{ hyprLib, mainMod, lib, pkgs, ... }:

let
  inherit (hyprLib)
    bind
    exec
  ;

  # automatically discover shaders in the relative hypr shaders directory
  shaders = lib.mapAttrsToList (name: _: lib.strings.removeSuffix ".glsl" "${name}") 
    (lib.attrsets.filterAttrs
      (name: type: type == "regular") 
      (builtins.readDir ./windowShaders)
    );
  loadShader = name: "hl.plugin.darkwindow.load_shader('${name}', { path = './windowShaders/${name}.glsl'})";
in 
{
  users.users.djai.packages = with pkgs.hyprlandPlugins; [
    hypr-darkwindow
  ];

  # supposed to map to hl.plugin.darkwindow.load_shader("${shader}" { path = "./windowShaders/${shader}.glsl"})
  home-manager.users."djai".wayland.windowManager.hyprland.extraConfig = ''
  if hl.plugin.darkwindow ~= nil then
    ${lib.strings.join "\n  " (map loadShader shaders)}
  end
  '';

  home-manager.users."djai".wayland.windowManager.hyprland.settings = {
    bind = [
      (bind "${mainMod} + SHIFT + B" (exec "~/.config/hypr/scripts/shader_picker_window.sh") "Pick a shader for active window")
    ];

    window_rule = [
      { match.tag = "shader/muted"; "darkwindow:shade" = "grey";}
      { match.tag = "muted"; "darkwindow:shade" = "grey";}
    ] ++ map (name: { match.tag = "shader/${name}"; "darkwindow:shade" = "${name}";}) shaders;
  };



  # TODO: symlink ./windowShaders into ~/.config/hypr/ 
  # TODO: symlink ./shaders into ~/.config/hypr/  <- should happen in desktop/hypr.nix prolly
}