import { TestFailure, TestCaseDetails, TestSummary } from '../types';
/**
 * Handles writing test results to JSON files
 */
export declare class FileHandler {
    private readonly failuresFilePath;
    private readonly summaryFilePath;
    private failuresBuffer;
    private writeInterval;
    private isBufferDirty;
    /**
     * Creates a new FileHandler instance
     * @param outputDir - Directory where JSON files will be saved
     */
    constructor(outputDir?: string);
    /**
     * Adds a test failure to the failures file
     * @param failure - The test failure to add
     */
    addFailure(failure: TestFailure): void;
    /**
     * Writes test summary and all test cases to files
     * @param summary - Test run summary
     * @param allTestCases - All test cases from the run
     */
    writeSummary(summary: TestSummary, allTestCases: TestCaseDetails[]): void;
    /**
     * Starts the periodic buffer flush
     * @private
     */
    private startPeriodicFlush;
    /**
     * Stops the periodic buffer flush
     * @private
     */
    private stopPeriodicFlush;
    /**
     * Flushes the failures buffer to disk
     * @private
     */
    private flushFailuresBuffer;
}