"""
    TD Param Ranges 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, MsgFieldPositions
from leahi_dialin.protocols       import CAN
from leahi_dialin.utils           import conversions

# td simulator
from leahi_dialin.ui.td_messaging import TD_Messaging

class Loader(DynamicLoader):
    """
    TD Param Ranges 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.tbReset        = self.find_widget(QtWidgets.QToolButton    , 'tbReset'             )
        self.tbSend         = self.find_widget(QtWidgets.QToolButton    , 'tbSend'              )

        self.tx_time_min    = self.find_widget(QtWidgets.QSpinBox       , 'TxTimeMinSpinBox'    )
        self.tx_time_max    = self.find_widget(QtWidgets.QSpinBox       , 'TxTimeMaxSpinBox'    )
        self.uf_volume_min  = self.find_widget(QtWidgets.QSpinBox       , 'UFVolumeMinSpinBox'  )
        self.uf_volume_max  = self.find_widget(QtWidgets.QSpinBox       , 'UFVolumeMaxSpinBox'  )
        self.dial_rate_min  = self.find_widget(QtWidgets.QSpinBox       , 'DialRateMinSpinBox'  )
        self.dial_rate_max  = self.find_widget(QtWidgets.QSpinBox       , 'DialRateMaxSpinBox'  )

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

        self.tx_time_min    .valueChanged.connect(self.do_param_ranges_data)
        self.tx_time_max    .valueChanged.connect(self.do_param_ranges_data)
        self.uf_volume_min  .valueChanged.connect(self.do_param_ranges_data)
        self.uf_volume_max  .valueChanged.connect(self.do_param_ranges_data)
        self.dial_rate_min  .valueChanged.connect(self.do_param_ranges_data)
        self.dial_rate_max  .valueChanged.connect(self.do_param_ranges_data)

    @Slot()
    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.tx_time_min    .setValue(0)
        self.tx_time_max    .setValue(60)
        self.uf_volume_min  .setValue(0)
        self.uf_volume_max  .setValue(2000)
        self.dial_rate_min  .setValue(0)
        self.dial_rate_max  .setValue(0)

    @Slot()
    def do_param_ranges_data(self):
        """
        the slot for treatment param ranges Data
        :return: none
        """
        tx_time_min_s       = self.tx_time_min.value()
        tx_time_max_s       = self.tx_time_max.value()
        uf_volume_min_mL    = self.uf_volume_min.value()
        uf_volume_max_mL    = self.uf_volume_max.value()
        dial_rate_min_mLH   = self.dial_rate_min.value()
        dial_rate_max_mLH   = self.dial_rate_max.value()

        self.td_interface.td_param_ranges(
            tx_time_min_s       ,
            tx_time_max_s       ,
            uf_volume_min_mL    ,
            uf_volume_max_mL    ,
            dial_rate_min_mLH   ,
            dial_rate_max_mLH
        )