/**
 * storytellingjs - Session Manager
 *
 * Parity with Python storytelling/session_manager.py
 * Provides session persistence and resume capabilities.
 */
import type { SessionInfo, SessionCheckpoint, SessionStatus, WorkflowNode } from './types.js';
/**
 * Manages story generation sessions with checkpoint and resume capabilities.
 */
export declare class SessionManager {
    readonly baseLogsDir: string;
    constructor(baseLogsDir?: string);
    /**
     * Create a new generation session.
     */
    createSession(options: {
        promptFile: string;
        outputFile: string;
        config: Record<string, unknown>;
    }): string;
    /**
     * Save a checkpoint during generation.
     */
    saveCheckpoint(sessionId: string, nodeName: WorkflowNode, state: Record<string, unknown>, metadata?: Record<string, unknown>): void;
    /**
     * Load session state from latest or specific checkpoint.
     */
    loadSessionState(sessionId: string, checkpointId?: string): Record<string, unknown>;
    /**
     * List all available sessions.
     */
    listSessions(): SessionInfo[];
    /**
     * List checkpoints for a session.
     */
    listCheckpoints(sessionId: string): SessionCheckpoint[];
    /**
     * Load session information.
     */
    loadSessionInfo(sessionId: string): SessionInfo;
    /**
     * Update session status.
     */
    updateSessionStatus(sessionId: string, status: SessionStatus, metadata?: Record<string, unknown>): void;
    /**
     * Check if session can be resumed from a specific node.
     */
    canResumeFromNode(sessionId: string, nodeName: WorkflowNode): boolean;
    /**
     * Determine the best entry point for resuming generation.
     */
    getResumeEntryPoint(sessionId: string): WorkflowNode;
    private generateSessionId;
    private saveSessionInfo;
    private loadSessionInfoFromFile;
    private sanitizeState;
    private ensureDir;
}
/**
 * Migrate an existing session directory to new format.
 */
export declare function migrateExistingSession(logsDir: string, sessionId: string): SessionInfo;
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