#!/bin/sh

groups="us:dvorak de:nodeadkeys"
current="$(setxkbmap -query | grep -oP '(layout|variant):\s*\K\w+' | sed ':a;N;s/\n/:/')"

index() {
  echo "$groups" | cut -d ' ' -f "$1"
}

i=1
while [ ! "$found" ]; do
  group=$(index $i)
  if [ "$group" = "$current" ]; then
    newgroup=$(index $((i+1)))
    [ -z "$newgroup" ] && newgroup=$(index 1)
    found=true
  elif [ -z "$group" ]; then
    newgroup=$(index 1)
    found=true
  fi
  i=$((i+1))
done

setxkbmap -layout "$(echo "$newgroup" | cut -d ':' -f1)" -variant "$(echo "$newgroup" | cut -d ':' -f2)" -option caps:super -option terminate:ctrl_alt_bksp
xset r rate 300 50
killall xcape 2>/dev/null ; xcape -e 'Super_L=Escape'
xset -q | grep "Caps Lock:\s*on" && xdotool key Caps_Lock
sleep 0.03
pkill -RTMIN+15 dwmblocks