import { ValidationSchema, SecurityEvent } from './types.js';
/**
 * Input validation and sanitization service for miura Framework
 * Handles XSS prevention, input sanitization, and output encoding
 */
export declare class ValidationService {
    private static instance;
    private eventListeners;
    private constructor();
    static getInstance(): ValidationService;
    /**
     * Validate input against schema
     */
    validate(data: any, schema: ValidationSchema): {
        valid: boolean;
        errors: Record<string, string[]>;
    };
    /**
     * Sanitize input to prevent XSS
     */
    sanitizeInput(input: string): string;
    /**
     * Encode output to prevent XSS
     */
    encodeOutput(input: string): string;
    /**
     * Validate email format
     */
    validateEmail(email: string): boolean;
    /**
     * Validate URL format
     */
    validateURL(url: string): boolean;
    /**
     * Validate phone number
     */
    validatePhone(phone: string): boolean;
    /**
     * Validate password strength
     */
    validatePassword(password: string): {
        valid: boolean;
        score: number;
        feedback: string[];
    };
    /**
     * Check for SQL injection patterns
     */
    detectSQLInjection(input: string): boolean;
    /**
     * Check for XSS patterns
     */
    detectXSS(input: string): boolean;
    /**
     * Add event listener
     */
    on(event: string, callback: (event: SecurityEvent) => void): void;
    /**
     * Remove event listener
     */
    off(event: string, callback: (event: SecurityEvent) => void): void;
    private validateRule;
    private sanitizeForLogging;
    private emitSecurityEvent;
}
export declare const validation: ValidationService;
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