import type { Ref } from 'vue';
import type { AuthInstance, AuthState } from '#auth-types';
/**
 * Handles user logout by clearing session data and redirecting.
 * @param strategy - The authentication strategy to log out from.
 * @param redirectPath - The path to redirect after logout.
 * @param middleware - The middleware type, defaults to "auth".
 * @throws An error if called on the server side.
 */
export declare const handleLogout: (strategy: string | null, redirectPath: string, middleware?: string) => Promise<any>;
/**
 * Validates an authentication session based on token and expiration time.
 * @param strategy - The authentication strategy in use.
 * @param token - The authentication token.
 * @param expires - Expiration timestamp of the token.
 * @returns `true` if the session is valid, otherwise `false`.
 */
export declare const validateSession: (strategy: string | null, token: string | null, expires: string | null) => boolean;
/**
 * Retrieves the appropriate redirect path based on the authentication strategy.
 * @param strategy - The authentication strategy in use.
 * @returns The redirect path for login, callback, or home, defaults to `/` if none is found.
 */
export declare const getRedirectPath: (strategy: string | null) => string;
/**
 * Validates that the auth plugin is initialized and returns the auth instance.
 * @throws An error if the auth plugin is not initialized.
 */
export declare const validateAuthPlugin: () => {
    $auth: any;
};
/**
 * Extracts authentication data from cookies on the server side.
 * @param $auth - The auth instance.
 * @param tokenSuffix - The token suffix (e.g., 'token', '2fa').
 * @returns Object containing strategy, token, and expiration.
 */
export declare const extractServerAuthData: ($auth: AuthInstance, tokenSuffix: string) => {
    strategy: any;
    token: any;
    expires: any;
};
/**
 * Extracts authentication data from localStorage on the client side.
 * @param $auth - The auth instance.
 * @param tokenSuffix - The token suffix (e.g., 'token', '2fa').
 * @returns Object containing strategy, token, and expiration.
 */
export declare const extractClientAuthData: ($auth: AuthInstance, tokenSuffix: string) => {
    strategy: string | null;
    token: string | null;
    expires: string | null;
};
/**
 * Validates user authentication state on the client side.
 * @param $auth - The auth instance.
 * @param store - The auth store instance.
 * @returns True if user is authenticated, false otherwise.
 */
export declare const validateUserAuthState: ($auth: AuthInstance, store: Ref<AuthState>) => boolean;
/**
 * Validates strategy consistency between auth and store.
 * @param $auth - The auth instance.
 * @param store - The auth store instance.
 * @param currentStrategy - The current strategy being validated.
 * @returns True if strategies are consistent, false otherwise.
 */
export declare const validateStrategyConsistency: ($auth: AuthInstance, store: Ref<AuthState>, currentStrategy: string) => boolean;