require "celsius/version"
require "deep_merger"

module Celsius
  require "celsius/adapter"

  def self.deep_clone(object)
    Marshal.load(Marshal.dump(object))
  end

  def self.deep_merge!(destination, source, options = {})
    DeepMerger.deep_merge!(source, destination, options)
  end

  def self.deep_stringify_keys(hash)
    Celsius.deep_stringify_keys!(Celsius.deep_clone(hash))
  end

  #
  private
  #

  # http://stackoverflow.com/questions/8379596/how-do-i-convert-a-ruby-hash-so-that-all-of-its-keys-are-symbols
  def self.deep_stringify_keys!(hash_or_element)
    case hash_or_element
    when Hash
      Hash[
        hash_or_element.map do |key, value|
          [ key.respond_to?(:to_s) ? key.to_s : key, deep_stringify_keys(value) ]
        end
      ]
    when Enumerable
      hash_or_element.map { |value| deep_stringify_keys(value) }
    else
      hash_or_element
    end
  end
end