"""
    The FP pressure ui loader
"""
# Python
import os

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

# parent
from engine.dynamicloader   import DynamicLoader

# FP Simulator
from leahi_dialin.ui.fp_messaging import FP_Messaging


class Loader(DynamicLoader):
    """
    The FP pressure ui loader
    """

    def __init__(self):
        self.fp_interface = FP_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.dsbM3Pressure   = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbM3Pressure'                   )
        self.dsbP8Pressure   = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbP8Pressure'                   )
        self.dsbP13Pressure  = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbP13Pressure'                  )
        self.dsbP17Pressure  = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbP17Pressure'                  )
        self.dsbP46Pressure  = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbP46Pressure'                  ) 


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


    @Slot()
    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.dsbM3Pressure    .setValue(0)
        self.dsbP8Pressure    .setValue(0)
        self.dsbP13Pressure   .setValue(0)
        self.dsbP17Pressure   .setValue(0)
        self.dsbP46Pressure   .setValue(0)


    @Slot()
    def do_fp_pressure(self):
        """
        the slot for FP pressure change
        :return: none
        """
        m3Pressure      = self.dsbM3Pressure    .value()
        p8Pressure      = self.dsbP8Pressure    .value()
        p13Pressure     = self.dsbP13Pressure   .value()
        p17Pressure     = self.dsbP17Pressure   .value()
        p46Pressure     = self.dsbP46Pressure   .value()

        self.fp_interface.fp_pressure(
           m3Pressure  ,
           p8Pressure  ,
           p13Pressure ,
           p17Pressure ,
           p46Pressure                
        )