analytics client-utils.ts

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/**
 * Client-Side Analytics Utilities
 *
 * Utility functions for client-side analytics tracking.
 * These functions are safe to use in browser environments.
 */
 
/**
 * Generate a unique visitor ID
 */
export function generateVisitorId(): string {
  return `v_${Date.now()}_${Math.random().toString(36).substring(2, 15)}`;
}
 
/**
 * Generate a unique session ID
 */
export function generateSessionId(): string {
  return `s_${Date.now()}_${Math.random().toString(36).substring(2, 15)}`;
}
 
/**
 * Extract UTM parameters from URL
 */
export function extractUTMParams(url: string): {
  source?: string;
  medium?: string;
  campaign?: string;
  term?: string;
  content?: string;
} {
  try {
    const urlObj = new URL(url);
    return {
      source: urlObj.searchParams.get("utm_source") || undefined,
      medium: urlObj.searchParams.get("utm_medium") || undefined,
      campaign: urlObj.searchParams.get("utm_campaign") || undefined,
      term: urlObj.searchParams.get("utm_term") || undefined,
      content: urlObj.searchParams.get("utm_content") || undefined
    };
  } catch {
    return {};
  }
}
 
/**
 * Check if running in browser
 */
export function isBrowser(): boolean {
  return typeof window !== "undefined";
}
 
/**
 * Get current page URL safely
 */
export function getCurrentUrl(): string {
  if (!isBrowser()) return "";
  return window.location.href;
}
 
/**
 * Get document referrer safely
 */
export function getReferrer(): string | undefined {
  if (!isBrowser()) return undefined;
  return document.referrer || undefined;
}
 
/**
 * Get document title safely
 */
export function getPageTitle(): string | undefined {
  if (!isBrowser()) return undefined;
  return document.title || undefined;
}
 
/**
 * Cookie names for analytics
 */
export const ANALYTICS_COOKIES = {
  VISITOR_ID: "__ee_vid",
  SESSION_ID: "__ee_sid"
} as const;
 
/**
 * Session timeout in milliseconds (30 minutes)
 */
export const SESSION_TIMEOUT_MS = 30 * 60 * 1000;
 
/**
 * Heartbeat interval in milliseconds (30 seconds)
 */
export const HEARTBEAT_INTERVAL_MS = 30 * 1000;
 
/**
 * Event queue flush delay in milliseconds
 */
export const EVENT_FLUSH_DELAY_MS = 1000;
 
/**
 * Maximum events per batch
 */
export const MAX_EVENTS_PER_BATCH = 50;