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from tkinter import *

class gui:

        def __init__(self):
                global value

        #Buttonmethods
        def __eingabeBtnClick(self):
                self.ipAdresseEingabe = self.ipAdresseEntry.get()
                self.netzmaskeEingabe = self.netzmaskeEntry.get()
                adressKlasse(self.ipAdresseEingabe)

        def __löschenBtnClick(self):
                self.ipAdresseEntry.delete(0, 'end')
                self.netzmaskeEntry.delete(0, 'end')

        def __erstellungButtons(self):
                #Create Button
                self.eingabeButton = Button(self.root, text='Eingabe', bg='#F0F8FF', font=('arial', 12, 'normal'), command=self.__eingabeBtnClick)
                self.eingabeButton.place(x=417, y=14)

                self.löschenButton = Button(self.root, text='Löschen', bg='#F0F8FF', font=('arial', 12, 'normal'), command=self.__löschenBtnClick)
                self.löschenButton.place(x=417, y=64)

        def __erstellungEntrys(self):
                #Create Inputbox
                self.ipAdresseEntry = Entry(self.root, font=('arial', 12, 'normal'))
                self.ipAdresseEntry.place(x=200, y=19)

                self.netzmaskeEntry = Entry(self.root, font=('arial', 12, 'normal'))
                self.netzmaskeEntry.place(x=200, y=69)

        def __erstellungLabels(self):
                #Create Label
                self.ipAdresseLabel = Label(self.root, text='IPv4-Adresse:', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.ipAdresseLabel.place(x=50, y=19)

                self.netzmaskeLabel = Label(self.root, text='Netzmaske:', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.netzmaskeLabel.place(x=50, y=69)

                self.strichLabel = Label(self.root, text='_____________________________________________________________', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.strichLabel.place(x=0, y=96)

                self.adressKlasseHolderLabel = Label(self.root, text='Adressklasse:', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.adressKlasseHolderLabel.place(x=50, y=139)

                self.netzwerkAdresseHolderLabel = Label(self.root, text='Netzwerkadresse:', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.netzwerkAdresseHolderLabel.place(x=50, y=189)

                self.broadcastAdresseHolderLabel = Label(self.root, text='Broadcastadresse:', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.broadcastAdresseHolderLabel.place(x=50, y=239)

                self.adressKlasseLabel = Label(self.root, text='Y', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.adressKlasseLabel.place(x=200, y=139)

                self.netzwerkAdresseLabel = Label(self.root, text='0.0.0.0', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.netzwerkAdresseLabel.place(x=200, y=189)

                self.broadcastAdresseLabel = Label(self.root, text='0.0.0.0', background='#F0F8FF', font=('arial', 12, 'normal'))
                self.broadcastAdresseLabel.place(x=200, y=239)

        def setAdressKlasseLabel(self, v):
                self.adressKlasseLabel['text']= v
                return

        def erstellungGUI(self):
                self.root = Tk()

                #Create mainwindow
                self.root.geometry('540x320')
                self.root.configure(background='#F0F8FF')
                self.root.title('IP-Calculator')

                self.__erstellungButtons()
                self.__erstellungEntrys()
                self.__erstellungLabels()

                self.root.mainloop()



def adressKlasse(ipAdresse):
    oktett1List = ipAdresse.split('.', 1)
    oktett1 = int(oktett1List[0])

#testcase
    if oktett1 > 0 and oktett1 < 128:
        gui.setAdressKlasseLabel(gui, "A")

    elif oktett1 >= 128 and oktett1 < 192:
        gui.setAdressKlasseLabel(gui, "B")

    elif oktett1 >= 192 and oktett1 < 224:
        gui.setAdressKlasseLabel(gui, "C")

    elif oktett1 >= 224 and oktett1 < 240:
        gui.setAdressKlasseLabel(gui, "D")

    elif oktett1 >= 240 and oktett1 < 256:
        gui.setAdressKlasseLabel(gui, "E")

    else:
        #''''''''''''''''''''''''''''''''''''''
        #WINDOWERROR
        #''''''''''''''''''''''''''''''''''''''
        pass


if __name__ == '__main__':
        window = gui()
        window.erstellungGUI()