nixos/home-manager/waybar.nix

{ config, pkgs, lib, ... }:

{
  options.is-laptop = lib.mkEnableOption "whether the computer is a laptop";

  config = {
    home.file."${config.xdg.configHome}/waybar/config.jsonc" = {
      text =
        builtins.toJSON {
          height = 35;
          spacing = 4;

          modules-left = [
            "systemd-failed-units"
            "custom/music-back"
            "mpris"
            "custom/music-next"
          ];
          modules-center = [
            "clock"
          ];
          modules-right = [
            "bluetooth"
            "privacy"
            "pulseaudio"
            "cpu"
            "memory"
            "tray"
          ] ++
          (if (config.is-laptop) then
            [ "network" "power-profiles-daemon" "battery" ]
          else [ ]) ++
          [
            "custom/power"
          ];

          systemd-failed-units = {
            hide-on-ok = true; # Hide if there are zero failed units.
            format = "✗ {nr_failed}";
            format-ok = "✓ systemd is ok but waybar is not";
            system = true; # monitor sytem units
            user = true; # monitor user units
          };
          "custom/music-back" = {
            format = "⏴";
            tooltip = true;
            tooltip-format = "Play previous song";
            on-click = "${lib.getExe pkgs.playerctl} previous";
          };
          mpris = {
            format = "{status_icon} {dynamic}";
            dynamic-order = [ "title" "artist" ];
            status-icons = {
              paused = "⏸";
            };
          };
          "custom/music-next" = {
            format = "⏵";
            tooltip = true;
            tooltip-format = "Play next song";
            on-click = "${lib.getExe pkgs.playerctl} next";
          };
          clock = {
            interval = 1;
            format = "{:%a %F %H:%M:%S}";
            tooltip-format = "<tt><small>{calendar}</small></tt>";
            calendar = {
              mode = "year";
              mode-mon-col = 3;
              weeks-pos = "right";
              on-scroll = 1;
              format = {
                months = "<span color='#ffead3'><b>{}</b></span>";
                days = "<span color='#ecc6d9'><b>{}</b></span>";
                weeks = "<span color='#99ffdd'><b>W{}</b></span>";
                weekdays = "<span color='#ffcc66'><b>{}</b></span>";
                today = "<span color='#ff6699'><b><u>{}</u></b></span>";
              };
            };
            actions = {
              on-click-right = "mode";
              on-scroll-up = "shift_up";
              on-scroll-down = "shift_down";
            };
          };

          bluetooth = {
            format = " {status}";
            format-disabled = ""; # an empty format will hide the module
            format-connected = " {num_connections} connected";
            on-click = lib.getExe pkgs.overskride;
          };
          pulseaudio = {
            # "scroll-step": 1, // %, can be a float
            "format" = "{volume}% {icon} {format_source}";
            "format-bluetooth" = "{volume}% {icon} {format_source}";
            "format-bluetooth-muted" = " {icon} {format_source}";
            "format-muted" = " {format_source}";
            "format-source" = "{volume}% ";
            "format-source-muted" = "";
            "format-icons" = {
              "headphone" = "";
              "hands-free" = "";
              "headset" = "";
              "phone" = "";
              "portable" = "";
              "car" = "";
              "default" = [ "" "" "" ];
            };
            "on-click" = lib.getExe pkgs.pavucontrol;
          };
          cpu = {
            format = "{usage}% ";
            tooltip = false;
          };
          memory = {
            format = "{}% ";
          };
          tray = {
            spacing = 10;
          };
          "network" = {
            # "interface": "wlp2*", // (Optional) To force the use of this interface
            "format-wifi" = " ({signalStrength}%)";
            "format-ethernet" = "{ipaddr}/{cidr} ";
            "tooltip-format" = "{ifname} via {gwaddr}  ({ipaddr}/{cidr})";
            "format-linked" = "{ifname} (No IP) ";
            "format-disconnected" = "Disconnected ⚠";
            "format-alt" = "{ifname}: {ipaddr}/{cidr}";
          };
          "power-profiles-daemon" = {
            "format" = "{icon}";
            "tooltip-format" = "Power profile: {profile}\nDriver: {driver}";
            "tooltip" = true;
            "format-icons" = {
              "default" = "";
              "performance" = "";
              "balanced" = "";
              "power-saver" = "";
            };
          };
          "battery" = {
            "states" = {
              # "good": 95,
              "warning" = 30;
              "critical" = 5;
            };
            "format" = "{capacity}% {icon}";
            "format-full" = "{capacity}% {icon}";
            "format-charging" = "{capacity}% ";
            "format-plugged" = "{capacity}% ";
            "format-alt" = "{time} {icon}";
            # "format-good": "", // An empty format will hide the module
            # "format-full": "",
            "format-icons" = [ "" "" "" "" "" ];
          };
          "custom/power" =
            let
              power-menu = pkgs.writeText "power_menu.xml" ''
                <?xml version="1.0" encoding="UTF-8"?>
                <interface>
                  <object class="GtkMenu" id="menu">
                    <child>
                      <object class="GtkMenuItem" id="lock">
                        <property name="label">Lock 🔒</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkSeparatorMenuItem" id="delimiter1"/>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="reboot">
                        <property name="label">Reboot ♻️</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="poweroff">
                        <property name="label">Poweroff 💤</property>
                      </object>
                    </child>
                  </object>
                </interface>
              '';
            in
            {
              "format" = "⏻";
              "tooltip" = false;
              "menu" = "on-click";
              "menu-file" = power-menu;
              "menu-actions" = {
                "lock" = "lock-and-power-off-screen";
                "reboot" = "reboot";
                "poweroff" = "poweroff";
              };
            };
        };
    };
    home.file."${config.xdg.configHome}/waybar/style.css" = {
      text = ''
        ${builtins.readFile ./default-waybar-style.css}

        window#waybar {
          background: linear-gradient(
            to right,
            rgb(131, 80, 117) 15%,
            rgb(158, 103, 143) 30%,
            rgb(131, 80, 117) 45%,
            #db88c5
          );
          color: black;
        }

        #systemd-failed-units {
          padding-left: 30px;
          padding-right: 30px;
          background-color: red;
        }

        #mpris {
          color: white;
        }

        #custom-music-back, #custom-music-next {
          font-size: 20px;
          color: white;
        }

        #custom-music-back {
          padding: 0 10px 0 15px;
        }
        #custom-music-next {
          padding: 0 10px;
        }

        #clock {
          background: unset;
          color: white;
        }

        #privacy *, #pulseaudio, #cpu, #memory, #tray, #network, #power-profiles-daemon, #battery {
          background-color: unset;
          color: black;
        }

        #custom-power {
          padding-left: 15px;
          padding-right: 15px;
          font-size: 30px;
          background-color: rebeccapurple;
          color: white;
        }
      '';
    };
  };
}