/**
 * Response DTO for getting client information
 *
 * Used to return client information extracted from the current request context.
 * Includes IP address, user agent, device info, and optional geolocation data.
 *
 * @example
 * ```typescript
 * const result = await clientInfoService.get();
 * // Returns: { ipAddress: '192.168.1.100', userAgent: 'Mozilla/5.0...', ... }
 * ```
 */
import { ClientInfo } from '../interfaces/client-info.interface';
/**
 * Response DTO for client information
 */
export declare class GetClientInfoResponseDTO implements ClientInfo {
    /**
     * Client IP address
     *
     * Extracted from X-Forwarded-For, CF-Connecting-IP, etc.
     * Automatically handles proxies and load balancers.
     * Returns 'unknown' if called outside request context.
     */
    ipAddress: string;
    /**
     * User agent string from the request
     *
     * Returns 'unknown' if called outside request context.
     */
    userAgent: string;
    /**
     * Device token for trusted device feature
     *
     * Extracted from cookie (nauth_device_token) or header (X-Device-Token).
     * Optional - only present if device token exists.
     */
    deviceToken?: string;
    /**
     * Optional device name (if provided by client)
     */
    deviceName?: string;
    /**
     * Optional device type (if provided by client)
     */
    deviceType?: 'mobile' | 'desktop' | 'tablet';
    /**
     * Optional IP country (from geolocation, if available)
     */
    ipCountry?: string;
    /**
     * Optional IP city (from geolocation, if available)
     */
    ipCity?: string;
    /**
     * Optional IP latitude (from geolocation, if available)
     * Used for impossible travel detection
     */
    ipLatitude?: number;
    /**
     * Optional IP longitude (from geolocation, if available)
     * Used for impossible travel detection
     */
    ipLongitude?: number;
    /**
     * Platform extracted from user agent
     *
     * Examples: "iOS", "Android", "Windows", "macOS"
     */
    platform?: string;
    /**
     * Browser extracted from user agent
     *
     * Examples: "Chrome", "Safari", "Firefox"
     */
    browser?: string;
    /**
     * Current session ID (if available from authenticated request)
     *
     * Extracted from JWT token payload after authentication.
     */
    sessionId?: number;
    /**
     * Current user ID (if available from authenticated request)
     *
     * Extracted from JWT token payload (sub claim) after authentication.
     * Used to identify who performed an action (e.g., for audit trails).
     */
    userId?: number;
    /**
     * Current user's sub (UUID, if available from authenticated request).
     * Prefer this over userId for performedBy in audit and mfaExemptGrantedBy.
     */
    sub?: string;
}
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