+export type ProjectState = Array<TreeItem<Project>>;
+
+function findTreeItem<T>(tree: Array<TreeItem<T>>, itemId: string): TreeItem<T> | undefined {
+ let item;
+ for (const t of tree) {
+ item = t.id === itemId
+ ? t
+ : findTreeItem(t.items ? t.items : [], itemId);
+ if (item) {
+ break;
+ }
+ }
+ return item;
+}
+
+function resetTreeActivity<T>(tree: Array<TreeItem<T>>): boolean | undefined {
+ let item;
+ for (const leaf of tree) {
+ item = leaf.active === true
+ ? leaf.active = false
+ : resetTreeActivity(leaf.items ? leaf.items : []);
+ }
+ return item;
+}