feat: hyprpaper separate config with auto wallpaper

users/modules/desktop/hyprland.nix

@@ -12,6 +12,7 @@ in {
     ./swaync.nix
     ./waybar.nix
     ./wlsunset.nix
+    ./hyprpaper.nix
   ];
 
   options.home.desktop.hyprland = {
@@ -33,6 +34,7 @@ in {
 
   config = mkIf cfg.enable {
     home.desktop = {
+      hyprpaper.enable = true;
       rofi.enable = mkDefault true;
       swaync.enable = mkDefault true;
       waybar = {
@@ -41,6 +43,7 @@ in {
       };
       wlsunset.enable = mkDefault true;
     };
+    services.blueman-applet.enable = true;
     wayland.windowManager.hyprland = {
       enable = true;
       xwayland.enable = true;
@@ -274,19 +277,5 @@ in {
         bind = SUPER_SHIFT, asterisk, movetoworkspace, 10
       '';
     };
-    services = {
-      blueman-applet.enable = true;
-      hyprpaper = let
-        img = "/home/phundrak/Pictures/Wallpapers/nord/Nordic6.jpg";
-      in {
-        enable = true;
-        settings = {
-          ipc = "on";
-          splash = false;
-          preload = img;
-          wallpaper = ", ${img}";
-        };
-      };
-    };
   };
 }

users/modules/desktop/hyprpaper.nix

@@ -0,0 +1,87 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.home.desktop.hyprpaper;
+in {
+  options.home.desktop.hyprpaper = {
+    enable = mkEnableOption "Enables Hyprpaper";
+    default = mkOption {
+      type = types.str;
+      default = "/home/phundrak/Pictures/Wallpapers/nord/Nordic6.jpg";
+      example = "/home/user/image.jpg";
+    };
+    wallpapers-dir = mkOption {
+      type = types.str;
+      default = "/home/phundrak/Pictures/Wallpapers/nord/";
+      example = "/home/user/Pictures/";
+    };
+    rotation-interval = mkOption {
+      type = types.str;
+      default = "5m";
+      example = "10m";
+      description = "Interval between wallpaper rotations";
+    };
+  };
+  config = mkIf cfg.enable {
+    services.hyprpaper = {
+      inherit (cfg) enable;
+      settings = {
+        ipc = "on";
+        splash = false;
+        preload = cfg.default;
+        wallpaper = ", ${cfg.default}";
+      };
+    };
+    systemd.user = {
+      services.hyprpaper-rotation = {
+        Unit = {
+          Description = "Rotate Hyprpaper wallpaper";
+          After = "graphical-session.target";
+        };
+        Service = {
+          Type = "oneshot";
+          ExecCondition = "pidof Hyprland";
+          ExecStart = "${config.home.homeDirectory}/.config/hypr/hyprpaper-rotate.sh";
+        };
+      };
+
+      timers.hyprpaper-rotation = {
+        Unit = {
+          Description = "Timer for rotating Hyprpaper wallpaper";
+        };
+        Timer = {
+          OnBootSec = cfg.rotation-interval;
+          OnUnitActiveSec = cfg.rotation-interval;
+        };
+        Install = {
+          WantedBy = ["timers.target"];
+        };
+      };
+    };
+    home.file.".config/hypr/hyprpaper-rotate.sh" = {
+      text = ''
+        #!/usr/bin/env bash
+        set -euo pipefail
+
+        WALLPAPER_DIR="${cfg.wallpapers-dir}"
+
+        # Find a random wallpaper
+        WP=$(find "$WALLPAPER_DIR" -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" \) | shuf -n 1)
+
+        if [ -z "$WP" ]; then
+          echo "No wallpapers found in $WALLPAPER_DIR"
+          exit 1
+        fi
+
+        echo "Setting wallpaper to: $WP"
+
+        # Load and set the wallpaper
+        hyprctl hyprpaper preload "$WP" && hyprctl hyprpaper wallpaper ",$WP"
+      '';
+      executable = true;
+    };
+  };
+}