566 lines
17 KiB
Python
566 lines
17 KiB
Python
# SPDX-FileCopyrightText: 2020-2021 Andrius Štikonas <andrius@stikonas.eu>
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# SPDX-FileCopyrightText: 2021 Dave O'Connor <daveoc@google.com>
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# SPDX-License-Identifier: LGPL-3.0-or-later
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import asyncio
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import datetime
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import json
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import logging
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import socket
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from async_property import async_cached_property
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from types import SimpleNamespace
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from neohubapi.enums import HCMode
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from neohubapi.enums import ScheduleFormat
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from neohubapi.enums import schedule_format_int_to_enum
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from neohubapi.neostat import NeoStat
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class Error(Exception):
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pass
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class NeoHubUsageError(Error):
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pass
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class NeoHubConnectionError(Error):
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pass
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class NeoHub:
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def __init__(self, host='Neo-Hub', port=4242, request_timeout=60, request_attempts=1):
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self._logger = logging.getLogger('neohub')
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self._host = host
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self._port = port
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self._request_timeout = request_timeout
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self._request_attempts = request_attempts
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async def _send_message(self, reader: asyncio.StreamReader, writer: asyncio.StreamWriter, message: str):
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encoded_message = bytearray(json.dumps(message) + "\0\r", "utf-8")
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self._logger.debug(f"Sending message: {encoded_message}")
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writer.write(encoded_message)
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await writer.drain()
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data = await reader.readuntil(b'\0')
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writer.close()
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await writer.wait_closed()
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data = data.strip(b'\0')
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return data
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async def _send(self, message, expected_reply=None):
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last_exception = None
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for attempt in range(1, self._request_attempts+1):
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try:
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reader, writer = await asyncio.open_connection(self._host, self._port)
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data = await asyncio.wait_for(
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self._send_message(reader, writer, message), timeout=self._request_timeout)
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json_string = data.decode('utf-8')
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self._logger.debug(f"Received message: {json_string}")
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reply = json.loads(json_string, object_hook=lambda d: SimpleNamespace(**d))
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if expected_reply is None:
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return reply
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if reply.__dict__ == expected_reply:
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return True
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self._logger.error(f"[{attempt}] Unexpected reply: {reply}")
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except (socket.gaierror, ConnectionRefusedError) as e:
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last_exception = NeoHubConnectionError(e)
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self._logger.error(f"[{attempt}] Could not connect to NeoHub at {self._host}: {e}")
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except asyncio.TimeoutError as e:
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last_exception = e
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self._logger.error(f"[{attempt}] Timed out while sending a message to {self._host}")
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if writer is not None:
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writer.close()
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except json.decoder.JSONDecodeError as e:
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last_exception = e
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self._logger.error(f"[{attempt}] Could not decode JSON: {e}")
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# Wait for 1/2 of the timeout value before retrying.
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if self._request_attempts > 1 and attempt < self._request_attempts:
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await asyncio.sleep(self._request_timeout / 2)
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if expected_reply is None and last_exception is not None:
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raise(last_exception)
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return False
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def _devices_to_names(self, devices: [NeoStat]):
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"""
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Returns the list of device names
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"""
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try:
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return [x.name for x in devices]
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except (TypeError, AttributeError):
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raise NeoHubUsageError('devices must be a list of NeoStat objects')
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async def firmware(self):
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"""
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NeoHub firmware version
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"""
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message = {"FIRMWARE": 0}
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result = await self._send(message)
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firmware_version = int(getattr(result, 'firmware version'))
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return firmware_version
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async def get_system(self):
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"""
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Get system wide variables
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"""
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message = {"GET_SYSTEM": 0}
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data = await self._send(message)
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data.FORMAT = schedule_format_int_to_enum(data.FORMAT)
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data.ALT_TIMER_FORMAT = schedule_format_int_to_enum(data.ALT_TIMER_FORMAT)
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return data
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@async_cached_property
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async def target_temperature_step(self):
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"""
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Returns Neohub's target temperature step
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"""
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firmware_version = await self.firmware()
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if firmware_version >= 2135:
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return 0.5
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else:
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return 1
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async def reset(self):
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"""
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Reboot neohub
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Returns True if Restart is initiated
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"""
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message = {"RESET": 0}
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reply = {"Restarting": 1}
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firmware_version = await self.firmware()
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result = ""
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if firmware_version >= 2027:
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result = await self._send(message, reply)
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return result
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else:
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return False
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async def set_channel(self, channel: int):
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"""
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Set ZigBee channel.
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Only channels 11, 14, 15, 19, 20, 24, 25 are allowed.
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"""
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try:
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message = {"SET_CHANNEL": int(channel)}
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except ValueError:
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raise NeoHubUsageError('channel must be a number')
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reply = {"result": "Trying to change channel"}
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result = await self._send(message, reply)
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return result
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async def set_temp_format(self, temp_format: str):
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"""
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Set temperature format to C or F
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"""
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message = {"SET_TEMP_FORMAT": temp_format}
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reply = {"result": f"Temperature format set to {temp_format}"}
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result = await self._send(message, reply)
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return result
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async def set_hc_mode(self, hc_mode: HCMode, devices: [NeoStat]):
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"""
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Set hc_mode to AUTO or...
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"""
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names = self._devices_to_names(devices)
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message = {"SET_HC_MODE": [hc_mode.value, names]}
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reply = {"result": "HC_MODE was set"}
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result = await self._send(message, reply)
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return result
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async def set_format(self, sched_format: ScheduleFormat):
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"""
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Sets schedule format
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Format is specified using ScheduleFormat enum:
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"""
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if not isinstance(sched_format, ScheduleFormat):
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raise NeoHubUsageError('sched_format must be a ScheduleFormat')
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message = {"SET_FORMAT": sched_format.value}
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reply = {"result": "Format was set"}
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result = await self._send(message, reply)
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return result
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async def set_away(self, state: bool):
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"""
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Enables away mode for all devices.
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Puts thermostats into frost mode and timeclocks are set to off.
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Instead of this function it is recommended to use frost on/off commands
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List of affected devices can be restricted using GLOBAL_DEV_LIST command
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"""
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message = {"AWAY_ON" if state else "AWAY_OFF": 0}
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reply = {"result": "away on" if state else "away off"}
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result = await self._send(message, reply)
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return result
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async def set_holiday(self, start: datetime.datetime, end: datetime.datetime):
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"""
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Sets holiday mode.
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start: beginning of holiday
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end: end of holiday
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"""
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for datetime_arg in (start, end):
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if not isinstance(datetime_arg, datetime.datetime):
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raise NeoHubUsageError('start and end must be datetime.datetime objects')
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message = {"HOLIDAY": [start.strftime("%H%M%S%d%m%Y"), end.strftime("%H%M%S%d%m%Y")]}
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result = await self._send(message)
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return result
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async def get_holiday(self):
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"""
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Get list of holidays
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start end end times are converted to datetimes
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"""
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message = {"GET_HOLIDAY": 0}
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result = await self._send(message)
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result.start = datetime.datetime.strptime(
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result.start.strip(), "%a %b %d %H:%M:%S %Y") if result.start else None
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result.end = datetime.datetime.strptime(
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result.end.strip(), "%a %b %d %H:%M:%S %Y") if result.end else None
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return result
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async def cancel_holiday(self):
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"""
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Cancels holidays and returns to normal schedule
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"""
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message = {"CANCEL_HOLIDAY": 0}
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reply = {"result": "holiday cancelled"}
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result = await self._send(message, reply)
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return result
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async def get_devices(self):
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"""
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Returns list of devices
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{"result": ["device1"]}
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"""
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message = {"GET_DEVICES": 0}
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result = await self._send(message)
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return result
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async def get_device_list(self, zone: str):
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"""
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Returns list of devices associated with zone
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"""
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message = {"GET_DEVICE_LIST": zone}
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result = await self._send(message)
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if 'error' in result:
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return False
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else:
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return result[zone]
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async def devices_sn(self):
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"""
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Returns serial numbers of attached devices
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{'name': [id, 'serial', 1], ...}
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"""
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message = {"DEVICES_SN": 0}
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result = await self._send(message)
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return result
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async def set_ntp(self, state: bool):
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"""
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Enables NTP client on Neohub
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"""
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message = {"NTP_ON" if state else "NTP_OFF": 0}
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reply = {"result": "ntp client started" if state else "ntp client stopped"}
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result = await self._send(message, reply)
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return result
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async def set_date(self, date: datetime.datetime = datetime.datetime.today()):
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"""
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Sets current date
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By default, set to current date. Can be optionally passed datetime.datetime object
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"""
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message = {"SET_DATE": [date.year, date.month, date.day]}
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reply = {"result": "Date is set"}
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result = await self._send(message, reply)
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return result
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async def set_time(self, time: datetime.datetime = datetime.datetime.now()):
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"""
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Sets current time
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By default, set to current time. Can be optionally passed datetime.datetime object
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"""
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message = {"SET_TIME": [time.hour, time.minute]}
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reply = {"result": "time set"}
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result = await self._send(message, reply)
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return result
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async def set_datetime(self, date_time: datetime.datetime = datetime.datetime.now()):
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"""
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Convenience method to set both date and time
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"""
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result = await self.set_date(date_time)
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if result:
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result = await self.set_time(date_time)
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return result
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async def manual_dst(self, state: bool):
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"""
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Manually enables/disables daylight saving time
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"""
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message = {"MANUAL_DST": int(state)}
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reply = {"result": "Updated time"}
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result = await self._send(message, reply)
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return result
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async def set_dst(self, state: bool, region: str = None):
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"""
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Enables/disables automatic DST handling.
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By default it uses UK dates for turning DST on/off.
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Available options for region are UK, EU, NZ.
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"""
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message = {"DST_ON" if state else "DST_OFF": 0 if region is None else region}
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reply = {"result": "dst on" if state else "dst off"}
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valid_timezones = ["UK", "EU", "NZ"]
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if region not in valid_timezones:
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raise NeoHubUsageError(f'region must be in {valid_timezones}')
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result = await self._send(message, reply)
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return result
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async def identify(self):
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"""
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Flashes red LED light
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"""
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message = {"IDENTIFY": 0}
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reply = {"result": "flashing led"}
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result = await self._send(message, reply)
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return result
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async def get_live_data(self):
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"""
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Returns live data from hub and all devices
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"""
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message = {"GET_LIVE_DATA": 0}
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hub_data = await self._send(message)
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devices = hub_data.devices
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delattr(hub_data, "devices")
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thermostat_list = list(filter(lambda device: hasattr(device, 'THERMOSTAT') and device.THERMOSTAT, devices))
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timeclock_list = list(filter(lambda device: hasattr(device, 'TIMECLOCK') and device.TIMECLOCK, devices))
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thermostats = []
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timeclocks = []
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for thermostat in thermostat_list:
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thermostats.append(NeoStat(self, thermostat))
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for timeclock in timeclock_list:
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timeclocks.append(NeoStat(self, timeclock))
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devices = {}
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devices['thermostats'] = thermostats
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devices['timeclocks'] = timeclocks
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return hub_data, devices
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async def permit_join(self, name, timeout_s: int = 120):
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"""
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Permit new thermostat to join network
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name: new zone will be added with this name
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timeout: duration of discovery mode in seconds
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To actually join network you need to select 01
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from the thermostat's setup menu.
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"""
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message = {"PERMIT_JOIN": [timeout_s, name]}
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reply = {"result": "network allows joining"}
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result = await self._send(message, reply)
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return result
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async def set_lock(self, pin: int, devices: [NeoStat]):
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"""
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PIN locks thermostats
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PIN is a four digit number
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"""
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try:
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if pin < 0 or pin > 9999:
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return False
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except TypeError:
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raise NeoHubUsageError('pin must be a number')
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pins = []
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for x in range(4):
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pins.append(pin % 10)
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pin = pin // 10
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pins.reverse()
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names = self._devices_to_names(devices)
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message = {"LOCK": [pins, names]}
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reply = {"result": "locked"}
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result = await self._send(message, reply)
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return result
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async def unlock(self, devices: [NeoStat]):
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"""
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Unlocks PIN locked thermostats
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"""
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names = self._devices_to_names(devices)
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message = {"UNLOCK": names}
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reply = {"result": "unlocked"}
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result = await self._send(message, reply)
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return result
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async def set_frost(self, state: bool, devices: [NeoStat]):
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"""
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Enables or disables Frost mode
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"""
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names = self._devices_to_names(devices)
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message = {"FROST_ON" if state else "FROST_OFF": names}
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reply = {"result": "frost on" if state else "frost off"}
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result = await self._send(message, reply)
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return result
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async def set_cool_temp(self, temperature: int, devices: [NeoStat]):
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"""
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Sets the thermostat's cooling temperature i.e. the temperature that will
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trigger the thermostat if exceeded. Note that this is only supported on
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the HC (Heating/Cooling) thermostats.
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The temperature will be reset once next comfort level is reached
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"""
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names = self._devices_to_names(devices)
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message = {"SET_COOL_TEMP": [temperature, names]}
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reply = {"result": "temperature was set"}
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result = await self._send(message, reply)
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return result
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async def set_target_temperature(self, temperature: int, devices: [NeoStat]):
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"""
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Sets the thermostat's temperature
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The temperature will be reset once next comfort level is reached
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"""
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names = self._devices_to_names(devices)
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message = {"SET_TEMP": [temperature, names]}
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reply = {"result": "temperature was set"}
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result = await self._send(message, reply)
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return result
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async def set_diff(self, switching_differential: int, devices: [NeoStat]):
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"""
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Sets the thermostat's switching differential
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-1: Undocumented option. Seems to set differential to 204.
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0: 0.5 degrees
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1: 1 degree
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2: 2 degrees
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3: 3 degrees
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"""
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names = self._devices_to_names(devices)
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message = {"SET_DIFF": [switching_differential, names]}
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reply = {"result": "switching differential was set"}
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result = await self._send(message, reply)
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return result
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async def rate_of_change(self, devices: [NeoStat]):
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"""
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Returns time in minutes required to change temperature by 1 degree
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"""
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names = self._devices_to_names(devices)
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message = {"VIEW_ROC": names}
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result = await self._send(message)
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return result.__dict__
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async def set_timer(self, state: bool, devices: [NeoStat]):
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"""
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Turns the output of timeclock on or off
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This function works only with NeoPlugs and does not work on
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NeoStats that are in timeclock mode.
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"""
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names = self._devices_to_names(devices)
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message = {"TIMER_ON" if state else "TIMER_OFF": names}
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reply = {"result": "timers on" if state else "timers off"}
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result = await self._send(message, reply)
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return result
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async def set_timer_hold(self, state: bool, minutes: int, devices: [NeoStat]):
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"""
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Turns the output of timeclock on or off for certain duration
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This function works with NeoStats in timeclock mode
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"""
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names = self._devices_to_names(devices)
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message = {"TIMER_HOLD_ON" if state else "TIMER_HOLD_OFF": [minutes, names]}
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reply = {"result": "timer hold on" if state else "timer hold off"}
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result = await self._send(message, reply)
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return result
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