online_check.py

import os
import time
import threading
from datetime import datetime


def updateLoop():
    ip = "8.8.8.8"
    was_online = True
    down_timestamp = datetime.now()
    while True:
        now = datetime.now()
        timestamp = now.strftime("%d/%m/%Y %H:%M:%S")
        with open("results.txt", "a") as results_file:
            response = os.popen(f"ping {ip}").read()
            if "Received = 1" and "Approximate" in response:
                if was_online == False:
                    print(f"Time came back online: {timestamp}")
                    results_file.write(f"Time came back online: {timestamp} ")
                    results_file.write(
                        f"Time offline: {(datetime.now() - down_timestamp).total_seconds()}")
                was_online = True
            elif was_online == True and not "Received = 1" in response:
                print(f"Down {ip} Ping Unsuccessful")
                results_file.write(
                    f"Internet outage timestamp: {timestamp} pinging google.com" + "\n")
                was_online = False
                down_timestamp = datetime.now()
            time.sleep(5)


thread = threading.Thread(target=updateLoop)
thread.start()