// react/LicenseProvider.js

import React, { createContext, useState, useEffect } from 'react';
import { activateLicense } from '../client/validate';
import { cacheLicenseData, getCachedLicenseData, isLicenseCacheValid } from '../client/offline';

export const LicenseContext = createContext();

export const LicenseProvider = ({ userId, licenseKey, children }) => {
  const [isLicensed, setIsLicensed] = useState(false);

  useEffect(() => {
    const checkLicense = async () => {
      if (navigator.onLine) {
        const valid = await activateLicense(userId, licenseKey);
        setIsLicensed(valid);
        if (valid) cacheLicenseData({ userId, licenseKey });
      } else {
        setIsLicensed(isLicenseCacheValid());
      }
    };

    checkLicense();
  }, [userId, licenseKey]);

  return (
    <LicenseContext.Provider value={{ isLicensed }}>
      {children}
    </LicenseContext.Provider>
  );
};