module RubySpeech
  module SSML
    class Element < Niceogiri::XML::Node
      def self.new(element_name, atts = {}, &block)
        super element_name do |new_node|
          atts.each_pair { |k, v| new_node.send :"#{k}=", v }
          block_return = new_node.instance_eval &block if block_given?
          new_node << block_return if block_return.is_a?(String)
        end
      end

      def method_missing(method_name, *args, &block)
        const = SSML.const_get(method_name.to_s.titleize.gsub(' ', ''))
        if const && self.valid_child_type?(const)
          self << const.new(*args, &block)
        else
          super
        end
      end

      def eql?(o, *args)
        super o, :content, *args
      end
    end # Element
  end # SSML
end # RubySpeech