"""
    The Ultrafiltration ui loader
"""
import os

from PySide2 import QtWidgets
from PySide2.QtCore import Slot

from simulator.dynamicloader import DynamicLoader
from dialin.ui.hd_simulator import TXStates
from dialin.ui.hd_simulator import HDSimulator


class Loader(DynamicLoader):
    """
    The Ultrafiltration ui loader
    """
    tblSubMode: QtWidgets.QTableWidget
    tblUFStates: QtWidgets.QTableWidget
    tblSalineStates: QtWidgets.QTableWidget
    tblHeparinStates: QtWidgets.QTableWidget
    tblRinsebackStates: QtWidgets.QTableWidget
    tblRecirculateStates: QtWidgets.QTableWidget

    def __init__(self, hd_simulator: HDSimulator):
        super().__init__(os.path.dirname(__file__), hd_simulator)
        print(" ---------- ", self.hd_simulator)

    def _init_loader(self):
        """
        finds and creates widgets
        :return: none
        """
        self.tblSubMode = self.find_table_widget('tblSubMode')
        self.tblUFStates = self.find_table_widget('tblUFStates')
        self.tblSalineStates = self.find_table_widget('tblSalineStates')
        self.tblHeparinStates = self.find_table_widget('tblHeparinStates')
        self.tblRinsebackStates = self.find_table_widget('tblRinsebackStates')
        self.tblRecirculateStates = self.find_table_widget('tblRecirculateStates')

    def _init_connections(self):
        """
        initializes the widgets connections
        :return: none
        """
        self.tblSubMode.cellClicked.connect(self.do_treatment_states)
        self.tblUFStates.cellClicked.connect(self.do_treatment_states)
        self.tblSalineStates.cellClicked.connect(self.do_treatment_states)
        self.tblHeparinStates.cellClicked.connect(self.do_treatment_states)
        self.tblRinsebackStates.cellClicked.connect(self.do_treatment_states)
        self.tblRecirculateStates.cellClicked.connect(self.do_treatment_states)
        # apply/send the initial states
        # self.do_treatment_states()

    def _init_widgets(self):
        """
        initializes the widgets' properties
        :return: none
        """
        self.tblSubMode.setCurrentCell(TXStates.TREATMENT_DIALYSIS_STATE, 0)
        self.tblUFStates.setCurrentCell(TXStates.UF_OFF_STATE, 0)
        self.tblSalineStates.setCurrentCell(TXStates.SALINE_BOLUS_STATE_IDLE, 0)
        self.tblHeparinStates.setCurrentCell(TXStates.HEPARIN_STATE_OFF, 0)
        self.tblRinsebackStates.setCurrentCell(TXStates.HEPARIN_STATE_OFF, 0)
        self.tblRecirculateStates.setCurrentCell(TXStates.TREATMENT_RECIRC_STOPPED_STATE, 0)

    @Slot()
    def do_treatment_states(self):
        """
        the slot for saline bolus state change
        :return: none
        """
        sub_mode = int(self.tblSubMode.verticalHeaderItem(self.tblSubMode.currentRow()).text())
        uf_state = int(self.tblUFStates.verticalHeaderItem(self.tblUFStates.currentRow()).text())
        saline = int(self.tblSalineStates.verticalHeaderItem(self.tblSalineStates.currentRow()).text())
        heparin = int(self.tblHeparinStates.verticalHeaderItem(self.tblHeparinStates.currentRow()).text())
        rinseback = int(self.tblHeparinStates.verticalHeaderItem(self.tblRinsebackStates.currentRow()).text())
        recirculate = int(self.tblHeparinStates.verticalHeaderItem(self.tblRecirculateStates.currentRow()).text())
        self.hd_simulator.cmd_set_treatment_states_data(sub_mode, uf_state, saline, heparin, rinseback, recirculate)