import { ApplicationLoggerService } from "@neoma/logging";
import { NestMiddleware } from "@nestjs/common";
import { Request, NextFunction } from "express";
import { GarmrOptions } from "../garmr.options";
import { AuthenticationService } from "../services/authentication.service";
/**
 * Middleware that attempts to authenticate the request using the
 * garmr.sid cookie (or a custom cookie name from options).
 *
 * If req.principal is already set (by a previous middleware), this
 * middleware skips authentication and calls next.
 *
 * If no cookie header is present or there is no matching cookie,
 * the request proceeds unauthenticated without error.
 *
 * If the cookie is present but authentication fails, no principal
 * is assigned and the request proceeds unauthenticated with a
 * warning logged.
 */
export declare class CookieAuthenticationMiddleware implements NestMiddleware {
    private readonly service;
    private readonly logger;
    private readonly cookieName;
    constructor(service: AuthenticationService, logger: ApplicationLoggerService, options: GarmrOptions);
    use(req: Request, _res: Express.Response, next: NextFunction): Promise<void>;
}