public NavTreeViewModel Build()
{
var leafIndex = 1;
var treeRootNode = TreeItem <NavTreeItemModel> .CreateParentNode("root", Array.Empty <TreeItem <NavTreeItemModel> >());
foreach (var state in _internalState)
{
AddNavTreeItem(state, treeRootNode);
}
return(new NavTreeViewModel
(
treeRootNode.Children,
treeRootNode.Children.GetFirstSelectableTestState(),
Enumerable.Empty <TreeItem <NavTreeItemModel> >()
));
void AddNavTreeItem(InternalStateItem state, TreeItem <NavTreeItemModel> parentNode)
{
var nodes = state.NodeTitle.Split('/');
var currentTitle = nodes[0];
var currentNode = parentNode.Children.SingleOrDefault(o => o.DisplayName == currentTitle);
var currentNodeExists = currentNode != null;
var isLeafNode = nodes.Length == 1;
//Leaf Node
if (isLeafNode)
{
var leafChild = TreeItem <NavTreeItemModel> .CreateLeafNode(leafIndex, currentTitle, state.Type, new NavTreeItemModel(state.ViewModel, state.IsCarltonComponent));
parentNode.Children = parentNode.Children.Append(leafChild);
leafIndex++;
return;
}
//Parent Does Not Exist
if (!currentNodeExists)
{
var newNode = TreeItem <NavTreeItemModel> .CreateParentNode(currentTitle, Array.Empty <TreeItem <NavTreeItemModel> >());
parentNode.Children = parentNode.Children.Append(newNode);
currentNode = newNode;
}
//Move to the Next Node
state.PopCurrentFromNodeTitle();
AddNavTreeItem(state, currentNode);
};
}
