import { AtomicTask } from '../types/task.js';
import { FileOperationResult } from '../utils/file-utils.js';
import { VibeTaskManagerConfig } from '../utils/config-loader.js';
export interface BatchConfig {
    batchSize: number;
    concurrentOperations: number;
    enableCompression: boolean;
    retryAttempts: number;
    retryDelay: number;
}
export interface FileIndexEntry {
    id: string;
    filePath: string;
    size: number;
    lastModified: Date;
    compressed: boolean;
    checksum?: string;
}
export interface BatchOperationResult<T> {
    success: boolean;
    results: T[];
    errors: Array<{
        id: string;
        error: string;
    }>;
    totalProcessed: number;
    duration: number;
    memoryUsage: number;
}
export interface LazyLoadConfig {
    enabled: boolean;
    pageSize: number;
    preloadPages: number;
    cacheSize: number;
}
export declare class TaskFileManager {
    private static instance;
    private config;
    private fileIndex;
    private loadedTasks;
    private lazyLoadCache;
    private memoryManager;
    private securityEngine;
    private indexFilePath;
    private dataDirectory;
    private constructor();
    private validateSecurePath;
    static getInstance(config?: VibeTaskManagerConfig['taskManager']['performance']['fileSystem'], dataDirectory?: string): TaskFileManager;
    initialize(): Promise<FileOperationResult<void>>;
    private loadFileIndex;
    private saveFileIndex;
    saveTask(task: AtomicTask): Promise<FileOperationResult<void>>;
    loadTask(taskId: string): Promise<FileOperationResult<AtomicTask>>;
    batchSaveTasks(tasks: AtomicTask[]): Promise<BatchOperationResult<void>>;
    private getTaskFilePath;
    private updateFileIndex;
    private performCleanup;
    getStatistics(): {
        indexedFiles: number;
        memoryCache: number;
        lazyLoadCache: number;
        totalFileSize: number;
        compressionRatio: number;
    };
    shutdown(): Promise<void>;
}
export declare function getTaskFileManager(): TaskFileManager | null;
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