import { AuthOptions } from "./types.js";
import { defaults } from "./parts/defaults.js";
import { Login } from "../trust/exports/app.js";
/**
 * Authlocal's page-level auth control center.
 *  - there should only be one instance on the page, shared across any authlocal elements.
 *  - provides the `login` state
 *  - handles persistence of the login session into storage
 *  - coordinates and communicates with the Authlocal popup
 */
export declare class Auth {
    #private;
    static version: number;
    static defaults: typeof defaults;
    /** The url that the login popups should use (defaults to "https://authlocal.org/") */
    src: string;
    /**
     * Subscribe to changes in the login state.
     *  - if the login is `null`, it means the user has logged out.
     *  - usage:
     *    auth.on(login => console.log(login))
     */
    on: import("@e280/stz").Sub<[Login | null]>;
    constructor(options?: Partial<AuthOptions>);
    /** Load and update the login state from storage */
    loadLogin(): Promise<Login | null>;
    /** Set the login state manually, saving it to storage */
    saveLogin(login: Login | null): Promise<Login | null>;
    /** Shortcut for `saveLogin(null)` */
    logout(): Promise<Login | null>;
    /** The current login state, either a `Login` object, or null if logged out */
    get login(): Login | null;
    /**
     * Spawn a login popup, requesting for the user to login.
     *   `src`:
     *     this is the url to open (defaults to "https://authlocal.org/")
     */
    popup(src?: string): Promise<Login | null>;
}