import { EJSON } from 'bson';
/**
 * Provides functionality for manipulating files and directories.
 */
export declare class FileSystem {
    static FILE_NAME_SPLIT_CHARACTER: string;
    /**
     * Lists file names for a given path.
     *
     * @param path File path
     */
    listFileNames(path: string): string[];
    /**
     * Lists directories which are not empty or hidden.
     *
     * @param path File path
     */
    listValidDirectories(path: string): string[];
    /**
     * Checks if a directory is empty.
     *
     * @param path File path
     */
    isEmpty(path: string): boolean;
    /**
     * Checks if a file or directory is empty.
     *
     * @param fileOrDirectoryName File or directory name
     */
    isHidden(fileOrDirectoryName: string): boolean;
    /**
     * Checks if a path is a directory.
     *
     * @param path File path
     */
    isDirectory(path: string): boolean;
    /**
     * Filters files which are supported for database seeding.
     *
     * @param fileNames Array of file names
     * @param supportedExtensions Supported file extensions array
     */
    filterSupportedDocumentFileNames(fileNames: string[], supportedExtensions: string[]): string[];
    /**
     * Checks if a file should be ignored based on extension.
     *
     * @param fileNameSplitByDot Array, which comes from file name split by dot
     */
    shouldIgnoreFile(fileNameSplitByDot: string[]): boolean;
    /**
     * Reads content for multiple files.
     *
     * @param paths Array of paths
     */
    readFilesContent(paths: string[], ejsonParseOptions: EJSON.Options): any[];
    /**
     * Reads a file from path. If it is a JSON, uses EJSON parser.
     *
     * @param path File path
     */
    readFile(path: string, ejsonParseOptions: EJSON.Options): any;
}
/**
 * Default `FileSystem` instance
 */
export declare const fileSystem: FileSystem;