recordError method

Implementation

void recordError() {
  // avoid leak by skipping in unhealthy state
  if (_healthy) {
    final now = DateTime.now();
    final end = _errorTimestamps.lastIndexWhere(
      (t) => t.isBefore(now.subtract(Duration(seconds: 5))),
    );
    if (end > -1) {
      _errorTimestamps.removeRange(0, end);
    }
    _errorTimestamps.add(now);
    if (_errorTimestamps.length > 25) {
      setUnhealthy();
    }
  } else {
    _errorTimestamps.clear();
  }
}