export interface NarvikConfiguration {
    data: NarvikDataConfiguration;
    session?: NarvikSessionConfiguration;
    cookie?: NarvikCookieConfiguration;
}
export interface NarvikDataConfiguration {
    saveSession: (session: Session) => Promise<void>;
    fetchSession: (sessionId: string) => Promise<Session | null>;
    updateSessionExpiry: (sessionId: string, updateExpiresAt: Date) => Promise<void>;
    deleteSession: (sessionId: string) => Promise<void>;
    fetchSessionsForUser?: (userId: string) => Promise<Session[]>;
    deleteSessionsForUser?: (userId: string) => Promise<void>;
    deleteAllExpiredSessions?: () => Promise<void>;
}
export interface NarvikSessionConfiguration {
    sessionExpiresInMs?: number;
}
export interface NarvikCookieConfiguration {
    name?: string;
    cookieExpiresInMs?: number;
    attributes?: NarvikCookieAttributesConfiguration;
}
export interface NarvikCookieAttributesConfiguration {
    secure?: boolean;
    domain?: string;
    path?: string;
    sameSite?: "lax" | "strict" | "none";
}
export interface AdditionalSessionData {
}
export interface Session extends AdditionalSessionData {
    id: string;
    userId: string;
    expiresAt: Date;
    new?: boolean;
    extended?: boolean;
}
export declare class Cookie {
    name: string;
    value: string;
    attributes: CookieAttributes;
    constructor(name: string, value: string, attributes: CookieAttributes);
    serialize(): string;
}
export interface CookieAttributes {
    httpOnly?: boolean;
    secure?: boolean;
    domain?: string;
    path?: string;
    sameSite?: "none" | "lax" | "strict";
    maxAge?: number;
}
export interface CreateSessionResult {
    token: string;
    session: Session;
}
export declare class Narvik {
    private data;
    private readonly sessionExpiresInMs;
    private readonly cookieExpiresInMs;
    readonly cookieName: string;
    private readonly coreCookieAttributes;
    constructor(config: NarvikConfiguration);
    createSession(userId: string, additionalData?: AdditionalSessionData): Promise<CreateSessionResult>;
    validateSession(token: string): Promise<Session | null>;
    invalidateSession(sessionId: string): Promise<void>;
    fetchSessionsForUser(userId: string): Promise<Session[]>;
    deleteSessionsForUser(userId: string): Promise<void>;
    deleteAllExpiredSessions(): Promise<void>;
    createCookie(sessionToken: string): Cookie;
    createBlankCookie(): Cookie;
}