/**
 * Custom hook to detect pilot program participation
 *
 * Checks both environment variable (VITE_PILOT_MODE_ENABLED) and URL parameter (?pilot=true)
 * to determine if pilot mode is active.
 *
 * Priority: Environment variable OR URL parameter (either can enable pilot mode)
 */
import { useMemo } from 'react';
import { useLocation } from 'react-router-dom';
import PILOT_CONFIG from '../config/pilot';

interface PilotDetectionResult {
  isPilot: boolean;
  couponCode: string | null;
  trialMonths: number;
  trialDays: number;
}

export const usePilotDetection = (): PilotDetectionResult => {
  const location = useLocation();

  const pilotInfo = useMemo(() => {
    // Check URL parameter
    const searchParams = new URLSearchParams(location.search);
    const urlPilotParam = searchParams.get('pilot') === 'true';

    // Pilot mode is active if EITHER env var is true OR URL param is true
    const isPilot = PILOT_CONFIG.enabled || urlPilotParam;

    return {
      isPilot,
      couponCode: isPilot ? PILOT_CONFIG.couponCode : null,
      trialMonths: isPilot ? PILOT_CONFIG.trialMonths : 0,
      trialDays: isPilot ? PILOT_CONFIG.trialDays : 14,
    };
  }, [location.search]);

  return pilotInfo;
};