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

{
  # Enable the GNOME Desktop Environment.
  services.displayManager.gdm = {
    enable = true;
    wayland = true;
  };

  services.desktopManager.gnome = {
    enable = true;
  };
  
  programs.dconf.profiles.user.databases = [
    {
      lockAll = true; # prevents overriding
      settings = {
        # re-login to activate
        "org/gnome/mutter" = {
          dynamic-workspaces = false;
          experimental-features=[
            "scale-monitor-framebuffer"
            "xwayland-native-scaling"
          ];
        };
        "org/gnome/settings-daemon/plugins/media-keys" = {
          volume-step = lib.gvariant.mkInt32 3;
        };
        "org/gnome/desktop/wm/preferences" = {
          num-workspaces = lib.gvariant.mkInt32 5;
        };
        "org/gnome/desktop/wm/keybindings" = {
          switch-to-workspace-1 = ["<Control>1"];
          switch-to-workspace-2 = ["<Control>2"];
          switch-to-workspace-3 = ["<Control>3"];
          switch-to-workspace-4 = ["<Control>4"];
          switch-to-workspace-5 = ["<Control>5"];
        };
        "org/gnome/desktop/interface" = {
          document-font-name = "Noto Sans CJK SC 12 @wght=400";
          font-name = "Noto Sans CJK SC 11 @wght=400";
          monospace-font-name = "RecMonoLinear Nerd Font Mono 11";
        };
        "org/gnome/shell" = {
          # disable-user-extensions = true; # Optionally disable user extensions entirely
          enabled-extensions = [
            # Put UUIDs of extensions that you want to enable here.
            # If the extension you want to enable is packaged in nixpkgs,
            # you can easily get its UUID by accessing its extensionUuid
            # field (look at the following example).
            pkgs.gnomeExtensions.blur-my-shell.extensionUuid
            pkgs.gnomeExtensions.dash-to-dock.extensionUuid
            pkgs.gnomeExtensions.brightness-control-using-ddcutil.extensionUuid
            pkgs.gnomeExtensions.caffeine.extensionUuid
            pkgs.gnomeExtensions.night-theme-switcher.extensionUuid
            pkgs.gnomeExtensions.primary-input-on-lockscreen.extensionUuid
            pkgs.gnomeExtensions.tray-icons-reloaded.extensionUuid
            pkgs.gnomeExtensions.auto-move-windows.extensionUuid

            # Alternatively, you can manually pass UUID as a string.
            # "blur-my-shell@aunetx"
            # ...
          ];
        };
        "org/gnome/shell/extensions/auto-move-windows" = {
          application-list = [
            "Alacritty.desktop:1"
            "firefox.desktop:2"
            "thunderbird.desktop:3"
            "org.telegram.desktop.desktop:4"
            "steam.desktop:5"
          ];
        };
      };
    }
  ];

  environment.systemPackages = with pkgs; [
    gnomeExtensions.blur-my-shell
    gnomeExtensions.dash-to-dock
    gnomeExtensions.brightness-control-using-ddcutil
    gnomeExtensions.caffeine
    gnomeExtensions.night-theme-switcher
    gnomeExtensions.primary-input-on-lockscreen
    gnomeExtensions.tray-icons-reloaded
    gnomeExtensions.auto-move-windows # pin apps to workspaces
  ];
}