/**
 * Copyright Amazon.com, Inc. and its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"). You
 * may not use this file except in compliance with the License. A copy of
 * the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file 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.
 */
/**
 * Base error class for all FIDO2/WebAuthn related errors
 */
export declare class Fido2Error extends Error {
    readonly code: string;
    readonly cause?: unknown;
    /**
     * User-friendly message suitable for display to end users.
     * Uses passkey terminology and avoids technical jargon.
     */
    readonly userMessage: string;
    constructor(message: string, code: string, userMessage?: string, cause?: unknown);
}
/**
 * Thrown when WebAuthn operation is cancelled/aborted by user or application
 *
 * Example: User closes passkey dialog, component unmounts during authentication
 */
export declare class Fido2AbortError extends Fido2Error {
    constructor(message?: string, userMessage?: string);
}
/**
 * Thrown when credential operations fail
 *
 * Examples:
 * - No credential returned from browser
 * - Invalid credential format
 * - Credential not found
 */
export declare class Fido2CredentialError extends Fido2Error {
    constructor(message: string, cause?: unknown, userMessage?: string);
}
/**
 * Thrown when FIDO2 configuration is missing or invalid
 *
 * Examples:
 * - Missing fido2 config in configure()
 * - Invalid baseUrl or rpId
 */
export declare class Fido2ConfigError extends Fido2Error {
    constructor(message: string, userMessage?: string);
}
/**
 * Thrown when validation of FIDO2 options or responses fails
 *
 * Examples:
 * - Invalid challenge format
 * - Missing required fields in server response
 * - Type mismatch in credential response
 */
export declare class Fido2ValidationError extends Fido2Error {
    readonly invalidValue?: unknown;
    constructor(message: string, invalidValue?: unknown, userMessage?: string);
}
/**
 * Thrown when authentication/authorization fails
 *
 * Examples:
 * - No JWT token available
 * - Token expired
 * - Insufficient permissions
 */
export declare class Fido2AuthError extends Fido2Error {
    constructor(message: string, userMessage?: string);
}
/**
 * Thrown when server/network requests fail
 *
 * Examples:
 * - HTTP error responses
 * - Network timeout
 * - Server unreachable
 */
export declare class Fido2NetworkError extends Fido2Error {
    readonly statusCode?: number | undefined;
    readonly response?: unknown;
    constructor(message: string, statusCode?: number | undefined, response?: unknown, userMessage?: string);
}
/**
 * Type guard to check if error is a Fido2Error
 */
export declare function isFido2Error(error: unknown): error is Fido2Error;
/**
 * Type guard to check if error is an abort error
 */
export declare function isFido2AbortError(error: unknown): error is Fido2AbortError;
/**
 * Helper to convert DOMException (from WebAuthn API) to appropriate Fido2Error
 *
 * Based on WebAuthn Level 2 specification:
 * - navigator.credentials.create() can throw: AbortError, ConstraintError,
 *   InvalidStateError, NotSupportedError, SecurityError, NotAllowedError, UnknownError
 * - navigator.credentials.get() can throw: AbortError, InvalidStateError,
 *   SecurityError, NotAllowedError, UnknownError
 */
export declare function fromDOMException(error: DOMException): Fido2Error;