class Airbrake::Rails::Railties::ActionControllerTie

def call
  ActiveSupport.on_load(:action_controller, run_once: true, yield: self) do
    # Patches ActionController with methods that allow us to retrieve
    # interesting request data. Appends that information to notices.
    ::ActionController::Base.include(Airbrake::Rails::ActionController)
    tie_routes_apm
    tie_http_integrations
  end
end

def initialize
  @route_subscriber = Airbrake::Rails::ActionControllerRouteSubscriber.new
  @notify_subscriber = Airbrake::Rails::ActionControllerNotifySubscriber.new
  @performance_breakdown_subscriber =
    Airbrake::Rails::ActionControllerPerformanceBreakdownSubscriber.new
end

def tie_curl
  require 'airbrake/rails/curb' if defined?(Curl) && defined?(Curl::CURB_VERSION)
end

def tie_excon
  return unless defined?(Excon)
  require 'airbrake/rails/excon_subscriber'
  ActiveSupport::Notifications.subscribe(/excon/, Airbrake::Rails::Excon.new)
  ::Excon.defaults[:instrumentor] = ActiveSupport::Notifications
end

def tie_http
  require 'airbrake/rails/http' if defined?(HTTP) && defined?(HTTP::Client)
end

def tie_http_client
  require 'airbrake/rails/http_client' if defined?(HTTPClient)
end

def tie_http_integrations
  tie_net_http
  tie_curl
  tie_http
  tie_http_client
  tie_typhoeus
  tie_excon
end

def tie_net_http
  require 'airbrake/rails/net_http' if defined?(Net) && defined?(Net::HTTP)
end

def tie_routes_apm
  [
    # Cache route information for the duration of the request.
    ['start_processing.action_controller', @route_subscriber],
    # Send route stats.
    ['process_action.action_controller', @notify_subscriber],
    # Send performance breakdown: where a request spends its time.
    ['process_action.action_controller', @performance_breakdown_subscriber],
  ].each do |(event, callback)|
    ActiveSupport::Notifications.subscribe(event, callback)
  end
end

def tie_typhoeus
  require 'airbrake/rails/typhoeus' if defined?(Typhoeus)
end