class Reptar

# File lib/reptar.rb, line 31
def self.attribute(name, options = {})
  @nodes[name] = options
end

# File lib/reptar.rb, line 35
def self.attributes(*attributes)
  attributes.each{ |e| @nodes[e] = nil }
end

# File lib/reptar.rb, line 27
def self.inherited(klass)
  klass.instance_variable_set("@nodes", {})
end

# File lib/reptar.rb, line 39
def initialize(object)
  @object = object
end

# File lib/reptar.rb, line 57
def build_hash
  self.class.nodes.each_with_object({}) do |(name, options), hash|
    rep = options[:with] if options
    res = @object.respond_to?(name) ? @object.send(name) : self.send(name)
    res = Object.const_get(rep).new(res).representable if rep
    name = options[:key] if options && options[:key]
    hash[name] = res
  end
end

# File lib/reptar.rb, line 43
def method_missing(method_name)
  @object.respond_to?(method_name) ? @object.send(method_name) : super
end

# File lib/reptar.rb, line 52
def representable
  return nil unless @object
  @object.respond_to?(:to_a) ? @object.map{|e| self.class.new(e).build_hash } : build_hash
end

# File lib/reptar.rb, line 47
def to_json(options = {})
  root = options[:root]
  (root ? { root => representable } : representable).to_json
end