defmodule Meta.OpenNebula.Schema.Records do
  @moduledoc """
  Here we define XSD template into something we can play with (Records).

  Records are not usually used in elixir except for integrating with erlang
  code - which is what we're doing right now: the records are defined in .hrl
  (erlang headers) by erlsom.

  See Meta.OpenNebula.Schema module for details.
  """

  require Record
  alias Meta.OpenNebula.Schema

  @models %{
    "vm" => Schema.generate_model_for("vm"),
    "vm_pool" => Schema.generate_model_for("vm_pool")
  }

  def get_model_for(object), do: Map.get(@models, object)

  extract = fn name, acc -> Record.extract_all(from: Schema.get_hrl_for(name)) ++ acc end
  sources = ["vm", "vm_pool"]
            |> Enum.reduce([], extract)
            |> Enum.sort_by(fn {name, _} -> name end)
            |> Enum.dedup_by(fn {name, _} -> name end)

  #IO.inspect sources |> Enum.dedup_by(fn {, _} -> name end)

  for {name, record} <- sources do
    Record.defrecord name, record
  end
end