#!/usr/bin/python3

from tkinter import *
from tkinter import ttk
from tkinter.ttk import *
from tkinter.font import Font
from tkinter import messagebox
import subprocess
import time
import os

# --- default ---
sub_file = "sub_default_dir.py"
chdir = "/home/pi/bin/app_menu/" # full path

# --- Listbox  selection
def select_selection():
    global a
    a = ""
    for i in lb.curselection():
        a = lb.get(i)
    if not a:
        messagebox.showinfo('menu', 'Select menu !')
        return
    else:
        subprocess.run(chdir + a + " &", shell=True)
    root.quit()


# label
def label_1():
    label = ttk.Label(frame0, text = sub_file, background=label_bg, foreground=label_fg)
    label.grid(row=0,column=1)

# quit
def quit_click():
    root.quit()

# --- main ---
if __name__ == '__main__':
    root = Tk()
    root.title('sub dir')

    # Font
    smallfont = Font(family="Helvetica",size=10)
    root.option_add("*Font", smallfont)

    # Frame as Widget Container
    frame0 = ttk.Frame(root, padding=0)
    frame0.grid()
    frame1 = ttk.Frame(root, padding=0)
    frame1.grid()
    frame2 = ttk.Frame(root, padding=5)
    frame2.grid()

    # label
    label_bg='#469290' # label color
    label_fg='#ffffff' # text  color
    label = ttk.Label(
        frame0,
        text = ' ' * 56, # length
        background=label_bg,
        foreground=label_fg)
    label.grid(row=0,column=1)
    # to label_1
    label_1()

    # Listbox (menu)
    os.chdir(chdir)
    menu = ("ls ")  # edit
    #menu = ("ls | grep sub.*dir")
    menu = (subprocess.Popen(menu, stdout=subprocess.PIPE, shell=True).communicate()[0]).decode('utf-8')
    v1 = StringVar(value=menu)
    lb = Listbox(frame1, listvariable=v1,width=26,height=10)
    lb.grid(row=0, column=0)

    # Scrollbar y
    scrollbar = ttk.Scrollbar(frame1, orient=VERTICAL, command=lb.yview)
    lb['yscrollcommand'] = scrollbar.set
    scrollbar.grid(row=0,column=1,sticky=(N,S))

    # Butoon color
    style = Style()
    style.configure('TButton', font=('Helvetica', 10), background='#A4DCBF')
    style.configure('R.TButton', font=('Helvetica', 10), background='#E6C0D4')
    style.configure('G.TButton', font=('Helvetica', 10), background='#A4DCBF')
    style.configure('B.TButton', font=('Helvetica', 10), background='#A2CCE7')
    style.configure('L.TButton', font=('Helvetica', 10), background='#C6C6C6')
    style.configure('Y.TButton', font=('Helvetica', 10), background='#FFEFD5')
    # Button frame2
    button = ttk.Button(frame2, text='RUN', width=12, style='TButton', command=select_selection)
    button.grid(row=0, column=0, columnspan=1)
    button = ttk.Button(frame2, text='EXIT', width=12, style='Y.TButton', command=quit_click)
    button.grid(row=0, column=1, columnspan=1)

    root.mainloop()