{ config, pkgs, ... }:
let
  mod = "Mod4";
in
  {
    services = {
      network-manager-applet.enable = true;

      polybar = {
        enable = true;
        script = "polybar main_bar &";
        config = {
          "bar/main_bar" = {
            bottom = "false";
            height = 50;
            fixed-center = "true";
            line-size = 6;
            padding-right = "1%";
            module-margin-left = 1;
            module-margin-right = 1;
            wm-restack = "bspwm";
            modules-left = "bspwm xwindow";
            modules-center = "date";
            modules-right = "org-clock volume backlight filesystem memory cpu battery network";
          };
          "module/bspwm" = {
            type = "internal/bspwm";
            format = "<label-state> <label-mode>";
            label-monocle = "M";
            label-floating = "S";
            fuzzy-match = "true";
            ws-icon-0 = "1;";
            ws-icon-1 = "2;";
            ws-icon-2 = "3;";
            ws-icon-3 = "4;";
            ws-icon-4 = "5;♞";
            ws-icon-default = "";
            label-mode-padding = "2";
            label-focused = "%icon%";
            label-focused-padding = 2;
            label-empty = '''';
            label-occupied = "%icon%";
            label-occupied-padding = 2;
            label-urgent = "%icon%";
            label-urgent-padding = 2;
          };
          "module/date" = {
            type = "internal/date";
            interval = 5;
            date = "%m-%d %a";
            time = "%H:%M";
            label = "%date% %time%";
          };
          "module/battery" = {
            type = "internal/battery";
            battery = "BAT1";
            adapter = "ADP1";
            full-at = 96;
            format-charging = " <label-charging>";
            format-discharging = "<ramp-capacity> <label-discharging>";
            format-full = " ";
            ramp-capacity-0 = "";
            ramp-capacity-1 = "";
            ramp-capacity-2 = "";
            ramp-capacity-3 = "";
            ramp-capacity-4 = "";
          };
          "settings" = {screenchange-reload = "true";};
          "module/xwindow" = {
            type = "internal/xwindow";
            label = "%title:0:30:...%";
            label-padding = 10;
          };
          "module/network" = {
            type = "internal/network";
            interface = "wlp1s0";
            interval = "3.0";
            format-connected = "<label-connected>";
            label-connected = " %essid%";
          };
          "module/cpu" = {
            type = "internal/cpu";
            label = " %percentage:2%%";
          };
          "module/memory" = {
            type = "internal/memory";
            label = " %percentage_used%%";
          };
          "module/filesystem" = {
            type = "internal/fs";
            mount-0 = "/";
            mount-1 = "/home";
            label-mounted = " %percentage_used%%";
          };
          "module/volume" = {
            type = "internal/alsa";
            label-volume = " %percentage%";
            label-muted = "";
            click-left = "pactl set-sink-mute 0 toggle";
          };
          "module/backlight" = {
            type = "internal/backlight";
            format = "<ramp>";
            card = "intel_backlight";
            ramp-0 = "🌕";
            ramp-1 = "🌔";
            ramp-2 = "🌓";
            ramp-3 = "🌒";
            ramp-4 = "🌑";
          };
        };
      };
    };

    xsession = {
      enable = true;
      windowManager.i3 = {
        enable = true;
        package = pkgs.i3-gaps;
        config = {
          startup = [
            { command = "exec i3-sensible-terminal"; always = true; notification = false; }
          ];

          bars = [];
          gaps = {
            inner = 12;
            outer = 0;
            smartGaps = true;
            smartBorders = "on";
          };

          modifier = mod;
          keybindings = {
            "${mod}+Return" = "exec i3-sensible-terminal";
            "${mod}+Shift+q" = "kill";
            "${mod}+d" = "exec ${pkgs.rofi}/bin/rofi -show combi -combi-modi window#run#ssh -modi combi";
            "${mod}+f" = "fullscreen toggle";
            "${mod}+l" = "exec loginctl lock-session";
            "${mod}+Shift+e" = "exec i3-msg exit";
          };
        };
      };
    };
  }