class ActionController::LogSubscriber

def halted_callback(event)
  info { "Filter chain halted as #{event.payload[:filter].inspect} rendered or redirected" }
end

def logger
  ActionController::Base.logger
end

def process_action(event)
  info do
    payload = event.payload
    additions = ActionController::Base.log_process_action(payload)
    status = payload[:status]
    if status.nil? && (exception_class_name = payload[:exception]&.first)
      status = ActionDispatch::ExceptionWrapper.status_code_for_exception(exception_class_name)
    end
    additions << "Allocations: #{event.allocations}"
    message = +"Completed #{status} #{Rack::Utils::HTTP_STATUS_CODES[status]} in #{event.duration.round}ms" \
               " (#{additions.join(" | ")})"
    message << "\n\n" if defined?(Rails.env) && Rails.env.development?
    message
  end
end

def redirect_to(event)
  info { "Redirected to #{event.payload[:location]}" }
end

def send_data(event)
  info { "Sent data #{event.payload[:filename]} (#{event.duration.round(1)}ms)" }
end

def send_file(event)
  info { "Sent file #{event.payload[:path]} (#{event.duration.round(1)}ms)" }
end

def start_processing(event)
  return unless logger.info?
  payload = event.payload
  params = {}
  payload[:params].each_pair do |k, v|
    params[k] = v unless INTERNAL_PARAMS.include?(k)
  end
  format  = payload[:format]
  format  = format.to_s.upcase if format.is_a?(Symbol)
  format  = "*/*" if format.nil?
  info "Processing by #{payload[:controller]}##{payload[:action]} as #{format}"
  info "  Parameters: #{params.inspect}" unless params.empty?
end

def unpermitted_parameters(event)
  debug do
    unpermitted_keys = event.payload[:keys]
    display_unpermitted_keys = unpermitted_keys.map { |e| ":#{e}" }.join(", ")
    context = event.payload[:context].map { |k, v| "#{k}: #{v}" }.join(", ")
    color("Unpermitted parameter#{'s' if unpermitted_keys.size > 1}: #{display_unpermitted_keys}. Context: { #{context} }", RED)
  end
end