{ pkgs, lib, ... }:
{
  services.polybar = {
    enable = true;
    script = ""; # required but we start polybar via bspwm, so dont start it here.
    config =
      let
        theme = import ../theme.nix "light";
        colors = theme.colors;
      in
      rec {
        common-bar = {
          width = "100%";
          height = "${theme.sizing.str.xxl}pt";
          radius = 0;

          override-redirect = true;

          #;dpi = 96

          background-0 = "#efefef";
          background-1 = colors.background;
          background-2 = colors.background;
          background-3 = colors.background;
          background-4 = colors.background;
          background-5 = "#2e2e2e";

          foreground = colors.foreground;
          line-size = "3pt";

          border-size = "${theme.sizing.str.xs}pt";
          border-color = colors.primary;

          padding-left = 0;
          padding-right = 1;

          module-margin = 1;

          separator = "|";
          separator-foreground = colors.disabled;

          font-0 = "Charcoal;2";
          # wm-restack = "bspwm";

          cursor-click = "pointer";
          cursor-scroll = "ns-resize";

          enable-ipc = true;
        };

        "global/wm" = {
          margin-bottom = 0;
        };

        "bar/primary" = lib.recursiveUpdate common-bar {
          monitor = "DP-2";
          modules-left = "xworkspaces xwindow";
          modules-right = "filesystem memory cpu wlan date";
        };

        "bar/secondary" = lib.recursiveUpdate common-bar {
          monitor = "HDMI-1";
          modules-left = "xworkspaces";
          modules-center = "date";

          modules-right = "systray";
        };

        "module/xworkspaces" = {
          type = "internal/xworkspaces";

          group-by-monitor = true;
          pin-workspaces = true;

          label-active = "%name%";
          label-active-background = colors.background-alt;
          label-active-underline = colors.primary;
          label-active-padding = 1;

          label-occupied = "%name%";
          label-occupied-padding = 1;

          label-urgent = "%name%";
          label-urgent-background = colors.alert;
          label-urgent-padding = 1;

          label-empty = "%name%";
          label-empty-foreground = colors.disabled;
          label-empty-padding = 1;
        };

        "module/systray" = {
          type = "internal/tray";
          format-margin = "8pt";
          tray-spacing = "16pt";
        };

        "module/xwindow" = {
          type = "internal/xwindow";
          label = "%title:0:60:...%";
        };

        "module/filesystem" = {
          type = "internal/fs";
          interval = 25;

          mount-0 = "/";

          label-mounted = "%{F${colors.primary}}%mountpoint%%{F-} %percentage_used%%";

          label-unmounted = "%mountpoint% not mounted";
          label-unmounted-foreground = colors.disabled;
        };

        "module/pulseaudio" = {
          type = "internal/pulseaudio";
          format-volume-prefix = "VOL ";
          format-volume-prefix-foreground = colors.primary;
          format-volume = "<label-volume>";

          label-volume = "%percentage%%";

          label-muted = "muted";
          label-muted-foreground = colors.disabled;
        };

        "module/xkeyboard" = {
          type = "internal/xkeyboard";
          blacklist-0 = "num lock";

          label-layout = "%layout%";
          label-layout-foreground = colors.primary;

          label-indicator-padding = 2;
          label-indicator-margin = 1;
          label-indicator-foreground = colors.background;
          label-indicator-background = colors.secondary;
        };

        "module/memory" = {
          type = "internal/memory";
          interval = 2;
          format-prefix = "RAM ";
          format-prefix-foreground = colors.primary;
          label = "%percentage_used:2%%";
        };

        "module/cpu" = {
          type = "internal/cpu";
          interval = 2;
          format-prefix = "CPU ";
          format-prefix-foreground = colors.primary;
          label = "%percentage:2%%";
        };

        "network-base" = {
          type = "internal/network";
          interval = 5;
          format-connected = "<label-connected>";
          format-disconnected = "<label-disconnected>";
          label-disconnected = "%{F${colors.primary}}%ifname%%{F${colors.disabled}} disconnected";
        };

        "module/wlan" = {
          "inherit" = "network-base";
          interface-type = "wireless";
          label-connected = "%{F${colors.primary}}%ifname%%{F-} %essid% %local_ip%";
        };

        "module/eth" = {
          "inherit" = "network-base";
          interface-type = "wired";
          label-connected = "%{F${colors.primary}}%ifname%%{F-} %local_ip%";
        };

        "module/date" = {
          type = "internal/date";
          interval = 1;

          date = "%l:%M%P";
          date-alt = "%Y-%m-%d %H:%M:%S";

          label = "%date%";
          label-foreground = colors.primary;
        };

        "settings" = {
          screenchange-reload = true;
          pseudo-transparency = false;
          #; vim:ft=dosini
        };
      };
  };
}