lock

#!/usr/bin/env bash

scrot /tmp/screen.png
convert /tmp/screen.png -scale 10% -scale 1000% /tmp/screen.png
[[ -f $1 ]] && convert /tmp/screen.png $1 -gravity center -composite -matte /tmp/screen.png
dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Stop
(i3lock -n -i /tmp/screen.png) &

# DPMS (monitor standby) stuff.
# Some stuff like maybe playing music interferes with dpms,
# so we can't do the "normal" way of sleeping a monitor,
# which is `xset dpms 0 0 1200` (set a timeout of 1200 seconds)
# I'm doing it manually here.
(while :
do
    # Turn the screen off every 10 minutes (do it forever
    # so that the screen will turn back off if we have a case
    # where the user wakes the screen up, but then gets distracted
    # and doesn't enter their password).
    sleep 1200
    # Only turn the screen off if we've been idle for more than
    # a minute (to avoid turning it off right as the user is
    # entering their password).
    if [ $(xprintidle) -gt 60000 ]; then
        xset dpms force off
    fi
done) &

# Wait for i3lock to finish
wait %1

# Once i3lock finishes, we can kill the DPMS loop. We only
# want to do DPMS while i3lock is active.
kill %2
rm /tmp/screen.png