Pause processes during night

pause.sh

#!/bin/bash
#
# This script will stop a list of running proccesses (var PROCS), disable all monitors and CPUs (except cpu-0).
#
# Usage:
#  pause [duration]
#
# With no parameters it will pause right alway.
# If [duration] is specified, it will detect for inactivity and pause, in an infinite loop. Use CTRL+C to exit.
# [duration] accepts the same as the command sleep.
#

set -eu

PROCS="slack telegram chrome brave firefox" ## Insert here your energy-consuming programs
LAST_CPU=$(lscpu -e=cpu|sed -ne '$s/ //gp')

if [ $# -gt 0 ]; then
  PROCS="$@"
fi

function sig_proc()
{
    local sig=${1:-CONT}
    if [ "$sig" == STOP ]; then
        echo Pausing processes: $PROCS
    else
        echo resuming processes: $PROCS
    fi
    printf "%s\n" $PROCS | xargs -l pkill "-$sig" || true
}

function set_cpu_state()
{
    local state=${1:-1}

    if [ "$state" -eq 0 ]; then
        echo "Disabling CPUs [1..$LAST_CPU]"
    else
        echo "Enabling CPUs [1..$LAST_CPU]"
    fi
    echo $state | eval sudo tee "/sys/devices/system/cpu/cpu{1..$LAST_CPU}/online" >/dev/null
}

function monitor()
{
    xset -display $DISPLAY dpms force ${1:-on}
}

function pause()
{
    sig_proc STOP
    set_cpu_state 0
    monitor off

    read -p 'Press [ENTER] to resume...'

    monitor on
    set_cpu_state 1
    sig_proc CONT
}

if [ $# -eq 0 ]; then
    pause
elif which xdotool &>/dev/null; then
    TIMEOUT=$1
    eval $(xdotool getmouselocation --shell --prefix=PREV_)
    while true; do
        echo Waiting $TIMEOUT
        sleep $TIMEOUT
        eval $(xdotool getmouselocation --shell --prefix CURR_)
        #echo Current: $CURR_X, Last: $PREV_X
        if [ $CURR_X -eq $PREV_X ]; then
            pause
        fi
        PREV_X=$CURR_X
    done
fi