defmodule FeedParser.XML do
  @moduledoc """
  A set of helpers for working with XML. To use this module, you must `require` it.
  """

  import Record

  defrecord :xmlElement, extract(:xmlElement, from_lib: "xmerl/include/xmerl.hrl")
  defrecord :xmlAttribute, extract(:xmlAttribute, from_lib: "xmerl/include/xmerl.hrl")
  defrecord :xmlText, extract(:xmlText, from_lib: "xmerl/include/xmerl.hrl")

  @spec parse(data :: String.t()) :: {:ok, tuple()} | {:error, String.t()}
  def parse(data) do
    try do
      {doc, _} =
        data
        |> :binary.bin_to_list()
        |> :xmerl_scan.string()

      {:ok, doc}
    catch
      :exit, reason -> {:error, "parsing XML failed: #{inspect(reason)}"}
    end
  end
end