import type { FileRegistryEntry, DocumentArea } from '../types/index.js';
/**
 * File Registry - maintains a fast lookup of all documentation files
 */
export declare class FileRegistry {
    private registry;
    private loioIndex;
    private docsPath;
    private cacheFile;
    constructor(docsPath?: string);
    /**
     * Builds the file registry by scanning all documentation files
     */
    build(): Promise<void>;
    /**
     * Loads registry from cache if available and valid
     */
    private loadFromCache;
    /**
     * Saves registry to cache
     */
    private saveToCache;
    /**
     * Recursively scans a directory for markdown files
     */
    private scanDirectory;
    /**
     * Adds multiple files to the registry in parallel batches
     */
    private addFilesBatch;
    /**
     * Adds a file to the registry
     */
    private addFile;
    /**
     * Gets a file entry by path
     */
    getByPath(filePath: string): FileRegistryEntry | undefined;
    /**
     * Gets a file path by LOIO ID
     */
    getByLoioId(loioId: string): FileRegistryEntry | undefined;
    /**
     * Gets all files in a specific area
     */
    getByArea(area: DocumentArea): FileRegistryEntry[];
    /**
     * Gets all files
     */
    getAllFiles(): FileRegistryEntry[];
    /**
     * Searches files by title (case-insensitive partial match)
     */
    searchByTitle(query: string): FileRegistryEntry[];
    /**
     * Gets the total number of files in the registry
     */
    size(): number;
}
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