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

let
  inherit (lib) singleton;
  inherit (config.lib.stylix.colors) base00 base01 base04 base05 base0D;
  inherit (pkgs) ironbar inotify-tools;
  inherit (builtins) toJSON;

  mullvadScript = "ironbar/mullvad.fish";
in
{
  home.packages = [ ironbar ];

  xdg.configFile."ironbar/config.json".text = toJSON {
    name = "main";
    icon_theme = "Fluent-dark";
    position = "bottom";
    anchor_to_edges = true;

    start = [
      {
        name = "startMenu";
        type = "label";
        label = "❄";
        on_mouse_enter = "rofi -show drun";
      }
      {
        type = "script";
        on_click_left = "mullvad relay set location any && mullvad relay set location us";
        cmd = "~/.config/${mullvadScript}";
        mode = "watch";
      }
    ];

    center = singleton {
      type = "launcher";
      icon_size = 39;
      favorites = [
        "librewolf"
        "kitty"
        "thunar"
        "org.qutebrowser.qutebrowser"
        "anki"
      ];
    };

    end = [
      {
        type = "volume";
        format = "{icon}  {percentage}%";
      }
      {
        type = "upower";
        show_if = "upower -e | grep BAT";
      }
      {
        type = "clock";
        format = "%x（%a）%R";
      }
      {
        type = "notifications";
      }
    ];
  };

  xdg.configFile."ironbar/style.css".text = /* css */ ''
    * {
      font-family: "Noto Sans CJK JP", "Font Awesome 6 Free Solid";
      font-size: 16px;
      text-shadow: 2px 2px #${base00};
      border: none;
      border-radius: 0;
      outline: none;
      font-weight: 500;
      background: none;
      color: #${base05};
    }

    .background {
      background: alpha(#${base00}, 0.925);
    }

    button:hover {
      background: #${base01};
    }

    #bar {
      border-top: 1px solid #${base01};
    }

    .label, .script, .tray {
      padding-left: 0.5em;
      padding-right: 0.5em;
    }

    .notifications button {
      padding-left: 0.2em;
      padding-right: 0.7em;
    }

    slider {
      background: #${base0D};
    }

    trough {
      background: alpha(#${base04}, 0.4);
    }

    .upower {
      padding-left: 0.2em;
      padding-right: 0.2em;
    }

    .upower .label {
      padding-left: 0;
      padding-right: 0;
    }

    .popup {
      border: 1px solid #${base01};
      padding: 1em;
    }

    .clock {
      padding-right: 0.4em;
    }

    .popup-clock .calendar-clock {
      font-family: "Maple Mono";
      font-size: 2.5em;
      padding-bottom: 0.1em;
    }

    .popup-clock .calendar .header {
      padding-top: 1em;
      border-top: 1px solid #${base01};
      font-size: 1.5em;
    }

    .popup-clock .calendar {
      padding: 0.2em 0.4em;
    }

    .popup-clock .calendar:selected {
      color: #${base0D};
    }

    .launcher .item {
      padding-left: 1em;
      padding-right: 1em;
      margin-right: 4px;
    }

    button:active {
      background: #${base04};
    }

    .launcher .open {
      box-shadow: inset 0 -2px #${base04};
    }

    .launcher .focused {
      box-shadow: inset 0 -2px #${base0D};
      background: #${base01};
    }

    .popup-launcher {
      padding: 0;
    }

    .popup-launcher .popup-item:not(:first-child) {
      border-top: 1px solid #${base01};
    }

    #startMenu {
      padding-left: 1em;
      padding-right: 0.5em;
    }
  '';

  xdg.configFile.${mullvadScript} = {
    executable = true;
    text = /* fish */ ''
      #!/usr/bin/env fish

      sleep 2

      function get_mullvad_status
        if test -z "$inside"
          set inside true
          test -n "$initialized" && sleep 0.2

          set MULLVAD (mullvad status | head -1)

          set LOCATION (echo "$MULLVAD" | choose 4.. | sed \
            -e 's/Ashburn.*/アッシュバーン/g' \
            -e 's/Atlanta.*/アトランタ/g' \
            -e 's/Boston.*/ボストン/g' \
            -e 's/Charlotte.*/シャーロット/g' \
            -e 's/Chicago.*/シカゴ/g' \
            -e 's/Cleveland.*/クリーブランド/g' \
            -e 's/Dallas.*/ダラス/g' \
            -e 's/Detroit.*/デトロイト/g' \
            -e 's/Denver.*/デンバー/g' \
            -e 's/Honolulu.*/ホノルル/g' \
            -e 's/Houston.*/ヒューストン/g' \
            -e 's/Jackson.*/ジャクソン/g' \
            -e 's/Los Angeles.*/ロサンゼルス/g' \
            -e 's/Louisville.*/ルイビル/g' \
            -e 's/McAllen.*/マッカレン/g' \
            -e 's/Miami.*/マイアミ/g' \
            -e 's/Milwaukee.*/ミルウォーキー/g' \
            -e 's/Minneapolis.*/ミネアポリス/g' \
            -e 's/New York.*/ニューヨーク/g' \
            -e 's/Oklahoma.*/オクラホマシティ/g' \
            -e 's/Philadelphia.*/フィラデルフィア/g' \
            -e 's/Phoenix.*/フィニックス/g' \
            -e 's/Piscataway.*/ピスカタウェイ/g' \
            -e 's/Portland.*/ポートランド/g' \
            -e 's/Raleigh.*/ローリー/g' \
            -e 's/Richmond.*/リッチモンド/g' \
            -e 's/Salt Lake.*/ソルトレイクシティ/g' \
            -e 's/San Francisco.*/サンフランシスコ/g' \
            -e 's/San Jose.*/サンノゼ/g' \
            -e 's/Seattle.*/シアトル/g' \
            -e 's/Secaucus.*/セコーカス/g' \
            -e 's/Sioux Falls.*/スーフォールズ/g' \
            -e 's/St. Louis.*/セントルイス/g' \
            -e 's/Stamford.*/スタンフォード/g' \
            -e 's/Washington.*/ワシントン/g'
          )

          echo "$LOCATION"

          set -e inside
        end
      end

      get_mullvad_status
      set initialized true

      ${inotify-tools}/bin/inotifywait -q -e close_write,moved_to,create -m /etc/mullvad-vpn |
      while read directory events filename
        get_mullvad_status
      end
    '';
  };
}