import type { AggregationFn, GroupFn, GroupIdFn, RowGroup, RowLeaf } from "@1771technologies/lytenyte-shared";
import type { HavingFilterFn, LabelFilter } from "../../use-client-data-source.js";
export interface RootNode<T> {
    readonly kind: "root";
    readonly children: RootMap<T>;
    readonly groupLookup: Map<string, GroupNode<T>>;
    readonly maxDepth: number;
}
export interface LeafNode<T> {
    readonly parent: GroupNode<T> | RootNode<T>;
    readonly kind: "leaf";
    readonly key: string | null | number;
    readonly row: RowLeaf<T>;
}
export interface GroupNode<T> {
    readonly kind: "branch";
    readonly id: string;
    readonly row: RowGroup & {
        __children: Map<string | null | number, GroupNode<T> | LeafNode<T>>;
        __invalidate: boolean;
    };
    readonly last: boolean;
    readonly key: string | null | number;
    readonly children: Map<string | null | number, GroupNode<T> | LeafNode<T>>;
    readonly path: (string | null)[];
    readonly leafs: number[];
    leafIds: Set<string>;
    readonly parent: GroupNode<T> | RootNode<T>;
}
export type RootMap<T> = Map<string | null | number, GroupNode<T> | LeafNode<T>>;
export declare function useGroupTree<T>(leafs: RowLeaf<T>[], workingSet: number[], group: GroupFn<T> | undefined | null, groupIdFn: GroupIdFn, rowGroupCollapseBehavior: "no-collapse" | "last-only" | "full-tree", labelFilter: (LabelFilter | null)[] | null | undefined, having: (HavingFilterFn | null)[] | null | undefined, agg: AggregationFn<T> | undefined | null): RootNode<T> | null;