import os
from enum import Enum

from PyQt5 import QtWidgets, uic

from clusterview_ui import Ui_MainWindow

class Mode(Enum):
    """
    Class to make it easier to figure out what mode
    we are operating in when the OpenGL window is
    clicked
    """
    OFF = 0
    ADD = 1
    EDIT = 2
    DELETE = 3


class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    """
    A wrapper class for handling creating a window based
    on the `clusterview_ui.py` code generated from
    `clusterview.ui`.
    """

    __mode = Mode.OFF

    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.setupUi(self)

        # -------------------------------------
        # UI Handlers
        # -------------------------------------
        self.action_add_points.triggered.connect(self.__add_points)
        self.action_edit_points.triggered.connect(self.__edit_points)
        self.action_delete_points.triggered.connect(self.__delete_points)
        self.action_solve.triggered.connect(self.__solve_launcher)

    # TODO: These handlers should probably be broken out into classes
    #       Such as "GraphicsDrawer", etc that implements these functions
    #       in isolation so this file remains relatively clean aside from
    #       the UI hooks to the functions above.
    def __add_points(self):
        self.__mode = Mode.ADD
        print("ADDING POINT MODE ENABLED!")

    def __edit_points(self):
        self.__mode = Mode.EDIT
        print("EDITING POINT MODE ENABLED!")

    def __delete_points(self):
        self.__mode = Mode.DELETE
        print("DELETE POINT MODE ENABLED!")

    def __solve_launcher(self):
        """
        Launched the solve menu. This function will call into a subclass
        of the solve dialog widget from the UI.

        TODO: Write the subclass once you know the parameters for the
              solve window.
        """
        print("LAUNCHING SOLVE DIALOG...")