private void WriteConceptMember(IPresenterWriter presenterWriter, ConceptMember conceptMember, Axis verticalAxis, IList <Member> horizontalAxisMembers, FactSet facts)
{
var hypercubeAxis = conceptMember.HypercubeAxis;
if (hypercubeAxis != null)
{
if (horizontalAxisMembers.Count != 1)
{
throw new InvalidOperationException($"Hypercubes require a single period, but the hypercube '{conceptMember.Label}' has {horizontalAxisMembers.Count} periods.");
}
// It is crucial to include related aspects to keep beginning/end of period
// facts in the fact set.
var periodSlicedFactSet = facts.Slice(horizontalAxisMembers.Single(), includeRelatedAspects: true);
var reducedFactSet = periodSlicedFactSet.Reduce(hypercubeAxis);
if (!reducedFactSet.FactModels.Any())
{
// No fact in this hypercube axis: nothing to show.
// This should not happen since the concept axis got reduced already.
return;
}
var verticalChildAxis = verticalAxis.CreateChildAxis(conceptMember);
// Clear the hypercube axis to signal consumption and avoid infinite loop.
conceptMember.HypercubeAxis = null;
WriteTable(presenterWriter, verticalChildAxis, hypercubeAxis, reducedFactSet);
return;
}
var verticallySlicedFactSet = facts.Slice(conceptMember, false);
var cellFacts = new Dictionary <Member, FactModel>();
foreach (var horizontalAxisMember in horizontalAxisMembers)
{
// It is crucial to include related aspects to keep beginning/end of period
// facts in the fact set.
var horizontallySlicedFactSet = verticallySlicedFactSet.Slice(horizontalAxisMember, true);
var cellFact = horizontallySlicedFactSet.GetCellFact();
cellFacts[horizontalAxisMember] = cellFact;
}
presenterWriter.WriteConcept(conceptMember, cellFacts);
foreach (var childMember in conceptMember.Children.Cast <ConceptMember>())
{
WriteConceptMember(presenterWriter, childMember, verticalAxis, horizontalAxisMembers, facts);
}
}
/// <summary>
/// Builds up the specified presentation networks by filling in the facts from the XBRL instance.
/// The format-specific rendering is done by the writer which assembles the final result.
/// </summary>
public void Present(IPresenterWriter presenterWriter, ScopeSettings settings)
{
_settings = settings;
var factSet = new FactSet(Instance.Facts);
factSet.EnsureNoCollisions();
foreach (var factModel in factSet.FactModels)
{
factModel.EnsureDistinctDimensions();
factModel.EnsureConsistentPeriodTypes(Instance.Dts);
}
var standardAxes = BuildStandardAxes();
factSet.EnsureStandardAxesContainFactAspects(standardAxes);
presenterWriter.WriteBeginExport(Instance);
// 1. Slice by single entity.
var entityAxis = FindAxis(standardAxes, Dimension.EntityDimension.Name);
var reducedEntityAxis = entityAxis.Reduce(factSet);
if (!reducedEntityAxis.Roots.Any())
{
throw new InstanceExportException("The reduced entity axis is empty. What the ?!");
}
if (reducedEntityAxis.Roots.Count > 1)
{
throw new InstanceExportException("The instance contains more than one entity. This is not supported.");
}
var entityMember = entityAxis.Roots[0];
var entityAspect = (EntityAspect)entityMember.Aspect;
factSet = factSet.Slice(entityMember, false);
// 2. Slice by single currency unit.
var unitAxis = FindAxis(standardAxes, Dimension.UnitDimension.Name);
var reducedUnitAxis = unitAxis.Reduce(factSet);
if (!reducedUnitAxis.Roots.Any())
{
throw new InstanceExportException("The reduced unit axis is empty. What the ?!");
}
var hasNonCurrencyAspects = reducedUnitAxis.Roots.Select(r => (UnitAspect)r.Aspect).Any(ua => !(ua.Unit is CurrencyUnit));
if (hasNonCurrencyAspects)
{
throw new InstanceExportException("The instance contains non-currency units. This is not supported yet.");
}
var currencyMembers = reducedUnitAxis.Roots.Where(m => ((UnitAspect)m.Aspect).Unit is CurrencyUnit).ToList();
if (currencyMembers.Count > 1)
{
throw new InstanceExportException("The instance contains more than one currency unit. This is not supported.");
}
var currencyMember = currencyMembers[0];
var currencyAspect = (UnitAspect)currencyMember.Aspect;
factSet = factSet.Slice(currencyMember, true); // textual facts will remain because the 'text unit' is related to all currency units.
// 3. Determine first duration period.
var periodAxis = FindAxis(standardAxes, Dimension.PeriodDimension.Name);
var reducedPeriodAxis = periodAxis.Reduce(factSet);
if (!reducedPeriodAxis.Roots.Any())
{
throw new InstanceExportException("The reduced period axis is empty. What the ?!");
}
//var firstDurationAspect = reducedPeriodAxis.Roots.Select(r => (PeriodAspect) r.Aspect).FirstOrDefault(ua => ua.Period is DurationPeriod);
//if (firstDurationAspect == null)
//{
// throw new XbrlExportException("The instance does not contain any duration period. This is not supported.");
//}
// Instance looks okay. Ready to write it out.
presenterWriter.WriteIntro(entityAspect.Entity, currencyAspect.Unit as CurrencyUnit);
WriteNetworks(standardAxes, factSet, settings.PresentationNetworks, presenterWriter);
presenterWriter.WriteEndExport();
}