module Normalizr

# File lib/normalizr/normalizr.rb, line 34
def self.denormalize! obj, schema, id=nil
  schema.keys.map do |key|
    if id.nil?
      if obj[key].is_a? Hash
        value = schema[key].unvisit(obj, obj[key].keys)
      else
        value = (obj[key] || [])
      end
    else
      value = schema[key].unvisit(obj, Array(id))
    end
    Hash[key, value]
  end.reduce({}, &:merge)
end

# File lib/normalizr/normalizr.rb, line 5
def self.normalize! obj, schema, opts={}
  bag = Normalizr::Bag.new(opts)

  if schema.is_a? Hash
    schema.keys.each do |key|
      schema[key].visit(obj[key], bag)
    end
  else
    schema.visit(obj, bag)
  end

  hash = bag.to_hash

  if schema.is_a? Hash
    schema.keys.each do |key|
      unless hash.has_key? key
        if obj[key].nil? || obj[key].is_a?(Array)
          hash[key] = {}
        else
          hash[key] = obj[key]
        end
      end
    end
  end

  hash
end