granular route update APIs for RR

router.ts

  let cloneDataRoutes = (
  routes: AgnosticDataRouteObject[]
): AgnosticDataRouteObject[] => {
  return routes.map((route) => {
    if (route.children === undefined) return route;
    return {
      ...route,
      children: cloneDataRoutes(route.children),
    };
  });
};


  
  function addRoute(newRoute: AgnosticDataRouteObject, parentId?: string) {
    if (inFlightDataRoutes === undefined) {
      inFlightDataRoutes = cloneDataRoutes(dataRoutes);
    }

    let root: AgnosticDataRouteObject = {
      id: Symbol("root").toString(),
      children: inFlightDataRoutes,
    };
    let recurse = (node: AgnosticDataRouteObject) => {
      if (node.id === parentId) {
        if (node.children === undefined) {
          node.children = [];
        }
        node.children.push(newRoute);
        return;
      }
      node.children?.forEach(recurse);
    };
    recurse(root);
  }

  function updateRoute(id: string, newRoute: AgnosticDataRouteObject) {
    if (inFlightDataRoutes === undefined) {
      inFlightDataRoutes = cloneDataRoutes(dataRoutes);
    }

    let root: AgnosticDataRouteObject = {
      id: Symbol("root").toString(),
      children: inFlightDataRoutes,
    };
    let recurse = (node: AgnosticDataRouteObject) => {
      if (node.children === undefined) return;
      let index = node.children.findIndex((child) => child.id === id);
      if (index >= 0) {
        node.children[index] = newRoute;
        return;
      }
      node.children.forEach(recurse);
    };
    recurse(root);
  }

  function deleteRoute(id: string) {
    if (inFlightDataRoutes === undefined) {
      inFlightDataRoutes = cloneDataRoutes(dataRoutes);
    }

    let root: AgnosticDataRouteObject = {
      id: Symbol("root").toString(),
      children: inFlightDataRoutes,
    };
    let recurse = (node: AgnosticDataRouteObject) => {
      if (node.children === undefined) return;
      let index = node.children.findIndex((child) => child.id === id);
      if (index >= 0) {
        node.children.splice(index, 1);
        if (node.children.length === 0) {
          node.children = undefined;
        }
        return;
      }
      node.children.forEach(recurse);
    };
    recurse(root);
  }