lazywal-cli

#!/usr/bin/env sh

_help()
{
	echo
	echo "Usage: lazywal-cli [OPTION] [PATH_TO_VIDEO]"
	echo "Options:"
	echo "		-h		- Display this message"
	echo "		-r		- Restore last wallpaper"
	echo "		-k		- Kill wallpaper"
	echo "		-d		- Debug"
	echo "		-D		- Display with specification (e.g., 1980x1080+0)"
}

xwinwrap_func()
{
	if [ "$display" = "" ];then
		# https://superuser.com/questions/196532/how-do-i-find-out-my-screen-resolution-from-a-shell-script
		display=$(xdpyinfo | grep dimensions | sed -r 's/^[^0-9]*([0-9]+x[0-9]+).*$/\1/')
		xwinwrap_args="-g $display -ni -b -st -un -o 1.0 -ov -debug"
	else
		xwinwrap_args="-g $display -ni -b -st -un -o 1.0 -ov -debug"
	fi
}

_set_display()
{
	display=$1
}

_kill()
{
	pkill xwinwrap
	sleep 0.05
}

_use_wal()
{
	_kill
	file_path=$1
	xwinwrap_func
	mpv_args="-wid WID --loop --no-audio --no-resume-playback --panscan=1.0"

	if [ "$debug" = "true" ];
	then
		xwinwrap $xwinwrap_args -- mpv $mpv_args $file_path 
	else
		xwinwrap $xwinwrap_args -- mpv $mpv_args $file_path &> /dev/null &
	fi
}

_restore()
{
	file_path=$(cat $HOME/.lazywal)
	_use_wal $file_path
}

if [ $# -lt 1 ]
then
	echo "No options found!"
	_help
	exit 1
fi

while getopts "hdrkD:" option; do
	case $option in
		h) # display Help
			_help
			exit;;
		k) # kill wallpaper
			_kill
			exit;;
		d) # debug
			debug="true"
			echo debug
			continue;;
		r) # restore wal
			_restore
			exit;;
		D) # display on specification (use this for external monitors)
			_set_display ${OPTARG}
			continue;;
		*) # Illegal option
			_help
			exit;;
	esac
done

for i in "$@"; do
	if [ -e $i ]
	then
		file_path=$(realpath $i)
		echo $file_path > $HOME/.lazywal
		_restore
	fi
done