Function addToPath

plugin/data.ts:9–36

(
  moduleId: string,
  tree: ModuleTree,
  modulePath: string[],
  node: MappedNode,
)

}

const addToPath = (
  moduleId: string,
  tree: ModuleTree,
  modulePath: string[],
  node: MappedNode,
): void => {
  if (modulePath.length === 0) {
    throw new Error(`Error adding node to path ${moduleId}`);
  }

  const [head, ...rest] = modulePath;

  if (rest.length === 0) {
    tree.children.push({ ...node, name: head });
    return;
  } else {
    let newTree = tree.children.find(
      (folder): folder is ModuleTree => folder.name === head && isModuleTree(folder),
    );

    if (!newTree) {
      newTree = { name: head, children: [] };
      tree.children.push(newTree);
    }
    addToPath(moduleId, newTree, rest, node);
    return;
  }
};

// TODO try to make it without recursion, but still typesafe
const mergeSingleChildTrees = (tree: ModuleTree): ModuleTree | ModuleTreeLeaf => {