"""
    The TD Ejector ui loader
"""
# Python
import os

# Qt
from PySide2                import QtCore, QtWidgets
from PySide2.QtCore         import Slot

# parent
from engine.dynamicloader   import DynamicLoader

# hd Simulator
from leahi_dialin.ui.td_messaging import TD_Messaging


class Loader(DynamicLoader):
    """
    The TD Ejector ui loader
    """

    def __init__(self):
        self.td_interface = TD_Messaging()
        super().__init__(os.path.dirname(__file__))


    def _init_loader(self):
        """
        finds and creates widgets
        :return: none
        """
        self.tbSend             = self.find_widget(QtWidgets.QToolButton    , 'tbSend'                  )

        self.state              = self.find_widget(QtWidgets.QSpinBox          , 'stateSpinBox'         )
        self.setSpeed           = self.find_widget(QtWidgets.QDoubleSpinBox    , 'setSpeedDoubleSpinBox')
        self.sbRetractOptSensor = self.find_widget(QtWidgets.QSpinBox          , 'sbRetractOptSensor'   )
        self.sbEngageOptSensor  = self.find_widget(QtWidgets.QSpinBox          , 'sbEngageOptSensor'    )


    def _init_connections(self):
        """
        initializes the widgets connections
        :return: none
        """
        self.tbSend.clicked.connect(self.do_ejector_data)

    @Slot()
    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.state.setValue(0)
        self.setSpeed.setValue(0)
        self.sbRetractOptSensor.setValue(0)
        self.sbEngageOptSensor.setValue(0)

    @Slot()
    def do_ejector_data(self):
        """
        the slot for ejector change
        :return: none
        """
        self.td_interface.td_ejector(
            self.state              .value()    ,
            self.setSpeed           .value()    ,
            self.sbRetractOptSensor .value()    ,
            self.sbEngageOptSensor  .value()    )