/**
 * Session Manager
 *
 * Manages multiple parallel browser sessions for NotebookLM API
 *
 * Features:
 * - Session lifecycle management
 * - Auto-cleanup of inactive sessions
 * - Resource limits (max concurrent sessions)
 * - Shared PERSISTENT browser fingerprint (ONE context for all sessions)
 *
 * Based on the Python implementation from session_manager.py
 */
import type { AuthManager } from "../auth/auth-manager.js";
import { BrowserSession } from "./browser-session.js";
import type { SessionInfo } from "../types.js";
export declare class SessionManager {
    private authManager;
    private sharedContextManager;
    private sessions;
    private maxSessions;
    private sessionTimeout;
    private cleanupInterval?;
    constructor(authManager: AuthManager);
    /**
     * Generate a unique session ID
     */
    private generateSessionId;
    /**
     * Get existing session or create a new one
     *
     * @param sessionId Optional session ID to reuse existing session
     * @param notebookUrl Notebook URL for the session
     * @param overrideHeadless Optional override for headless mode (true = show browser)
     */
    getOrCreateSession(sessionId?: string, notebookUrl?: string, overrideHeadless?: boolean): Promise<BrowserSession>;
    /**
     * Get an existing session by ID
     */
    getSession(sessionId: string): BrowserSession | null;
    /**
     * Close and remove a specific session
     */
    closeSession(sessionId: string): Promise<boolean>;
    /**
     * Close all sessions that are using the provided notebook URL
     */
    closeSessionsForNotebook(url: string): Promise<number>;
    /**
     * Clean up all inactive sessions
     */
    cleanupInactiveSessions(): Promise<number>;
    /**
     * Clean up the oldest session to make space
     */
    private cleanupOldestSession;
    /**
     * Close all sessions (used during shutdown)
     */
    closeAllSessions(): Promise<void>;
    /**
     * Get all sessions info
     */
    getAllSessionsInfo(): SessionInfo[];
    /**
     * Get aggregate stats
     */
    getStats(): {
        active_sessions: number;
        max_sessions: number;
        session_timeout: number;
        oldest_session_seconds: number;
        total_messages: number;
    };
}
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