"""
    The Vitals ui loader
"""
# Python
import os
import can
import struct

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

# parent
from engine.dynamicloader   import DynamicLoader

# plugin specific
from leahi_dialin.common.msg_defs import MsgIds
from leahi_dialin.protocols       import CAN

# hd Simulator
from leahi_dialin.ui.td_messaging import TD_Messaging

class Loader(DynamicLoader):
    """
    The Vitals ui loader
    """

    def __init__(self):
        self.td_interface = TD_Messaging()
        self.can_interface = self.td_interface.can_interface
        super().__init__(os.path.dirname(__file__))


    def _init_loader(self):
        """
        finds and creates widgets
        :return: none
        """
        self.tbVitalsRspSend    = self.find_widget(QtWidgets.QToolButton        , 'tbVitalsRspSend'         )
        self.sbVitalsReason     = self.find_widget(QtWidgets.QSpinBox           , 'VitalsReasonSpinBox'     )
        self.tbVitalsSend       = self.find_widget(QtWidgets.QToolButton        , 'tbVitalsSend'            )
        self.sbSystolic         = self.find_widget(QtWidgets.QSpinBox           , 'SystolicSpinBox'         )
        self.sbDiastolic        = self.find_widget(QtWidgets.QSpinBox           , 'DiastolicSpinBox'        )
        self.sbHeartRate        = self.find_widget(QtWidgets.QSpinBox           , 'HeartRateSpinBox'        )

    def _init_connections(self):
        """
        initializes the widgets connections
        :return: none
        """
        self.tbVitalsRspSend.clicked     .connect(self.do_vitals_rsp    )
        self.tbVitalsSend   .clicked     .connect(self.do_vitals_data   )


    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.sbVitalsReason .setValue(0)
        self.sbSystolic     .setValue(120)
        self.sbDiastolic    .setValue(80)
        self.sbHeartRate    .setValue(100)


    @Slot()
    def do_vitals_rsp(self):
        self.td_interface.td_vitals_adjustment_response(self.sbVitalsReason.value())


    @Slot()
    def do_vitals_data(self):
        """
        the slot for Vitals Data
        :return: none
        """
        systolic    = self.sbSystolic   .value()
        diastolic   = self.sbDiastolic  .value()
        heartRate   = self.sbHeartRate  .value()

        self.td_interface.td_vitals(
            systolic    ,
            diastolic   ,
            heartRate      
        )