add: wallpaper changer

apps/hyprland/hypr/rules.nix

@@ -5,6 +5,15 @@
       "float, class:^(org\.hakase\.popup\..*)$"
       "animation slide right, class:^(org\.hakase\.popup\..*)$"
       "dimaround, class:^(org\.hakase\.popup\..*)$"
+      # --- WALLPAPER PICKER ---
+      "float, class:^(wallpaper-selector)$"
+      "float, initialTitle:^(Wallpaper Selector)$"
+      "center, class:^(wallpaper-selector)$"
+      "center, initialTitle:^(Wallpaper Selector)$"
+      "size 60% 60%, class:^(wallpaper-selector)$"
+      "size 60% 60%, initialTitle:^(Wallpaper Selector)$"
+      "dimaround, class:^(wallpaper-selector)$"
+      "dimaround, initialTitle:^(Wallpaper Selector)$"
 
       # Prevent Firefox and Terminal from stealing focus on launch
       "suppressevent activate, workspace:20"

apps/hyprpaper/switch-wallpaper.nix

@@ -1,17 +1,35 @@
 {pkgs, ...}: {
   home.packages = with pkgs; [
-    (writeShellScriptBin "switch-wallpaper" ''
+    (writeShellScriptBin "hakase-wallpaper-switch" ''
+      if [[ "$1" != "run" ]]; then
+        if command -v ghostty &> /dev/null; then
+           ghostty --class="wallpaper-selector" --title="Wallpaper Selector" -e bash -c "switch-wallpaper run || read -p 'Hit Enter to close...'"
+           exit 0
+        elif command -v kitty &> /dev/null; then
+           kitty --class wallpaper-selector --title "Wallpaper Selector" -e bash -c "switch-wallpaper run || read -p 'Hit Enter to close...'"
+           exit 0
+        fi
+      fi
+
       tmp_file=$(mktemp)
       target_dir="$HOME/.config/nixos/assets/Wallpapers"
       if [ ! -d "$target_dir" ]; then
         target_dir="$HOME"
       fi
 
+      # Ensure we are in a terminal that supports yazi
       ${pkgs.yazi}/bin/yazi "$target_dir" --chooser-file="$tmp_file"
+
+      if [ ! -f "$tmp_file" ]; then
+        echo "No selection file created."
+        exit 1
+      fi
+
       WALLPAPER=$(cat "$tmp_file")
       rm -f "$tmp_file"
 
       if [ -z "$WALLPAPER" ]; then
+          echo "No wallpaper selected."
           exit 0
       fi
 
@@ -20,7 +38,7 @@
       ${pkgs.hyprland}/bin/hyprctl hyprpaper preload "$WALLPAPER"
       ${pkgs.hyprland}/bin/hyprctl hyprpaper wallpaper ",$WALLPAPER"
 
-      exec matugen image $WALLPAPER
+      exec matugen image "$WALLPAPER"
     '')
   ];
 }