Add task_name and state to invalid call sequence FCP_CHECK

PiperOrigin-RevId: 644276987

fcp/client/federated_protocol.h

@@ -424,6 +424,46 @@ class FederatedProtocol {
  // succeed.
  kReportMultipleTaskPartialError,
  };
+
+ std::string ObjectStateToString(ObjectState state) {
+ switch (state) {
+ case ObjectState::kInitialized:
+ return "kInitialized";
+ case ObjectState::kEligibilityEvalCheckinFailed:
+ return "kEligibilityEvalCheckinFailed";
+ case ObjectState::kEligibilityEvalCheckinFailedPermanentError:
+ return "kEligibilityEvalCheckinFailedPermanentError";
+ case ObjectState::kEligibilityEvalCheckinRejected:
+ return "kEligibilityEvalCheckinRejected";
+ case ObjectState::kEligibilityEvalDisabled:
+ return "kEligibilityEvalDisabled";
+ case ObjectState::kEligibilityEvalEnabled:
+ return "kEligibilityEvalEnabled";
+ case ObjectState::kCheckinFailed:
+ return "kCheckinFailed";
+ case ObjectState::kCheckinFailedPermanentError:
+ return "kCheckinFailedPermanentError";
+ case ObjectState::kCheckinRejected:
+ return "kCheckinRejected";
+ case ObjectState::kCheckinAccepted:
+ return "kCheckinAccepted";
+ case ObjectState::kMultipleTaskAssignmentsFailed:
+ return "kMultipleTaskAssignmentsFailed";
+ case ObjectState::kMultipleTaskAssignmentsFailedPermanentError:
+ return "kMultipleTaskAssignmentsFailedPermanentError";
+ case ObjectState::kMultipleTaskAssignmentsNoAvailableTask:
+ return "kMultipleTaskAssignmentsNoAvailableTask";
+ case ObjectState::kMultipleTaskAssignmentsAccepted:
+ return "kMultipleTaskAssignmentsAccepted";
+ case ObjectState::kReportCalled:
+ return "kReportCalled";
+ case ObjectState::kReportFailedPermanentError:
+ return "kReportFailedPermanentError";
+ case ObjectState::kReportMultipleTaskPartialError:
+ return "kReportMultipleTaskPartialError";
+ }
+ return "kUnexpectedValueForObjectState";
+ }
 };
 
 } // namespace client

fcp/client/http/http_federated_protocol.cc

@@ -1123,7 +1123,8 @@ absl::Status HttpFederatedProtocol::ReportCompleted(
  }
  FCP_CHECK(task_info->state == ObjectState::kCheckinAccepted ||
  task_info->state == ObjectState::kMultipleTaskAssignmentsAccepted)
- << "Invalid call sequence";
+ << "Invalid call sequence for task " << task_info->task_name
+ << " with state " << ObjectStateToString(task_info->state);
  task_info->state = ObjectState::kReportCalled;
  auto find_secagg_tensor_lambda = [](const auto& item) {
  return std::holds_alternative<QuantizedTensor>(item.second);