#!/bin/sh

INTERVAL="$1"
WALLPAPER_DIR="$2"

rm -rf ~/.cache/swww/
swww kill

swww init
interval_secs="$(echo "60 * ${INTERVAL}" | bc)"

while true; do
    wallpaper="$(fd '\.(png|jpe?g|gif)$' "$WALLPAPER_DIR" --type f --type l -L | shuf | head -1)"
    swww img "$wallpaper"
    sleep "$interval_secs"
done