import type { Row, Table } from '@tanstack/react-table';
import { TableState } from '@tanstack/table-core';
import { DataTableColumnDef, DataTableQuery, DataTableSort, GroupedData, InternalFilter, InternalQuery } from '../data-table.types';
export declare function queryToTableState(query: InternalQuery): Partial<TableState>;
export declare function getColumnsWithFilterFn<TData, TValue>(columns?: DataTableColumnDef<TData, TValue>[], filters?: InternalFilter[]): DataTableColumnDef<TData, TValue>[];
export declare function groupData<TData, TValue = unknown>(data: TData[], group_by?: string, columns?: DataTableColumnDef<TData, TValue>[]): GroupedData<TData>[];
/**
 * Checks if there is an active filter, search, or updated sort/grouping
 * compared to the defaults. Used to distinguish zero state from empty state.
 */
export declare const hasActiveQuery: (tableQuery: InternalQuery, defaultSort?: DataTableSort) => boolean;
export declare const hasQueryChanged: (oldQuery: InternalQuery | null, newQuery: InternalQuery) => boolean;
export declare function getInitialColumnVisibility<TData, TValue>(columns?: DataTableColumnDef<TData, TValue>[]): Record<string, boolean> | {};
export declare function transformToDataTableQuery(query: InternalQuery): DataTableQuery;
export declare function dataTableQueryToInternal(query: DataTableQuery): InternalQuery;
/** Leaf count from the row tree. Do not use `model.flatRows` here: with `filterFromLeafRows`, TanStack's filtered model leaves `flatRows` empty while `rows` is correct. */
export declare function countLeafRows<T>(rows: Row<T>[]): number;
/** Difference between pre- and post-filter leaf rows (client mode only). */
export declare function getClientHiddenLeafRowCount<T>(table: Table<T>): number;
export declare function hasActiveTableFiltering<T>(table: Table<T>): boolean;
export declare function getDefaultTableQuery(defaultSort?: DataTableSort, oldQuery?: DataTableQuery): InternalQuery;
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