# network utility functions

# get the ip address of the host
function get_local_ip() {
		echo -e "The interfaces and IPs are:\n$(ip -o -4 addr show | awk '/inet 192.168|inet 10.|inet 172.16/ {split($4, a, "/"); print $2 ": " a[1] "\n"}')"
}

function get_public_ip() {
		public_ip=$(curl -s canhazip.com)
		echo -e "The public IP is: $public_ip"
}

function is_dns_working() {
		dns_working=$(ping -c 1 google.com | grep "1 received" | wc -l)
		if [ $dns_working -eq 1 ]; then
				return 0
		else
				return 1
		fi

}


function reconnect_vpn_on_dns_failure() {
		# reconnect vpn if dns is not working
		if ! is_dns_working; then
				echo "DNS is not working, reconnecting VPN"
				mullvad reconnect
		else
				echo "DNS is working, no need to reconnect VPN"
		fi
}