module Stoplight
  T: singleton(Types)
  CONFIG_MUTEX: Mutex

  self.@configured:  bool?
  self.@default_config: Domain::Config?
  self.@systems: Concurrent::Map[String, _System]
  self.@default_light_factory: Wiring::LightFactory?

  def self.warn_if_reconfiguring: (bool) { () -> void } -> void
  def self.configured?: -> bool
  def self.__stoplight__reset!: -> void

  def self.system_light: (
      String name,
      ?cool_off_time: optional[duration],
      ?threshold: optional[percentage | Integer],
      ?recovery_threshold: optional[Integer],
      ?window_size: optional[duration?],
      ?tracked_errors: optional[Array[_ExceptionMatcher]],
      ?skipped_errors: optional[Array[_ExceptionMatcher]],
      ?data_store: optional[data_store],
      ?error_notifier: optional[error_notifier],
      ?notifiers: optional[Array[state_transition_notifier]],
      ?traffic_control: optional[traffic_control],
      ?traffic_recovery: optional[traffic_recovery],
    ) -> Domain::Light

  def self.systems: -> Concurrent::Map[String, _System]
  def self.default_config: -> Domain::Config
  def self.ensure_configured: -> void
  def self.__stoplight__system: (
      _ToS name,
      ?cool_off_time: optional[duration],
      ?threshold: optional[percentage | Integer],
      ?recovery_threshold: optional[Integer],
      ?window_size: optional[duration?],
      ?tracked_errors: optional[Array[_ExceptionMatcher]],
      ?skipped_errors: optional[Array[_ExceptionMatcher]],
      ?data_store: optional[data_store],
      ?error_notifier: optional[error_notifier],
      ?notifiers: optional[Array[state_transition_notifier]],
      ?traffic_control: optional[traffic_control],
      ?traffic_recovery: optional[traffic_recovery],
    ) -> _System
  def self.__stoplight__default_configuration: -> Domain::Config
  def self.__stoplight__default_light_factory: -> Wiring::LightFactory
end