#!/bin/bash

lock_icon="$HOME/.dotfiles/screen-lock.png"

scrot /tmp/screen.png
convert /tmp/screen.png -scale 20% -scale 500% /tmp/screen.png

if [[ -f $lock_icon ]]
then
    # placement x/y
    PX=0
    PY=0
    # lockscreen image info
    R=$(file $lock_icon | grep -o '[0-9]* x [0-9]*')
    RX=$(echo $R | cut -d' ' -f 1)
    RY=$(echo $R | cut -d' ' -f 3)

    SR=$(xrandr --query | grep ' connected' | sed 's/primary //' | cut -f3 -d' ')
    for RES in $SR
    do
        # monitor position/offset
        SRX=$(echo $RES | cut -d'x' -f 1)                   # x pos
        SRY=$(echo $RES | cut -d'x' -f 2 | cut -d'+' -f 1)  # y pos
        SROX=$(echo $RES | cut -d'x' -f 2 | cut -d'+' -f 2) # x offset
        SROY=$(echo $RES | cut -d'x' -f 2 | cut -d'+' -f 3) # y offset
        PX=$(($SROX + $SRX/2 - $RX/2))
        PY=$(($SROY + $SRY/2 - $RY/2))

        convert /tmp/screen.png $lock_icon -geometry +$PX+$PY -composite -matte  /tmp/screen.png
        echo "done"
    done
fi
# dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Stop
i3lock -e -n -u -i /tmp/screen.png

# Turn the screen off after a delay.
sleep 60; pgrep i3lock && xset dpms force off