import Feature from 'ol/Feature.js';
import { GeoJSON } from 'ol/format.js';
import GirafeSingleton from '../../base/GirafeSingleton.js';
import IGirafeContext from '../context/icontext.js';
import { Extent } from 'ol/extent.js';
export type BaseSearchClientConfig = {
    type: string;
    providerName: string;
    url: string;
    resultSrid: string;
};
export declare const SEARCH_PROVIDER_DEFAULT = "default";
export declare const SEARCH_GROUP_DEFAULT = "default";
export declare const SEARCH_GROUP_RECENTER_MAP = "recenter_map";
declare abstract class AbstractSearchClient extends GirafeSingleton {
    readonly type: string;
    readonly providerName: string;
    protected url: URL;
    protected readonly resultSrid: string;
    protected readonly searchTermPlaceholder = "###SEARCHTERM###";
    protected readonly searchLangPlaceholder = "###SEARCHLANG###";
    protected searchTermQueryParameter: string | undefined;
    protected searchLangQueryParameter: string | undefined;
    protected searchFilterQueryParameter: string | undefined;
    protected readonly geoJsonFormatter: GeoJSON<Feature<import("ol/geom.js").Geometry, {
        [x: string]: any;
    }>>;
    protected constructor(context: IGirafeContext, config: BaseSearchClientConfig);
    initializeSingleton(): Promise<void>;
    protected get mapProjection(): import("ol/proj.js").Projection;
    /**
     * Sanitize the url by removing placeholders that are wrongfully interpreted as URL fragments by the URL parser.
     * The parameters are introduced again and set when fetching the search results.
     */
    private sanitizeUrl;
    private extractQueryParamWithPlaceholder;
    private sanitizePlaceholder;
    /**
     * Returns a list of categories that can be searched by.
     */
    getSearchCategories(): Promise<string[]>;
    protected buildRequestUrl(term: string, filter: string[]): URL;
    /**
     * Executes a search request with the provided search term.
     */
    requestSearch(term: string, filter: string[], abortController: AbortController): Promise<Feature[]>;
    /**
     * Parses the response from the server and returns an array of features.
     * Features must have the following properties to be used correctly with the search component:
     * - `provider`
     * - `label`
     * - `label_html`: optional, for styled entries in the search results list
     * - `actions`: optional, a list of SearchResultsActions
     */
    protected parseResponse(response: Response): Promise<Feature[]>;
    /**
     * Groups the results by the default group, which equivalates to no grouping. Should be overridden by the client class
     * to group results by a custom criteria like search category.
     */
    groupedResults(results: Feature[]): Record<string, Feature[]>;
    /**
     * Returns a bbox around the geometry that is 50% larger than the geometry.
     */
    getZoomToBbox(feature: Feature): Extent | undefined;
    /**
     * Retrieves the translation key for a given category. Default: use category string directly.
     */
    getI18nKeyForCategory(category: string): string;
}
export default AbstractSearchClient;