import { SearchQuery, SearchTarget, SortField, SortOrder } from '@mtna/search-manager-ui';
import { MtnaSearchStateConfig } from '../models/index';
export declare type UpdatedQueryOutput = {
    alreadyLoadedTarget: boolean;
    query: SearchQuery;
    useDefaults: boolean;
    concatResults: boolean;
};
/**
 * Given several parameters, derrive an updated search query to perform. This will use the
 * `lastQuery` values initially, any properties from the partial query will override the values from the last query.
 *
 * @param query A new partial query to search with
 * @param lastQuery The last successful search query
 * @param targetId Optional search target ID to use
 * @param useDefaults Whether to use the default sorting and filters specified by the SearchTarget. This will override any values passed in the query.
 * @param concatResults Whether to concatenate the new results on the existing results on the state. This is typical for a load more.
 * @param target Optionally loaded search target currently on the state
 * @param searchStateConfig Optional globally injected search state configurations
 * @returns An object with the updated query, whether to use search target defaults, and whether the search target is already loaded on the state.
 */
export declare function getUpdatedQuery(query: Partial<SearchQuery>, lastQuery: SearchQuery, targetId?: string, useDefaults?: boolean, concatResults?: boolean, target?: SearchTarget, searchStateConfig?: MtnaSearchStateConfig): UpdatedQueryOutput;
/** The type expected by the custom {@link mapUpdatedQuery} operator from upstream. */
export declare type MapUpdatedQueryUpstrem = [
    {
        targetId?: string | undefined;
        query: Partial<SearchQuery>;
        useDefaults?: boolean | undefined;
        concatResults?: boolean;
    },
    SearchQuery,
    SearchTarget | undefined
];
/**
 * A custom rxjs operator that maps to an {@link UpdatedQueryOutput}
 * @param searchStateConfig Optional search state configuration object
 * @returns pipable operator that will output an {@link UpdatedQueryOutput}
 */
export declare function mapUpdatedQuery(searchStateConfig?: MtnaSearchStateConfig): import("rxjs").OperatorFunction<MapUpdatedQueryUpstrem, UpdatedQueryOutput>;
/**
 * Function to derrive an updated array of SortField's.
 * @param field the current field
 * @param order the order of the current field
 * @param sortFields an array of sort fields
 * @returns updated SortField[]
 */
export declare function getUpdatedSortFields(field: string, order: SortOrder, sortFields: SortField[] | null | undefined): SortField[];