module ActiveResourceChangeable

# File lib/active_resource_changeable/active_resource_changeable.rb, line 3
def self.included(base)
  class << base
    def find(params)
      TraceChanges.instance_variable_set(:@original_objekt, self.new(super(params).attributes))
      super(params)
    end
  end
end

# File lib/active_resource_changeable/active_resource_changeable.rb, line 38
def changes
  prechanges
  @@hash.deep_dup()
end

# File lib/active_resource_changeable/active_resource_changeable.rb, line 14
def prechanges(_self=self, original_objekt=TraceChanges.instance_variable_get(:@original_objekt), keys = [])
  hash = _self.attributes
  hash.each do |key, val|
    if val.is_a? ActiveResource::Base
      prechanges(val, original_objekt.send(key), keys.push(key))
      keys.pop
    elsif original_objekt.send(key) != val
      temp_hash = HashWithIndifferentAccess.new
      if keys.present?
        keys.each_with_index do |kkey, i|
          if temp_hash[keys[i]].present?
            temp_hash[keys[i]].merge!({"#{keys[i+1]}": {"#{key}": [original_objekt.send(key), val]}})
          else
            temp_hash[keys[i]] = {"#{keys[i+1]}": {"#{key}": [original_objekt.send(key), val]}}
          end
        end
        @@hash = @@hash.deep_merge(temp_hash)
      else
        @@hash.merge!("#{key}": [original_objekt.send(key), val])
      end
    end
  end
end