#!/bin/bash

if command -v brillo &> /dev/null; then
	function send_notification() {
	brightness=$(printf "%.0f\n" $(brillo -G))
	dunstify -a "changebrightness" -u low -r 9991 -h int:value:"$brightness" -i "brightness-$1" "Brightness: $brightness%" -t 2000
}

	case $1 in
	up)
		brillo -A 5 -q -u 150000
		send_notification $1
		;;
	down)
		brillo -U 5 -q -u 150000
		send_notification $1
		;;
	esac
fi