made wallpaper settable with xdg config

modules/wp/generate-wallpaper-thumbs.sh

@@ -1,10 +1,15 @@
 #!/usr/bin/env bash
 
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
+
 # Folder with full-size wallpapers
-WALLPAPER_DIR="$HOME/Pictures/Wallpapers"
+WALLPAPER_DIR=$("$SCRIPT_DIR/../../scripts/wallpaper_dir.sh")
+
+echo "$WALLPAPER_DIR"
 
 # Folder to store thumbnails
 THUMB_DIR="$HOME/.cache/wallpaper-thumbs"
+echo "$THUMB_DIR"
 
 if [ ! -d $THUMB_DIR ]; then
   mkdir -p $THUMB_DIR;
@@ -66,12 +71,14 @@ for img in "$WALLPAPER_DIR"/*.{jpg,jpeg,png}; do
         continue
     fi
 
-    num+=1
+    ((num++))
 
     # Generate thumbnail using ImageMagick
     if [ -x "/usr/bin/magick" ]; then
         magick "$img" -resize "${MAX_DIM}x${MAX_DIM}" "$thumb"
-        rm $temp_image_name
+        if [ -f "$temp_image_name" ]; then
+            rm "$temp_image_name"
+        fi
     else
         if [ -f "$temp_image_name" ] && [ "$temp_image_name" -nt "$img" ]; then
             continue