berrypod/lib/berrypod_web/admin_layout_hook.ex

defmodule BerrypodWeb.AdminLayoutHook do
  @moduledoc """
  LiveView on_mount hook that assigns the current path for admin sidebar navigation.
  """
  import Phoenix.Component

  def on_mount(:assign_current_path, _params, _session, socket) do
    socket =
      socket
      |> assign(:current_path, "")
      |> Phoenix.LiveView.attach_hook(:set_current_path, :handle_params, fn _params,
                                                                            uri,
                                                                            socket ->
        {:cont, assign(socket, :current_path, URI.parse(uri).path)}
      end)

    {:cont, socket}
  end
end