{ pkgs, lib, ... }:

with lib;

{
  services = {
    xserver = {
      enable = true;

      displayManager = {
        gdm = {
          enable = true;
          wayland = true;

          autoSuspend = false;
        };
      };

      desktopManager = {
        gnome = {
          enable = true;
          debug = true;

          flashback.enableMetacity = true;
        };

        xterm.enable = false;
      };

      xkb.layout = "de";
    };

    displayManager = {
      logToFile = true;
      defaultSession = "gnome-flashback-metacity";
    };

    gnome = {
      core-utilities.enable = true;
      core-shell.enable = true;
      core-os-services.enable = true;
      gnome-keyring.enable = true;
    };
  };

  environment.gnome.excludePackages = with pkgs; [
    epiphany
    gnome-online-accounts-gtk
    gnome-tour
    geary
    gnome-calendar
    gnome-contacts
    xterm
  ];

  programs.dconf = {
    enable = true;
    profiles.user.databases = [
      {
        settings = {
          # Set the color scheme to dark.
          "org/gnome/desktop/interface".color-scheme = "prefer-dark";

          "org/gnome/desktop/wm/keybindings".close = [ "<Super>q" ];

          "org/gnome/desktop/session".idle-delay = gvariant.mkUint32 180;
          "org/gnome/desktop/screensaver".lock-delay = gvariant.mkUint32 0;

          # Prevent hibernation
          "org/gnome/settings-daemon/plugins/power".power-button-action = "nothing";
          "org/gnome/settings-daemon/plugins/power".sleep-inactive-ac-type = "logout";
          "org/gnome/settings-daemon/plugins/power".sleep-inactive-ac-timeout = "900";

          # Allow to switch users
          "org/gnome/desktop/lockdown".disable-user-switching = false;
          "org/gnome/desktop/screensaver".user-switch-enabled = true;
        };
      }
    ];

    profiles.gdm.databases = [
      {
        settings = {
          "org/gnome/login-screen" = {
            disable-user-list = true;
          };
        };
      }
    ];
  };
}