{ lib, flakeRoot, ... }:

let
  programName = "eww";
  programAssets = "${flakeRoot}/assets/system/conf/${programName}";
  programFiles = builtins.readDir programAssets;
  files = lib.genAttrs (builtins.attrNames programFiles) (name: {
    src = "${programAssets}/${name}";
  });
in
{
  # Top-level toggle for this program
  options.myApps.${programName}.enable =
    lib.mkEnableOption "Enable Eww widgets";

  # Wrap everything in config if enabled
  config = { config, ... }: let
    enableProgram = config.myApps.${programName}.enable or false;

    # Determine username safely inside config.mkIf
    username = if enableProgram then (config.defaultUser or "henrov") else null;

    # Full config directory path in user's home
    ewwConfigDir = if enableProgram then "/home/${username}/.config/${programName}" else null;
  in lib.mkIf enableProgram {
    myApps = {
      ${programName} = {
        enable = true;
        assetsDir = programAssets;
        files = files;

        # Assign user after config exists
        user = username;
      };
    };

    # Home Manager user configuration
    home-manager.users.${username} = {
      home.stateVersion = "26.05";
      home.username = username;
      home.homeDirectory = "/home/${username}";

      # Deploy Eww configs
      home.file."${ewwConfigDir}" = {
        source = programAssets;
        recursive = true;
      };

      # Session variables
      home.sessionVariables = {
        EWW_BIN = "${config.pkgs.eww}/bin/eww";
      };

      # Wayland/Hyprland startup hooks
      wayland.windowManager.hyprland.settings = lib.mkForce {
        exec-once = [ "eww daemon" ];
        exec = [ "eww open-many ${ewwConfigDir}/widgets" ];
      };
    };
  };
}