private static Timing GetTiming(GeneralMeasurement frequency)
{
if (frequency.Structured.Any())
{
StructuredMeasurement frequencyMeasurement = frequency.Structured.First();
var repeatComponent = new Timing.RepeatComponent();
repeatComponent.Period = new decimal(frequencyMeasurement.Value);
repeatComponent.PeriodUnit = GetPeriodUnitFromFromRecurrenceIntervals(frequencyMeasurement.Units);
return(new Timing()
{
Repeat = repeatComponent
});
}
return(null);
}
public static SimpleQuantity GetSimpleQuantity(GeneralMeasurement measurement)
{
if (measurement?.Structured.Any() == true)
{
StructuredMeasurement structuredMeasurement = measurement.Structured.First();
var simpleQuantity = new SimpleQuantity()
{
Value = new decimal(structuredMeasurement.Value),
Unit = structuredMeasurement.Units.Text
};
if (structuredMeasurement.Units.Any())
{
CodedValue measurementUnit = structuredMeasurement.Units.First();
simpleQuantity.Code = measurementUnit.Value;
simpleQuantity.System = HealthVaultVocabularies.GenerateSystemUrl(measurementUnit.VocabularyName, measurementUnit.Family);
}
return(simpleQuantity);
}
return(null);
}
public static ThingBase ToHealthVault(this MedicationRequest medicationRequest)
{
var fhirMedication = MedicationRequestHelper.ExtractEmbeddedMedication(medicationRequest);
if (fhirMedication == null)
{
return(null);
}
var hvMedication = fhirMedication.ToHealthVault() as HVMedication;
var practitioner = ExtractEmbeddedPractitioner(medicationRequest);
if (practitioner == null)
{
throw new NotSupportedException($"{nameof(MedicationRequest)} needs to have an embedded Requester Agent");
}
var prescription = new Prescription(practitioner.ToHealthVault());
if (medicationRequest.AuthoredOnElement != null)
{
var dt = medicationRequest.AuthoredOnElement.ToDateTimeOffset();
prescription.DatePrescribed = new ApproximateDateTime(
new ApproximateDate(dt.Year, dt.Month, dt.Day),
new ApproximateTime(dt.Hour, dt.Minute, dt.Second, dt.Millisecond));
}
MedicationRequest.DispenseRequestComponent dispenseRequest = medicationRequest.DispenseRequest;
if (dispenseRequest != null)
{
var numerator = dispenseRequest.Quantity;
if (numerator != null)
{
var structuredMeasurement = new StructuredMeasurement
{
Value = (double)numerator.Value,
Units = CodeToHealthVaultHelper.CreateCodableValueFromQuantityValues(numerator.System,
numerator.Code, numerator.Unit)
};
prescription.AmountPrescribed = new GeneralMeasurement();
prescription.AmountPrescribed.Structured.Add(structuredMeasurement);
}
prescription.Refills = dispenseRequest.NumberOfRepeatsAllowed;
prescription.DaysSupply = GetDaysFromDuration(dispenseRequest.ExpectedSupplyDuration);
FhirDateTime end = dispenseRequest.ValidityPeriod?.EndElement;
if (end != null)
{
var endDate = end.ToDateTimeOffset();
prescription.PrescriptionExpiration = new HealthServiceDate(endDate.Year
, endDate.Month, endDate.Day);
}
}
if (medicationRequest.DosageInstruction.Any())
{
var dosageInstruction = medicationRequest.DosageInstruction
.FirstOrDefault(dosage => dosage.AdditionalInstruction.Any());
if (dosageInstruction != null)
{
var instruction = dosageInstruction.AdditionalInstruction.First();
prescription.Instructions = instruction.ToCodableValue();
}
}
if (medicationRequest.Substitution != null)
{
prescription.Substitution = GetSubstitutionCode(medicationRequest, prescription);
}
hvMedication.Prescription = prescription;
return(hvMedication);
}
