A python script that notifies you whenever there is a power cut ⚡

power_down_notifier.pyw

from win10toast import ToastNotifier
from ping3 import ping
import time
import os

#Defining variables
device_ip_address = "192.168.0.101" #IP address of the device to be pinged
notification_delay = 120.0 #Frequency of the offline notification in seconds
loop_delay = 1.0 #Frequency of device status chekcing in seconds
was_offline = False
last_notified_time = 0.0

notification_title_online = "Power Restored"
notification_title_offline = "Power Down"
notification_description_online = "Your device is now running on the mains power supply"
notification_description_offline = "Your device is now running on the backup power supply"
notification_icon_online = "path\to\power_restored.ico"
notification_icon_offline = "path\to\power_down.ico"
notification_duration_seconds = 10

#Initializing objects
toaster = ToastNotifier()

#Function to check if device is online
def deviceOnline():
    return not (ping(device_ip_address) == None)

#Function to get current time in seconds
def currentTimeInSeconds():
    return time.time()*1.0

while True:
    if deviceOnline():
        print(notification_description_online)

        #Resetting last played time to get alert ASAP
        last_notified_time = 0.0

        #Marking status as online and sending online alert if the device was previously offline
        if was_offline:
            was_offline = False
            toaster.show_toast(notification_title_online, notification_description_online, notification_icon_online, notification_duration_seconds)

        #Repeating the loop after the time defined in loop_delay
        time.sleep(loop_delay)    

    else:
        print(notification_description_offline)

        #Marking status as offline and sending offline alert
        was_offline = True

        #Resending notification only after the time defined in notification_delay
        if((currentTimeInSeconds() - last_notified_time) >= notification_delay):
            last_notified_time = currentTimeInSeconds()
            toaster.show_toast(notification_title_offline, notification_description_offline, notification_icon_offline, notification_duration_seconds)

        #Repeating the loop after the time defined in loop_delay
        time.sleep(loop_delay)