import { Store } from "express-session";
import WebSocketStrategy, { Surreal } from "surrealdb";
export type SurrealDBStoreOptions = {
    /**
     * URL used to connect to SurrealDB
     * e.g. http://127.0.0.1:8000/rpc
     */
    url: string;
    /**
     * Table to use for storing the sessions
     * @default `user_sessions`
     */
    tableName: string;
    /**
     * Options for the initial SurrealDB connection
    */
    connectionOpts: Parameters<Surreal['connect']>[1];
    /**
    * Sign-in options
    */
    signinOpts: Parameters<WebSocketStrategy['signin']>[0];
    /**
     * Use options (Select namespace, database)
     * @optional
     */
    useOpts?: Parameters<WebSocketStrategy['use']>[0];
    /**
     * Optional surreal db instance override.
     */
    surreal?: Surreal;
};
export declare class SurrealDBStore extends Store {
    private readonly options;
    private db;
    private tableName;
    private lastConnectionAttempt;
    private hasConnected;
    private isConnected;
    constructor(options: SurrealDBStoreOptions);
    /**
     * Perform the initial connection to the database. This also sets the scope of our connection.
     */
    private _connect;
    /**
     * Reconnect to the database if our connection drops. This uses a connection
     * throttling technique to prevent connection storming.
     */
    private _reconnect;
    /**
     * Check the connection state and attempt to reconnect before continuing
     * This ensures that sessions shouldn't observe disruptions in edge cases
     * where the connection gets lost and we can't connect immediately.
     *
     * If there's 50 minutes between the drop and a new connection, the user won't
     * get an error screen and need to refresh their page.
     */
    private _checkConnectionAndReconnect;
    get(sessionId: string, cb: Function): void;
    set(sessionId: string, session: any, cb: Function): void;
    touch(sid: string, session: any, cb: Function): void;
    destroy(sessionId: string, cb: Function): void;
    length(cb: Function): void;
    all(cb: Function): void;
    clear(cb: Function): void;
}