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

let
  username     = config.defaultUser or "henrov";
  homeDir      = "/home/${username}";
  wallpaperDst = "${homeDir}/Wallpapers";
  scriptSrc    = "${flakeRoot}/assets/traveldroid/Wallpapers/set-wallpapers-per-workspace.sh";
in
{
  ############################
  # Packages
  ############################
  environment.systemPackages = with pkgs; [
    swww
    waypaper
    jq
  ];

  ############################
  # Systemd timer + service for wallpapers
  ############################
  systemd.user.services.wallpaperUpdater = {
    description = "Copy wallpapers and set them per workspace every 15 minutes";
    after = [ "network.target" ];
    wants = [];

    serviceConfig.Type = "oneshot";
    serviceConfig.ExecStart = ''
      # Ensure destination exists
      mkdir -p ${wallpaperDst}

      # Copy wallpapers from flake
      cp -r ${flakeRoot}/assets/traveldroid/Wallpapers/* ${wallpaperDst}/
      chown -R ${username}:${username} ${wallpaperDst}
      chmod +x ${wallpaperDst}/set-wallpapers-per-workspace.sh

      # Run the wallpaper script
      ${wallpaperDst}/set-wallpapers-per-workspace.sh
    '';
    # Optional: restart if it fails
    serviceConfig.Restart = "on-failure";
  };

  systemd.user.timers.wallpaperUpdaterTimer = {
    description = "Run wallpaperUpdater service every 15 minutes";
    timerConfig.OnUnitActiveSec = "15min";
    timerConfig.Persistent = true;
    wantedBy = [ "timers.target" ];
    unit = "wallpaperUpdater.service";
  };
}