private void ReadStats(WorkflowStats stats, WorkflowDbContext dbc)
        {
            stats.Count = dbc.KeyReleaseWorkflowStates.Count();

            stats.Expired      = dbc.KeyReleaseWorkflowStates.Count(x => x.ValidUntil < _Dtp.Snapshot);
            stats.Unauthorised = dbc.KeyReleaseWorkflowStates.Count(x => x.ValidUntil < _Dtp.Snapshot && x.LabConfirmationId != null && x.AuthorisedByCaregiver == null && x.DateOfSymptomsOnset == null);
            stats.Authorised   = dbc.KeyReleaseWorkflowStates.Count(x => x.ValidUntil < _Dtp.Snapshot && x.LabConfirmationId == null && x.AuthorisedByCaregiver != null && x.DateOfSymptomsOnset != null);

            stats.AuthorisedAndFullyPublished = dbc.KeyReleaseWorkflowStates.Count(x => x.ValidUntil < _Dtp.Snapshot &&
                                                                                   x.AuthorisedByCaregiver != null &&
                                                                                   x.DateOfSymptomsOnset != null &&
                                                                                   x.LabConfirmationId == null &&
                                                                                   x.Teks.Count(y => y.PublishingState == PublishingState.Unpublished) == 0);

            stats.TekCount       = dbc.TemporaryExposureKeys.Count();
            stats.TekPublished   = dbc.TemporaryExposureKeys.Count(x => x.PublishingState == PublishingState.Published);
            stats.TekUnpublished = dbc.TemporaryExposureKeys.Count(x => x.PublishingState == PublishingState.Unpublished);
        }
        private void LogReport(WorkflowStats stats, string message)
        {
            var sb = new StringBuilder(message);

            sb.AppendLine();
            sb.AppendLine($"{nameof(WorkflowStats.Count)}:{stats.Count}");
            sb.AppendLine($"{nameof(WorkflowStats.Expired)}:{stats.Expired}");
            sb.AppendLine("of which:");
            sb.AppendLine($"   Unauthorised:{stats.Unauthorised}");
            sb.AppendLine($"   Authorised:{stats.Authorised}");
            sb.AppendLine("    of which:");
            sb.AppendLine($"      FullyPublished:{stats.AuthorisedAndFullyPublished}");
            sb.AppendLine();
            sb.AppendLine($"{nameof(WorkflowStats.TekCount)}:{stats.TekPublished}");
            sb.AppendLine("of which:");
            sb.AppendLine($"   Published:{stats.TekPublished}");
            sb.AppendLine($"   Unpublished:{stats.TekUnpublished}");

            _Logger.WriteReport(sb.ToString());
        }