module Import
  module BaseFactory

    # rubocop:disable Style/ModuleFunction
    extend self

    def import_action(records, *args)
      pre_import_hook(records)
      import_loop(records) do |record|
        next if skip?(record)
        backend_instance = create_instance(record, *args)
        post_import_hook(record, backend_instance)
      end
    end

    def import(_records)
      raise 'Missing import method implementation for this factory'
    end

    def pre_import_hook(_records)
    end

    def post_import_hook(_record, _backend_instance)
    end

    def backend_class(_record)
      "Import::#{module_name}".constantize
    end

    def skip?(_record)
      false
    end

    private

    def create_instance(record, *args)
      backend_class(record).new(record, *args)
    end

    def import_loop(records, &import_block)
      records.each(&import_block)
    end

    def module_name
      name.to_s.sub(/Import::/, '').sub(/Factory/, '')
    end
  end
end