#!/usr/bin/env bash
# ==================================================
#  KoolDots (2026)
#  Project URL: https://github.com/LinuxBeginnings
#  License: GNU GPLv3
#  SPDX-License-Identifier: GPL-3.0-or-later
# ==================================================
# source https://wiki.archlinux.org/title/Hyprland#Using_a_script_to_change_wallpaper_every_X_minutes

# This script will randomly go through the files of a directory, setting it
# up as the wallpaper at regular intervals
#
# NOTE: this script uses bash (not POSIX shell) for the RANDOM variable

wallust_refresh=$HOME/.config/hypr/scripts/RefreshNoWaybar.sh

focused_monitor=$(hyprctl monitors | awk '/^Monitor/{name=$2} /focused: yes/{print name}')
if command -v awww >/dev/null 2>&1; then
	WWW="awww"
else
	WWW="swww"
fi

if [[ $# -lt 1 ]] || [[ ! -d $1   ]]; then
	echo "Usage:
	$0 <dir containing images>"
	exit 1
fi

# Edit below to control the images transition (swww/awww)
export SWWW_TRANSITION_FPS=60
export SWWW_TRANSITION_TYPE=simple

# This controls (in seconds) when to switch to the next image
INTERVAL=1800

while true; do
	find "$1" \
		| while read -r img; do
			echo "$((RANDOM % 1000)):$img"
		done \
		| sort -n | cut -d':' -f2- \
		| while read -r img; do
			$WWW img -o $focused_monitor "$img"
			# Regenerate colors from the exact image path to avoid cache races
			$HOME/.config/hypr/scripts/WallustSwww.sh "$img"
			# Refresh UI components that depend on wallust output
			$wallust_refresh
			sleep $INTERVAL
			
		done
done