import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
declare global {
    interface Window {
        onRecaptchaError?: () => void;
        onRecaptchaSuccess?: (token: string) => void;
        onRecaptchaExpired?: () => void;
        onRecaptchaLoaded?: () => void;
        grecaptcha?: any;
    }
}
export declare class ScReCaptchaService {
    private readonly zone;
    private readonly v3SiteKey;
    private readonly languageCode;
    private readonly scriptId;
    private readonly apiUrl;
    private readonly scriptStatus$;
    private scriptLoading;
    constructor();
    /**
     * Check if the script already exists in the document
     */
    private checkScriptExists;
    /**
     * Load the reCAPTCHA script dynamically
     * @param onload Optional callback function name for script load
     * @returns Observable that emits true when script is loaded
     */
    loadScript(onload?: string): Observable<boolean>;
    /**
     * Remove the reCAPTCHA script from the DOM
     */
    removeScript(): void;
    /**
     * Check if the script is loaded
     */
    isLoaded(): Observable<boolean | null>;
    /**
     * Reset all reCAPTCHA instances on the page
     */
    resetAll(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ScReCaptchaService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ScReCaptchaService>;
}