# Zeiterfassung
# UI Definitionen

import tkinter as tk
import locale
locale.setlocale(locale.LC_ALL, '')

from time import strftime
from definitions import app_title, app_version

# Pinpad
def win_pinpad():

    def update_time():
        string_time = strftime('%A, der %d.%m.%Y - %H:%M:%S')
        nonlocal digital_clock
        digital_clock.config(text=string_time)
        digital_clock.after(1000, update_time)

    root = tk.Tk()
    root.title(app_title + " " + app_version)
    # Digital clock label configuration
    digital_clock = tk.Label(root)
    digital_clock.grid(row=0, column=0, columnspan=3, padx=10, pady=10)
    # Initial call to update_time function
    update_time()

    # Benutzernummer
    tk.Label(root, text="Benutzernummer:").grid(row=1, column=0)
    usernr = tk.Entry(root, width=10)
    usernr.grid(row=1,column=1)

   # Pinpad

    def buttonPress(key):

        nonlocal usernr
        if type(key) is int:
            if key < 10:
                usernr.insert('end', str(key))
        if key =="OK":
          print("OK pressed")
        if key == "<-":
            usernr.delete(usernr.index("end") - 1 )
        if len(usernr.get()) > 0:
            buttons["OK"].configure(state="active")
        else:
            buttons["OK"].configure(state="disabled")

    # Buttons definieren
    button_width = 5
    button_height = 2
    pinframe = tk.Frame(root)
    pinframe.grid(row=2, column=0, columnspan=3, padx=10, pady=10)
    buttons = { }

    keys = [
        [ 1, 2, 3],
        [ 4, 5, 6],
        [ 7, 8, 9],
        [ "<-", 0, "OK"]
    ]

    for y, row in enumerate(keys, 1):
        for x, key in enumerate(row):
            button = tk.Button(pinframe, width=button_width, height=button_height, text=key, command=lambda key=key: buttonPress(key))
            button.grid(row=y, column=x)
            buttons[key] = button

    buttons["OK"].configure(state="disabled")

    # Tkinter main loop

    root.mainloop()