import { OnDestroy } from '@angular/core';
import { Observable } from 'rxjs';
import type { FilterComponent } from '../components/filter/filter.component';
import { IFilterConfigItem } from '../interfaces/config.interface';
import { KeyValue } from '../interfaces/external-params.interface';
import { FsFilterConfig } from '../models/filter-config';
import { BaseItem } from '../models/items/base-item';
import * as i0 from "@angular/core";
export declare class FilterController implements OnDestroy {
    filter: FilterComponent;
    private _ready$;
    private _items;
    private _config;
    private _init$;
    private _change$;
    private _disabled$;
    private _destroy$;
    private _itemsState$;
    private _persistanceController;
    private _savedFilterController;
    private _queryParamController;
    private _keywordController;
    private _sortController;
    get items(): BaseItem<IFilterConfigItem>[];
    get itemNames(): string[];
    get config(): FsFilterConfig;
    get init$(): Observable<void>;
    get change$(): Observable<BaseItem<IFilterConfigItem>[]>;
    change(): void;
    get ready$(): Observable<boolean>;
    ngOnDestroy(): void;
    init(config: FsFilterConfig): void;
    getItem(name: string): BaseItem<IFilterConfigItem>;
    disableFilters(): void;
    enableFilters(): void;
    get disabled$(): Observable<boolean>;
    /**
     * Shared upstream that emits the current items array whenever any item's
     * visible$, hasValue$, or secondaryVisible$ changes. All visibility-derived
     * observables in the filter should source from here so the work merging
     * per-item streams happens once.
     */
    get itemsState$(): Observable<BaseItem<IFilterConfigItem>[]>;
    /**
     * True when the chips component would render any chip — a value chip,
     * placeholder, "More filters" select, saved-filter select, or "Clear filters".
     * Mirrors the visibility logic inside FsFilterChipsComponent's template.
     */
    get chipVisible$(): Observable<boolean>;
    filtersClear(): void;
    get queryParam(): Record<string, unknown>;
    get query(): KeyValue;
    set values(values: Record<string, unknown>);
    get values(): Record<string, unknown>;
    private _getInitValues;
    private _initItems;
    private _initEnabledItems;
    private _addItems;
    private _initChanges;
    static ɵfac: i0.ɵɵFactoryDeclaration<FilterController, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FilterController>;
}