import type { SearchEngine } from '../../../app/search-engine/search-engine.js';
import { type Controller } from '../../controller/headless-controller.js';
import type { FacetValue } from '../facet/headless-facet.js';
import { type AutomaticFacetGeneratorOptions } from './headless-automatic-facet-generator-options.js';
export type { AutomaticFacetGeneratorOptions };
/**
 * The `AutomaticFacetGenerator` headless controller offers a high-level interface for rendering automatic facets.
 *
 * Unlike regular facets that need to be explicitly defined and requested in the query, automatic facets are dynamically
 * generated by the index in response to the query.
 *
 * To learn more about the automatic facet generator feature, see: [About the Facet Generator](https://docs.coveo.com/en/n9sd0159/).
 *
 * Examples:
 * - [automatic-facet-generator.fn.tsx](https://github.com/coveo/ui-kit/blob/main/samples/headless/search-react/src/components/automatic-facet-generator/automatic-facet-generator.fn.tsx)
 * - [automatic-facet-generator.class.tsx](https://github.com/coveo/ui-kit/blob/main/samples/headless/search-react/src/components/automatic-facet-generator/automatic-facet-generator.class.tsx)
 *
 * @group Controllers
 * @category AutomaticFacetGenerator
 */
export interface AutomaticFacetGenerator extends Controller {
    /**
     * The state of the `AutomaticFacetGenerator` controller.
     */
    state: AutomaticFacetGeneratorState;
}
/**
 * A scoped and simplified part of the headless state that is relevant to the `AutomaticFacetGenerator` controller.
 *
 * @group Controllers
 * @category AutomaticFacetGenerator
 */
export interface AutomaticFacetGeneratorState {
    /**
     * The list of automatic facet controllers.
     */
    automaticFacets: AutomaticFacet[];
}
export interface AutomaticFacetGeneratorProps {
    /**
     * The options for the `AutomaticFacetGenerator` controller.
     * */
    options: AutomaticFacetGeneratorOptions;
}
/**
 * A scoped and simplified part of the headless state that is relevant to the `Automatic Facet` controller.
 *
 * @group Controllers
 * @category AutomaticFacetGenerator
 */
export interface AutomaticFacetState {
    /**
     * The automatic facet field.
     */
    field: string;
    /**
     * The automatic facet label.
     */
    label: string;
    /**
     * The automatic facet values.
     */
    values: FacetValue[];
}
/**
 * The `AutomaticFacet` controller allows you to create a search interface component that the end user
 * can interact with to refine a query by selecting filters based on item metadata (that is, field values). Unlike regular facets that
 * need to be explicitly defined and requested in the query, automatic facets are dynamically generated by the index
 * in response to the query.
 *
 * To learn more about the automatic facet generator feature, see: [About the Facet Generator](https://docs.coveo.com/en/n9sd0159/).
 *
 * @group Controllers
 * @category AutomaticFacetGenerator
 */
export interface AutomaticFacet extends Controller {
    /**
     * Toggles the specified automatic facet value.
     *
     * @param selection - The facet value to toggle.
     */
    toggleSelect(selection: FacetValue): void;
    /**
     * Deselects all automatic facet values.
     * */
    deselectAll(): void;
    /**
     *  The state of the `AutomaticFacet` controller.
     */
    state: AutomaticFacetState;
}
/**
 * Creates a `AutomaticFacetGenerator` instance.
 *
 * @param engine - The headless engine.
 * @param props - The automatic facets props.
 * @returns A `AutomaticFacetGenerator` controller instance.
 *
 * @group Controllers
 * @category AutomaticFacetGenerator
 */
export declare function buildAutomaticFacetGenerator(engine: SearchEngine, props: AutomaticFacetGeneratorProps): AutomaticFacetGenerator;