"""
    The DD Levels ui loader
"""
# Python
import os

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

# parent
from engine.dynamicloader   import DynamicLoader

# dd Simulator
from leahi_dialin.ui.dd_messaging import DD_Messaging


class Loader(DynamicLoader):
    """
    The DD Levels ui loader
    """

    def __init__(self):
        self.dd_interface = DD_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.sbFloaterLevel             = self.find_widget(QtWidgets.QSpinBox       , 'sbFloaterLevel'          )
        self.sbBicarbLevel              = self.find_widget(QtWidgets.QSpinBox       , 'sbBicarbLevel'           )
        self.sbSpentDialysateLevel      = self.find_widget(QtWidgets.QSpinBox       , 'sbSpentDialysateLevel'   )

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

    @Slot()
    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.sbFloaterLevel         .setValue(0)
        self.sbBicarbLevel          .setValue(0)
        self.sbSpentDialysateLevel  .setValue(0)

    @Slot()
    def do_dd_level_sensors(self):
        """
        the slot for dd level sensor change
        :return: none
        """
        d6Level  = self.sbFloaterLevel        .value()
        d63Level = self.sbBicarbLevel         .value()
        d46Level = self.sbSpentDialysateLevel .value()

        self.dd_interface.dd_levels(
            d6Level  ,
            d63Level ,
            d46Level 
        )