import { TemplateRef } from '@angular/core';
import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
export declare class NotificationService {
    private readonly _colorService;
    /**
     *  Sets the order in which notifications are displayed:
        `above` - newer notifications will appear above older ones.
        `below` - newer notifications will appear below older ones.
     */
    direction: NotificationListDirection;
    /**
     * The list of notifications including notifications that have been dismissed
     */
    notifications$: BehaviorSubject<NotificationRef[]>;
    /**
     * Access the list of notifications as an array
     */
    get notifications(): NotificationRef[];
    /**
     * Define the default set of notification options
     */
    options: NotificationOptions;
    /**
     * This function should be called to show a notification.
     * It should be given a TemplateRef containing the content to be displayed.
     * @param templateRef - A TemplateRef containing the content to be displayed
     * @param options - The properties to configure the notification.
     * @param context - The context passed to the notification TemplateRef. This can be accessed by adding a let-data="data" to the ng-template element.
     */
    show(templateRef: TemplateRef<void>, options?: NotificationOptions, context?: {
        [key: string]: unknown;
    }): NotificationRef;
    /**
     * This function will return a list of all the notifications that have been shown.
     */
    getHistory(): NotificationRef[];
    /**
     * This function can be called to dismiss a notification. It should be passed the object to dismiss.
     * @param notificationRef - The notification that should be dismissed
     */
    dismiss(notificationRef: NotificationRef): void;
    /**
     * This function will dismiss any currently visible notifications.
     */
    dismissAll(): void;
    /** Remove the notification from the screen and from the notification history */
    remove(notificationRef: NotificationRef): void;
    /** Remove all notifications from the screen and from the notification history */
    removeAll(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NotificationService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NotificationService>;
}
export interface NotificationRef extends NotificationOptions {
    /** The content to display in the notification */
    templateRef: TemplateRef<void>;
    /** The datestamp to display in the notification */
    date: Date;
    /** Indicated whether or not the notification has been dismissed or not */
    visible?: boolean;
    /** Additional data passed as template context to the notification */
    data: {
        [key: string]: unknown;
    };
}
export interface NotificationOptions {
    /** The duration the notification should display for before it is automatically dismissed */
    duration: number;
    /** The height of the notification */
    height?: number;
    /** The spacing between each notification */
    spacing?: number;
    /** The background color of the notification */
    backgroundColor?: string;
    /** The color of the notification icon */
    iconColor?: string;
}
export type NotificationListDirection = 'above' | 'below';