module Kumogata
  def self.logger
    Kumogata::Logger.instance
  end

  class Logger < ::Logger
    include Singleton

    def initialize
      super($stdout)

      self.formatter = proc do |severity, datetime, progname, msg|
        "#{msg}\n"
      end

      self.level = Logger::INFO
    end

    def set_debug(value)
      self.level = value ? Logger::DEBUG : Logger::INFO
    end
  end
end