# https://github.com/karafka/null-logger/blob/master/lib/null_logger.rb
# under MIT license as of 5/9/2016

# Null logger class
# Is used when logger is not defined
class NullLogger
  # Possible log levels from ruby Logger::Severity class
  LOG_LEVELS = %w( unknown fatal error warn info debug ).freeze

  # Returns nil for any method call from LOG_LEVELS array
  # Instead raise NoMethodError
  # @example:
  #   NullLogger.new.fatal -> return nil
  #   NullLogger.new.wrong_method -> raise NoMethodError
  def method_missing(method_name, *args, &block)
    return nil if LOG_LEVELS.include?(method_name.to_s)
    super(method_name, *args, &block)
  end
end