import { useEffect, useState } from 'react';
import { getAnalytics } from '../core/AnalyticsManager';
import type { SessionInfo } from '../types';

/**
 * Returns live session info — refreshes whenever the component renders.
 *
 * ```tsx
 * function DebugScreen() {
 *   const session = useSession();
 *   return <Text>Session: {session?.sessionId}</Text>;
 * }
 * ```
 */
export function useSession(): SessionInfo | null {
  const [session, setSession] = useState<SessionInfo | null>(null);

  useEffect(() => {
    try {
      setSession(getAnalytics().getSession());
    } catch {
      // Analytics not initialized yet
    }
  }, []);

  return session;
}