Auto connecting to VPN on MacOS

VPN.sh

#!/bin/sh

# VPN.sh 

###### SETUP #######
# You need to setup and be able to connect to you VPN at least once

# Change these variables for your setup
# You can export your VPN_PWD into .bash_profile (.zprofile if you are using zsh) so it won't be exposed in the command
# In .bash_profile or .zprofile insert lines 
	# EXPORT AUTO_VPN=<YOUR VPN NAME>
	# EXPORT AUTO_VPN_PWD=<YOUR PASSWORD>
# Run chmod +x VPN.sh

###### RUN #######
# VPN.sh --auto

# RECONNECT_AFTER=10.0 # If cancel reconnecting, recheck after 10.0 second
CHECKING_RATE=1.0 # Check connection status once in 1.0 second
IS_AUTOMATING=0 # 0 | 1
CONNECTION_STATUS="Disconnected" # Connected | Connecting | Disconnected

connect () {
	echo "Using VPN Service: $AUTO_VPN"
	scutil --nc start "$AUTO_VPN"
	sleep 0.5
	osascript -e "
		set foundApplication to false
		set foundWindowIndex to -1

		repeat while foundApplication is equal to false
			tell application \"System Events\" to set foundApplication to exists (processes where name is \"UserNotificationCenter\")
			delay 0.05
		end repeat

		repeat while foundWindowIndex is equal to -1
			tell application \"System Events\" 
				tell application process \"UserNotificationCenter\"
					set windowCount to count windows
					if (windowCount is greater than or equal to 1) then
						if (value of static text 1 of window 1 contains \"VPN Connection\")
							set foundWindowIndex to 1
						end if
					end if
				end tell
			end tell
			delay 0.05
		end repeat

		log \"Found VPN Login: window \" & foundWindowIndex

		tell application \"System Events\"
			tell application \"UserNotificationCenter\" 
				activate
			end tell
			delay 0.05
			tell application process \"UserNotificationCenter\"
				tell window foundWindowIndex
					set focused of text field 2 to true
					keystroke \"$AUTO_VPN_PWD\"
					click button 1
				end tell
			end tell
		end tell
	"
	IS_AUTOMATING=0
}

polling_connection_status () {
	CONNECTION_STATUS=$(scutil --nc status "$AUTO_VPN" | sed -n 1p)
	while [ $CONNECTION_STATUS = "Disconnected" ] && [ $IS_AUTOMATING = 0 ]; do
		CONNECTION_STATUS="Connecting"

		echo "Connection is not found, now checking VPN Service: $AUTO_VPN, $CONNECTION_STATUS"

		osascript -e "
			tell application \"System Events\"
				with timeout of 9999999999 seconds
					set myMsg to \"$AUTO_VPN was diconnected\" & return & return & \"Do you want to re-connect?\"
	   				set theResp to display dialog myMsg buttons {\"Cancel\", \"Connect\"} default button 2 
	   			end timeout
			end tell
		"

		if [ "$?" = "0" ] && [ $IS_AUTOMATING = 0 ]; then
			IS_AUTOMATING=1
			connect
		else
			exit 0;
		fi
		sleep $CHECKING_RATE
	done
}

if [ "$1" = "--auto" ]; then
	while $true; do
		polling_connection_status
		sleep $CHECKING_RATE
	done
else
	polling_connection_status
	sleep $CHECKING_RATE
	exit 0
fi