fix systemd env for wpd

default.nix

@@ -12,6 +12,7 @@ top@{ inputs, ... }: {
             bingwp = config.packages.bingwp;
             screenshot = config.packages.screenshot;
             cursors = config.packages.cursors;
+            wpd = config.packages.wpd;
           })
           inputs.sal.overlays.default
         ];

home/modules/default.nix

@@ -442,20 +442,10 @@ toplevel@{ moduleWithSystem, ... }: {
           timers = { rbingwp = { Timer = { OnCalendar = "*-*-* 10:00:00"; Persistent = true; }; Install = { WantedBy = [ "timers.target" ]; }; }; };
           services = {
             wpd = {
-              Service = {
-                Environment = [ "PATH=${pkgs.xdg-user-dirs}/bin:${pkgs.swaybg}/bin" ];
-                ExecStart = [ "${pkgs.nushell}/bin/nu -c 'swaybg -i ((xdg-user-dir PICTURES) | path split | path join bg.png)'" ];
-              };
-            };
-            bingwp = {
-              Service = { Type = "oneshot"; Environment = [ "PATH=${pkgs.xdg-user-dirs}/bin:${pkgs.nushell}/bin" ]; ExecStart = [ "${pkgs.bingwp}/bin/bingwp" ]; };
-            };
-            rbingwp = {
               Install = { WantedBy = [ "sway-session.target" ]; };
-              Unit = { Description = "Restart bingwp and wpd services"; After = "graphical-session-pre.target"; PartOf = "graphical-session.target"; };
+              Unit = { Description = "Switch background every x minutes"; After = "graphical-session-pre.target"; PartOf = "graphical-session.target"; };
               Service = {
-                Type = "oneshot";
-                ExecStart = [ "${pkgs.nushell}/bin/nu -c '${pkgs.systemd}/bin/systemctl --user restart bingwp.service; ${pkgs.systemd}/bin/systemctl --user restart wpd.service'" ];
+                ExecStart = [ "${pkgs.wpd}/bin/wpd" ];
               };
             };
           };

nixos/modules/default.nix

@@ -19,7 +19,7 @@ top@{ moduleWithSystem, ... }: {
       time.timeZone = "Europe/Prague";
       fonts.packages = with pkgs; [ (nerdfonts.override { fonts = [ "FiraCode" ]; }) noto-fonts noto-fonts-emoji noto-fonts-lgc-plus ];
       environment = {
-        systemPackages = with pkgs; [ cmatrix uutils-coreutils cryptsetup fd file git glibc gnumake mlocate moreutils openssh openssl procs ripgrep srm unzip vim zip just ];
+        systemPackages = with pkgs; [ cmatrix uutils-coreutils-noprefix cryptsetup fd file git glibc gnumake mlocate openssh openssl procs ripgrep srm unzip vim zip just ];
         shells = with pkgs; [ zsh nushell ];
       };
       programs = { zsh.enable = true; nix-ld.enable = true; dconf.enable = true; };

packages/default.nix

@@ -8,9 +8,27 @@ top@{ inputs, ... }: {
           lua-ls.enable = true;
         };
       };
-      bingwp = pkgs.writers.writeNuBin "bingwp" ''
-        http get "https://pic.idimitrov.dev/latest.png" | save -f ([(xdg-user-dir PICTURES), "bg.png"] | str join "/")
-      '';
+      wpd = pkgs.writeShellApplication {
+        name = "wpd";
+        runtimeInputs = with pkgs; [ swaybg xdg-user-dirs fd uutils-coreutils-noprefix ];
+        runtimeEnv = { WAYLAND_DISPLAY = "wayland-1"; };
+        text = ''
+          random_pic () {
+            bg_dir="$(xdg-user-dir PICTURES)/bg"
+            fd . --extension png "$bg_dir" | shuf -n1
+          }
+          swaybg -i "$(random_pic)" -m fill &
+          OLD_PID=$!
+          while true; do
+              sleep 60
+              swaybg -i "$(random_pic)" -m fill &
+              NEXT_PID=$!
+              sleep 5
+              kill -9 $OLD_PID
+              OLD_PID=$NEXT_PID
+          done
+        '';
+      };
       screenshot = pkgs.writeShellApplication {
         name = "screenshot";
         runtimeInputs = with pkgs; [ wl-clipboard xdg-utils ];