import { ChatEntry } from "../agent/grok-agent.js";
export interface SessionState {
    session: string;
    persona: string;
    personaColor: string;
    mood: string;
    moodColor: string;
    activeTask: string;
    activeTaskAction: string;
    activeTaskColor: string;
    cwd: string;
    contextCurrent: number;
    contextMax: number;
}
/**
 * SQLite-based chat history manager with support for concurrent access
 */
export declare class ChatHistoryManager {
    private static instance;
    private static customHistoryPath;
    private dbPath;
    private db;
    private constructor();
    /**
     * Set a custom database path (must be called before getInstance)
     */
    static setCustomHistoryPath(filePath: string): void;
    static getInstance(): ChatHistoryManager;
    /**
     * Get the database file path
     */
    getContextFilePath(): string;
    private ensureHistoryDirExists;
    /**
     * Migrate from JSON files to SQLite if JSON files exist and DB is empty
     */
    private migrateFromJSONIfNeeded;
    /**
     * Load chat history from database
     */
    loadHistory(): ChatEntry[];
    /**
     * Add a single message to the database (atomic operation)
     */
    addMessage(entry: ChatEntry): void;
    /**
     * Save chat history to database (replaces entire history)
     * This maintains backward compatibility but is less efficient than addMessage
     */
    saveHistory(history: ChatEntry[]): void;
    /**
     * Save raw messages log (for backward compatibility)
     * In SQLite version, this is stored alongside the messages
     */
    saveMessages(messages: any[]): void;
    /**
     * Create a backup of the database
     */
    backupHistory(): string | null;
    /**
     * Clear all data from database with automatic backup
     */
    clearHistory(): void;
    /**
     * Save session state to database
     */
    saveSessionState(state: SessionState): void;
    /**
     * Load session state from database
     */
    loadSessionState(): SessionState | null;
    /**
     * Get the debug log file path
     */
    getDebugLogPath(): string;
    /**
     * Static method to get debug log path
     */
    static getDebugLogPath(): string;
    /**
     * Get messages in a specific range (for pagination)
     */
    getMessagesRange(offset: number, limit: number): ChatEntry[];
    /**
     * Get the total number of messages
     */
    getMessageCount(): number;
    /**
     * Export current database to JSON format (for debugging/backup)
     */
    exportToJSON(): string;
}