#!/bin/bash
# to change wallpapers both niri workspace and niri tab view
[ -z "$1" ] && { echo "Usage: $0 <image-file>"; exit 1; }

WP_DIR="${XDG_DATA_HOME:-$HOME/.local/share}"
finput=$1

read -r fw fh < <(magick identify -format "%w %h" -- "$1")
(( fw > 3840 && fh > 2160 )) && {
	finput="${XDG_CACHE_HOME:-$HOME/.cache}/${finput##*/}"
	echo "WARNING: image too large, resizing ..."
	magick $1 -resize "3840x2160^" $finput
}

echo -n "making blurred version of $finput ... "
mkdir -p $WP_DIR
cp $finput $WP_DIR/.wallpaper
magick $WP_DIR/.wallpaper -filter Gaussian -blur 0x30 $WP_DIR/.wallpaper_blur
[[ $finput == "${XDG_CACHE_HOME:-$HOME/.cache}"* ]] && rm -f $finput
echo "Done."

swww img $WP_DIR/.wallpaper
swww img $WP_DIR/.wallpaper_blur --namespace blur