inputs: {
  config,
  lib,
  pkgs,
  ...
}:
with lib; let
  cfg = config.de2u;
in {
  options.de2u = {
    enable = mkEnableOption "Enable de2 user stuff";

    tiling = mkOption {
      type = types.bool;
      default = true;
      description = "Enable tiling stuff";
    };

    touch = mkOption {
      type = types.bool;
      default = false;
      description = "Make usable for touchscreens";
    };
  };

  config = mkIf cfg.enable {
    ezcolors.enable = lib.mkDefault true;
    ezfonts.enable = lib.mkDefault true;

    programs.firefox.enable = true;

    programs.kermit = {
      enable = lib.mkDefault true;
      settings = {
        key = lib.mkDefault "shift";
        opacity = lib.mkDefault "1";
      };
    };

    home.packages = with pkgs; [
      gnomeExtensions.improved-workspace-indicator
      gnomeExtensions.vitals
      gnomeExtensions.clipboard-indicator
      gnomeExtensions.just-perfection
      gnomeExtensions.appindicator
      gnomeExtensions.unite-shell
      gnomeExtensions.gamemode
      gnomeExtensions.gsconnect
      gnomeExtensions.sound-output-device-chooser
      gnomeExtensions.bluetooth-quick-connect
      gnomeExtensions.forge
    ];

    systemd.user.sessionVariables = {
      MOZ_ENABLE_WAYLAND = "1";
      QT_WAYLAND_DISABLE_WINDOWDECORATION = lib.mkIf (cfg.tiling && !cfg.touch) "1";
    };

    xdg.configFile."gtk-4.0/gtk.css".text = ''
      /* UNITE windowDecorations */
      @import url('${config.home.homeDirectory}/.nix-profile/share/gnome-shell/extensions/unite@hardpixel.eu/styles/gtk4/buttons-right/${
        if (cfg.tiling && !cfg.touch)
        then "always"
        else "both"
      }.css');
      /* windowDecorations UNITE */
    '';
    gtk.gtk3.extraCss = ''
      /* UNITE windowDecorations */
      @import url('${config.home.homeDirectory}/.nix-profile/share/gnome-shell/extensions/unite@hardpixel.eu/styles/gtk3/buttons-right/${
        if (cfg.tiling && !cfg.touch)
        then "always"
        else "both"
      }.css');
      /* windowDecorations UNITE */
    '';
    home.activation.gtk3css-over-unite = {
      data = ''
        $DRY_RUN_CMD rm -f ~/.config/gtk-3.0/gtk.css
        $DRY_RUN_CMD rm -f ~/.config/gtk-4.0/gtk.css
      '';
      before = ["checkLinkTargets"];
      after = [];
    };

    xdg.configFile."mimeapps.list".force = true;
    xdg.mimeApps = let
      browser =
        if config.programs.firefox.enable
        then
          (
            if config.programs.firefox.package.pname == "firefox"
            then "firefox.desktop"
            else "librewolf.desktop"
          )
        else "chromium-browser.desktop";

      apps = {
        "text/plain" = "org.gnome.TextEditor.desktop";

        "inode/directory" = "org.gnome.Nautilus.desktop";

        "image/*" = "org.gnome.eog.desktop";
        # and because mimeapps.list is DUMB
        "image/jpeg" = "org.gnome.eog.desktop";
        "image/bmp" = "org.gnome.eog.desktop";
        "image/gif" = "org.gnome.eog.desktop";
        "image/jpg" = "org.gnome.eog.desktop";
        "image/pjpeg" = "org.gnome.eog.desktop";
        "image/png" = "org.gnome.eog.desktop";
        "image/tiff" = "org.gnome.eog.desktop";
        "image/x-bmp" = "org.gnome.eog.desktop";
        "image/x-gray" = "org.gnome.eog.desktop";
        "image/x-icb" = "org.gnome.eog.desktop";
        "image/x-ico" = "org.gnome.eog.desktop";
        "image/x-png" = "org.gnome.eog.desktop";
        "image/x-portable-anymap" = "org.gnome.eog.desktop";
        "image/x-portable-bitmap" = "org.gnome.eog.desktop";
        "image/x-portable-graymap" = "org.gnome.eog.desktop";
        "image/x-portable-pixmap" = "org.gnome.eog.desktop";
        "image/x-xbitmap" = "org.gnome.eog.desktop";
        "image/x-xpixmap" = "org.gnome.eog.desktop";
        "image/x-pcx" = "org.gnome.eog.desktop";
        "image/svg+xml" = "org.gnome.eog.desktop";
        "image/svg+xml-compressed" = "org.gnome.eog.desktop";
        "image/vnd.wap.wbmp" = "org.gnome.eog.desktop";
        "image/x-icns" = "org.gnome.eog.desktop";

        "video/*" = "org.gnome.Totem.desktop";

        "text/html" = browser;
        "x-scheme-handler/http" = browser;
        "x-scheme-handler/https" = browser;
        "x-scheme-handler/about" = browser;

        "x-scheme-handler/mailto" = "org.gnome.Geary.desktop";

        "application/zip" = "org.gnome.FileRoller.desktop";
        "application/rar" = "org.gnome.FileRoller.desktop";
        "application/7z" = "org.gnome.FileRoller.desktop";
        "application/*tar" = "org.gnome.FileRoller.desktop";
        "x-scheme-handler/sms" = "org.gnome.Shell.Extensions.GSConnect.desktop";
        "x-scheme-handler/tel" = "org.gnome.Shell.Extensions.GSConnect.desktop";
      };
    in {
      enable = true;
      associations.added = apps;
      defaultApplications = apps;
    };

    dconf.settings = with lib.hm.gvariant; {
      "org/gnome/shell/extensions/forge" = {
        stacked-tiling-mode-enabled = false;
        tabbed-tiling-mode-enabled = false;

        # I want this `true` but it screws up on multi-monitor setups
        window-gap-hidden-on-single = false;
      };
      "org/gnome/shell/extensions/forge/keybindings" = {
        window-focus-down = ["<Super>j" "<Super>Down"];
        window-focus-left = ["<Super>h" "<Super>Left"];
        window-focus-right = ["<Super>l" "<Super>Right"];
        window-focus-up = ["<Super>k" "<Super>Up"];

        window-move-down = ["<Shift><Super>j" "<Shift><Super>Down"];
        window-move-left = ["<Shift><Super>h" "<Shift><Super>Left"];
        window-move-right = ["<Shift><Super>l" "<Shift><Super>Right"];
        window-move-up = ["<Shift><Super>k" "<Shift><Super>Up"];

        window-swap-down = ["<Ctrl><Super>j" "<Ctrl><Super>Down"];
        window-swap-left = ["<Ctrl><Super>h" "<Ctrl><Super>Left"];
        window-swap-right = ["<Ctrl><Super>l" "<Ctrl><Super>Right"];
        window-swap-up = ["<Ctrl><Super>k" "<Ctrl><Super>Up"];
      };
      "org/gnome/desktop/interface" = {
        color-scheme = "prefer-dark";
        enable-hot-corners = !cfg.tiling;
        show-battery-percentage = true;
      };
      "org/gnome/shell/extensions/improved-workspace-indicator" = {
        panel-position = "left";
      };
      "org/gnome/shell/extensions/vitals" = {
        hide-zeros = true;
        show-battery = true;
        update-time = 10;
      };
      "org/gnome/shell/extensions/appindicator" = {
        icon-opacity = 255;
        tray-pos = "center";
      };
      "org/gnome/shell/extensions/user-theme" = {
        name =
          if config.ezcolors.enable
          then "Generated"
          else "Default";
      };
      "org/gnome/shell/extensions/just-perfection" = {
        # activities-button = !cfg.tiling; # conflicts with unite?
        startup-status = 0;
        workspace-popup = false;
        window-picker-icon = false;
        animation = 3;
        dash = !cfg.tiling;
        double-super-to-appgrid = true;
      };
      "org/gnome/shell" = {
        disable-user-extensions = false;
        disabled-extensions = [""];
        enabled-extensions =
          [
            "rrc@ogarcia.me"
            "native-window-placement@gnome-shell-extensions.gcampax.github.com"
            "user-theme@gnome-shell-extensions.gcampax.github.com"
            "improved-workspace-indicator@michaelaquilina.github.io"
            "Vitals@CoreCoding.com"
            "clipboard-indicator@tudmotu.com"
            "just-perfection-desktop@just-perfection"
            "appindicatorsupport@rgcjonas.gmail.com"
            "launch-new-instance@gnome-shell-extensions.gcampax.github.com"
            "unite@hardpixel.eu"
            "gamemode@christian.kellner.me"
            # "compiz-windows-effect@hermes83.github.com"
            "bluetooth-quick-connect@bjarosze.gmail.com"
            "gsconnect@andyholmes.github.io"
            # "desktop-cube@schneegans.github.com"
            "sound-output-device-chooser@kgshank.net"
          ]
          ++ (lib.optional cfg.tiling "forge@jmmaranan.com");
      };
      "org/gnome/desktop/peripherals/touchpad" = {
        natural-scroll = false;
      };
      "org/gnome/mutter" = {
        edge-tiling = !cfg.tiling;
        dynamic-workspaces = !cfg.tiling;
      };
      "org/gnome/shell/extensions/unite" = {
        hide-window-titlebars =
          if (cfg.tiling && !cfg.touch)
          then "always"
          else "both";
        hide-activities-button =
          if (cfg.tiling || cfg.touch)
          then "never"
          else "always";
        show-window-buttons =
          if cfg.tiling
          then "never"
          else "both";
        notifications-position = "center";
        restrict-to-primary-screen = false;
        show-legacy-tray = false;
        show-desktop-name = false;
        extend-left-box = false;
        hide-app-menu-icon = false;
        reduce-panel-spacing = false;
        hide-dropdown-arrows = true;
      };
      "org/gnome/desktop/wm/preferences" = {
        focus-mode =
          if cfg.tiling
          then "sloppy"
          else "click";
        resize-with-right-button = true;
        num-workspaces = 9;
      };
      "org/gnome/maps" = {
        night-mode = true;
        transportation-type = "car";
      };
      "org/gnome/system/location" = {
        enabled = true;
      };

      "org/gnome/desktop/wm/keybindings" = let
        workspaceAttrsList = lib.flatten (map
          (n: [
            (lib.nameValuePair "move-to-workspace-${n}" ["<Shift><Super>${n}"])
            (lib.nameValuePair "switch-to-workspace-${n}" ["<Super>${n}"])
          ])
          (map (n: toString n) (lib.range 1 9)));
      in
        lib.listToAttrs workspaceAttrsList
        // {
          minimize = ["<Super>comma"];
          maximize = [""];
          unmaximize = [""];
          move-to-monitor-up = [""];
          move-to-monitor-down = [""];
          move-to-monitor-left = [""];
          move-to-monitor-right = [""];
          move-to-workspace-down = [""];
          move-to-workspace-up = [""];
          switch-to-workspace-down = ["<Primary><Super>Down" "<Primary><Super>j"];
          switch-to-workspace-up = ["<Primary><Super>Up" "<Primary><Super>k"];
          toggle-maximized = ["<Super>m"];
          toggle-fullscreen = ["<Super>f"];
          close = ["<Super>q"];
          cycle-windows = [""];
          panel-run-dialog = ["<Super>d"];
          move-to-workspace-right = [""];
          move-to-workspace-left = [""];
          switch-to-workspace-right = [""];
          switch-to-workspace-left = [""];
          toggle-on-all-workspaces = ["<Super>a"];

          # And deal with the remaining alt keys, screw alt keys
          cycle-windows-backward = [""];
          activate-window-menu = [""];
          cycle-panels = [""];
          cycle-panels-backward = [""];
          switch-panels = [""];
          switch-panels-backward = [""];
          switch-applications = ["<Super>Tab"];
          switch-applications-backward = ["<Shift><Super>Tab"];
          cycle-group = [""];
          cycle-group-backward = [""];
          switch-group = [""];
          switch-group-backward = [""];
          begin-resize = ["<Super>r"];
          begin-move = [""];
        };
      "org/gnome/mutter/keybindings" = {
        toggle-tiled-left = [""];
        toggle-tiled-right = [""];
      };
      "org/gnome/mutter/wayland/keybindings" = {
        restore-shortcuts = [""];
      };
      "org/gnome/shell/keybindings" =
        lib.listToAttrs (map (n: lib.nameValuePair "switch-to-application-${toString n}" [""]) (lib.range 1 9))
        // {
          toggle-application-view = [""];
          open-application-menu = [""];
          toggle-message-tray = ["<Super>v"];
          toggle-overview = [""];
        };
      "org/gnome/settings-daemon/plugins/media-keys" = {
        play = ["<Super>backslash"];
        next = ["<Super>bracketright"];
        previous = ["<Super>bracketleft"];

        volume-down = ["<Super>minus"];
        volume-up = ["<Super>equal"];

        screensaver = ["<Super>Escape"];
        home = [""];
        email = ["<Super>e"];
        www = ["<Super>b"];

        rotate-video-lock-static = [""];

        screenshot-clip = ["Print"];

        custom-keybindings = ["/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/"];
      };
      "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0" = {
        binding = "<Super>t";
        command = "kermit";
        name = "Kermit terminal";
      };
    };
  };
}