module Ecoportal
  module API
    module Common
      class BaseModel

        attr_reader :initial_doc

        def initialize(doc = {}, parent: self, key: nil)
          @_parent = parent
          @_key    = key
          if !_parent || !_key
            @doc          = doc
            @original_doc = JSON.parse(@doc.to_json)
            @initial_doc  = JSON.parse(@doc.to_json)
          end
        end

        def initial_doc
          raise UnlinkedModel.new  unless linked?
          return @initial_doc if is_root?
          _parent.initial_doc.dig(*[_key].flatten)
        end

      end
    end
  end
end