{ config, lib, pkgs, ... }:
let
  # waybar-systemd = pkgs.writeShellApplication {
  #   name = "waybar-systemd.sh";
  #   runtimeInputs = [ ];
  #   text = ''
  #     failed_user="$(systemctl --plain --no-legend --user list-units --state=failed | awk '{ print $1 }')"
  #     failed_system="$(systemctl --plain --no-legend list-units --state=failed | awk '{ print $1 }')"

  #     failed_systemd_count="$(echo -n "$failed_system" | grep -c '^')"
  #     failed_user_count="$(echo -n "$failed_user" | grep -c '^')"

  #     text=$(( failed_systemd_count + failed_user_count ))

  #     if [ "$text" -eq 0 ]; then
  #         printf '{"text": ""}\n'
  #     else
  #         tooltip=""

  #         [ -n "$failed_system" ] && tooltip="Failed system services:\n\n${failed_system}\n\n${tooltip}"
  #         [ -n "$failed_user" ]   && tooltip="Failed user services:\n\n${failed_user}\n\n${tooltip}"

  #         tooltip="$(printf  "%s" "$tooltip" | perl -pe 's/\n/\\n/g' | perl -pe 's/(?:\\n)+$//')"

  #         printf '{"text": "%s", "tooltip": "%s" }\n' "$text" "$tooltip"
  #     fi
  #   '';
  # };
in
{
  programs.waybar = {
    enable = true;
    systemd.enable = true;

    settings = [{
      layer = "bottom";
      height = 25;
      position = "top";
      margin-top = 0;
      margin-left = 0;
      margin-right = 0;
      margin-bottom = 0;
      modules-left = [ "sway/workspaces" "sway/mode" ];
      modules-right = [ "pulseaudio" "network" "battery" "clock" "tray" ];
      "sway/workspaces" = {
        format = "{name}";
        disable-scroll = true;
      };
      "sway/mode" = { format = "{}"; };
      tray = { spacing = 10; };
      clock = { format = "{: %a %b %d %R}"; };
      battery = {
        states = {
          warning = 30;
          critical = 15;
        };
        format = "ac:{capacity}%";
        tooltip = true;
        tooltip-format = "{timeTo} ({capacity}%)";
      };
      # "custom/systemd" = {
      #   exec = "${waybarSystemd}/bin/waybar-systemd";
      #   return-type = "json";
      #   interval = 10;
      # };
      pulseaudio = {
        format = "vol:{volume}%";
        format-bluetooth = "bt:{volume}%";
        format-bluetooth-muted = "bt:{volume}%";
        format-muted = "vol:{volume}%";
        on-click = "pavucontrol";
      };
      "network" = {
        format-wifi = "{essid}:{signalStrength}%";
        format-ethernet = "{ipaddr}/{cidr}";
        format-linked = "{ifname} (No IP)";
        format-disconnected = "network unavailable";
        format-alt = "{ifname}: {ipaddr}/{cidr}";
        tooltip = false;
      };
    }];
  };

  programs.waybar.style = pkgs.writeText "style.css" ''
    * {
      border-radius: 0;
      border: none;
      margin: 0;
      min-height: 0;
      padding: 0;
      font-family: Source Code Pro;
      font-size: 15px;
    }
    window#waybar {
      background-color: #282A36;
      color: #eee;
    }
    #workspaces button {
      padding: 0 3px;
      background-color: transparent;
      color: #eee;
    }
    #workspaces button.focused {
      background-color: #285577;
      border: 1px solid #4c7899;
    }
    #clock,
    #battery,
    #network,
    #pulseaudio,
    #tray,
    #mode {
      padding-left: 10px;
      padding-right: 10px;
    }
    #mode {
      /* No styles */
    }
    #tray {
      /* No styles */
    }
    #clock {
      /* No styles */
    }
    #battery {
      animation-timing-function: linear;
      animation-iteration-count: infinite;
      animation-direction: alternate;
    }
    #battery.discharging {
      color: #90a1ad;
    }
    #battery.charging {
      color: #fffff8;
    }
    #battery.warning {
      border-bottom: 2px solid #ff9e21;
    }
    #battery.critical {
      border-bottom: 2px solid #ff3121;
    }
    #network {
      /* No styles */
    }
    #network.disconnected {
      color: orange;
    }
    #pulseaudio {
      /* No styles */
    }
    #pulseaudio.muted {
      color: #90a1ad;
    }
  '';
}