import type { GraphEdge, GraphNode, SymbolLang } from './schema.js';
/**
 * Derive a monorepo package name from an absolute file path.
 * Handles both `packages/<name>/...` and `apps/<name>/...` layouts.
 *
 * This is the fallback only. The authoritative grouping is computed at index
 * time from each ecosystem's own manifests and stored on `files.package` —
 * see {@link createPackageLabeller}. A path-shape guess is all that is left
 * for a repo with no manifest at all.
 */
export declare function derivePackage(filePath: string): string | undefined;
/**
 * Build the `file → package` lookup the graph readers group by.
 *
 * `stored` comes from `files.package`, which the indexer filled from `go.mod`,
 * `Cargo.toml`, `package.json`, `pom.xml` and friends. Files missing a stored
 * label (indexed by an older run, or outside any manifest) fall back to the
 * path-shape heuristic and finally to `(root)`.
 */
export declare function createPackageLabeller(stored: ReadonlyMap<string, string>): (file: string) => string;
export declare function buildPackageGraphNodes(fileCounts: Array<{
    file: string;
    n: number;
}>, files: Array<{
    file: string;
}>, packageOf: (file: string) => string): {
    pkgNodes: Map<string, GraphNode>;
    fileToPkg: Map<string, string>;
};
export type WriterFileGraphSymbolRow = {
    file: string;
    id: number;
    name: string;
    kind: string;
    lang: string;
    line: number;
};
export declare function buildFileGraphNodeState(pkgSyms: WriterFileGraphSymbolRow[], localFiles: Set<string>, packageOf: (file: string) => string): {
    fileNodes: Map<string, GraphNode>;
    symToFile: Map<number, string>;
    fileStats: Map<string, {
        count: number;
        lang: SymbolLang;
    }>;
    ensureFileNode: (file: string) => void;
};
export type WriterSymbolGraphRow = {
    id: number;
    name: string;
    kind: string;
    lang: string;
    file: string;
    line: number;
    signature: string;
    scope: string;
};
export declare function buildSymbolGraphNodes(symById: Map<number, WriterSymbolGraphRow>, relatedIds: Set<number>, localFiles: ReadonlySet<string> | string, packageOf: (file: string) => string): GraphNode[];
export type WeightedEdgeAccumulator = {
    weight: number;
    types: Map<string, number>;
};
export declare function addWeightedEdge(edgeMap: Map<string, WeightedEdgeAccumulator>, source: string | number, target: string | number, callType: string, weight: number): void;
export declare function materializeWeightedEdges(edgeMap: Map<string, WeightedEdgeAccumulator>, idPrefix: 'pkg' | 'file' | 'sym'): GraphEdge[];
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