{ config, pkgs, lib, flakeRoot, ... }:

let
  wallpaperSource = "${flakeRoot}/assets/hyprland/wallpaperstuff";
  wallpaperTarget = "${config.home.homeDirectory}/.config/wpaperd";
in
{
  # Install wpaperd system-wide
  environment.systemPackages = with pkgs; [ wpaperd ];

  # Activation script: copy wallpapers & config to ~/.config/wpaperd
  system.activationScripts.copyWpaperdConfig = {
    text = ''
      echo "=== Copying wpaperd config to ${wallpaperTarget} ==="
      mkdir -p "${wallpaperTarget}"
      cp -rT "${wallpaperSource}" "${wallpaperTarget}"
      chmod -R 755 "${wallpaperTarget}"
      echo "Done."
    '';
    deps = [];
  };

  # User systemd service (runs on login)
  systemd.user.services.wpaperd = {
    description = "wpaperd wallpaper daemon";
    wantedBy = [ "default.target" ];
    after = [ "default.target" ];

    serviceConfig = {
      Type = "simple";
      ExecStart = "${pkgs.wpaperd}/bin/wpaperd --config ${wallpaperTarget}/wallpaper.toml";
      Restart = "on-failure";
      RestartSec = 1;
    };

    enable = true;
  };
}