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# Copyright (C) 2023 Suchinton Chakravarty
# Copyright (C) 2024 Konsulko Group
#
# SPDX-License-Identifier: Apache-2.0
import logging
from PyQt6.QtCore import QThread
from PyQt6.QtCore import pyqtSignal
from . import Kuksa_Instance as kuksa_instance
import threading
class KuksaClient(QThread):
"""
A class to handle sending values to Kuksa.
Attributes:
-----------
stop_flag : bool
A flag to stop the thread.
kuksa : kuksa_instance.KuksaClientSingleton.instance()
An instance of the Kuksa client.
client : kuksa_instance.KuksaClientSingleton.instance().client
A client object to interact with the Kuksa server.
"""
sending_values = pyqtSignal()
finished_sending_values = pyqtSignal()
def __init__(self, parent=None):
"""
Constructs all the necessary attributes for the FeedKuksa object.
Parameters:
-----------
parent : QObject
The parent object of the FeedKuksa object.
"""
QThread.__init__(self, parent)
self.stop_flag = False
self.kuksa = None
self.client = None
def run(self):
"""
Starts the thread and sets the instance of the Kuksa client.
"""
logging.info("Starting thread")
self.set_instance()
def stop(self):
"""
Stops the thread.
"""
self.stop_flag = True
logging.info("Stopping thread")
def set_instance(self):
"""
Sets the instance of the Kuksa client.
"""
self.kuksa = kuksa_instance.KuksaClientSingleton.instance()
self.client = self.kuksa.get_client()
def set(self, path=None, value=None, attribute=None):
"""
Sets VSS value.
Parameters:
-----------
path : str
The VSS signal path.
value : str
The value to be set.
attribute : str
The value attribute ("value" or "targetValue" (for actuators)).
Raises:
-------
Exception
If there is an error setting the value.
"""
if self.client is None:
#logging.error("Kuksa client is None, try reconnecting")
return
if not self.client.checkConnection():
logging.error("Client is not connected, try reconnecting")
threading.Thread(target=self.set_instance).start()
return
try:
if attribute is not None:
self.sending_values.emit()
self.client.setValue(path, value, attribute)
self.finished_sending_values.emit()
else:
self.sending_values.emit()
self.client.setValue(path, value)
self.finished_sending_values.emit()
except Exception as e:
logging.error(f"Error sending values to kuksa {e}")
threading.Thread(target=self.set_instance).start()
def setValues(self, values: dict[str, any] = None):
"""
Sets VSS values.
Parameters:
-----------
values : Dict[str, Any]
The values to be set.
Raises:
-------
Exception
If there is an error setting the values.
"""
if self.client is None:
logging.error("Kuksa client is None, try reconnecting")
return
if not self.client.checkConnection():
logging.error("Client is not connected, try reconnecting")
threading.Thread(target=self.set_instance).start()
return
try:
self.sending_values.emit()
self.client.setValues(values)
except Exception as e:
logging.error(f"Error sending values to kuksa {e}")
threading.Thread(target=self.set_instance).start()
def get(self, path=None):
"""
Gets VSS value.
Parameters:
-----------
path : str
The VSS signal path.
Returns:
--------
Any
The value of the VSS signal.
"""
if self.client is None:
logging.error("Kuksa client is None, try reconnecting")
return
if not self.client.checkConnection():
logging.error("Client is not connected, try reconnecting")
threading.Thread(target=self.set_instance).start()
return
try:
return self.client.getValue(path)
except Exception as e:
logging.error(f"Error getting value from kuksa {e}")
threading.Thread(target=self.set_instance).start()
return None
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