{
  config,
  lib,
  osConfig,
  pkgs,
  launcher,
  ...
}: let
  ifLaptop = lib.mkIf (osConfig.networking.hostName != "dunamis");
in {
  enable = true;
  systemd = {
    enable = true;
    target = "graphical-session.target";
  };
  settings.bottom = {
    position = "bottom";
    height = 34;
    spacing = 0;
    margin-left = 36 + 3;
    margin-right = 36 + 3;
    margin-bottom = 3;
    modules-left = [
      # "custom/launcher"
      "niri/language"
      "niri/workspaces"
      # "wlr/taskbar"
    ];
    modules-center = [
      "clock"
    ];
    modules-right = [
      "privacy"
      "network"
      "cpu"
      "memory"
      "wireplumber"
      "wireplumber#source"
      (ifLaptop "group/laptop")
      "tray"
      "idle_inhibitor"
      "custom/notification"
    ];
    "niri/workspaces" = {
      format = "{index}";
    };
    "niri/language" = {
      format = "{short}";
      # format-en = "🇺🇸";
      # format-uk = "🇺🇦";
    };
    clock = {
      format = "{:%R}";
      interval = 1;
      tooltip = true;
      tooltip-format = "{:%B %d, %A}";
    };
    "custom/launcher" = {
      format = "";
      on-click = launcher;
      tooltip = false;
    };
    "wlr/taskbar" = {
      format = "{icon}";
      icon-size = 16;
      icon-theme = "${config.dconf.settings."org/gnome/desktop/interface".icon-theme}";
      tooltip-format = "{title}";
      on-click = "activate";
    };
    "group/laptop" = {
      orientation = "inherit";
      modules = [
        "backlight"
        "battery"
        "power-profiles-daemon"
      ];
    };
    backlight = {
      format = "{percent}% {icon}";
      format-icons = [
        "󰃚"
        "󰃛"
        "󰃜"
        "󰃝"
        "󰃞"
        "󰃟"
        "󰃠"
      ];
    };
    idle_inhibitor = {
      tooltip = false;
      format = "{icon}";
      format-icons = {
        activated = "󰅶";
        deactivated = "󰾪";
      };
    };
    tray = {
      icon-size = 16;
      spacing = 6;
    };
    battery = {
      states = {
        good = 95;
        warning = 30;
        critical = 15;
      };
      format = "{capacity}% {icon}";
      format-full = "{capacity}% 󱟢";
      format-charging = "{capacity}% 󰂄";
      format-plugged = "{capacity}% 󰚥";
      format-alt = "{icon} {time}";
      format-icons = ["󰁺" "󰁻" "󰁼" "󰁽" "󰁾" "󰁿" "󰂀" "󰂁" "󰂂" "󰁹"];
    };
    memory = {
      format = "{used:0.1f}G ";
      tooltip-format = ''
        RAM: {used:0.1f}G/{total:0.1f}G ({percentage}%)
        Swap: {swapUsed:0.1f}G/{swapTotal:0.1f}G ({swapPercentage}%)'';
    };
    network = {
      format = "{bandwidthDownBits} 󰇚 | {bandwidthUpBits} 󰕒";
      interval = 3;
      tooltip = false;
    };
    cpu = {
      format = "{usage}% 󰍛";
      interval = 3;
    };
    power-profiles-daemon = {
      format = "{icon}";
      tooltip = true;
      tooltip-format = "Power profile: {profile}\nDriver: {driver}";
      format-icons = {
        default = "󱡮";
        performance = "󱡮";
        balanced = "";
        power-saver = "";
      };
    };
    wireplumber = {
      format = "{volume}% {icon}";
      format-muted = "󰖁";
      format-icons = ["󰕿" "󰖀" "󰕾"];
      on-click = lib.getExe pkgs.pwvucontrol;
      on-click-right = "wpctl set-mute @DEFAULT_SINK@ toggle";
      scroll-step = 3;
    };
    "wireplumber#source" = {
      node-type = "Audio/Source";
      format = "{volume}% 󰍬";
      format-muted = "󰍭";
      on-click-right = "wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle";
      scroll-step = 3;
    };
    "custom/notification" = {
      tooltip = false;
      format = "{icon}";
      format-icons = {
        notification = "󱅫";
        none = "󰂚";
        dnd-notification = "󰂛";
        dnd-none = "󰂛";
      };
      return-type = "json";
      exec =
        pkgs.writeShellApplication {
          name = "xfce-notifyd-waybar";
          runtimeInputs = with pkgs; [sqlite xfce.xfconf coreutils];
          text =
            # bash
            ''
              is_dnd=$(xfconf-query -c xfce4-notifyd -p /do-not-disturb)
              notifications_count=$(sqlite3 ~/.cache/xfce4/notifyd/log.sqlite "SELECT count(*) FROM notifications WHERE NOT is_read")

              if [[ "$notifications_count" -ne 0 ]]; then
                icon="notification"
              else
                icon="none"
              fi

              if [[ "$is_dnd" == "true" ]]; then
                icon="dnd-$icon"
              fi

              printf '{"text": "%s", "alt": "%s"}' "$notifications_count" "$icon"
            '';
        }
        + "/bin/xfce-notifyd-waybar";
      on-click = "xfconf-query -c xfce4-notifyd -p /do-not-disturb -T";
      on-click-right = lib.getExe pkgs.xfce.xfce4-notifyd;
      escape = true;
      signal = 1;
    };
    "privacy" = {
      icon-spacing = 0;
      icon-size = 16;
      transition-duration = 250;
      screenshare = {
        type = "screenshare";
        tooltip = true;
        tooltip-icon-size = 24;
      };
      audio-in = {
        type = "audio-in";
        tooltip = true;
        tooltip-icon-size = 24;
      };
    };
  };

  # TODO: figure out magic waybar css styling (does it pick up `~/.config/gtk-3.0/gtk.css` ?)
  style = let
    colors = config.lib.stylix.colors.withHashtag;
  in
    # css
    ''
      @define-color base00 ${colors.base00}; @define-color base08 ${colors.base08};
      @define-color base01 ${colors.base01}; @define-color base09 ${colors.base09};
      @define-color base02 ${colors.base02}; @define-color base0A ${colors.base0A};
      @define-color base03 ${colors.base03}; @define-color base0B ${colors.base0B};
      @define-color base04 ${colors.base04}; @define-color base0C ${colors.base0C};
      @define-color base05 ${colors.base05}; @define-color base0D ${colors.base0D};
      @define-color base06 ${colors.base06}; @define-color base0E ${colors.base0E};
      @define-color base07 ${colors.base07}; @define-color base0F ${colors.base0F};

      * {
        font-family: Symbols Nerd Font, FontAwesome, ${config.stylix.fonts.sansSerif.name};
        font-size: 16px;
        font-weight: 500;
      }

      .modules-left,
      .modules-center,
      .modules-right,
      window#waybar {
        background-color: @base00;
        color: @base05;
        border-radius: 12px;
      }
      window#waybar {
        border: 1px solid @base01;
      }

      .modules-left,
      .modules-center,
      .modules-right {
        margin: 1px;
        padding-left: 3px;
      } /* for leftmost modules */

      button {
        border-radius: 6px;
        box-shadow: inset 0 -3px transparent;
      }

      button:hover {
        background: inherit;
        box-shadow: inset 0 -3px transparent;
      }

      label:focus {
        background-color: #000000;
      }

      tooltip label {
        color: @base05;
      }

      tooltip {
        background: @base01;
        border: 1px solid @base0D;
        border-radius: 16px;
        padding: 2em;
      }

      window#bottom.modules-center {
        background-color: transparent
      }

      #backlight,
      #battery,
      #clock,
      #cpu,
      #custom-launcher,
      #custom-notification,
      #idle_inhibitor,
      #language,
      #memory,
      #network,
      #power-profiles-daemon,
      #privacy,
      #privacy-item,
      #taskbar button,
      #taskbar,
      #tray,
      #wireplumber,
      #workspaces button,
      #workspaces {
        all: unset;
        border-radius: 9px;
        background-color: @base01;
        margin: 3px 3px 3px 0;
        padding: 0 0.42em;
      }
      #clock {
        background-color: @base00;
      }

      #backlight,
      #battery,
      #custom-launcher,
      #custom-notification,
      #idle_inhibitor,
      #power-profiles-daemon,
      #wireplumber {
        padding: 0 0.5em;
      }

      #battery.critical:not(.charging) {
        background-color: @base09;
        color: @base00;
      }

      #custom-launcher,
      #custom-notification,
      #idle_inhibitor,
      #language,
      #power-profiles-daemon {
        padding: 0;
        min-width: 1.7em;
      }

      #power-profiles-daemon.performance {
        background-color: @base0D;
        color: @base00;
      }

      #power-profiles-daemon.power-saver {
        background-color: @base0A;
        color: @base00;
      }

      #privacy,
      #taskbar,
      #workspaces {
        padding: 0;
      }

      #privacy-item,
      #taskbar button,
      #workspaces button {
        border-radius: 6px;
        min-width: 1.35em;
        padding: 0;
      }

      #privacy-item.audio-in {
        background-color: @base0E;
        color: @base00;
        margin: 3px;
      }

      #privacy-item.screenshare {
        background-color: @base0C;
        color: @base00;
        margin-right: 0;
      }

      #taskbar button {
        padding: 0 0.4em;
        margin: 3px 3px 3px 0;
      }

      #taskbar button.active,
      #workspaces button.active {
        background-color: @base02;
      }

      #taskbar button.active:hover,
      #taskbar button:hover,
      #workspaces button:hover,
      #workspaces button.active:hover {
        background-color: @base0D;
        color: @base00;
      }

      #taskbar.empty {
        background-color: transparent;
      }

      #tray>.needs-attention {
        -gtk-icon-effect: highlight;
        background-color: @base08;
      }

      #tray>.passive {
        -gtk-icon-effect: dim;
      }

      #taskbar,
      #workspaces {
        padding-left: 3px;
      }
    '';
}