import os
import subprocess
from tkinter import *

##This application is written by Umut Can Alaçam, you can change and improve it then you can share it!


user = os.getuid();
if user != 0:
    print("You have to run this application as root! Try 'sudo su' command.");
    exit();

fo = open("cache.abs", mode="r+")
fo.seek(0, 0)
cache = fo.read().splitlines()
fo.close()
netlist = os.listdir('/sys/class/net/')
print(cache)

# pencere
pencere = Tk();
pencere.title("Create AP GUI")
net1 = StringVar()
net1.set(netlist[0])
net2 = StringVar()
net2.set(netlist[0])
pencere.columnconfigure(2, weight=1)
pencere.rowconfigure(4, weight=1)


def savechanges():
    global fo
    fo = open("cache.abs", mode="w")

    try:
        fo.write(entryssid.get()+"\n"+entrypass.get())
        print("Cache file updated!")
    except:
        print("ERROR: Couldn't write cache file!")
        pass;


def starthotspot():
    command = "sudo create_ap " + net1.get() + ' ' + net2.get() + " " + entryssid.get() + " " + entrypass.get();
    print("Process started...\n\n");
    savechanges();
    subprocess.call(command, shell=True);
    pencere.update();


labelfrom = Label(text="Source:", width="20", padx=10, pady=10);
listfrom = OptionMenu(pencere, net1, *netlist);
listto = OptionMenu(pencere, net2, *netlist);
listfrom.config(width=15);
listto.config(width=15);
labelstatus = Label(text="Hotspot is not working", padx=10, pady=10);
labelto = Label(text="Share via:", padx=10, pady=10);
entryssidlabel = Label(text="SSID:", padx=10, pady=10);
entrypasslabel = Label(text="Password:", padx=10, pady=10);
entrypass = Entry();
entryssid = Entry();
buttonstart = Button(text="Start", command=starthotspot);
buttonstart.config(width=25)

# GRID

labelfrom.grid(row=0, column=0)
listfrom.grid(row=0, column=1)
labelto.grid(row=1, column=0)
listto.grid(row=1, column=1)
entryssidlabel.grid(row=2, column=0, ipady=5)
entrypasslabel.grid(row=3, column=0, ipady=5)
entrypass.grid(row=3, column=1)
entryssid.grid(row=2, column=1)
buttonstart.grid(row=4, columnspan=3)

# INSERT
try:
    entryssid.insert(0, cache[0])
    entrypass.insert(0, cache[1])
except:
    print("Cannot read cache!")
mainloop()