/**
 * Dependency Graph Builder
 *
 * Builds and manages the dependency graph for code analysis
 */
import type { DependencyGraph, DependencyNode, ImportReference, ExportReference } from "../../types/change-impact.js";
export declare class DependencyGraphBuilder {
    private projectRoot;
    private graph;
    private readonly CACHE_DURATION;
    constructor(projectRoot: string);
    /**
     * Get the current graph (may be null if not built)
     */
    getGraph(): DependencyGraph | null;
    /**
     * Build or refresh the dependency graph
     */
    buildGraph(forceRebuild?: boolean): Promise<DependencyGraph>;
    /**
     * Parse a file to extract imports and exports
     */
    parseFile(file: string): Promise<DependencyNode | null>;
    /**
     * Parse import statements from file content
     */
    parseImports(content: string): ImportReference[];
    /**
     * Parse export statements from file content
     */
    parseExports(content: string): ExportReference[];
    /**
     * Find all TypeScript/JavaScript source files
     */
    private findSourceFiles;
    /**
     * Resolve import path relative to importing file
     */
    resolveImportPath(importerFile: string, importPath: string): string;
    /**
     * Normalize file path to be relative to project root
     */
    normalizePath(file: string): string;
    /**
     * Get graph statistics
     */
    getGraphStats(): {
        fileCount: number;
        totalImports: number;
        totalExports: number;
        lastBuilt: Date | null;
    };
}
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