isValidSeoEditorialWorkflowState function

Implementation

bool isValidSeoEditorialWorkflowState(SeoEditorialWorkflowState state) {
  final history = state.history;
  if (history.isEmpty ||
      history.length > seoEditorialWorkflowMaxHistoryEntries ||
      history.first != SeoEditorialWorkflowStage.draft ||
      history.last != state.stage) {
    return false;
  }
  for (var index = 1; index < history.length; index++) {
    if (!_isSeoEditorialWorkflowEdge(history[index - 1], history[index])) {
      return false;
    }
  }
  return true;
}