/*!
 * Copyright (c) 2021-present, Okta, Inc. and/or its affiliates. All rights reserved.
 * The Okta software accompanied by this notice is provided pursuant to the Apache License, Version 2.0 (the "License.")
 *
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *
 * See the License for the specific language governing permissions and limitations under the License.
 */
import * as constants from '../constants';
export declare class EventEmitter {
    on(event: string, callback: (...args: any[]) => any, ctx?: any): EventEmitter;
    once(event: string, callback: (...args: any[]) => any, ctx?: any): EventEmitter;
    emit(event: string, ...args: any[]): EventEmitter;
    off(event: string, callback?: (...args: any[]) => any): EventEmitter;
}
export interface FeaturesAPI {
    isLocalhost(): boolean;
    isHTTPS(): boolean;
    isPopupPostMessageSupported(): boolean;
    hasTextEncoder(): boolean;
    isTokenVerifySupported(): boolean;
    isPKCESupported(): boolean;
    isIE11OrLess(): boolean;
    isDPoPSupported(): boolean;
    isIOS(): boolean;
}
export interface FingerprintOptions {
    timeout?: number;
    container?: Element | null;
}
export declare type FingerprintAPI = (options?: FingerprintOptions) => Promise<string>;
export interface OktaAuthBaseOptions {
    devMode?: boolean;
}
export interface OktaAuthOptionsConstructor<O extends OktaAuthBaseOptions = OktaAuthBaseOptions> {
    new (args: any): O;
}
export interface OktaAuthBaseInterface<O extends OktaAuthBaseOptions = OktaAuthBaseOptions> {
    options: O;
    emitter: EventEmitter;
    features: FeaturesAPI;
}
export interface OktaAuthConstructor<I extends OktaAuthBaseInterface = OktaAuthBaseInterface> {
    new (...args: any[]): I;
    features: FeaturesAPI;
    constants: typeof constants;
}