os/modules/graphical/default.nix

args@{
  lib,
  config,
  pkgs,
  ...
}:
with lib; let
  psCfg = config.pub-solar;
  tomlFormat = pkgs.formats.toml {};
  sessionVariables = {
    WLR_RENDERER =
      if psCfg.graphical.wayland.software-renderer.enable
      then "pixman"
      else "gles2";
    # Fix KeepassXC rendering issue
    # https://github.com/void-linux/void-packages/issues/23517
    QT_AUTO_SCREEN_SCALE_FACTOR = "0";
  };
in {
  imports = [
    ./sway
    ./waybar.nix
    ./mako.nix
  ];

  options.pub-solar.graphical = {
    wayland.software-renderer.enable = mkOption {
      type = types.bool;
      default = false;
      description = "Feature flag enabling wlroots software renderer, useful in VMs";
    };
  };

  config = {
    hardware.opengl.enable = true;

    environment = {
      systemPackages = with pkgs; [
        gtk-engine-murrine
        gtk_engines
        gsettings-desktop-schemas

        matcha-gtk-theme
        papirus-maia-icon-theme

        glib
        xdg-utils
        xorg.xbacklight

        desktop-file-utils
      ];

      variables = sessionVariables;
    };

    services.getty.autologinUser = psCfg.user.name;

    # Required for running Gnome apps outside the Gnome DE, see https://nixos.wiki/wiki/GNOME#Running_GNOME_programs_outside_of_GNOME
    programs.dconf.enable = true;
    services.udev.packages = with pkgs; [gnome3.gnome-settings-daemon];
    # Enable Sushi, a quick previewer for nautilus
    services.gnome.sushi.enable = true;
    # Enable GVfs, a userspace virtual filesystem
    services.gvfs.enable = true;

    # This actually lowers security and is
    # required to run electron apps with the hardened kernel
    boot.kernel.sysctl."kernel.unprivileged_userns_clone" = 1;

    fonts = {
      packages = with pkgs; [
        dejavu_fonts
        powerline-fonts
      ];
      enableDefaultPackages = true;
      fontconfig.enable = true;
      fontconfig.defaultFonts = {
        monospace = ["DejaVu Sans Mono for Powerline"];
        sansSerif = ["DejaVu Sans"];
      };
    };

    users.users."${psCfg.user.name}".packages = with pkgs; [
      alacritty
      gnome.adwaita-icon-theme
      gnome.eog
      gnome.nautilus
      gnome.seahorse
      gnome.yelp
      keepassxc
      libnotify
      toggle-kbd-layout
      vlc
      wcwd
      wdisplays
      wl-mirror
    ];

    qt = {
      enable = true;
      platformTheme = "gtk2";
      style = "gtk2";
    };

    home-manager.users."${psCfg.user.name}" = {
      home.file."xinitrc".source = ./.xinitrc;
      xdg.configFile."alacritty/alacritty.toml".source = tomlFormat.generate "alacritty.toml" ((import ./alacritty.nix) args);
      xdg.configFile."xmodmap".source = ./.config/xmodmap;
      xdg.configFile."user-dirs.locale".source = ./.config/user-dirs.locale;
      xdg.configFile."libinput-gestures.conf".source = ./.config/libinput-gestures.conf;
      xdg.configFile."wallpaper.jpg".source = ./assets/wallpaper.jpg;

      programs.firefox = {
        enable = true;
        package = pkgs.firefox-wayland;
      };

      dconf.settings = {
        "org/gnome/desktop/interface" = {
          color-scheme = "prefer-dark";
        };
      };

      gtk = {
        enable = true;
        font.name = "Lato";
        iconTheme = {
          package = pkgs.papirus-icon-theme;
          name = "Papirus-Adapta-Nokto-Maia";
        };
        theme = {
          package = pkgs.matcha-gtk-theme;
          name = "Matcha-dark-aliz";
        };

        gtk3.extraConfig = {
          gtk-xft-antialias = "1";
          gtk-xft-hinting = "1";
          gtk-xft-hintstyle = "hintfull";
          gtk-xft-rgba = "rgb";
          gtk-application-prefer-dark-theme = "1";
        };
      };

      xresources.extraConfig = builtins.readFile ./.Xdefaults;

      services.network-manager-applet.enable = true;
      systemd.user.services.network-manager-applet = {
        Unit = {
          BindsTo = ["sway-session.target"];
          After = lib.mkForce ["sway-session.target"];
          Requires = lib.mkForce [ ];
        };
        Install.WantedBy = [ "sway-session.target" ];
      };

      home.sessionVariables = sessionVariables;
      systemd.user.sessionVariables = sessionVariables;
    };
  };
}