# frozen_string_literal: true

module Wayfarer
  module Middleware
    module Controller
      extend ActiveSupport::Concern

      included do
        class_attribute :chain,
                        default: Chain.empty,
                        instance_accessor: false,
                        instance_predicate: false

        attr_accessor :task

        include Wayfarer::Callbacks
      end

      class_methods do
        def use(middleware)
          chain.push(middleware.lazy)
          api(middleware)
        end

        def api(middleware)
          include middleware.api
        end
      end

      def call(task)
        self.task = task

        task[:job] ||= self
        task[:controller] = self

        self.class.chain.call(task) do
          yield if block_given?
        end

        task[:return_value]
      end
    end
  end
end