/**
 * Reference Data Loader
 *
 * Loads reference vocabulary lists, core lists, and sentences
 * for AAC metrics analysis.
 */
import { CoreList, CommonWordsData, SynonymsData } from '../metrics/types';
import { FileAdapter } from '../../../utils/io';
export interface ReferenceDataProvider {
    loadCoreLists(): Promise<CoreList[]>;
    loadCommonWords(): Promise<CommonWordsData>;
    loadSynonyms(): Promise<SynonymsData>;
    loadSentences(): Promise<string[][]>;
    loadFringe(): Promise<string[]>;
    loadBaseWords(): Promise<{
        [word: string]: boolean;
    }>;
    loadCommonFringe(): Promise<string[]>;
    loadAll(): Promise<{
        coreLists: CoreList[];
        commonWords: CommonWordsData;
        synonyms: SynonymsData;
        sentences: string[][];
        fringe: string[];
        baseWords: {
            [word: string]: boolean;
        };
    }>;
}
export declare class ReferenceLoader {
    private dataDir;
    private locale;
    private fileAdapter;
    constructor(dataDir?: string, locale?: string, fileAdapter?: FileAdapter);
    /**
     * Load core vocabulary lists
     */
    loadCoreLists(): Promise<CoreList[]>;
    /**
     * Load common words with baseline effort scores
     */
    loadCommonWords(): Promise<CommonWordsData>;
    /**
     * Load synonym mappings
     */
    loadSynonyms(): Promise<SynonymsData>;
    /**
     * Load test sentences
     */
    loadSentences(): Promise<string[][]>;
    /**
     * Load fringe vocabulary
     */
    loadFringe(): Promise<string[]>;
    /**
     * Load base words hash map
     */
    loadBaseWords(): Promise<{
        [word: string]: boolean;
    }>;
    /**
     * Load common fringe vocabulary
     * Common words that are NOT in core vocabulary lists
     * (matching Ruby loader.rb:413-420)
     */
    loadCommonFringe(): Promise<string[]>;
    /**
     * Get all reference data at once
     */
    loadAll(): Promise<{
        coreLists: CoreList[];
        commonWords: CommonWordsData;
        synonyms: SynonymsData;
        sentences: string[][];
        fringe: string[];
        baseWords: {
            [word: string]: boolean;
        };
    }>;
}
/**
 * Get the default reference data path
 */
export declare function getReferenceDataPath(fileAdapter?: FileAdapter): string;
/**
 * Check if reference data files exist
 */
export declare function hasReferenceData(fileAdapter?: FileAdapter): Promise<boolean>;