import IGirafeContext from '../context/icontext.js';
import Feature from 'ol/Feature.js';
import AbstractSearchClient, { BaseSearchClientConfig } from './abstractsearchclient.js';
export type GmfSearchClientConfig = BaseSearchClientConfig & {
    type: 'geomapfish';
};
/**
 * A search provider for the GeoMapFish backend.
 * Extends the AbstractSearchClient and provides methods tailored to processing GMF-specific search results.
 *
 * Configuration:
 * - providerName: The name of the search provider, or geomapfish.
 * - url: The URL of the GMF search service.
 * - resultSrid: The spatial reference system (SRID) of the search results. Default same as map SRID.
 */
declare class GmfSearchClient extends AbstractSearchClient {
    protected searchFilterQueryParameter: string;
    private readonly layerTreeCategory;
    constructor(context: IGirafeContext, config: GmfSearchClientConfig);
    /**
     * Create the search capabilities URL by using the search URL and appending '/capabilities' to it.
     */
    private get searchCapabilitiesUrl();
    /**
     * Returns a list of categories that can be searched by
     */
    getSearchCategories(): Promise<string[]>;
    /**
     * If the search request should filter results by layer tree elements, the URL needs to include an additional parameter
     * `null_category` to include layer results.
     */
    protected buildRequestUrl(term: string, filter: string[]): URL;
    groupedResults(results: Feature[]): Record<string, Feature[]>;
}
export default GmfSearchClient;