import { z } from 'zod';
export interface FileOperationResult<T = unknown> {
    success: boolean;
    data?: T;
    error?: string;
    metadata?: {
        filePath: string;
        operation: string;
        timestamp: Date;
        size?: number;
        loadTime?: number;
        fromCache?: boolean;
    };
}
export declare class FileUtils {
    private static readonly MAX_FILE_SIZE;
    private static readonly ALLOWED_EXTENSIONS;
    private static securityEngine;
    private static getSecurityEngine;
    static readFile(filePath: string): Promise<FileOperationResult<string>>;
    static writeFile(filePath: string, content: string): Promise<FileOperationResult<void>>;
    static readYamlFile<T>(filePath: string, schema?: z.ZodSchema<T>): Promise<FileOperationResult<T>>;
    static writeYamlFile<T>(filePath: string, data: T, schema?: z.ZodSchema<T>): Promise<FileOperationResult<void>>;
    static readJsonFile<T>(filePath: string, schema?: z.ZodSchema<T>): Promise<FileOperationResult<T>>;
    static writeJsonFile<T>(filePath: string, data: T, schema?: z.ZodSchema<T>): Promise<FileOperationResult<void>>;
    private static validateFilePath;
    static ensureDirectory(dirPath: string): Promise<FileOperationResult<void>>;
    static fileExists(filePath: string): Promise<boolean>;
    static deleteFile(filePath: string): Promise<FileOperationResult<void>>;
}
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