import { InjectionToken } from '@angular/core';
import { NAuthClientConfig } from '@nauth-toolkit/client';
/**
 * reCAPTCHA configuration for Angular client.
 *
 * Extends base client RecaptchaConfig with Angular-specific options.
 *
 * @example v3 Automatic Mode
 * ```typescript
 * {
 *   enabled: true,
 *   version: 'v3',
 *   siteKey: '6LcExample_Site_Key',
 *   action: 'login',
 *   autoLoadScript: true,
 * }
 * ```
 *
 * @example v2 Manual Mode
 * ```typescript
 * {
 *   enabled: true,
 *   version: 'v2',
 *   siteKey: '6LcExample_Site_Key',
 *   manualChallenge: true,
 * }
 * ```
 */
export interface RecaptchaAngularConfig {
    /**
     * Enable/disable reCAPTCHA.
     * Set to false to disable even if configured (useful for testing).
     */
    enabled: boolean;
    /**
     * reCAPTCHA version: v2 (checkbox), v3 (invisible), or enterprise.
     */
    version: 'v2' | 'v3' | 'enterprise';
    /**
     * Site key from Google reCAPTCHA console.
     * This is safe to expose publicly (it's the public key).
     */
    siteKey: string;
    /**
     * Action name for v3/Enterprise analytics.
     * Helps track which actions are being protected.
     * Common values: 'login', 'signup', 'submit'
     *
     * @default 'submit'
     */
    action?: string;
    /**
     * Manual challenge mode (v2 only).
     * If true, you must manually call RecaptchaService.render() and get token.
     * If false, AuthService auto-generates token before login/signup.
     *
     * @default false
     */
    manualChallenge?: boolean;
    /**
     * Automatically load the Google reCAPTCHA script.
     * If false, you must manually load the script.
     *
     * @default true
     */
    autoLoadScript?: boolean;
    /**
     * Language code for reCAPTCHA widget (v2 only).
     * @example 'en', 'es', 'fr', 'de'
     * @default Browser language
     */
    language?: string;
}
/**
 * Angular-specific NAuth configuration.
 *
 * Extends base NAuthClientConfig with Angular-specific options.
 *
 * @example
 * ```typescript
 * const config: NAuthAngularConfig = {
 *   baseUrl: 'https://api.example.com/auth',
 *   tokenDelivery: 'cookies',
 *   recaptcha: {
 *     enabled: true,
 *     version: 'v3',
 *     siteKey: '6LcExample_Site_Key',
 *     action: 'login',
 *   },
 * };
 * ```
 */
export interface NAuthAngularConfig extends NAuthClientConfig {
    /**
     * Google reCAPTCHA configuration (optional).
     * Provides bot protection for login/signup endpoints.
     */
    recaptcha?: RecaptchaAngularConfig;
}
/**
 * Injection token for providing NAuthClientConfig in Angular apps.
 */
export declare const NAUTH_CLIENT_CONFIG: InjectionToken<NAuthClientConfig>;