interface TwoFactorCode {
    id: string;
    userId: string;
    code: string;
    hashedCode: string;
    type: 'email_verification' | 'password_reset' | 'login_verification' | 'phone_verification';
    expiresAt: Date;
    createdAt: Date;
    attempts: number;
    isUsed: boolean;
    metadata?: {
        email?: string;
        phone?: string;
        ipAddress?: string;
        userAgent?: string;
        purpose?: string;
        [key: string]: any;
    };
}
interface TwoFactorOptions {
    codeLength?: number;
    expiryMinutes?: number;
    maxAttempts?: number;
    type?: 'email_verification' | 'password_reset' | 'login_verification' | 'phone_verification';
    metadata?: {
        email?: string;
        phone?: string;
        ipAddress?: string;
        userAgent?: string;
        purpose?: string;
        [key: string]: any;
    };
}
/**
 * Generate and store a 2FA verification code with enhanced security
 */
declare function generateTwoFactorCode(userId: string, options?: TwoFactorOptions): Promise<{
    code: string;
    codeId: string;
    expiresAt: Date;
    attemptsRemaining: number;
}>;
/**
 * Verify a 2FA code with enhanced security and logging
 */
declare function verifyTwoFactorCode(codeId: string, inputCode: string, userId?: string): Promise<{
    isValid: boolean;
    isExpired: boolean;
    attemptsRemaining: number;
    error?: string;
    metadata?: any;
}>;
/**
 * Clean up expired 2FA codes and rate limit data
 */
declare function cleanupExpiredCodes(): Promise<{
    codesDeleted: number;
    rateLimitEntriesCleared: number;
}>;
/**
 * Get user's active 2FA codes (for debugging/admin purposes)
 */
declare function getUserTwoFactorCodes(userId: string, type?: string): Promise<TwoFactorCode[]>;
/**
 * Enhanced email service registry with validation
 */
/**
 * Send verification email using configured email service
 */
declare function sendVerificationEmail(email: string, code: string, options?: {
    serviceName?: string;
    subject?: string;
    template?: string;
    metadata?: any;
}): Promise<void>;
/**
 * Send verification SMS using configured SMS service
 */
declare function sendVerificationSMS(phone: string, code: string, options?: {
    serviceName?: string;
    template?: string;
    metadata?: any;
}): Promise<void>;
/**
 * Complete email verification workflow
 */
declare function initiateEmailVerification(userId: string, email: string, options?: {
    serviceName?: string;
    subject?: string;
    template?: string;
    codeLength?: number;
    expiryMinutes?: number;
    metadata?: any;
}): Promise<{
    codeId: string;
    expiresAt: Date;
    message: string;
    attemptsRemaining: number;
}>;
/**
 * Complete SMS verification workflow
 */
declare function initiateSMSVerification(userId: string, phone: string, options?: {
    serviceName?: string;
    template?: string;
    codeLength?: number;
    expiryMinutes?: number;
    metadata?: any;
}): Promise<{
    codeId: string;
    expiresAt: Date;
    message: string;
    attemptsRemaining: number;
}>;

export { initiateSMSVerification as a, getUserTwoFactorCodes as b, sendVerificationSMS as c, cleanupExpiredCodes as d, generateTwoFactorCode as g, initiateEmailVerification as i, sendVerificationEmail as s, verifyTwoFactorCode as v };