class Blueprinter::AssociationExtractor

def association_blueprint(blueprint, value)
  blueprint.is_a?(Proc) ? blueprint.call(value) : blueprint
end

def default_value(association_options)
  return association_options.fetch(:default) if association_options.key?(:default)
  Blueprinter.configuration.association_default
end

def extract(association_name, object, local_options, options = {})
  options_without_default = options.reject { |k, _| %i[default default_if].include?(k) }
  # Merge in assocation options hash
  local_options = local_options.merge(options[:options]) if options[:options].is_a?(Hash)
  value = @extractor.extract(association_name, object, local_options, options_without_default)
  return default_value(options) if use_default_value?(value, options[:default_if])
  view = options[:view] || :default
  blueprint = association_blueprint(options[:blueprint], value)
  blueprint.prepare(value, view_name: view, local_options: local_options)
end

def initialize
  @extractor = Blueprinter.configuration.extractor_default.new
end