import { Logger } from 'homebridge';
import { SmartRentPlatformConfig } from './config';
/** Credentials stored in config.json */
declare type ConfigCredentials = Pick<SmartRentPlatformConfig, 'email' | 'password' | 'tfaCode'>;
/** Session stored in session.json */
export declare type Session = {
    userId: number;
    accessToken: string;
    refreshToken: string;
    expires: Date;
};
/**
 * SmartRent Auth client
 */
export declare class SmartRentAuthClient {
    isTfaSession: boolean;
    private session?;
    private storagePath;
    private pluginPath;
    private sessionPath;
    private readonly log;
    private readonly client;
    constructor(storagePath: string, log?: Logger);
    private static _isOauthSession;
    private static _isTfaSession;
    private static _getExpireDate;
    /**
     * Initialize Axios instance for SmartRent OAuth token requests
     * @returns Axios instance
     */
    private _initializeClient;
    /**
     * Log the SmartRent API response
     * @param response Axios response
     * @returns SmartRent response data payload
     */
    private _handleResponse;
    /**
     * Request a new session using either basic or 2FA credentials
     * @param credentials username/password or two-factor authentication credentials
     * @returns OAuth 2 session or two-factor authentication data
     */
    private _requestSession;
    /**
     * Read the session from session.json and store in this.session
     * @returns Session data
     */
    private _readStoredSession;
    /**
     * Format session data from SmartRent API and store to disk
     * @param data SmartRent session data
     * @param refreshed Whether the session was refreshed
     * @returns formatted session data
     */
    private _storeSession;
    /**
     * Start a new session
     * @param credentials email, password, and 2FA credentials
     * @returns OAuth2 session data
     */
    private _startSession;
    /**
     * Get a new session using the given username & password
     * @param credentials username & password credentials
     * @returns OAuth2 session data
     */
    private _startBasicSession;
    /**
     * Get a new session using the given 2FA credentials
     * @param credentials two-factor authentication credentials
     * @returns OAuth2 session data
     */
    private _startTfaSession;
    /**
     * Refresh a session
     * @returns OAuth2 session data
     */
    private _refreshSession;
    private _handleResponseError;
    /**
     * Get the current session if valid, a new session, or a refreshed session
     * @returns OAuth2 session data
     */
    private _getSession;
    /**
     * Get the stored access token or a refreshed token if it's expired
     * @returns OAuth2 access token
     */
    getAccessToken(credentials: ConfigCredentials): Promise<string | undefined>;
}
export {};
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