import { KnoraApiConfig, KnoraApiConnection } from '@knora/api';
/**
 * Currently logged-in user information
 */
export interface CurrentUser {
    name: string;
    jwt: string;
    lang: string;
    sysAdmin: boolean;
    projectAdmin: string[];
}
/**
 * Session with id (= login timestamp) and inforamtion about logged-in user
 */
export interface Session {
    id: number;
    user: CurrentUser;
}
export declare class SessionService {
    private knoraApiConnection;
    private knoraApiConfig;
    /**
    * max session time in milliseconds
    * default value (24h): 86400000
    *
    */
    readonly MAX_SESSION_TIME: number;
    constructor(knoraApiConnection: KnoraApiConnection, knoraApiConfig: KnoraApiConfig);
    /**
       * set the session by using the json web token (jwt) and the user object;
       * it will be used in the login process
       *
       * @param jwt
       * @param username
       */
    setSession(jwt: string, identifier: string, identifierType: 'email' | 'username'): void;
    /**
     * Validate intern session and check knora api credentials if necessary.
     * If a json web token exists, it doesn't mean, that the knora api credentials are still valid.
     *
     * @returns boolean
     */
    validateSession(): boolean;
    /**
     * update the session storage
     * @param jwt
     * @param username
     *
     * @returns boolean
     */
    updateSession(jwt: string, username: string): boolean;
    /**
     * Destroy session by removing the session from local storage
     *
     */
    destroySession(): void;
    /**
     * Update the knora-api-config and knora-api-connection of @knora/api
     *
     * @param  {string} jwt?
     */
    private updateKnoraApiConnection;
    /**
     * Convert a timestamp in a number
     * @returns number
     */
    private setTimestamp;
}