sredfern/hassio-bluetti-bt
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code cleanup

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Patrick762 committed 2024-02-18 16:49:27 +01:00
1 parent a50deaae37
commit 842f133cd4
4 files changed
+16 -191
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custom_components/bluetti_bt/coordinator.py
+13 -188
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@@ -1,14 +1,11 @@
"""Coordinator for Bluetti integration."""
from __future__ import annotations
from typing import cast
import asyncio
from datetime import timedelta
import logging
import async_timeout
from bleak import BleakClient, BleakError
from bleak import BleakClient
from homeassistant.components import bluetooth
from homeassistant.core import HomeAssistant
@@ -16,12 +13,9 @@ from homeassistant.helpers.update_coordinator import (
DataUpdateCoordinator,
)
from .bluetti_bt_lib.const import NOTIFY_UUID, RESPONSE_TIMEOUT, WRITE_UUID
from .bluetti_bt_lib.exceptions import BadConnectionError, ModbusError, ParseError
from .bluetti_bt_lib.utils.commands import ReadHoldingRegisters
from .bluetti_bt_lib.bluetooth.device_reader import DeviceReader
from .bluetti_bt_lib.utils.device_builder import build_device
from .const import DATA_POLLING_RUNNING, DOMAIN
from .utils import mac_loggable
_LOGGER = logging.getLogger(__name__)
@@ -47,15 +41,6 @@ class PollingCoordinator(DataUpdateCoordinator):
name="Bluetti polling coordinator",
update_interval=timedelta(seconds=polling_interval),
)
self._address = address
self.has_notifier = False
self.notify_future = None
self.current_command = None
self.notify_response = bytearray()
self.bluetti_device = build_device(address, device_name)
self.persistent_conn = persistent_conn
self.polling_timeout = polling_timeout
self.max_retries = max_retries
# Create client
self.logger.debug("Creating client")
@@ -63,10 +48,17 @@ class PollingCoordinator(DataUpdateCoordinator):
if device is None:
self.logger.error("Device %s not available", mac_loggable(address))
return None
self.client = BleakClient(device)
client = BleakClient(device)
bluetti_device = build_device(address, device_name)
# polling mutex to guard against switches
self.polling_lock = asyncio.Lock()
self.reader = DeviceReader(
client,
bluetti_device,
self.hass.loop.create_future,
persistent_conn=persistent_conn,
polling_timeout=polling_timeout,
max_retries=max_retries,
)
async def _async_update_data(self):
"""Fetch data from API endpoint.
@@ -74,172 +66,5 @@ class PollingCoordinator(DataUpdateCoordinator):
This is the place to pre-process the data to lookup tables
so entities can quickly look up their data.
"""
self.hass.data[DOMAIN][self.config_entry.entry_id][DATA_POLLING_RUNNING] = True
self.logger.debug("Polling data")
if self.bluetti_device is None:
self.logger.error("Device type for %s not found", mac_loggable(self._address))
return None
parsed_data: dict = {}
async with self.polling_lock:
try:
async with async_timeout.timeout(self.polling_timeout):
# Reconnect if not connected
for attempt in range(1, self.max_retries + 1):
try:
if not self.client.is_connected:
await self.client.connect()
break
except Exception as e:
if attempt == self.max_retries or attempt == 1:
raise # pass exception on max_retries attempt
else:
self.logger.warning(f"Connect unsucessful (attempt {attempt}): {e}. Retrying...")
await asyncio.sleep(2)
# Attach notifier if needed
if not self.has_notifier:
await self.client.start_notify(
NOTIFY_UUID, self._notification_handler
)
self.has_notifier = True
for command in self.bluetti_device.polling_commands:
try:
body = command.parse_response(
await self.async_send_command(command)
)
self.logger.debug("Raw data: %s", body)
parsed = self.bluetti_device.parse(
command.starting_address, body
)
self.logger.debug("Parsed data: %s", parsed)
parsed_data.update(parsed)
except ParseError:
self.logger.warning("Got a parse exception...")
if len(self.bluetti_device.pack_polling_commands) > 0:
self.logger.debug("Polling battery packs")
# pack polling
for pack in range (1, self.bluetti_device.pack_num_max + 1):
# Set current pack number
await self.async_send_command(
self.bluetti_device.build_setter_command('pack_num', pack)
)
# We need to wait after switching packs for the data to be available
await asyncio.sleep(5)
for command in self.bluetti_device.pack_polling_commands:
# Request & parse result for each pack
try:
body = command.parse_response(
await self.async_send_command(command)
)
parsed = self.bluetti_device.parse(
command.starting_address, body
)
self.logger.debug("Parsed data: %s", parsed)
pack_number = parsed.get('pack_num')
if not isinstance(pack_number, int) or pack_number != pack:
self.logger.debug("Parsed pack_num(%s) does not match expected '%s'", pack_number, pack)
continue
for key, value in parsed.items():
parsed_data.update({key+str(pack):value})
except ParseError:
self.logger.warning("Got a parse exception...")
except TimeoutError:
self.logger.warning("Polling timed out for device %s", mac_loggable(self._address))
return None
except BleakError as err:
self.logger.warning("Bleak error: %s", err)
return None
finally:
# Disconnect if connection not persistant
if not self.persistent_conn:
if self.has_notifier:
await self.client.stop_notify(NOTIFY_UUID)
self.has_notifier = False
await self.client.disconnect()
self.hass.data[DOMAIN][self.config_entry.entry_id][DATA_POLLING_RUNNING] = False
# Pass data back to sensors
return parsed_data
async def async_send_command(self, command: ReadHoldingRegisters) -> bytes:
"""Send command and return response"""
try:
# Prepare to make request
self.current_command = command
self.notify_future = self.hass.loop.create_future()
self.notify_response = bytearray()
# Make request
self.logger.debug("Requesting %s", command)
await self.client.write_gatt_char(
WRITE_UUID, bytes(command)
)
# Wait for response
res = await asyncio.wait_for(
self.notify_future, timeout=RESPONSE_TIMEOUT
)
# Process data
self.logger.debug("Got %s bytes", len(res))
return cast(bytes, res)
except TimeoutError:
self.logger.debug(
"Polling timed out (address: %s)", mac_loggable(self._address)
)
except ModbusError as err:
self.logger.warning(
"Got an invalid request error for %s: %s",
command,
err,
)
except (BadConnectionError, BleakError) as err:
self.logger.warning(
"Needed to disconnect due to error: %s (This can also be the case if you used device controls)", err
)
# caught an exception, return empty bytes object
return bytes()
def _notification_handler(self, _sender: int, data: bytearray):
"""Handle bt data."""
# Ignore notifications we don't expect
if not self.notify_future or self.notify_future.done():
_LOGGER.warning("Unexpected notification")
return
# If something went wrong, we might get weird data.
if data == b"AT+NAME?\r" or data == b"AT+ADV?\r":
err = BadConnectionError("Got AT+ notification")
self.notify_future.set_exception(err)
return
# Save data
self.notify_response.extend(data)
if len(self.notify_response) == self.current_command.response_size():
if self.current_command.is_valid_response(self.notify_response):
self.notify_future.set_result(self.notify_response)
else:
self.notify_future.set_exception(ParseError("Failed checksum"))
elif self.current_command.is_exception_response(self.notify_response):
# We got a MODBUS command exception
msg = f"MODBUS Exception {self.current_command}: {self.notify_response[2]}"
self.notify_future.set_exception(ModbusError(msg))
return await self.reader.read_data()