/**
 * Session Management
 *
 * Manages client sessions with document state,
 * pending operations, and undo/redo stacks.
 */
import type { SessionData, ClientIdentity } from '../types.js';
/**
 * Session configuration
 */
export interface SessionConfig {
    /** Session timeout in milliseconds */
    timeoutMs: number;
    /** Maximum sessions allowed */
    maxSessions: number;
    /** Cleanup interval in milliseconds */
    cleanupIntervalMs: number;
    /** Whether to enforce client identity binding */
    enforceClientBinding: boolean;
}
/**
 * Default session configuration
 */
export declare const DEFAULT_SESSION_CONFIG: SessionConfig;
/**
 * Session access result
 */
export interface SessionAccessResult {
    session?: SessionData;
    error?: string;
}
/**
 * Session manager for MCP connections
 */
export declare class SessionManager {
    private sessions;
    private config;
    private cleanupTimer?;
    constructor(config?: Partial<SessionConfig>);
    /**
     * Create a new session
     */
    create(clientIdentity?: ClientIdentity): SessionData;
    /**
     * Get session by ID
     */
    get(id: string): SessionData | undefined;
    /**
     * Get session with client identity validation
     * Returns an error if client identity doesn't match
     */
    getWithValidation(id: string, clientIdentity?: ClientIdentity): SessionAccessResult;
    /**
     * Update session activity timestamp
     */
    touch(id: string): void;
    /**
     * Delete a session
     */
    delete(id: string): boolean;
    /**
     * Get all active sessions
     */
    list(): SessionData[];
    /**
     * Get session count
     */
    get count(): number;
    /**
     * Start periodic cleanup of expired sessions
     */
    private startCleanup;
    /**
     * Stop cleanup timer
     */
    stop(): void;
    /**
     * Remove expired sessions
     */
    private cleanupExpired;
    /**
     * Evict oldest session when at capacity
     */
    private evictOldest;
}
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