import { Indexer } from "./Indexer.js";
import { QueryBuilder } from "./QueryBuilder.js";
import { SourceConfig, SourceConfigResolver, SourceRecord } from "./SourceConfigResolver.js";
import { StorageRepository } from "./repository/StorageRepository.js";
import { Validator } from "./validator/Validator.js";
import { LoggerProvider } from "./logger/LoggerProvider.js";
import { ParserOptions } from "./parser/index.js";
/**
 * Initialization options for StaticQL.
 */
/**
 * Initialization options for StaticQL.
 */
export interface StaticQLInitOptions {
    /** Validator for content schema */
    validator?: Validator;
    /** Logger for debug/info/warning output */
    logger?: LoggerProvider;
    /**
     * Parsers registry to override or extend default parsers
     * (e.g. CSV, XML, custom formats).
     */
    parsers?: Record<string, (options: ParserOptions) => any>;
}
/**
 * Configuration for StaticQL.
 */
export interface StaticQLConfig {
    sources: Record<string, SourceConfig>;
}
/**
 * The core class for querying structured static content.
 */
export declare class StaticQL {
    private config;
    private repository;
    private sourceConfigResolver;
    private options;
    private validator;
    private logger;
    constructor(config: StaticQLConfig, repository: StorageRepository, sourceConfigResolver: SourceConfigResolver, options?: StaticQLInitOptions);
    /**
     * Creates a type-safe QueryBuilder for the specified source.
     *
     * @param sourceName - Name of the source.
     * @returns A new QueryBuilder instance.
     */
    from<T extends SourceRecord, TIndexKey extends string = keyof {}>(sourceName: string): QueryBuilder<T, TIndexKey>;
    /**
     * Saves index files for all sources
     * to the configured output directory.
     *
     * @param customIndexers - Optional custom indexer callbacks for _custom indexes.
     * @throws If writing to the storage fails.
     */
    saveIndexes(customIndexers?: Record<string, (value: any, record?: SourceRecord) => any>): Promise<void>;
    /**
     * Returns the configuration object used by StaticQL.
     */
    getConfig(): StaticQLConfig;
    /**
     * Returns an Indexer instance.
     * Useful for incremental index updates.
     */
    getIndexer(customIndexers?: Record<string, (value: any, record?: SourceRecord) => any>): Indexer;
}