#!/usr/bin/env bash
if (( $# < 1 )); then
	echo "USAGE: $0 LOCATION|off" >&2
	exit 1
fi

current_interfaces="$(ip -o a | grep -oE '[0-9]*:\ mullvad-(v6-)?[a-z][a-z][0-9]*' | uniq | cut -d: -f2 | tr -d ' ')"
for current_interface in $current_interfaces; do
	sudo wg-quick down "$current_interface"
done

if [ "$1" != "off" ]; then
	sudo wg-quick up mullvad-$1
fi