import { Driver, Session } from 'neo4j-driver';
/**
 * Neo4j connection management singleton
 * Responsible for creating and managing the Neo4j driver connection
 */
declare class Neo4jDriver {
    private static instance;
    private driver;
    private connectionPromise;
    private transactionCounter;
    private constructor();
    /**
     * Get the Neo4jDriver singleton instance
     */
    static getInstance(): Neo4jDriver;
    /**
     * Initialize the Neo4j driver connection
     * @returns Promise that resolves to the Neo4j driver
     */
    private initDriver;
    /**
     * Get the Neo4j driver instance, initializing it if necessary
     * @returns Promise that resolves to the Neo4j driver
     */
    getDriver(): Promise<Driver>;
    /**
     * Create a new Neo4j session
     * @param database Optional database name
     * @returns Promise that resolves to a new Neo4j session
     */
    getSession(database?: string): Promise<Session>;
    /**
     * Execute a query with a transaction
     * @param cypher Cypher query to execute
     * @param params Parameters for the query
     * @param database Optional database name
     * @returns Promise that resolves to the query result records
     */
    executeQuery<T = any>(cypher: string, params?: Record<string, any>, database?: string): Promise<T[]>;
    /**
     * Execute a read-only query
     * @param cypher Cypher query to execute
     * @param params Parameters for the query
     * @param database Optional database name
     * @returns Promise that resolves to the query result records
     */
    executeReadQuery<T = any>(cypher: string, params?: Record<string, any>, database?: string): Promise<T[]>;
    /**
     * Publish a database write operation event
     * @param operation Details about the operation
     * @private
     */
    private publishWriteOperation;
    /**
     * Triggers a database backup in the background, including rotation logic.
     * Logs errors but does not throw to avoid interrupting the main flow.
     * @private
     */
    private triggerBackgroundBackup;
    /**
     * Close the Neo4j driver connection
     */
    close(): Promise<void>;
}
export declare const neo4jDriver: Neo4jDriver;
export {};