// Private methods
private static FeatureSelectionStates GetNextSelectionStateOnToggle(FeatureSelectionStates currentSelectionState)
{
FeatureSelectionStates nextSelectionState = FeatureSelectionStates.Unselected;
switch (currentSelectionState)
{
case FeatureSelectionStates.Unselected:
nextSelectionState = FeatureSelectionStates.Selected;
break;
case FeatureSelectionStates.Selected:
nextSelectionState = FeatureSelectionStates.Deselected;
break;
case FeatureSelectionStates.Deselected:
nextSelectionState = FeatureSelectionStates.Unselected;
break;
}
return(nextSelectionState);
}
// Public methods
public List <FeatureSelection> ToggleFeatureAsUser(string featureIdentifier)
{
// Variables
FeatureSelection toggledFeatureSelection = this.configurationInstance.FeatureSelections.Single(f => f.FeatureIdentifier == featureIdentifier);
FeatureSelectionStates newSelectionState = GetNextSelectionStateOnToggle(toggledFeatureSelection.SelectionState);
// Set the new selectionState, adding it as a decision to the SolverContext
switch (newSelectionState)
{
// Assert-decision -> Selected
case FeatureSelectionStates.Selected:
solverContext.AddOrModifyDecisionAssumption(toggledFeatureSelection.FeatureIdentifier, true, typeof(FeatureSelection));
toggledFeatureSelection.SelectionState = FeatureSelectionStates.Selected;
toggledFeatureSelection.ToggledByUser = true;
break;
// Assert-decision -> Deselected
case FeatureSelectionStates.Deselected:
solverContext.AddOrModifyDecisionAssumption(toggledFeatureSelection.FeatureIdentifier, false, typeof(FeatureSelection));
toggledFeatureSelection.SelectionState = FeatureSelectionStates.Deselected;
toggledFeatureSelection.ToggledByUser = true;
break;
// Retract-decision -> Unselected
case FeatureSelectionStates.Unselected:
solverContext.RemoveDecisionAssumption(toggledFeatureSelection.FeatureIdentifier, typeof(FeatureSelection));
toggledFeatureSelection.SelectionState = FeatureSelectionStates.Unselected;
toggledFeatureSelection.ToggledByUser = false;
break;
}
// Call feedback algorithm and then recalculate all custom functions
List <FeatureSelection> changedFeatureSelections = new List <FeatureSelection>();
bool decisionIsValid = ApplyFeedbackAlgorithm(ref changedFeatureSelections);
RecalculateCustomFunctions(ref changedFeatureSelections);
//
return(changedFeatureSelections);
}
