import { PdfOptions } from './pdfoptions';
import Markugen, { MarkugenOptions } from './markugen';
import Generator from './generator';
export * from './pdfoptions';
/**
 * Generator for HTML to PDF file generation
 */
export default class PdfGenerator extends Generator {
    /**
     * The options to use in generate
     */
    readonly options: Required<PdfOptions>;
    /**
     * The list of files to convert
     */
    private readonly files;
    /**
     * Constructs a new generator
     * @param mark the instance of {@link Markugen}
     */
    constructor(mark: Markugen, options: PdfOptions & MarkugenOptions);
    /**
     * Generates the PDFs for the given {@link PdfOptions options}
     * @param options the {@link PdfOptions options} to use for generation
     * @returns a list of PDF files that were generated
     */
    generate(): Promise<string[]>;
    /**
     * Creates the pdf version of the file
     * @param file the path to the html file or the html string
     */
    private writePdf;
    /**
     * Validates the given options
     * @param options the {@link PdfOptions options} to validate
     * @returns an array of files to generate PDFs for
     */
    private validate;
    /**
     * Collects all html files found in the given directory
     * @param dir the directory to look in
     */
    private collect;
}