module FactoryBot
  # @api private
  module Internal
    class << self
      delegate :after,
               :before,
               :callback_names,
               :callbacks,
               :constructor,
               :factories,
               :initialize_with,
               :inline_sequences,
               :sequences,
               :skip_create,
               :strategies,
               :to_create,
               :traits,
               to: :configuration

      def configuration
        @configuration ||= Configuration.new
      end

      def reset_configuration
        @configuration = nil
      end

      def register_inline_sequence(sequence)
        inline_sequences.push(sequence)
      end

      def rewind_inline_sequences
        inline_sequences.each(&:rewind)
      end

      def register_trait(trait)
        trait.names.each do |name|
          traits.register(name, trait)
        end
        trait
      end

      def trait_by_name(name)
        traits.find(name)
      end

      def register_sequence(sequence)
        sequence.names.each do |name|
          sequences.register(name, sequence)
        end
        sequence
      end

      def sequence_by_name(name)
        sequences.find(name)
      end

      def rewind_sequences
        sequences.each(&:rewind)
        rewind_inline_sequences
      end

      def register_factory(factory)
        factory.names.each do |name|
          factories.register(name, factory)
        end
        factory
      end

      def factory_by_name(name)
        factories.find(name)
      end

      def register_strategy(strategy_name, strategy_class)
        strategies.register(strategy_name, strategy_class)
        StrategySyntaxMethodRegistrar.new(strategy_name).define_strategy_methods
      end

      def strategy_by_name(name)
        strategies.find(name)
      end

      def register_default_strategies
        register_strategy(:build, FactoryBot::Strategy::Build)
        register_strategy(:create, FactoryBot::Strategy::Create)
        register_strategy(:attributes_for, FactoryBot::Strategy::AttributesFor)
        register_strategy(:build_stubbed, FactoryBot::Strategy::Stub)
        register_strategy(:null, FactoryBot::Strategy::Null)
      end

      def register_default_callbacks
        register_callback(:after_create)
        register_callback(:after_build)
        register_callback(:after_stub)
        register_callback(:before_create)
      end

      def register_callback(name)
        name = name.to_sym
        callback_names << name
      end
    end
  end
end