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

let
  cfg = config.my.graphical.wayland.eww;
in {
  options.my.graphical.wayland.eww = {
    enable = lib.mkEnableOption null;
  };

  config = let
    inherit (pkgs) eww;
  in lib.mkIf cfg.enable {
    home.packages = [ eww ];

    xdg.configFile = builtins.mapAttrs (name: src: {
      source = pkgs.substituteAll ({
        inherit src;
        acpi = "${pkgs.acpi}/bin/acpi";
        hyprctl = "${config.wayland.windowManager.hyprland.package}/bin/hyprctl";
        ruby = "${pkgs.ruby}/bin/ruby";
        soyjak = "${self}/assets/pointingSoyjaks.png";
      } // theme);
      target = "eww/${name}";
      executable = builtins.match "\\./scripts/.*" name != null;
    }) (self.lib.filterNixReadDir ./.) // {
      "eww/_mocha.scss".text = builtins.concatStringsSep "\n"
        (lib.mapAttrsToList (name: value: "\$${name}: #${value};") theme);
    };

    wayland.windowManager.hyprland.settings = let
      inherit (config.my.graphical.wayland.hyprland) mainMod;
      toggleSoyjaks = pkgs.writeShellScript "toggle-soyjaks" ''
        if ${eww}/bin/eww active-windows | ${pkgs.gnugrep}/bin/grep -q 'soyjak-layer'; then
          ${eww}/bin/eww close soyjak-layer
        else
          ${eww}/bin/eww open soyjak-layer
        fi
      '';
    in {
      bind = [
        "${mainMod} CTRL, S, exec, ${toggleSoyjaks}"
      ];
    };

    systemd.user = {
      services = {
        eww = {
          Unit = {
            Description = "Eww background daemon";
            partOf = [ "tray.target" ];
          };
          Service = {
            Environment = "PATH=${lib.makeBinPath (with pkgs; [ coreutils bash ])}";
            ExecStart = "${eww}/bin/eww daemon --no-daemonize";
          };
          Install = {
            WantedBy = [ "tray.target" ];
          };
        };

        eww-bar = {
          Unit = {
            Description = "Eww bar";
            After = "eww.service";
          };
          Service = {
            Type = "oneshot";
            ExecStart = pkgs.writeShellScript "eww-bar-open" ''
              # Lack of quotes intentional
              exec ${eww}/bin/eww open-many \
                $(${config.wayland.windowManager.hyprland.package}/bin/hyprctl monitors -j | \
                  ${pkgs.jaq}/bin/jaq -r '.[] | .id' | \
                  ${pkgs.gnused}/bin/sed 's/^/bar/')
            '';
          };
          Install = {
            WantedBy = [ "eww.service" ];
          };
        };
      };
    };
  };
}