/**
 * This file is part of the SplendidBear Websites' projects.
 *
 * Copyright (c) 2026 @ www.splendidbear.org
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

import 'cap-widget';
import React, { Fragment, useCallback, useEffect, useRef, useState } from 'react';
import { func, node, string } from 'prop-types';

const CAPTCHA_STORAGE_KEY = 'mineseeker_captcha_verified';
const CAPTCHA_TOKEN_KEY = 'mineseeker_captcha_token';

const CaptchaOverlay = ({ apiEndpoint, onVerified, children }) => {
  const [verified, setVerified] = useState(false);
  const capRef = useRef(null);

  const handleToken = useCallback(token => {
    const wrapper = document.getElementById('mine-wrapper');
    if (wrapper) {
      wrapper.dataset.captchaToken = token;
    }
    sessionStorage.setItem(CAPTCHA_TOKEN_KEY, token);
    sessionStorage.setItem(CAPTCHA_STORAGE_KEY, Date.now().toString());
    setVerified(true);
    onVerified?.();
  }, [onVerified]);

  useEffect(() => {
    const storedToken = sessionStorage.getItem(CAPTCHA_TOKEN_KEY);
    const storedTime  = sessionStorage.getItem(CAPTCHA_STORAGE_KEY);

    if (storedToken && storedTime) {
      const elapsed = (Date.now() - parseInt(storedTime)) / 1000;
      if (110 > elapsed) {
        const wrapper = document.getElementById('mine-wrapper');
        if (wrapper) {
          wrapper.dataset.captchaToken = storedToken;
        }
        setVerified(true);
        onVerified?.();
        return;
      }
    }
  }, [onVerified]);

  useEffect(() => {
    const widget = document.createElement('cap-widget');
    widget.style.display = 'none';
    capRef.current = widget;
    document.body.appendChild(widget);

    const cap = new window.Cap({ apiEndpoint }, widget);
    let cancelled = false;

    const run = async () => {
      try {
        const result = await cap.solve();
        if (!cancelled && result?.token) {
          handleToken(result.token);
        }
      } catch (_) {
        if (!cancelled) {
          setTimeout(() => {
            if (!cancelled) {
              run();
            }
          }, 1200);
        }
      }
    };

    run();

    return () => {
      cancelled = true;
      widget.remove();
      capRef.current = null;
    };
  }, [handleToken]);

  if (verified) {
    return <Fragment>{children}</Fragment>;
  }

  return (
    <div className="captcha-overlay">
      <div className="captcha-content">
        <div className="captcha-icon">
          <i className="fa fa-shield-halved" />
        </div>
        <h1 className="captcha-title">Ready to Play?</h1>
        <p className="captcha-description">
          Verifying your session...
        </p>
      </div>
    </div>
  );
};

export default CaptchaOverlay;

CaptchaOverlay.propTypes = {
  apiEndpoint: string.isRequired,
  onVerified:  func,
  children:    node,
};