import type { CoreEngine } from '../../../../app/engine.js';
import type { FacetValueState } from '../../../../features/facets/facet-api/value.js';
import type { FacetSortCriterion } from '../../../../features/facets/facet-set/interfaces/request.js';
import { type Controller } from '../../../controller/headless-controller.js';
import { type FacetOptions } from './headless-core-facet-options.js';
export type { FacetOptions, FacetValueState };
interface CoreFacetProps {
    /**
     * The options for the core `Facet` controller.
     * */
    options: FacetOptions;
}
/**
 * The `Facet` controller allows you to create a search interface component that the end user
 * can use to refine a query by selecting filters based on item metadata (that is, field values).
 * If you have enabled a [Dynamic Navigation Experience (DNE)](https://docs.coveo.com/en/m2na0333/)
 * model, the `Facet` controller automatically reorders facet values according to the user query.
 *
 * Examples:
 * - [facet.fn.tsx](https://github.com/coveo/ui-kit/blob/main/samples/headless/search-react/src/components/facet/facet.fn.tsx)
 * - [facet-search.tsx](https://github.com/coveo/ui-kit/blob/main/samples/headless/search-react/src/components/facet/facet-search.tsx)
 * - [facet.class.tsx](https://github.com/coveo/ui-kit/blob/main/samples/headless/search-react/src/components/facet/facet.class.tsx)
 *
 * @group Controllers
 * @category Facet
 */
export interface Facet extends CoreFacet {
    /**
     * Provides methods to search the facet's values.
     */
    facetSearch: FacetSearch;
    /**
     * The state of the `Facet` controller.
     */
    state: FacetState;
}
/**
 * The `Facet` headless controller offers a high-level interface for designing a common facet UI controller.
 *
 * @group Controllers
 * @category Facet
 */
export interface CoreFacet extends Controller {
    /**
     * Toggles the specified facet value.
     *
     * @param selection - The facet value to toggle.
     */
    toggleSelect(selection: FacetValue): void;
    /**
     * Toggles exclusion of the specified facet value.
     *
     * @param selection - The facet value to toggle exclusion.
     */
    toggleExclude(selection: FacetValue): void;
    /**
     * Toggles the specified facet value, deselecting others.
     *
     * @param selection - The facet value to toggle.
     */
    toggleSingleSelect(selection: FacetValue): void;
    /**
     * Excludes the specified facet value, deselecting others.
     *
     * @param selection - The facet value to toggle exclusion.
     */
    toggleSingleExclude(selection: FacetValue): void;
    /**
     * Checks whether the specified facet value is selected.
     *
     * @param value - The facet value to check.
     * @returns Whether the specified facet value is selected.
     */
    isValueSelected(value: FacetValue): boolean;
    /**
     * Checks whether the specified facet value is excluded.
     *
     * @param value - The facet value to check.
     * @returns Whether the specified facet value is excluded.
     */
    isValueExcluded(value: FacetValue): boolean;
    /**
     * Deselects all facet values.
     * */
    deselectAll(): void;
    /**
     * Sorts the facet values according to the specified criterion.
     *
     * @param criterion - The criterion to use for sorting values.
     */
    sortBy(criterion: FacetSortCriterion): void;
    /**
     * Checks whether the facet values are sorted according to the specified criterion.
     *
     * @param criterion - The criterion to compare.
     * @returns Whether the facet values are sorted according to the specified criterion.
     */
    isSortedBy(criterion: FacetSortCriterion): boolean;
    /**
     * Increases the number of values displayed in the facet to the next multiple of the originally configured value.
     */
    showMoreValues(): void;
    /**
     * Sets the number of values displayed in the facet to the originally configured value.
     * */
    showLessValues(): void;
    /**
     * Enables the facet. I.e., undoes the effects of `disable`.
     */
    enable(): void;
    /**
     * Disables the facet. I.e., prevents it from filtering results.
     */
    disable(): void;
    /**
     * The state of the `Facet` controller.
     * */
    state: CoreFacetState;
}
/**
 * A scoped and simplified part of the headless state that is relevant to the `Facet` controller.
 *
 * @group Controllers
 * @category Facet
 */
export interface FacetState extends CoreFacetState {
    /** The state of the facet's searchbox. */
    facetSearch: FacetSearchState;
}
/**
 * A scoped and simplified part of the headless state that is relevant to the `Facet` controller.
 *
 * @group Controllers
 * @category Facet
 */
export interface CoreFacetState {
    /** The facet ID. */
    facetId: string;
    /** The values of the facet. */
    values: FacetValue[];
    /** The active sortCriterion of the facet. */
    sortCriterion: FacetSortCriterion;
    /** `true` if a search is in progress and `false` otherwise. */
    isLoading: boolean;
    /** `true` if there is at least one non-idle value and `false` otherwise. */
    hasActiveValues: boolean;
    /** `true` if there are more values to display and `false` otherwise. */
    canShowMoreValues: boolean;
    /** `true` if fewer values can be displayed and `false` otherwise. */
    canShowLessValues: boolean;
    /** Whether the facet is enabled and its values are used to filter search results. */
    enabled: boolean;
    /** The tabs on which the facet should be enabled or disabled. */
    tabs?: {
        included?: string[];
        excluded?: string[];
    };
    /**
     * The name to display if this field is used by the Facet Generator in your interface.
     * See [Change Facet Generator options](https://docs.coveo.com/en/n9sd0159#change-facet-generator-options).
     */
    label?: string;
}
export interface FacetSearch {
    /**
     * Updates the facet search query.
     *
     * @param text - The query to search.
     * */
    updateText(text: string): void;
    /**
     * Shows more facet search results.
     * */
    showMoreResults(): void;
    /**
     * Performs a facet search.
     * */
    search(): void;
    /**
     * Selects a facet search result.
     *
     * @param value - The search result to select.
     * */
    select(value: SpecificFacetSearchResult): void;
    /**
     * Excludes a facet search result.
     *
     * @param value - The search result to exclude.
     * */
    exclude(value: SpecificFacetSearchResult): void;
    /**
     * Selects a search result while deselecting facet values.
     *
     * @param value - The search result to select.
     * */
    singleSelect(value: SpecificFacetSearchResult): void;
    /**
     * Excludes a search result while including facet values.
     *
     * @param value - The search result to exclude.
     * */
    singleExclude(value: SpecificFacetSearchResult): void;
    /**
     * Resets the query and empties the values.
     * */
    clear(): void;
    /**
     * Updates the facet value captions.
     * @param captions - A dictionary that maps index field values to facet value display names.
     */
    updateCaptions(captions: Record<string, string>): void;
}
export interface FacetSearchState {
    /**
     * The facet search results.
     * */
    values: SpecificFacetSearchResult[];
    /**
     * `true` if the facet search is in progress and `false` otherwise.
     * */
    isLoading: boolean;
    /**
     * Whether more values are available.
     * */
    moreValuesAvailable: boolean;
    /** The current query in the facet search box. */
    query: string;
}
export interface SpecificFacetSearchResult {
    /**
     * The custom facet value display name, as specified in the `captions` argument of the facet request.
     */
    displayValue: string;
    /**
     * The original facet value, as retrieved from the field in the index.
     */
    rawValue: string;
    /**
     * An estimate of the number of result items matching both the current query and
     * the filter expression that would get generated if the facet value were selected.
     */
    count: number;
}
export interface FacetValue {
    /**
     * Whether a facet value is filtering results (`selected`) or not (`idle`).
     * */
    state: FacetValueState;
    /**
     * The number of results that have the facet value.
     * */
    numberOfResults: number;
    /**
     * The facet value.
     * */
    value: string;
}
/**
 * Creates a `Facet` controller instance.
 *
 * @param engine - The headless engine.
 * @param props - The configurable `Facet` properties.
 * @param optionsSchema - The facet options schema to use when validating options upon facet initialization.
 * @returns A `Facet` controller instance.
 *
 * @group Controllers
 * @category Facet
 * */
export declare function buildCoreFacet(engine: CoreEngine, props: CoreFacetProps, optionsSchema?: import("@coveo/bueno").Schema<Required<FacetOptions>>): CoreFacet;