public static DateTimeIndex GetDateTimeIndex(Timing Timing)
{
var DateTimeIndex = new DateTimeIndex();
if (Timing.Event != null)
{
DateTimeIndex.Low = ResolveTargetEventDateTime(Timing, true);
if (DateTimeIndex.Low != DateTimeOffset.MaxValue.ToUniversalTime())
{
decimal TargetDuration = ResolveTargetDurationValue(Timing);
Timing.UnitsOfTime?TargetUnitsOfTime = null;
if (TargetDuration > decimal.Zero)
{
if (Timing.Repeat.DurationUnit.HasValue)
{
TargetUnitsOfTime = Timing.Repeat.DurationUnit.Value;
}
}
if (TargetDuration > decimal.Zero && TargetUnitsOfTime.HasValue)
{
DateTimeIndex.High = AddDurationTimeToEvent(ResolveTargetEventDateTime(Timing, false), TargetDuration, TargetUnitsOfTime);
}
else
{
DateTimeIndex.High = null;
}
}
else
{
DateTimeIndex.Low = null;
}
}
return(DateTimeIndex);
}
public static DateTimeIndex GetDateTimeIndex(Period value)
{
DateTimeIndex DateTimeIndexStart = null;
DateTimeIndex DateTimeIndexEnd = null;
var DateTimeIndex = new DateTimeIndex();
PartialDateTime?PartialDateTimeLow = null;
if (value.StartElement != null)
{
PartialDateTimeLow = value.StartElement.ToPartialDateTime();
DateTimeIndexStart = ParsePartialDateTime(PartialDateTimeLow);
}
PartialDateTime?PartialDateTimeHigh = null;
if (value.EndElement != null)
{
PartialDateTimeHigh = value.EndElement.ToPartialDateTime();
DateTimeIndexEnd = ParsePartialDateTime(PartialDateTimeHigh);
}
if (DateTimeIndexStart != null)
{
DateTimeIndex.Low = DateTimeIndexStart.Low;
}
if (DateTimeIndexEnd != null)
{
DateTimeIndex.High = DateTimeIndexEnd.High;
}
return(DateTimeIndex);
}
public static DateTimeIndex GetDateTimeIndex(Period value)
{
var DateTimeIndex = new DateTimeIndex();
PartialDateTime?PartialDateTimeLow = null;
if (value.StartElement != null)
{
PartialDateTimeLow = value.StartElement.ToPartialDateTime();
}
PartialDateTime?PartialDateTimeHigh = null;
if (value.EndElement != null)
{
PartialDateTimeHigh = value.EndElement.ToPartialDateTime();
}
if (PartialDateTimeLow.HasValue)
{
DateTimeIndex.Low = PartialDateTimeLow.Value.ToUniversalTime().ToLocalTime();
}
if (PartialDateTimeHigh.HasValue)
{
DateTimeIndex.High = PartialDateTimeHigh.Value.ToUniversalTime().ToLocalTime();
}
return(DateTimeIndex);
}
//Check all DateTime values in the list and find the earliest value.
private static DateTimeOffset ResolveTargetEventDateTime(Timing Timing, bool TargetLowest)
{
DateTimeOffset TargetEventDateTime;
if (TargetLowest)
{
TargetEventDateTime = DateTimeOffset.MaxValue.ToUniversalTime();
}
else
{
TargetEventDateTime = DateTimeOffset.MinValue.ToUniversalTime();
}
foreach (var EventDateTime in Timing.EventElement)
{
if (!string.IsNullOrWhiteSpace(EventDateTime.Value))
{
if (FhirDateTime.IsValidValue(EventDateTime.Value))
{
PartialDateTime?PartialDateTimeType = EventDateTime.ToPartialDateTime();
if (PartialDateTimeType.HasValue)
{
DateTimeIndex DateTimeIndexOffSetValue = ParsePartialDateTime(PartialDateTimeType.Value);
DateTimeOffset DateTimeOffSetValue = PartialDateTimeType.Value.ToUniversalTime().ToLocalTime();
if (TargetLowest)
{
if (TargetEventDateTime > DateTimeIndexOffSetValue.Low.Value)
{
TargetEventDateTime = DateTimeIndexOffSetValue.Low.Value;
}
}
else
{
if (TargetEventDateTime < DateTimeIndexOffSetValue.High.Value)
{
TargetEventDateTime = DateTimeIndexOffSetValue.High.Value;
}
}
}
}
}
}
return(TargetEventDateTime);
}
