{ pkgs, stable, lib, ... }: with lib.gvariant;

let
#  wallpaper = pkgs.stdenv.mkDerivation {
#    name = "wallpaper";
#    phases = [ "installPhase" ];
#    installPhase = ''
#      mkdir -p $out/share/backgrounds
#      cp ${../wallpaper.png} $out/share/backgrounds/wallpaper.png
#    '';
#  };
in 
{
  #imports = [
  #  inputs.home-manager.nixosModules.home-manager
  #];

  # nixpkgs.overlays = [
  #   (final: prev: {
  #     gnome = prev.gnome.overrideScope' (gnomeFinal: gnomePrev: {
  #       mutter = gnomePrev.mutter.overrideAttrs (old: {
  #         src = pkgs.fetchgit {
  #           url = "https://gitlab.gnome.org/vanvugt/mutter.git";
  #           # GNOME 45: triple-buffering-v4-45
  #           rev = "0b896518b2028d9c4d6ea44806d093fd33793689";
  #           sha256 = "sha256-mzNy5GPlB2qkI2KEAErJQzO//uo8yO0kPQUwvGDwR4w=";
  #         };
  #       });
  #     });
  #   })
  # ];

  nixpkgs.overlays = [
    (self: super: {
      qt6 = super.qt6 // {
        qtwayland = super.qt6.qtwayland.overrideAttrs (oldAttrs: {
          patches = (oldAttrs.patches or []) ++ [
            ./patches/0004-fix-gtk4-embedding.patch
          ];
        });
      };
    }
    )
  ];
  
  #system.activationScripts."gnome_setup_misc".text = ''
  #  rm -f /home/delta/.config/gtk-4.0/gtk.css
  #  rm -f /home/delta/.config/gtk-3.0/gtk.css
  #  # ${pkgs.glib}/bin/gsettings set org.gnome.desktop.interface cursor-size 16 
  #'';

  programs.dconf.enable = true;
  programs.dconf.profiles.user.databases = [
    { 
      settings = {
        "org/gnome/mutter" = {
          experimental-features = [ "scale-monitor-framebuffer" ];
        };
        "org/gnome/settings-daemon/plugins/media-keys" = {
          custom-keybindings = [
            "/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/"
            "/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom1/"
          ];
        };
        "org/gnome/shell/keybindings" = {
          show-screenshot-ui = [ "<Shift><Super>s" ];
        };
        "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0" = {
          binding = "<Alt>Return";
          command = "/etc/profiles/per-user/delta/bin/kitty_wrapped";
          name = "kitty";
        };
        "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom1" = {
          binding = "<Control><Alt>x";
          command = "/etc/profiles/per-user/delta/bin/keepassxc";
          name = "keepassxc";
        };
        "org/gnome/desktop/sound" = {
          allow-volume-above-100-percent = true;
        };
        "org/gnome/desktop/wm/keybindings" = {
          # close = mkEmptyArray (type.string);
          # switch-input-source = [ "<Shift>Alt_L" ];
          # switch-input-source-backward = [ "<Alt>Shift_L" ];
        };
        "org/gnome/desktop/interface" = {
          icon-theme = "Papirus-Dark";
          color-scheme = "prefer-dark";
          #gtk-theme = "adw-gtk3-dark";
        };
        "org/gnome/shell" = {
          favorite-apps = [
            "firefox.desktop" 
            "vesktop.desktop"
            "org.telegram.desktop.desktop" 
            "spotify.desktop" 
            "kitty.desktop" 
            "org.gnome.Nautilus.desktop"
          ];
          disable-user-extensions = false;
          enabled-extensions = [
            "activate-window-by-title@lucaswerkmeister.de" 
            "appindicatorsupport@rgcjonas.gmail.com" 
            "clipboard-indicator@tudmotu.com" 
            "gsconnect@andyholmes.github.io"
            "tailscale@joaophi.github.com"
            "unite@hardpixel.eu" 
            "user-theme@gnome-shell-extensions.gcampax.github.com"
            "pip-on-top@rafostar.github.com"
            "cloudflare-warp-toggle@khaled.is-a.dev"
          ];
        };
        "org/gnome/desktop/input-sources" = {
          mru-sources = [ (mkTuple [ "xkb" "us" ]) ];
          sources = [ (mkTuple [ "xkb" "us" ]) (mkTuple [ "xkb" "ru" ]) ];
          xkb-options = [ "terminate:ctrl_alt_bksp" "lv3:switch" "compose:ralt" ];
        };
        "org/gnome/desktop/screensaver" = {
          lock-enabled = true;
        };
        "org/gnome/desktop/notifications" = {
          show-in-lock-screen = false;
        };
        "org/gnome/desktop/session" = {
          idle-delay = mkUint32 180;
        };
        "org/gnome/shell/extensions/unite" = {
          enable-titlebar-actions = true; 
          extend-left-box = false;
          hide-activities-button = "never";
          hide-app-menu-icon = false;
          notifications-position = "center";
          reduce-panel-spacing = true;
          restrict-to-primary-screen = false;
          show-appmenu-button = true;
          show-desktop-name = false;
          show-legacy-tray = false;
          show-window-buttons = "never";
          show-window-title = "never";
        };
        "org/gnome/shell/extensions/user-theme" = {
          name = "Mojave-Dark-solid-alt";
          #name = "Catppuccin-Mocha-Compact-Lavender-Dark";
        };
        "org/gnome/shell/weather" = {
          automatic-location = true;
        };
        #"org/gnome/desktop/background" = {
        #  picture-uri = "file:///run/current-system/sw/share/backgrounds/wallpaper.png";
        #  picture-uri-dark = "file:///run/current-system/sw/share/backgrounds/wallpaper.png";
        #};
        "org/gnome/desktop/peripherals/touchpad" = {
          tap-to-click = true;
        };
        "org/gnome/settings-daemon/plugins/power" = {
          sleep-inactive-ac-type = "nothing";
        };
        "org/gnome/settings-daemon/plugins/power" = {
          sleep-inactive-battery-timeout = mkUint32 300;
        };
      };
    }
  ];

  environment.systemPackages = with pkgs; [
    gnomeExtensions.appindicator
    gnomeExtensions.activate-window-by-title
    stable.gnomeExtensions.unite
    gnomeExtensions.tailscale-qs
    gnomeExtensions.gsconnect
    gnomeExtensions.clipboard-indicator
    gnomeExtensions.pip-on-top
    gnomeExtensions.cloudflare-warp-toggle
    gnomeExtensions.tiling-assistant
    gnomeExtensions.overview-background
    gnome.gnome-tweaks
    mojave-gtk-theme
    adw-gtk3
    papirus-icon-theme
    #wallpaper
  ];

  environment.gnome.excludePackages = with pkgs.gnome; [
    pkgs.gnome-text-editor
    pkgs.gnome-tour
    pkgs.orca
    epiphany
    geary
    pkgs.gnome-console
    gnome-terminal
    gnome-backgrounds
    gnome-calendar
    gnome-characters
    gnome-clocks
    gnome-contacts
    gnome-font-viewer
    gnome-logs
    gnome-maps
    gnome-music
    gnome-weather
    simple-scan
    sushi
    totem
    yelp
  ];

  services.gnome = {
    gnome-browser-connector.enable = false;
    gnome-initial-setup.enable = false;
    gnome-online-accounts.enable = false;
  };
}