#!/usr/bin/env bash

##set working directory to location of this script
cd "$(dirname "$0")"

PIDFILE=bg_slideshow.pid
remove_pidfile()
{
  rm -f "$PIDFILE"
}

if [ -f "$PIDFILE" ]; then
  kill -9 "$(cat $PIDFILE)" 
fi

if [[  ${1} == kill  ]]; then
echo "killing myslef, byeeee"
exit
fi


echo $$ > "$PIDFILE"


bgsDirectory="/home/andrzej/bgs/"
path=${1}
duration=${2}


echo "path: ${path}, duration: ${duration}"

#ARGS $1:directory e.g. chsck
chooseRandom(){
	shopt -s nullglob
	files=("${bgsDirectory}${1}/"*)
	length=$((${#files[@]}))
	echo "length: ${length}"
	randomIndex=$(($RANDOM % $length))
	echo "random index: ${randomIndex}"
	##re-roll if the result is a directory
	while [[ -d ${files[$randomIndex]} ]]
	do
		echo "${files[randomIndex]} is a directory!"
randomIndex=$(($RANDOM % $length))
	done
	image="${files[$randomIndex]}" 
	echo ${image}
}



while true; do
chooseRandom ${path}
hyprctl hyprpaper preload "${image}"
hyprctl hyprpaper wallpaper ",contain:${image}"
sleep $duration
hyprpaper unload all
done