module AutoError

# File lib/auto_error.rb, line 23
def self.setup!( app_config )
  AutoError::Config.send(:set_defaults)
  app_config.action_dispatch.rescue_responses["AutoError::Errors::Denied"] = :forbidden
  app_config.action_dispatch.rescue_responses["AutoError::Errors::NotFound"] = :not_found

  original_exceptions_app = app_config.exceptions_app || ActionDispatch::PublicExceptions.new(Rails.public_path)
  app_config.exceptions_app = ->(env) do
    puts "Handling exception for #{env['action_controller.instance'].class}"
    controller_class = env['action_controller.instance'].class
    if controller_class.nil? || AutoError.constants.any? { |c| AutoError.const_get(c) == controller_class }
      # do not log/handle exception at all if the error is actually
      # IN auto_error :)
      original_exceptions_app.call(env)
    else
      env['auto_error.original_controller.instance'] = env['action_controller.instance']
      AutoError::ErrorsController.action(:show).call(env)
    end
  end
end