class ElasticAPM::Span

def done
  @duration = Util.micros - @transaction.timestamp - relative_start
  if original_backtrace && long_enough_for_stacktrace?
    self.stacktrace =
      @transaction.instrumenter.agent.stacktrace_builder.build(
        original_backtrace, type: :span
      )
  end
  self.original_backtrace = nil # release it
  self
end

def done?
  !!duration
end

def initialize(
  transaction,
  id,
  name,
  type = nil,
  parent: nil,
  context: nil
)
  @transaction = transaction
  @id = id
  @name = name
  @type = type || DEFAULT_TYPE
  @parent = parent
  @context = context
  @stacktrace = nil
  @original_backtrace = nil
end

def inspect
  "<ElasticAPM::Span id:#{id}" \
    " name:#{name.inspect}" \
    " type:#{type.inspect}" \
    '>'
end

def long_enough_for_stacktrace?
  min_duration = @transaction.instrumenter.config.span_frames_min_duration
  case min_duration
  when -1 then true
  when 0 then false
  else duration / 1000 >= min_duration
  end
end

def running?
  relative_start && !done?
end

def start
  @relative_start = Util.micros - @transaction.timestamp
  self
end