import { Facet, Filter } from '@empathyco/x-types';
/**
 * An object containing a list of facets, and the group they belong to.
 *
 * The facet group is used to perform operations over a list of facets. For example, some APIs
 * have dynamic facets. This means that depending on the selected filters, some facets can be
 * returned. For example if you select `category:television`, a new facet called *Screen size* might
 * appear. And, because now filters are stored in a dictionary instead of an array, and overridden
 * with each request, when the user performs a new query, we have to remove all the `Screen size`
 * filters because we don't know if the API will return them or not in the new query.
 *
 * @public
 */
export interface FacetsGroup {
    /** The list of facets that belong to the group. */
    facets: Facet[];
    /** The group unique identifier. */
    id: string;
}
/**
 * An object containing additional context regarding the filters.
 *
 * @public
 */
export interface FiltersMetadata {
    /** Flag to prevent the clearing of sticky filters. */
    keepSticky?: boolean;
}
/**
 * Service to manipulate the filters.
 *
 * @public
 */
export interface FacetsService {
    /**
     * Deselects the selected filters.
     *
     * @param facetIds - An optional list of facets ids from whom deselect the filters.
     * @param metadata - An optional object with the event metadata.
     */
    clearFilters(facetIds?: Array<Facet['id']>, metadata?: FiltersMetadata): void;
    /**
     * Deselects the selected filters. This is intended to be used from the wiring where currently
     * we can only provide one argument.
     *
     * @param payload - The event payload that can contain the list of facets ids from whom deselect
     * the filters and the event metadata.
     */
    clearFiltersWithMetadata(payload?: {
        facetIds?: Array<Facet['id']>;
        metadata?: FiltersMetadata;
    }): void;
    /**
     * Deselects filter, adding it to the store if it was not present.
     *
     * @param filter - The filter to deselect.
     * @param metadata - An optional object with the event metadata.
     */
    deselect(filter: Filter, metadata?: FiltersMetadata): void;
    /**
     * Replaces the facets of the group with the new ones. It ignores the provided filters selected
     * state, replacing it with the previous selected filter.
     *
     * @param facetsGroup - An object containing the id of the facets group, and the list of new
     * facets to store.
     */
    updateFacets(facetsGroup: FacetsGroup): void;
    /**
     * Selects preselected filter/filters, adding it/them to the store if it/they are not present.
     *
     */
    selectPreselectedFilters(): void;
    /**
     * Replaces the preselected filters with the new ones.
     *
     * @param filters - An array of filters.
     */
    updatePreselectedFilters(filters: Filter[]): void;
    /**
     * Sets the facets of the group. This method just replaces the facets, and keeps the given facet's
     * filters selected state as it is.
     *
     * @param facetsGroup - An object containing the id of the facets group, and the list of new
     * facets to store.
     */
    setFacets(facetsGroup: FacetsGroup): void;
    /**
     * Selects filter/filters, adding it/them to the store if it/they was not present.
     *
     * @param filter - The filter/filters to select.
     */
    select(filter: Filter | Filter[]): void;
    /**
     * Sets the query.
     *
     * @param query - The query searched.
     */
    setQuery(query: string): void;
    /**
     * Selects a deselected filter, and deselects a selected filter, adding them to the store
     * in both cases.
     *
     * @param filter - The filter to toggle.
     */
    toggle(filter: Filter): void;
}
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