os/modules/graphical/default.nix

{
  lib,
  config,
  pkgs,
  ...
}:
with lib; let
  psCfg = config.pub-solar;
  yamlFormat = pkgs.formats.yaml {};
  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
  ];

  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
      ];

      etc = {
        "xdg/PubSolar.conf".text = ''
          [Qt]
          style=GTK+
        '';
      };

      variables = sessionVariables;
    };

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

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

    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;
    services.yubikey-agent.enable = true;

    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
      firefox-wayland
      flameshot
      gnome.adwaita-icon-theme
      gnome.eog
      gnome.nautilus
      gnome.seahorse
      gnome.yelp
      hicolor-icon-theme
      keepassxc
      qMasterPassword-wayland
      libnotify
      vlc
    ];

    home-manager.users."${psCfg.user.name}" = {
      home.file."xinitrc".source = ./.xinitrc;
      xdg.configFile."alacritty/alacritty.yml".source = yamlFormat.generate "alacritty.yml" (import ./alacritty.nix);
      xdg.configFile."xmodmap".source = ./.config/xmodmap;
      xdg.configFile."user-dirs.dirs".source = ./.config/user-dirs.dirs;
      xdg.configFile."user-dirs.locale".source = ./.config/user-dirs.locale;
      xdg.configFile."xsettingsd/xsettingsd.conf".source = ./.config/xsettingsd/xsettingsd.conf;
      xdg.configFile."mako/config".source = ./.config/mako/config;
      xdg.configFile."libinput-gestures.conf".source = ./.config/libinput-gestures.conf;
      xdg.configFile."swaync/config.json".source = ./.config/swaync/config.json;
      xdg.configFile."swaync/style.css".source = ./.config/swaync/style.css;
      xdg.configFile."waybar/config".source = ./.config/waybar/config;
      xdg.configFile."waybar/style.css".source = ./.config/waybar/style.css;
      xdg.configFile."waybar/colorscheme.css".source = ./.config/waybar/colorscheme.css;
      xdg.configFile."wallpaper.jpg".source = ./assets/wallpaper.jpg;

      # Required for running Gnome apps outside the Gnome DE, see
      # https://nixos.wiki/wiki/GNOME#Running_GNOME_programs_outside_of_GNOME
      dconf = {
        enable = true;
        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 = "true";
        };

        gtk4.extraConfig = {
          gtk-xft-antialias = "1";
          gtk-xft-hinting = "1";
          gtk-xft-hintstyle = "hintfull";
          gtk-xft-rgba = "rgb";
          gtk-application-prefer-dark-theme = "true";
        };
      };

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

      systemd.user.services.network-manager-applet = import ./network-manager-applet.service.nix pkgs;

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