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

let 
  cfg = config.samfelag.modules.desktop.polybar;
in {

  options.samfelag.modules.desktop.polybar = {
    enable = lib.mkEnableOption "polybar";
  };

  config = lib.mkIf cfg.enable {

    # - Configuration ----------------------------

    services.polybar = {
      enable = true;

      package = pkgs.polybar.override {
        i3Support = true;
        pulseSupport = true;
      };

      config = {

        # - Colors -------------------------------

        "colors" = {
	  "background" = "#222";
	  "background-alt" = "#444";
	  "foreground" = "#dfdfdf";
	  "foreground-alt" = "#555";
	  "primary" = "#ffb52a";
	  "secondary" = "#e60053";
	  "alert" = "#bd2c40";
        };

        # - Mainbar ------------------------------
        
	"bar/mainbar-i3" = {
	  "monitor" = "\${env:MONITOR}";
	  "monitor-strict" = "false";
	  "bottom" = "false";
	  "fixed-center" = "true";
	  "width" = "100%";
	  "height" = "30";
	  
	  "background" = "\${colors.background}";
	  "foreground" = "\${colors.foreground}";
	  
	  "radius" = "0.0";
	  "line-size" = "2";
	  "line-color" = "#000000";
	  "border-color" = "#000000";
	  
	  "padding-left" = "1";
	  "padding-right" = "1";
	  
	  "module-margin-left" = "0";
	  "module-margin-right" = "0";
	  
	  "font-0" = "\"Iosevka:style=Regular:size=15;2\"";
	  "font-1" = "\"Iosevka:size=16;3\"";
	  "font-2" = "\"Iosevka:style=Regular:pixelsize=10;1\"";
	  "font-3" = "\"Iosevka:style=Solid:pixelsize=10;1\"";
	  "font-4" = "\"Iosevka:pixelsize=10;1\"";
	  
	  "modules-left" = "i3"; 
	  "modules-center" = "date";
	  "modules-right" = "wifi pulseaudio battery";
	  
	  "separator" = "\" : \"";
	  
	  "tray-position" = "left";
	  "tray-detached" = "false";
	  "tray-maxsize" = "20";
	  "tray-background" = "\${colors.background}";
	  "tray-offset-x" = "0";
	  "tray-offset-y" = "0";
	  "tray-padding" = "4";
	  "tray-scale" = "1.0";
	  
	  "enable-ipc" = "true";
	  
	  "click-left" = "";
	  "click-middle" = "";
	  "click-right" = "";
	  "scroll-up" = "i3wm-wsnext";
	  "scroll-down" = "i3wm-wsprev";
	  "double-click-left" = "";
	  "double-click-middle" = "";
	  "double-click-right" = "";
	  
	  "cursor-click" = "";
	  "cursor-scroll" = "";
        };

        # - Module: i3 ---------------------------

        "module/i3" = {
	  "type" = "internal/i3";
	  "format" = "<label-state> <label-mode>";
	  "index-sort" = "true";
	  "wrapping-scroll" = "false";
	  
	  "label-mode-padding" = "2";
	  "label-mode-foreground" = "#000";
	  "label-mode-background" = "\${colors.primary}";
	  
	  "label-focused" = "%index%";
	  "label-focused-background" = "\${colors.background-alt}";
	  "label-focused-underline" = "\${colors.secondary}";
	  "label-focused-padding" = "2";
	  
	  "label-unfocused" = "%index%";
	  "label-unfocused-padding" = "2";
	  
	  "label-visible" = "%index%";
	  "label-visible-background" = "\${self.label-focused-background}";
	  "label-visible-underline" = "\${colors.primary}";
	  "label-visible-padding" = "\${self.label-focused-padding}";
	  
	  "label-urgent" = "%index%";
	  "label-urgent-background" = "\${colors.alert}";
	  "label-urgent-padding" = "2";
        };
	
        # - Module: date -------------------------

        "module/date" = {
	  "type" = "internal/date";
	  "interval" = "1";
	  
	  "date" = "%A, %d %B %Y";
	  "time" = "%H:%M:%S";
	  
	  "time-alt" = "%H:%M:%S %Z (%z)";
	  "date-alt" = "%Y-%m-%d";
	  
	  "format-prefix" = "";
	  "format-prefix-foreground" = "\${colors.foreground-alt}";
	  "format-underline" = "";
	  
	  "label" = "%date% · %time%";
        };
	
        # - Module: pulseaudio -------------------

        "module/pulseaudio" = {
	  "type" = "internal/pulseaudio";
	  
	  "format-volume" = "<label-volume> <bar-volume>";
	  "label-volume" = "VOL %percentage%%";
	  "label-volume-foreground" = "\${colors.foreground-alt}";
	  
	  "label-muted" = "muted";
	  "label-muted-foreground" = "#666";
	  
	  "bar-volume-width" = "10";
	  "bar-volume-foreground-0" = "#55aa55";
	  "bar-volume-foreground-1" = "#55aa55";
	  "bar-volume-foreground-2" = "#55aa55";
	  "bar-volume-foreground-3" = "#55aa55";
	  "bar-volume-foreground-4" = "#55aa55";
	  "bar-volume-foreground-5" = "#f5a70a";
	  "bar-volume-foreground-6" = "#ff5555";
	  "bar-volume-gradient" = "false";
	  "bar-volume-indicator" = "|";
	  "bar-volume-indicator-font" = "0";
	  "bar-volume-fill" = "-";
	  "bar-volume-fill-font" = "0";
	  "bar-volume-empty" = "-";
	  "bar-volume-empty-font" = "0";
	  "bar-volume-empty-foreground" = "\${colors.foreground-alt}";
        };

        # - Module: battery ----------------------
	
	"module/battery" = {
	  "type" = "internal/battery";
	  "battery" = "BAT0";
	  "adapter" = "AC";
	  "full-at" = "98";
	  
	  "format-charging-prefix" = "\"▴\"";
	  "format-charging" = "<label-charging>";
	  "format-charging-foreground" = "#55aa55";
	  "format-charging-underline" = "";
	  
	  "format-discharging-prefix" = "\"▾\"";
	  "format-discharging" = "<label-discharging>";
	  "format-discharging-foreground" = "#f5a70a";
	  "format-discharging-underline" = "";
	  
	  "format-full" = "FULL BATTERY";
	  "format-full-foreground" = "#55aa55";
	  "format-full-underline" = "\${self.format-charging-underline}";
	  
	  "ramp-capacity-0" = "";
	  "ramp-capacity-1" = "";
	  "ramp-capacity-2" = "";
	  "ramp-capacity-foreground" = "\${colors.foreground-alt}";
        };
      };

      script = "polybar --reload mainbar-i3 &";
      #  #!/usr/bin/env bash

      #  # Terminate already running bar instances
      #  killall -q polybar
      #  
      #  # Wait until the processes have been shut down
      #  while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done
      #  
      #  for m in $(polybar --list-monitors | cut -d":" -f1); do
      #  	WIRELESS=$(ls /sys/class/net/ | grep ^wl | awk 'NR==1{print $1}') MONITOR=$m polybar --reload mainbar-i3 &
      #  done
      #  
      #  echo "Bars launched..."
      # '';
    };
  };
}