import { ConfigService } from '../../config/services/config.service';
import { DeploymentMode } from '../displays.constants';
export declare class PermitJoinService {
    private readonly configService;
    private readonly logger;
    private permitJoinActive;
    private permitJoinExpiresAt;
    constructor(configService: ConfigService);
    private getConfig;
    activatePermitJoin(): void;
    isPermitJoinActive(): boolean;
    deactivatePermitJoin(): void;
    getRemainingTime(): number | null;
    getExpiresAt(): Date | null;
    getDeploymentMode(): DeploymentMode;
}