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# Contributed via : https://github.com/adarshkushwah/Network-Usage-Tracker

import os

import sys

import time

import threading

import subprocess

import tkinter

import tkinter.messagebox

def monitor(limit, unit):

check = "vnstat"

proc = subprocess.Popen(check, shell=True, stdout=subprocess.PIPE)

output = proc.communicate()

output = str(output)

# print output

l = []

for t in output.split():

try:

if t == "MiB" or t == "GiB":

l.append(t)

else:

l.append(float(t))

except ValueError:

pass

if unit == l[5] and limit < l[4]:

print("\nnetwork usage limit exceeded!\n")

top = tkinter.Tk()

def hello():

tkinter.messagebox.showinfo("Warning!",

"Network usage limit exceeded!!!!")

B1 = tkinter.Button(top, text="Warning", command=hello)

B1.pack()

top.mainloop()

arg = [limit, unit]

threading.Timer(60.0, monitor, arg).start()

def main():

if len(sys.argv) > 3 or len(sys.argv) < 3:

print(

'command usage: python3 bandwidth_py3.py <data usage in MiB or GiB>'

)

print('example: python3 bandwidth_py3.py 500 MiB')

print('or python3 bandwidth_py3.py 2 GiB')

exit(1)

else:

limit = float(sys.argv[1])

unit = str(sys.argv[2])

#callMonitor(limit, unit)

monitor(limit, unit)

if __name__ == "__main__":

main()