"""
    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.dsbBeforePressureRegulator     = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbBeforePressureRegulator'      )
        self.dsbAfterPressureRegulator      = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbAfterPressureRegulator'       )
        self.dsbBeforeInletConductivity     = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbBeforeInletConductivity'      )
        self.dsbBeforeROFilter              = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbBeforeROFilter'               )
        self.dsbAfterROFilter               = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbAfterROFilter'                )
        self.dsbBeforeROPump                = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbBeforeROPump'                 )
        self.dsbROConcentrate               = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbROConcentrate'                )
        self.dsbROConcentrateDrop           = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbROConcentrateDrop'            )
        self.dsbDrainDrop                   = self.find_widget(QtWidgets.QDoubleSpinBox , 'dsbDrainDrop'                    )

    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.dsbBeforePressureRegulator   .setValue(0)
        self.dsbAfterPressureRegulator    .setValue(0)
        self.dsbBeforeInletConductivity   .setValue(0)
        self.dsbBeforeROFilter            .setValue(0)
        self.dsbAfterROFilter             .setValue(0)
        self.dsbBeforeROPump              .setValue(0)
        self.dsbROConcentrate             .setValue(0)
        self.dsbROConcentrateDrop         .setValue(0)
        self.dsbDrainDrop                 .setValue(0)
    @Slot()
    def do_fp_pressure(self):
        """
        the slot for FP pressure change
        :return: none
        """
        
        m1Pressure      = self.dsbBeforePressureRegulator    .value()
        m3Pressure      = self.dsbAfterPressureRegulator     .value()
        p8Pressure      = self.dsbBeforeInletConductivity    .value()
        p13Pressure     = self.dsbBeforeROFilter             .value()
        p17Pressure     = self.dsbAfterROFilter              .value()
        x1Pressure      = self.dsbBeforeROPump               .value()
        x2Pressure      = self.dsbROConcentrate              .value()
        x3Pressure      = self.dsbROConcentrateDrop          .value()
        x4Pressure      = self.dsbDrainDrop                  .value()

        self.fp_interface.fp_pressure(
           m1Pressure  , 
           m3Pressure  ,
           p8Pressure  ,
           p13Pressure ,
           p17Pressure ,
           x1Pressure  ,
           x2Pressure  ,
           x3Pressure  ,
           x4Pressure                  
        )