#!/usr/bin/env sh
set -e
screen_is_on() {
[ "$(brightnessctl g)" -ne 0 ]
}
turn_on_screen() {
brightnessctl -r
turn_off_screen() {
brightnessctl -s
brightnessctl s 0
if screen_is_on; then
turn_off_screen
else
turn_on_screen
fi