import { NgZone } from '@angular/core';
import { MatSnackBar } from '@angular/material/snack-bar';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class SnackbarService {
    snackbar: MatSnackBar;
    private zone;
    private confirm$;
    private readonly sbConfig;
    private readonly DEF_DURATION;
    private duration;
    static getConfirmId(type: string): string;
    constructor(snackbar: MatSnackBar, zone: NgZone);
    /**
     * Shows a Material snackbar.
     *
     * @param message the message to show in the snackbar
     * @param action (optional) the message to show in the snackbar action button. When no action is provided, the button
     * will not show
     * @param append (optional, default true) specifies whether to append the new snackbar message to the previous one
     * if a previous snackbar is still active
     * @param duration (optional) set a one-time specific duration in milliseconds, just for this snackbar instance
     */
    message(message: string, action?: string, append?: boolean, duration?: number): void;
    /**
     * Shows a Material snackbar as an error (red background).
     *
     * @param message the message to show in the snackbar
     * @param action (optional) the message to show in the snackbar action button. When no action is provided, the button
     * will not show
     * @param append (optional, default true) specifies whether to append the new snackbar message to the previous one
     * if a previous snackbar is still active
     * @param duration (optional) set a one-time specific duration in milliseconds, just for this snackbar instance
     */
    error(message: string, action?: string, append?: boolean, duration?: number): void;
    private open;
    /**
     * Shows a Material snackbar which awaits confirmation.
     *
     * @param message the message to show in the snackbar
     * @param action the message to show in the snackbar action button. When no action is provided, the button
     * will show "Got it"
     * @param confirmId a unique identifier by which you can recognise the confirmation response
     * that you get when listening to "onNewConfirm". Use static method "SnackbarService.getConfirmId" to get a unique id.
     * @param duration (optional) set a one-time specific duration in milliseconds, just for this snackbar instance
     */
    confirm(message: string, action: string | undefined, confirmId: string, duration?: number): void;
    /**
     * Set the global duration for all snackbars
     *
     * @param ms duration in milliseconds
     */
    setDuration(ms: number): void;
    /**
     * Reset the global duration for all snackbars to default (6000)
     */
    resetDuration(): void;
    private newConfirm;
    onNewConfirm(): Observable<string>;
    close(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SnackbarService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SnackbarService>;
}