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from .._payload import MqttPayload, MqttPayloadCustomField
from .._node import MqttNode, MqttModule
from typing import Optional
MODULE_NAME = 'MqttDiagnosticsModule'
class DiagnosticsFlags(MqttPayloadCustomField):
state: bool
config_changed_value_present: bool
config_changed: bool
@staticmethod
def unpack(flags: int):
# _logger.debug(f'StatFlags.unpack: flags={flags}')
state = flags & 0x1
ccvp = (flags >> 1) & 0x1
cc = (flags >> 2) & 0x1
# _logger.debug(f'StatFlags.unpack: state={state}')
return DiagnosticsFlags(state=(state == 1),
config_changed_value_present=(ccvp == 1),
config_changed=(cc == 1))
def __index__(self):
bits = 0
bits |= (int(self.state) & 0x1)
bits |= (int(self.config_changed_value_present) & 0x1) << 1
bits |= (int(self.config_changed) & 0x1) << 2
return bits
class InitialDiagnosticsPayload(MqttPayload):
FORMAT = '=IBbIB'
ip: int
fw_version: int
rssi: int
free_heap: int
flags: DiagnosticsFlags
class DiagnosticsPayload(MqttPayload):
FORMAT = '=bIB'
rssi: int
free_heap: int
flags: DiagnosticsFlags
class MqttDiagnosticsModule(MqttModule):
def on_connect(self, mqtt: MqttNode):
super().on_connect(mqtt)
for topic in ('diag', 'd1ag', 'stat', 'stat1'):
mqtt.subscribe_module(topic, self)
def handle_payload(self, mqtt: MqttNode, topic: str, payload: bytes) -> Optional[MqttPayload]:
message = None
if topic in ('stat', 'diag'):
message = DiagnosticsPayload.unpack(payload)
elif topic in ('stat1', 'd1ag'):
message = InitialDiagnosticsPayload.unpack(payload)
if message:
self._logger.debug(message)
return message
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