def move_node()

in project/paperbench/paperbench/gui/app.py [0:0]
34 lines of code
10 McCabe index (conditional complexity)

def move_node():
    """Moves a node up or down relative to its siblings."""
    with lock:
        data = sanitize_request_data(request.json)
        node_id = data.get("node_id")
        direction = data.get("direction")  # "up" or "down"

        try:
            with open(app.config["PATH_TO_PAPER"] / app.config["RUBRIC_FILE_NAME"], "r") as f:
                rubric = json.load(f)

            root = app.config["NODE_TYPE"].from_dict(rubric)

            try:
                parent = root.get_parent(node_id)
            except ValueError as e:
                return jsonify({"status": "error", "message": "Cannot move the root node."})

            current_idx = next(i for i, task in enumerate(parent.sub_tasks) if task.id == node_id)

            if direction == "up" and current_idx > 0:
                new_idx = current_idx - 1
            elif direction == "down" and current_idx < len(parent.sub_tasks) - 1:
                new_idx = current_idx + 1
            else:
                return jsonify(
                    {"status": "error", "message": "Cannot move node further in that direction."}
                )

            # Swap nodes
            new_sub_tasks = list(parent.sub_tasks)
            new_sub_tasks[current_idx], new_sub_tasks[new_idx] = (
                new_sub_tasks[new_idx],
                new_sub_tasks[current_idx],
            )

            new_parent = parent.set_sub_tasks(new_sub_tasks)
            new_root = root.replace(parent.id, new_parent)

            with open(app.config["PATH_TO_PAPER"] / app.config["RUBRIC_FILE_NAME"], "w") as f:
                json.dump(new_root.to_dict(), f, indent=4)

            return jsonify({"status": "success"})

        except Exception as e:
            return jsonify({"status": "error", "message": f"Error moving node {node_id}: {str(e)}"})