"""
    The HD Op Mode ui loader
"""
# Python
import os
# Qt
from PySide2 import QtCore, QtWidgets
from PySide2.QtCore import Slot
# parent
from simulator.dynamicloader import DynamicLoader
# hd Simulator
from simulator.interface import SimulationInterface
# plugin specific
from dialin.common.hd_defs import HDOpModes
from dialin.common.hd_defs import HD_Standby_States


class Loader(DynamicLoader):
    """
    The HD Op Mode ui loader
    """
    tbReset: QtWidgets.QToolButton
    tbSend: QtWidgets.QToolButton
    tblOpMode: QtWidgets.QTableWidget
    tblSubMode: QtWidgets.QTableWidget

    def __init__(self, interface: SimulationInterface):
        super().__init__(os.path.dirname(__file__), interface)

    def _init_loader(self):
        """
        finds and creates widgets
        :return: none
        """
        self.tbReset = self.find_tool_button('tbReset')
        self.tbSend = self.find_tool_button('tbSend')
        self.tblOpMode = self.find_table_widget('tblOpMode')
        self.tblSubMode = self.find_table_widget('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(HDOpModes.MODE_INIT.value, 0)
        self.tblOpMode.horizontalHeaderItem(0).setTextAlignment(QtCore.Qt.AlignLeft)
        self.tblSubMode.setCurrentCell(HD_Standby_States.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.interface.hd.cmd_send_hd_operation_mode(
            op_mode,
            sub_mode
        )