#!/usr/bin/env bash

function set_layout() {
	echo "Setting layout to $1"
	xkbcomp ~/.xkb/$1.xkb $DISPLAY
	echo $1 > ~/.cache/xkb-curr-$DISPLAY
}
layouts=(insert normal)
current_layout=$(cat ~/.cache/xkb-curr-$DISPLAY || echo "")

if [[ $current_layout == "" ]]; then
	echo "No current layout found!"
	set_layout ${layouts[0]}
fi

i=0
while [[ $i -lt ${#layouts[@]} ]]; do
	if [[ $current_layout == ${layouts[$i]} ]]; then
		new_idx=$(($i+1))
		if [[ $new_idx -eq ${#layouts[@]} ]]; then
			set_layout ${layouts[0]}
		else
			set_layout ${layouts[$new_idx]}
		fi
		exit
	fi
	((i++))
done

echo "Current Layout doesn't exist!"
set_layout ${layouts[0]}