import type { SemanticLayoutGraph } from '../vein/SemanticLayoutGraph.js';
import type { InferenceResult, TruncationInfo } from '../vein/types.js';
import type { SerializedGraph } from '../../domain/types/serialized-graph.js';
export declare class GraphSerializer {
    /**
     * Serialize a SemanticLayoutGraph and its InferenceResult into
     * a JSON-compatible SerializedGraph.
     *
     * @param filePath - Absolute path to the analyzed file
     * @param graph - The Semantic Layout Graph
     * @param inference - The inference results
     * @param truncation - Optional truncation info
     * @returns A serialized graph ready for JSON.stringify
     */
    serialize(filePath: string, graph: SemanticLayoutGraph, inference: InferenceResult, truncation?: TruncationInfo): SerializedGraph;
    /**
     * Build metadata for the snapshot.
     */
    private buildMetadata;
    /**
     * Get the current git commit hash.
     * Falls back to "unknown" if git is not available or not a git repo.
     */
    private getCommitHash;
    /**
     * Serialize all nodes into a flat map (keyed by node ID).
     * Children arrays are emptied to avoid circular references;
     * parent-child relationships are in the edges array.
     */
    private serializeNodes;
    /**
     * Serialize a single LayoutNode to a SerializedNode.
     */
    private serializeNode;
    /**
     * Serialize spacing tokens.
     */
    private serializeSpacing;
    /**
     * Serialize layout properties.
     */
    private serializeLayout;
    /**
     * Serialize token deviations.
     */
    private serializeTokenDeviations;
    /**
     * Build the explicit edge list from parent-child relationships.
     */
    private serializeEdges;
    /**
     * Build the aggregated details from the graph and inference result.
     */
    private buildDetails;
    /**
     * Compute the complexity grade from a health score.
     */
    private computeGrade;
}
/**
 * Default directory for storing layout graph snapshots.
 * Created at the project root.
 */
export declare const DEFAULT_SNAPSHOT_DIR = ".rhizome";
/**
 * Derive a snapshot filename from a file path.
 * E.g., "src/screens/DashboardScreen.tsx" → "dashboard-screen.json"
 */
export declare function deriveSnapshotName(filePath: string): string;
/**
 * Resolve the full path for a snapshot file.
 * If snapshotName is provided, uses it; otherwise derives from filePath.
 */
export declare function resolveSnapshotPath(filePath: string, snapshotName?: string): string;
/**
 * Ensure the .rhizome directory exists.
 */
export declare function ensureSnapshotDir(): void;
/**
 * Write a serialized graph to a JSON file.
 */
export declare function writeSnapshot(snapshot: SerializedGraph, outputPath: string): void;
/**
 * Read a serialized graph from a JSON file.
 */
export declare function readSnapshot(filePath: string): SerializedGraph;
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