"""
    The TD Op Mode ui loader
"""
# Python
import os

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

# parent
from engine.dynamicloader   import DynamicLoader

# plugin specific
from leahi_dialin.common.td_defs  import TDOpModes
from leahi_dialin.common.td_defs  import TDStandbyStates

# hd Simulator
from leahi_dialin.ui.td_messaging import TD_Messaging


class Loader(DynamicLoader):
    """
    The TD Op Mode 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.tbReset    = self.find_widget(QtWidgets.QToolButton    , 'tbReset'     )
        self.tbSend     = self.find_widget(QtWidgets.QToolButton    , 'tbSend'      )
        self.tblOpMode  = self.find_widget(QtWidgets.QTableWidget   , 'tblOpMode'   )
        self.tblSubMode = self.find_widget(QtWidgets.QTableWidget   , 'tblSubMode'  )

    def _init_connections(self):
        """
        initializes the widgets connections
        :return: none
        """
        self.tbReset.clicked.connect(self._init_widgets)
        self.tbSend.clicked.connect(self.do_treatment_states)
        # self.tblOpMode.currentCellChanged.connect(self.do_treatment_states)
        # self.tblSubMode.currentCellChanged.connect(self.do_treatment_states)

    @Slot()
    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.tblOpMode.setCurrentCell(TDOpModes.MODE_INIT.value, 0)
        self.tblOpMode.horizontalHeaderItem(0).setTextAlignment(QtCore.Qt.AlignLeft)
        self.tblSubMode.setCurrentCell(TDStandbyStates.STANDBY_START_STATE.value, 0)
        self.tblSubMode.horizontalHeaderItem(0).setTextAlignment(QtCore.Qt.AlignLeft)

    @Slot()
    def do_treatment_states(self):
        """
        the slot for state change
        :return: none
        """
        op_mode = int(self.tblOpMode.verticalHeaderItem(self.tblOpMode.currentRow()).text())
        sub_mode = int(self.tblSubMode.verticalHeaderItem(self.tblSubMode.currentRow()).text())
        self.td_interface.td_operation_mode(
            op_mode,
            sub_mode
        )