# frozen_string_literal: true

require 'lograge'
require 'active_support/core_ext/array'

module Loggable
  module Lograge
    # Custom formatter class that renders logs as ruby objects with just the ecs fields generated by the logger, the
    # message, and a lograge flag so the ECS logger knows to process this further before rendering
    class Formatter < ::Lograge::Formatters::KeyValue
      def call(data)
        (data[:ecs] || {}).merge(message: super(data), lograge: true)
      end

      protected

      def fields_to_display(data)
        data.keys.excluding(%i[ecs])
      end
    end
  end
end