/**
 * Neo4j Graph Store
 *
 * Provides graph database operations using Neo4j:
 * - Nodes for code entities (files, classes, functions)
 * - Edges for relationships (imports, calls, extends)
 * - Cypher queries for traversal and path finding
 *
 * Requires Neo4j server running.
 * See docs/STORAGE.md for setup instructions.
 */
import { IGraphStore, GraphNode, GraphEdge } from '../interfaces';
export interface Neo4jGraphStoreConfig {
    uri: string;
    user: string;
    password: string;
    database?: string;
}
export declare class Neo4jGraphStore implements IGraphStore {
    private config;
    private driver;
    private database;
    private initialized;
    constructor(config: Neo4jGraphStoreConfig);
    /**
     * Initialize schema (create indexes)
     */
    initialize(): Promise<void>;
    upsertNode(node: GraphNode): Promise<void>;
    upsertEdge(edge: GraphEdge): Promise<void>;
    upsertNodes(nodes: GraphNode[]): Promise<void>;
    upsertEdges(edges: GraphEdge[]): Promise<void>;
    findNodes(projectId: string, type?: GraphNode['type']): Promise<GraphNode[]>;
    getNode(id: string): Promise<GraphNode | null>;
    getEdges(nodeId: string, direction?: 'in' | 'out' | 'both'): Promise<GraphEdge[]>;
    getNeighbors(nodeId: string, edgeType?: GraphEdge['type']): Promise<GraphNode[]>;
    findPath(sourceId: string, targetId: string, maxDepth?: number): Promise<GraphNode[]>;
    deleteByProject(projectId: string): Promise<number>;
    deleteByFilePaths(projectId: string, filePaths: string[]): Promise<number>;
    countNodes(projectId: string): Promise<number>;
    flush(): Promise<void>;
    close(): Promise<void>;
    /**
     * Test connection health
     */
    healthCheck(): Promise<boolean>;
    private recordToNode;
    private recordToEdge;
}
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