import { AgentMessageType, GraphStorageInterface, ThreadStateType } from '../../../Types/AgentGraph/AgentGraphTypes';
/**
 * File-based implementation of GraphStorageInterface
 * Stores all data in JSON files on disk
 * Note: Data persists across process restarts
 */
export default class FileStorageService implements GraphStorageInterface {
    private basePath;
    /**
     * Create a new FileStorageService instance
     * @param basePath - Base directory for storing files
     */
    constructor(basePath: string);
    /**
     * Get file path for agent memory
     */
    private getAgentFilePath;
    /**
     * Get file path for shared memory
     */
    private getSharedFilePath;
    /**
     * Get file path for global memory
     * @param key - Memory key
     */
    private getGlobalFilePath;
    /**
     * Get file path for thread history
     */
    private getHistoryFilePath;
    /**
     * Get file path for thread state
     */
    private getStateFilePath;
    /**
     * Read JSON from file
     */
    private readJson;
    /**
     * Write JSON to file
     */
    private writeJson;
    /**
     * Get agent private memory by key
     * @param threadId - Thread identifier
     * @param agentId - Agent identifier
     * @param key - Memory key
     * @returns Promise resolving to stored value or null
     */
    getAgentMemory(threadId: string, agentId: string, key: string): Promise<any>;
    /**
     * Set agent private memory by key (replaces existing value)
     * @param threadId - Thread identifier
     * @param agentId - Agent identifier
     * @param key - Memory key
     * @param data - Data to store
     */
    setAgentMemory(threadId: string, agentId: string, key: string, data: any): Promise<void>;
    /**
     * Get shared thread memory by key
     * @param threadId - Thread identifier
     * @param key - Memory key
     * @returns Promise resolving to stored value or null
     */
    getSharedMemory(threadId: string, key: string): Promise<any>;
    /**
     * Set shared thread memory by key (replaces existing value)
     * @param threadId - Thread identifier
     * @param key - Memory key
     * @param data - Data to store
     */
    setSharedMemory(threadId: string, key: string, data: any): Promise<void>;
    /**
     * Get global memory by key (accessible by all threads)
     * @param key - Memory key
     * @returns Promise resolving to stored value or null
     */
    getGlobalMemory(key: string): Promise<any>;
    /**
     * Set global memory by key (replaces existing value)
     * @param key - Memory key
     * @param data - Data to store
     */
    setGlobalMemory(key: string, data: any): Promise<void>;
    /**
     * Get message history for a thread
     * @param threadId - Thread identifier
     * @returns Promise resolving to array of messages
     */
    getHistory(threadId: string): Promise<AgentMessageType[]>;
    /**
     * Add a message to thread history
     * @param threadId - Thread identifier
     * @param message - Message to add
     */
    addMessage(threadId: string, message: AgentMessageType): Promise<void>;
    /**
     * Get thread state
     * @param threadId - Thread identifier
     * @returns Promise resolving to thread state or null if not found
     */
    getThreadState(threadId: string): Promise<ThreadStateType | null>;
    /**
     * Set thread state
     * @param threadId - Thread identifier
     * @param state - State to set
     */
    setThreadState(threadId: string, state: ThreadStateType): Promise<void>;
}