Module: DebugLogging::InstanceNotifierModulizer

Defined in:
lib/debug_logging/instance_notifier_modulizer.rb

Class Method Summary collapse

Class Method Details

.to_mod(methods_to_notify: nil) ⇒ Object



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# File 'lib/debug_logging/instance_notifier_modulizer.rb', line 5

def self.to_mod(methods_to_notify: nil)
  Module.new do
    config_proxy = nil

    Array(methods_to_notify).each do |method_to_notify|
      # method name must be a symbol
      payload = (method_to_notify.is_a?(Array) && method_to_notify.last.is_a?(Hash) && method_to_notify.pop.dup) || {}
      config_opts = {}
      unless payload.empty?
        DebugLogging::Configuration::CONFIG_KEYS.each { |k| config_opts[k] = payload.delete(k) if payload.key?(k) }
      end
      method_to_notify = if method_to_notify.is_a?(Array)
                           method_to_notify.first&.to_sym
                         else
                           method_to_notify.to_sym
                         end
      define_method(method_to_notify) do |*args, &block|
        config_proxy = if (proxy = instance_variable_get(DebugLogging::Configuration.config_pointer('inm',
                                                                                                    method_to_notify)))
                         proxy
                       else
                         proxy = if config_opts.empty?
                                   self.class.debug_config
                                 else
                                   Configuration.new(**self.class.debug_config.to_hash.merge(config_opts))
                                 end
                         proxy.register(method_to_notify)
                         instance_variable_set(
                           DebugLogging::Configuration.config_pointer('inm', method_to_notify), proxy
                         )
                         proxy
                       end
        paydirt = {}
        if payload.key?(:instance_variables)
          paydirt.merge!(payload.reject { |k| k == :instance_variables })
          payload[:instance_variables].each do |k|
            paydirt[k] = instance_variable_get("@#{k}") if instance_variable_defined?("@#{k}")
          end
        else
          paydirt.merge!(payload)
        end
        ActiveSupport::Notifications.instrument(
          DebugLogging::ArgumentPrinter.debug_event_name_to_s(method_to_notify: method_to_notify),
          debug_args: args,
          config_proxy: config_proxy,
          **paydirt
        ) do
          super(*args, &block)
        end
      end
      ActiveSupport::Notifications.subscribe(
        DebugLogging::ArgumentPrinter.debug_event_name_to_s(method_to_notify: method_to_notify)
      ) do |*args|
        config_proxy&.log do
          DebugLogging::LogSubscriber.log_event(ActiveSupport::Notifications::Event.new(*args))
        end
      end
    end
  end
end