import { IGoogleAnalyticsSettings } from '../interfaces/i-google-analytics-settings';
import { GaActionEnum } from '../enums/ga-action.enum';
import { GtagFn } from '../types/gtag.type';
import * as i0 from "@angular/core";
export declare class GoogleAnalyticsService {
    private readonly settings;
    private readonly _document;
    private readonly _gtag;
    private get document();
    constructor(settings: IGoogleAnalyticsSettings, _document: any, _gtag: GtagFn);
    private throw;
    /** @todo Change this to `Object.fromEntity()` in the future... */
    private toKeyValue;
    /**
     * Call native GA Tag
     */
    gtag(...args: any[]): void;
    /**
     * Send an event trigger to GA. It is the same as call:
     * ```js
     * gtag('event', 'video_auto_play_start', {
     *   'event_label': 'My promotional video',
     *   'event_category': 'video_auto_play'
     * });
     * ```
     *
     * @param action 'video_auto_play_start'
     * @param category 'video_auto_play'
     * @param label 'My promotional video'
     * @param value An value to measure something
     * @param interaction If user interaction is performed
     */
    event(action: GaActionEnum | string, category?: string, label?: string, value?: number, interaction?: boolean, options?: Object): void;
    /**
     * Send an page view event. This is the same as
     *
     * ```js
     * gtag('config', 'GA_TRACKING_ID', {
     *   'page_title' : 'Homepage',
     *   'page_path': '/home'
     * });
     * ```
     *
     * The tracking ID is injected automatically by Inject Token NGX_GOOGLE_ANALYTICS_SETTINGS_TOKEN
     *
     * @param path /home
     * @param title Homepage
     * @param location '{ page_location }'
     * @param options '{ ... custom dimentions }'
     */
    pageView(path: string, title?: string, location?: string, options?: Object): void;
    /**
     * Send an event to report a App Page View. It is the same as
     *
     * ```js
     * gtag('event', 'screen_view', {
     *   'app_name': 'myAppName',
     *   'screen_name' : 'Home'
     * });
     *
     * ```
     *
     * @param screen 'screen_name'
     * @param appName 'app_name'
     * @param appId 'app_id'
     * @param appVersion 'app_version'
     * @param installerId 'app_installer_id'
     */
    appView(screen: string, appName: string, appId?: string, appVersion?: string, installerId?: string): void;
    /**
     * Defines persistent values on GoogleAnalytics
     *
     * @see https://developers.google.com/analytics/devguides/collection/gtagjs/setting-values
     *
     * ```js
     * gtag('set', {
     *   'currency': 'USD',
     *   'country': 'US'
     * });
     * ```
     */
    set(...options: Array<any>): void;
    /**
     * Send an event to GA to report an application error. It is the same as
     *
     * ```js
     * gtag('event', 'exception', {
     *   'description': 'error_description',
     *   'fatal': false   // set to true if the error is fatal
     * });
     * ```
     *
     * @param description 'error_description'
     * @param fatal set to true if the error is fatal
     */
    exception(description?: string, fatal?: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<GoogleAnalyticsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<GoogleAnalyticsService>;
}