import type { GraphNode, GraphEdge, ProjectGraph, SubGraph, GraphEdgeType } from "../types/graph.js";
import type { SymbolEntry, ImportEntry } from "../types/context.js";
export interface ExpandOptions {
    depth: number;
    edgeTypes?: GraphEdgeType[];
    direction: "upstream" | "downstream" | "both";
}
export interface IGraphEngine {
    build(symbols: SymbolEntry[], imports?: ImportEntry[]): Promise<ProjectGraph>;
    updateIncremental(changes: {
        path: string;
        type: "added" | "modified" | "deleted";
    }[]): Promise<void>;
    expand(seeds: string[], options: ExpandOptions): SubGraph;
    shortestPath(from: string, to: string): GraphNode[];
    getSubGraph(target: string, depth: number): SubGraph;
    export(): {
        nodes: GraphNode[];
        edges: GraphEdge[];
    };
}
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