defmodule NDCNormalize do

  def remove_soap_tags(xml, soap_namespace) when soap_namespace != nil, do: Regex.replace(~r/(<\/?#{soap_namespace}:.*?>)/s, xml, "")
  def remove_soap_tags(xml, soap_namespace) when soap_namespace == nil, do: xml

  def remove_declaration(xml), do: Regex.replace(~r/<\?xml[\S\s]*\?>/, xml, "")

  def remove_soap_header(xml, {header, attrs, list}), do: Regex.replace(~r/(<#{to_string(header)}[\S\s]*?>[\S\s]*?<\/#{to_string(header)}>)/s, xml, "")
  def remove_soap_header(xml, soap_header) when is_binary(soap_header), do: xml #Regex.replace(~r/(<#{soap_header}[\S\s]*?>[\S\s]*?<\/#{soap_header}>)/s, xml, "")
  def remove_soap_header(xml, soap_header) when soap_header == nil, do: xml

  #def remove_namespace(xml, namespace) when namespace != nil, do: Regex.replace(~r/(<#{namespace}:)/s, Regex.replace(~r/(</#{namespace}:)/s, xml, "</"), "<")
  def remove_namespace(xml, namespace) when namespace != nil, do: Regex.replace(~r/(<#{namespace}:)/s, Regex.replace(~r/(<\/#{namespace}:)/s, xml, "</"), "<")
  def remove_namespace(xml, namespace) when namespace == nil, do: xml

  @doc "Removes wrapper taken from config/message/wrappers"
  def remove_message_wrapper(xml, message) when message == nil, do: xml
  def remove_message_wrapper(xml, [ wrapper: { wrapper, attributes}, req: req, wrapper_response: {res_wrapper, res_attributes}, res: res ]) do
	  xml = Regex.replace(~r/(<#{to_string(res_wrapper)}[\S\s]*><#{to_string(res)}>)/s, xml, "")
	  Regex.replace(~r/(<\/#{to_string(res)}><\/#{to_string(res_wrapper)}[\S\s]*>)/s, xml, "")
  end
  def check_ndc_errors(xml) do
    #if Regex.match?(~r/<Errors>[\s]*<Error>[\S\s]*<\/Error>[\s]*<\/Errors>/, xml) do
    if Regex.match?(~r/<Errors>[\s]*((<Error>[\S\s]*<\/Error>)|(<Error [\S\s]*\/>))[\s]*<\/Errors>/, xml) do
      {:error, xml}
    else if Regex.match?(~r/<(soap:)?Fault>[\s]*<faultcode>[\S\s]*<\/faultcode>[\s]*<\/(soap:)?Fault>/, xml) do
      {:error, xml}
    else
      {:ok, xml}
    end
    end
  end

end