import { EventEmitter, OnInit, OnDestroy } from '@angular/core';
import { FormBuilder } from '@angular/forms';
import { PepQueryBuilderSectionComponent } from './query-builder-section/query-builder-section.component';
import { IPepQueryBuilderField, IPepQuerySection, IPepQueryItem } from './common/model/legacy';
import { PepQueryStructureService } from './common/services/query-structure.service';
import { IPepQueryDepth } from './common/model/structure';
import { Subscription } from 'rxjs';
import * as i0 from "@angular/core";
export declare class PepQueryBuilderComponent implements OnInit, OnDestroy {
    private _fb;
    queryStructureService: PepQueryStructureService;
    _query: IPepQuerySection | IPepQueryItem;
    set query(object: IPepQuerySection | IPepQueryItem);
    set fields(list: Array<IPepQueryBuilderField>);
    set variableFields(list: Array<IPepQueryBuilderField>);
    set maxDepth(value: number);
    queryChange: EventEmitter<IPepQuerySection | IPepQueryItem>;
    formValidationChange: EventEmitter<boolean>;
    root: PepQueryBuilderSectionComponent;
    _formSubscription$: Subscription;
    _outputQuerySubscription$: Subscription;
    _lastFormValidStatus: boolean;
    depth: IPepQueryDepth;
    hasFields: boolean;
    constructor(_fb: FormBuilder, queryStructureService: PepQueryStructureService);
    ngOnInit(): void;
    setupForm(): void;
    initDepth(): void;
    /**
     * builds UI query structure as soon as both the fields and query loads
     */
    loadQuery(): void;
    onCreateSection(): void;
    onCreateItem(): void;
    onOperatorChange(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PepQueryBuilderComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<PepQueryBuilderComponent, "pep-query-builder", never, { "query": "query"; "fields": "fields"; "variableFields": "variableFields"; "maxDepth": "maxDepth"; }, { "queryChange": "queryChange"; "formValidationChange": "formValidationChange"; }, never, never, false>;
}