DatumUserSwitchResult.aggregate constructor

DatumUserSwitchResult.aggregate(List<DatumUserSwitchResult> results, { required String? previousUserId, required String newUserId, })

Aggregates multiple user switch results into a single summary.

Implementation

factory DatumUserSwitchResult.aggregate(
  List<DatumUserSwitchResult> results, {
  required String? previousUserId,
  required String newUserId,
}) {
  if (results.isEmpty) {
    return DatumUserSwitchResult.success(
      previousUserId: previousUserId,
      newUserId: newUserId,
    );
  }

  final overallSuccess = results.every((r) => r.success);
  final totalUnsyncedHandled = results.map((r) => r.unsyncedOperationsHandled).fold(0, (a, b) => a + b);
  final combinedErrors = results.where((r) => !r.success).map((r) => r.errorMessage).join('; ');

  return DatumUserSwitchResult(
    success: overallSuccess,
    previousUserId: previousUserId,
    newUserId: newUserId,
    unsyncedOperationsHandled: totalUnsyncedHandled,
    errorMessage: combinedErrors.isNotEmpty ? combinedErrors : null,
  );
}