import { OnInit, EventEmitter, OnChanges, SimpleChanges } from '@angular/core';
import { FormControl, FormBuilder, FormGroup } from '@angular/forms';
import { TranslateService } from '@ngx-translate/core';
import { Observable, Subject } from 'rxjs';
import { CronValidationService } from '../../services/cronValidation.service';
import * as i0 from "@angular/core";
export declare class CronHelperComponent implements OnInit, OnChanges {
    private fb;
    private translate;
    private cronValidationService;
    initialCronExpression: string;
    userEdited: boolean;
    cronForm: FormGroup;
    nextOccurrences: string[];
    cronExpression: string;
    jobDescription: string;
    ngUnsubscribe: Subject<void>;
    presetControl: FormControl<any>;
    cronExpressionApplied: EventEmitter<string>;
    cronFormStatusChanged: EventEmitter<boolean>;
    triggerApplyInput: Observable<void>;
    cronPresets: {
        value: string;
        display: string;
        translateDisplay: boolean;
        disabled: boolean;
    }[];
    constructor(fb: FormBuilder, translate: TranslateService, cronValidationService: CronValidationService);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    private setInitialCron;
    get secondsControl(): FormControl;
    get minutesControl(): FormControl;
    get hoursControl(): FormControl;
    get dayOfMonthControl(): FormControl;
    get monthControl(): FormControl;
    get dayOfWeekControl(): FormControl;
    validateCronPart(field: string): (control: FormControl) => import("@angular/forms").ValidationErrors | null;
    private getFieldValue;
    getCronExpression(): string;
    getHumanReadableDescription(): string;
    applyCron(): void;
    updateNextOccurrences(): void;
    onPresetSelected(cron: string): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CronHelperComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<CronHelperComponent, "app-cron-helper", never, { "initialCronExpression": { "alias": "initialCronExpression"; "required": false; }; "triggerApplyInput": { "alias": "triggerApplyInput"; "required": false; }; }, { "cronExpressionApplied": "cronExpressionApplied"; "cronFormStatusChanged": "cronFormStatusChanged"; }, never, never, false, never>;
}