import { Request, Response, NextFunction } from "express";
import { ApiOptions } from "../../types/index.js";
export type User = {
    username: string;
    password: string;
    role?: string;
};
export type AuthToken = {
    token: string;
    user: Omit<User, "password">;
    expiresAt: number;
};
export declare class AuthService {
    private options;
    private tokens;
    private readonly SECRET_KEY;
    constructor(options: ApiOptions);
    authenticateUser(username: string, password: string): AuthToken | null;
    verifyToken(token: string): AuthToken | null;
    revokeToken(token: string): boolean;
    private generateToken;
}
export declare const createAuthMiddleware: (authService: AuthService, options: ApiOptions) => (req: Request, res: Response, next: NextFunction) => void;