import { IFilePartItem } from '@guanghechen/filepart';

interface IFileSplitter {
    /**
     * File part code prefix.
     */
    readonly partCodePrefix: string;
    /**
     * Calculate the name of parts of sourcefile respectively.
     *
     * @param filepath
     * @param parts
     * @returns
     */
    calcPartFilepaths(filepath: string, parts: IFilePartItem[]): string[];
    /**
     * Split file with part descriptions.
     */
    split(filepath: string, parts: IFilePartItem[], outputFilepath?: string): Promise<string[]>;
    /**
     * Merge files
     *
     * @param inputFilepaths
     * @param outputFilepath
     */
    merge(inputFilepaths: string[], outputFilepath: string): Promise<void>;
}

interface IProps {
    /**
     * The suffix name of a file part.
     */
    readonly partCodePrefix?: string;
}
/**
 * Inspired by https://github.com/tomvlk/node-split-file.
 */
declare class FileSplitter implements IFileSplitter {
    #private;
    readonly partCodePrefix: string;
    constructor(options?: IProps);
    calcPartFilepaths(filepath: string, parts: IFilePartItem[]): string[];
    split(filepath: string, parts: IFilePartItem[], outputFilepath?: string): Promise<string[]>;
    merge(inputFilepaths: string[], outputFilepath: string): Promise<void>;
}
declare const fileSplitter: FileSplitter;

export { FileSplitter, fileSplitter };
export type { IFileSplitter };