// ==UserScript==
// @name         Rettiwt API Key Generator
// @namespace    https://github.com/Rishikant181/Rettiwt-API
// @version      1.0.1
// @description  Generate a Rettiwt-API API_KEY from X/Twitter cookies
// @author       lihengdao666
// @match        https://x.com/*
// @match        https://twitter.com/*
// @grant        GM_registerMenuCommand
// @grant        GM_setClipboard
// @grant        GM_cookie
// @run-at       document-idle
// @license MIT
// ==/UserScript==

(function () {
  'use strict';

  const COOKIE_NAMES = ['auth_token', 'ct0', 'twid'];

  function getCookie(name, url) {
    return new Promise((resolve, reject) => {
      GM_cookie.list({ name, url }, (cookies, error) => {
        if (error) {
          reject(error);
          return;
        }

        resolve(cookies && cookies[0] ? cookies[0].value : '');
      });
    });
  }

  async function getCookieMap() {
    const urls = [
      'https://x.com/',
      'https://twitter.com/',
    ];

    const result = {};

    for (const name of COOKIE_NAMES) {
      for (const url of urls) {
        const value = await getCookie(name, url);
        if (value) {
          result[name] = value;
          break;
        }
      }
    }

    return result;
  }

  async function generateApiKey() {
    const cookies = await getCookieMap();
    const missing = COOKIE_NAMES.filter((name) => !cookies[name]);

    if (missing.length > 0) {
      throw new Error(`Missing cookies: ${missing.join(', ')}. Please make sure you are logged in to X/Twitter.`);
    }

    const rawKey = `auth_token=${cookies.auth_token};ct0=${cookies.ct0};twid=${cookies.twid};`;
    return btoa(rawKey);
  }

  function copyText(text) {
    if (typeof GM_setClipboard === 'function') {
      GM_setClipboard(text, 'text');
      return;
    }

    return navigator.clipboard.writeText(text);
  }

  GM_registerMenuCommand('Generate Rettiwt API_KEY', async () => {
    try {
      const apiKey = await generateApiKey();
      await copyText(apiKey);
      alert('Rettiwt API_KEY has been copied to your clipboard.\n\nKeep it private and do not share it.');
    } catch (error) {
      alert(error.message || String(error));
    }
  });
})();