python-kasa/kasa/smartbulb.py
Teemu R 99e0c4a418
Bulbs: allow specifying transition for state changes (#70)
All state changing functions now allow defining transition time in milliseconds
2020-06-14 20:21:55 +02:00

312 lines
10 KiB
Python

"""Module for bulbs (LB*, KL*, KB*)."""
import re
from typing import Any, Dict, Tuple, cast
from kasa.smartdevice import (
DeviceType,
SmartDevice,
SmartDeviceException,
requires_update,
)
TPLINK_KELVIN = {
"LB130": (2500, 9000),
"LB120": (2700, 6500),
"LB230": (2500, 9000),
"KB130": (2500, 9000),
"KL130": (2500, 9000),
r"KL120\(EU\)": (2700, 6500),
r"KL120\(US\)": (2700, 5000),
}
class SmartBulb(SmartDevice):
"""Representation of a TP-Link Smart Bulb.
Usage example:
```python
p = SmartBulb("192.168.1.105")
await p.update()
# print the devices alias
print(p.alias)
# change state of bulb
await p.turn_on()
await p.update()
assert p.is_on
await p.turn_off()
# query and print current state of plug
print(p.state_information)
# check whether the bulb supports color changes
if p.is_color:
print("we got color!")
# set the color to an HSV tuple
await p.set_hsv(180, 100, 100)
await p.update()
# get the current HSV value
print(p.hsv)
# check whether the bulb supports setting color temperature
if p.is_variable_color_temp:
# set the color temperature in Kelvin
await p.set_color_temp(3000)
await p.update()
# get the current color temperature
print(p.color_temp)
# check whether the bulb is dimmable
if p.is_dimmable:
# set the bulb to 50% brightness
await p.set_brightness(50)
await p.update()
# check the current brightness
print(p.brightness)
```
Errors reported by the device are raised as SmartDeviceExceptions,
and should be handled by the user of the library.
"""
LIGHT_SERVICE = "smartlife.iot.smartbulb.lightingservice"
def __init__(self, host: str) -> None:
super().__init__(host=host)
self.emeter_type = "smartlife.iot.common.emeter"
self._device_type = DeviceType.Bulb
@property # type: ignore
@requires_update
def is_color(self) -> bool:
"""Whether the bulb supports color changes."""
sys_info = self.sys_info
return bool(sys_info["is_color"])
@property # type: ignore
@requires_update
def is_dimmable(self) -> bool:
"""Whether the bulb supports brightness changes."""
sys_info = self.sys_info
return bool(sys_info["is_dimmable"])
@property # type: ignore
@requires_update
def is_variable_color_temp(self) -> bool:
"""Whether the bulb supports color temperature changes."""
sys_info = self.sys_info
return bool(sys_info["is_variable_color_temp"])
@property # type: ignore
@requires_update
def valid_temperature_range(self) -> Tuple[int, int]:
"""Return the device-specific white temperature range (in Kelvin).
:return: White temperature range in Kelvin (minimum, maximum)
"""
if not self.is_variable_color_temp:
raise SmartDeviceException("Color temperature not supported")
for model, temp_range in TPLINK_KELVIN.items():
sys_info = self.sys_info
if re.match(model, sys_info["model"]):
return temp_range
raise SmartDeviceException(
"Unknown color temperature range, please open an issue on github"
)
@property # type: ignore
@requires_update
def light_state(self) -> Dict[str, str]:
"""Query the light state."""
light_state = self._last_update["system"]["get_sysinfo"]["light_state"]
if light_state is None:
raise SmartDeviceException(
"The device has no light_state or you have not called update()"
)
# if the bulb is off, its state is stored under a different key
# as is_on property depends on on_off itself, we check it here manually
is_on = light_state["on_off"]
if not is_on:
off_state = {**light_state["dft_on_state"], "on_off": is_on}
return cast(dict, off_state)
return light_state
async def get_light_state(self) -> Dict[str, Dict]:
"""Query the light state."""
# TODO: add warning and refer to use light.state?
return await self._query_helper(self.LIGHT_SERVICE, "get_light_state")
async def set_light_state(self, state: Dict, *, transition: int = None) -> Dict:
"""Set the light state."""
if transition is not None:
state["transition_period"] = transition
light_state = await self._query_helper(
self.LIGHT_SERVICE, "transition_light_state", state
)
return light_state
@property # type: ignore
@requires_update
def hsv(self) -> Tuple[int, int, int]:
"""Return the current HSV state of the bulb.
:return: hue, saturation and value (degrees, %, %)
"""
if not self.is_color:
raise SmartDeviceException("Bulb does not support color.")
light_state = cast(dict, self.light_state)
hue = light_state["hue"]
saturation = light_state["saturation"]
value = light_state["brightness"]
return hue, saturation, value
def _raise_for_invalid_brightness(self, value):
if not isinstance(value, int) or not (0 <= value <= 100):
raise ValueError(
"Invalid brightness value: {} " "(valid range: 0-100%)".format(value)
)
@requires_update
async def set_hsv(
self, hue: int, saturation: int, value: int, *, transition: int = None
) -> Dict:
"""Set new HSV.
:param int hue: hue in degrees
:param int saturation: saturation in percentage [0,100]
:param int value: value in percentage [0, 100]
:param int transition: transition in milliseconds.
"""
if not self.is_color:
raise SmartDeviceException("Bulb does not support color.")
if not isinstance(hue, int) or not (0 <= hue <= 360):
raise ValueError(
"Invalid hue value: {} " "(valid range: 0-360)".format(hue)
)
if not isinstance(saturation, int) or not (0 <= saturation <= 100):
raise ValueError(
"Invalid saturation value: {} "
"(valid range: 0-100%)".format(saturation)
)
self._raise_for_invalid_brightness(value)
light_state = {
"hue": hue,
"saturation": saturation,
"brightness": value,
"color_temp": 0,
}
return await self.set_light_state(light_state, transition=transition)
@property # type: ignore
@requires_update
def color_temp(self) -> int:
"""Return color temperature of the device in kelvin."""
if not self.is_variable_color_temp:
raise SmartDeviceException("Bulb does not support colortemp.")
light_state = self.light_state
return int(light_state["color_temp"])
@requires_update
async def set_color_temp(self, temp: int, *, transition: int = None) -> Dict:
"""Set the color temperature of the device in kelvin.
:param int temp: The new color temperature, in Kelvin
:param int transition: transition in milliseconds.
"""
if not self.is_variable_color_temp:
raise SmartDeviceException("Bulb does not support colortemp.")
valid_temperature_range = self.valid_temperature_range
if temp < valid_temperature_range[0] or temp > valid_temperature_range[1]:
raise ValueError(
"Temperature should be between {} "
"and {}".format(*valid_temperature_range)
)
light_state = {"color_temp": temp}
return await self.set_light_state(light_state, transition=transition)
@property # type: ignore
@requires_update
def brightness(self) -> int:
"""Return the current brightness in percentage."""
if not self.is_dimmable: # pragma: no cover
raise SmartDeviceException("Bulb is not dimmable.")
light_state = self.light_state
return int(light_state["brightness"])
@requires_update
async def set_brightness(self, brightness: int, *, transition: int = None) -> Dict:
"""Set the brightness in percentage.
:param int brightness: brightness in percent
:param int transition: transition in milliseconds.
"""
if not self.is_dimmable: # pragma: no cover
raise SmartDeviceException("Bulb is not dimmable.")
self._raise_for_invalid_brightness(brightness)
light_state = {"brightness": brightness}
return await self.set_light_state(light_state, transition=transition)
@property # type: ignore
@requires_update
def state_information(self) -> Dict[str, Any]:
"""Return bulb-specific state information."""
info: Dict[str, Any] = {
"Brightness": self.brightness,
"Is dimmable": self.is_dimmable,
}
if self.is_variable_color_temp:
info["Color temperature"] = self.color_temp
info["Valid temperature range"] = self.valid_temperature_range
if self.is_color:
info["HSV"] = self.hsv
return info
@property # type: ignore
@requires_update
def is_on(self) -> bool:
"""Return whether the device is on."""
light_state = self.light_state
return bool(light_state["on_off"])
async def turn_off(self, *, transition: int = None) -> Dict:
"""Turn the bulb off.
:param int transition: transition in milliseconds.
"""
return await self.set_light_state({"on_off": 0}, transition=transition)
async def turn_on(self, *, transition: int = None) -> Dict:
"""Turn the bulb on.
:param int transition: transition in milliseconds.
"""
return await self.set_light_state({"on_off": 1}, transition=transition)
@property # type: ignore
@requires_update
def has_emeter(self) -> bool:
"""Return that the bulb has an emeter."""
return True