private static TreeNode[] convertRecursively(TreeRequest tm)
{
int treeCount = tm.trees != null ? tm.trees.Length : 0;
int blobCount = tm.blobs != null ? tm.blobs.Length : 0;
TreeNode.Builder tb = new TreeNode.Builder(
new List<TreeTreeReference>(treeCount),
new List<TreeBlobReference>(blobCount)
);
// Add the blobs to the Tree.Builder:
if ((tm.blobs != null) && (blobCount > 0))
tb.Blobs.AddRange(from bl in tm.blobs select (TreeBlobReference)new TreeBlobReference.Builder(bl.name, BlobID.TryParse(bl.blobid).Value));
// Create our output list:
List<TreeNode> trees = new List<TreeNode>(1 + treeCount /* + more, could calculate recursively but why bother */);
// Dummy placeholder for this Tree:
trees.Add((TreeNode)null);
for (int i = 0; i < treeCount; ++i)
{
// If we have a `treeid` then skip recursion:
if (!String.IsNullOrEmpty(tm.trees[i].treeid))
{
tb.Trees.Add(new TreeTreeReference.Builder(tm.trees[i].name, TreeID.TryParse(tm.trees[i].treeid).Value));
continue;
}
// Convert the child trees:
TreeNode[] childTrees = convertRecursively(tm.trees[i].tree);
// Add them to the output list:
trees.AddRange(childTrees);
// Add the child TreeTreeReference to this Tree.Builder:
tb.Trees.Add(new TreeTreeReference.Builder(tm.trees[i].name, childTrees[0].ID));
}
// Set the first element (was a placeholder) to the built Tree:
trees[0] = tb;
return trees.ToArray();
}
public async Task<ActionResult> CreateTree(TreeRequest tm)
{
TreeID root;
ImmutableContainer<TreeID, TreeNode> trees;
// Recursively convert the JSON-friendly `TreeModel` into our domain-friendly `Tree`s:
TreeNode[] treeArr = convertRecursively(tm);
root = treeArr[0].ID;
trees = new ImmutableContainer<TreeID, TreeNode>(tr => tr.ID, treeArr);
// Persist the tree:
var etree = await cms.trrepo.PersistTree(root, trees);
if (etree.HasErrors) return ErrorJson(etree);
// Return the `Tree` recursive model we persisted:
return Json(new { tree = projectTreeJSON(root, trees) });
}