ezz

#!/usr/bin/env bash
# ezz - resteazy darker
# Put the pixel brightness to dark after the keyboard & mouse input idled for a given amount of time.
# Helpful if you want to disable the pixels but want to keep the monitor on.
#
# Usage:
#
#   ezz [<IDLE-SECONDS>]
#
# Examples:
#
#   ezz     # Default to 5 seconds idle time
#   ezz 90  # Allow 90 seconds idle time
#
# author: andreasl

max_idle_time=${1:-5}
is_dark=false

screen='DisplayPort-0'
xrandr --listactivemonitors | grep --silent --no-messages 'DisplayPort-0' || screen='eDP' # internal screen

# Command to execute affter the idle timeout.
darker() {
    is_dark=true
    xrandr --output "$screen" --brightness 0.0
}

brighter() {
    is_dark=false
    xrandr --output "$screen" --brightness 1
}

while true; do
    idle_time=$(($(xprintidle) / 1000))

    if [ "$idle_time" -ge "$max_idle_time" ]; then
        [ "$is_dark" == 'false' ] && darker
    else
        [ "$is_dark" == 'true' ] && brighter
        sleep $((max_idle_time - idle_time))
    fi
    sleep 0.3
done