (v := plug.emeter_this_month) else 0 for plug in self.children)
@property # type: ignore
@requires_update
def emeter_today(self) -> float | None:
"""Return this month's energy consumption in kWh."""
return sum(v if (v := plug.emeter_today) else 0 for plug in self.children)
@property # type: ignore
@requires_update
def emeter_realtime(self) -> EmeterStatus:
"""Return current energy readings."""
emeter = merge_sums([plug.emeter_realtime for plug in self.children])
# Voltage is averaged since each read will result
# in a slightly different voltage since they are not atomic
emeter["voltage_mv"] = int(emeter["voltage_mv"] / len(self.children))
return EmeterStatus(emeter)
class IotStripPlug(IotPlug):
"""Representation of a single socket in a power strip.
This allows you to use the sockets as they were SmartPlug objects.
Instead of calling an update on any of these, you should call an update
on the parent device before accessing the properties.
The plug inherits (most of) the system information from the parent.
"""
def __init__(self, host: str, parent: IotStrip, child_id: str) -> None:
super().__init__(host)
self.parent = parent
self.child_id = child_id
self._last_update = parent._last_update
self._set_sys_info(parent.sys_info)
self._device_type = DeviceType.StripSocket
self._modules = {}
self.protocol = parent.protocol # Must use the same connection as the parent
self.add_module("time", Time(self, "time"))
async def update(self, update_children: bool = True):
"""Query the device to update the data.
Needed for properties that are decorated with `requires_update`.
"""
await self._modular_update({})
def _create_emeter_request(self, year: int | None = None, month: int | None = None):
"""Create a request for requesting all emeter statistics at once."""
if year is None:
year = datetime.now().year
if month is None:
month = datetime.now().month
req: dict[str, Any] = {}
merge(req, self._create_request("emeter", "get_realtime"))
merge(req, self._create_request("emeter", "get_monthstat", {"year": year}))
merge(
req,
self._create_request(
"emeter", "get_daystat", {"month": month, "year": year}
),
)
return req
def _create_request(
self, target: str, cmd: str, arg: dict | None = None, child_ids=None
):
request: dict[str, Any] = {
"context": {"child_ids": [self.child_id]},
target: {cmd: arg},
}
return request
async def _query_helper(
self, target: str, cmd: str, arg: dict | None = None, child_ids=None
) -> Any:
"""Override query helper to include the child_ids."""
return await self.parent._query_helper(
target, cmd, arg, child_ids=[self.child_id]
)
@property # type: ignore
@requires_update
def is_on(self) -> bool:
"""Return whether device is on."""
info = self._get_child_info()
return bool(info["state"])
@property # type: ignore
@requires_update
def led(self) -> bool:
"""Return the state of the led.
This is always false for subdevices.
"""
return False
@property # type: ignore
@requires_update
def device_id(self) -> str:
"""Return unique ID for the socket.
This is a combination of MAC and child's ID.
"""
return f"{self.mac}_{self.child_id}"
@property # type: ignore
@requires_update
def alias(self) -> str:
"""Return device name (alias)."""
info = self._get_child_info()
return info["alias"]
@property # type: ignore
@requires_update
def next_action(self) -> dict:
"""Return next scheduled(?) action."""
info = self._get_child_info()
return info["next_action"]
@property # type: ignore
@requires_update
def on_since(self) -> datetime | None:
"""Return on-time, if available."""
if self.is_off:
return None
info = self._get_child_info()
on_time = info["on_time"]
return datetime.now().replace(microsecond=0) - timedelta(seconds=on_time)
@property # type: ignore
@requires_update
def model(self) -> str:
"""Return device model for a child socket."""
sys_info = self.parent.sys_info
return f"Socket for {sys_info['model']}"
def _get_child_info(self) -> dict:
"""Return the subdevice information for this device."""
for plug in self.parent.sys_info["children"]:
if plug["id"] == self.child_id:
return plug
raise KasaException(f"Unable to find children {self.child_id}")