/**
 * JSON Data Index Module
 *
 * Provides JSON file search using:
 * - Literal indexing of dot-notation key paths (e.g., "package.dependencies.react")
 * - BM25 keyword matching for fuzzy search
 *
 * Note: This module uses literal-only indexing (no embeddings) for fast indexing.
 * JSON keys are indexed as dot-notation paths prefixed with the filename.
 *
 * Supported file types: .json
 *
 * Index location: .raggrep/index/data/json/
 */
import { IndexModule, IndexContext, SearchContext, SearchOptions, FileIndex, SearchResult, ModuleConfig } from "../../../types";
/** Default minimum similarity score for search results */
export declare const DEFAULT_MIN_SCORE = 0.1;
/** Default number of results to return */
export declare const DEFAULT_TOP_K = 10;
/** File extensions supported by this module */
export declare const JSON_EXTENSIONS: string[];
/**
 * Check if a file is supported by this module.
 */
export declare function isJsonFile(filepath: string): boolean;
export declare const supportsFile: typeof isJsonFile;
/**
 * Module-specific data stored alongside file index
 */
export interface JsonModuleData {
    /** Dot-notation paths extracted from the JSON file */
    jsonPaths: string[];
    [key: string]: unknown;
}
export declare class JsonModule implements IndexModule {
    readonly id = "data/json";
    readonly name = "JSON Search";
    readonly description = "JSON file search with literal-based key path indexing";
    readonly version = "2.0.0";
    supportsFile(filepath: string): boolean;
    private symbolicIndex;
    private literalIndex;
    private pendingSummaries;
    /** Map from chunkId → { filepath, literals } for building literal index */
    private pendingLiterals;
    private rootDir;
    private logger;
    initialize(config: ModuleConfig): Promise<void>;
    indexFile(filepath: string, content: string, ctx: IndexContext): Promise<FileIndex | null>;
    /**
     * Finalize indexing by building and saving the symbolic and literal indexes.
     * Uses incremental updates when possible to avoid full rebuilds.
     */
    finalize(ctx: IndexContext): Promise<void>;
    /**
     * Search the JSON index for files matching the query.
     *
     * Uses a two-source approach:
     * 1. Literal index for exact path matches (e.g., `package.dependencies.react`)
     * 2. BM25 keyword search for fuzzy matching
     *
     * @param query - Search query (supports backticks for exact literal matching)
     * @param ctx - Search context with index access
     * @param options - Search options (topK, minScore, filePatterns)
     * @returns Array of search results sorted by relevance
     */
    search(query: string, ctx: SearchContext, options?: SearchOptions): Promise<SearchResult[]>;
}