Yabeda stdout adapter

stdout.rb

# frozen_string_literal: true

require "yabeda/base_adapter"

module Yabeda
  module STDOUT
    class Adapter < BaseAdapter
      def register_counter!(_metric)
      end

      def perform_counter_increment!(counter, tags, increment)
        $stdout.puts "[METRICS] #{counter.name}#{build_tags(tags)} #{increment}"
      end

      def register_gauge!(_metric)
      end

      def perform_gauge_set!(metric, tags, value)
        $stdout.puts "[METRICS] #{metric.name}#{build_tags(tags)} #{value}"
      end

      def register_histogram!(_metric)
      end

      def perform_histogram_measure!(metric, tags, value)
        $stdout.puts "[METRICS] #{metric.name}#{build_tags(tags)} #{value}"
      end

      private

      def build_tags(tags)
        return if tags.nil? || tags.empty?

        tags.map { |k, v| "#{k}=#{v}" }.join(",").then { "{#{_1}}" }
      end

      Yabeda.register_adapter(:stdout, new)
    end
  end
end