const puppeteer = require('puppeteer');
const axios = require('axios');

function wait(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function fbdl(url) {
  if (!url) {
    return {
      author: "Herza",
      success: false,
      error: "URL is required"
    };
  }

  try {
    const browser = await puppeteer.launch({ 
      headless: true,
      args: ['--no-sandbox', '--disable-setuid-sandbox']
    });
    
    const page = await browser.newPage();
    
    await page.setUserAgent('Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.7444.171 Mobile Safari/537.36');

    let downloadUrl = null;
    let apiResponse = null;

    page.on('response', async (response) => {
      const resUrl = response.url();
      
      if (resUrl.includes('api.hitube.io/st-tik-video/fb/dl')) {
        try {
          const data = await response.json();
          apiResponse = data;
        } catch (e) {}
      }
      
      if (resUrl.includes('api.hitube.io/st-tik-video/token/')) {
        downloadUrl = resUrl;
      }
    });

    await page.goto('https://www.hitube.io/id/facebook-video-download', { 
      waitUntil: 'networkidle2',
      timeout: 60000 
    });

    await wait(2000);

    await page.waitForSelector('textarea[aria-label="Tempelkan tautan di sini"]', {
      visible: true,
      timeout: 10000
    });

    await page.type('textarea[aria-label="Tempelkan tautan di sini"]', url);

    await wait(1500);

    await page.waitForSelector('button.search-btn', {
      visible: true,
      timeout: 10000
    });

    await page.click('button.search-btn');

    await wait(12000);

    try {
      await page.waitForSelector('div.flex:has-text("Download Foto")', {
        visible: true,
        timeout: 30000
      });
    } catch (e) {
      console.log('Download button not found, but may have captured URL');
    }

    await wait(2000);

    await browser.close();

    if (downloadUrl) {
      return {
        author: "Herza",
        success: true,
        data: {
          url: downloadUrl,
        }
      };
    }

    return {
      author: "Herza",
      success: false,
      error: "Failed to capture download URL"
    };

  } catch (error) {
    console.log('Puppeteer failed, trying API fallback...', error.message);
    return await fbdlAPI(url);
  }
}

async function fbdlAPI(url) {
  try {
    const sessionid = `hitube.io_${Math.random().toString(36).substring(7)}_${Date.now()}`;
    
    const secureMessages = [
      'XEKpZjB+0IPdSL33zsCyrSczOHvRfGabOwmJfklhnba8ej54WUKef4h1bAQaFcT396jxFrqu0t6VMMk2wToCSs3nvF/Gcv4RHNjX5PCyv8YNg4xncXWyVBrJGOUnanGkdopMxDhqaJkIJusLrAsrHYD3kfI40T59BNJBHd3SlJ8=',
      'KZ/0an3pAJwU3XZk/KY08rFh6GjVfXrHKuvOdJBMRWPMO/le4Hrb/E4WzUxZYraEHKYYbrc3EasFGZPoNc3KSqsdwQqKM05epVe+y0ZcZik7e2rVRuiBifPETn2FYT58M61m442O6ncc6aJGJcsTjKp0B+3Mz9kKslRFkcIsei0=',
      'YFLqajC+1JQeTM44xtDzsSchPIwSgHbcPxnKgkmincd9fk65XVLfg5i2cBRbGdU497kyGsrv1u7WNNl3xUpDTt4owRrLN16fqOkY6QDzw9ZOh5yodYWzWCsJHPVobhHldqpNyEiqbKlJKvtMsAtsIZE4lgJ51U6+COKCIe4Tmq9='
    ];
    
    const secureMessage = secureMessages[Math.floor(Math.random() * secureMessages.length)];
    
    const apiUrl = `https://api.hitube.io/st-tik-video/fb/dl?url=${encodeURIComponent(url)}&sessionid=${sessionid}`;
    
    const response = await axios.get(apiUrl, {
      headers: {
        'Accept': 'application/json, text/plain, */*',
        'X-Secure-Message': secureMessage,
        'User-Agent': 'Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36',
        'Referer': 'https://www.hitube.io/id/facebook-video-download',
        'Origin': 'https://www.hitube.io'
      }
    });

    if (response.data.code === 200 && response.data.result.fbBos.length > 0) {
      const token = response.data.result.fbBos[0].url;
      const downloadUrl = `https://api.hitube.io/st-tik-video/token/${token}?sessionid=${sessionid}&wh=www.hitube.io&status=download`;
      
      return {
        author: "Herza",
        success: true,
        data: {
          url: downloadUrl
        }
      };
    }

    return {
      author: "Herza",
      success: false,
      error: "Video not found"
    };

  } catch (error) {
    return {
      author: "Herza",
      success: false,
      error: error.message
    };
  }
}

const handler = async (req, res) => {
  try {
    const { url } = req.query;

    if (!url) {
      return res.status(400).json({
        author: "Herza",
        success: false,
        error: 'Missing required parameter: url'
      });
    }

    const result = await fbdl(url);
    res.json(result);

  } catch (error) {
    res.status(500).json({
      author: "Herza",
      success: false,
      error: error.message
    });
  }
};

module.exports = {
  name: 'Facebook Downloader',
  description: 'Download Facebook Video using Our API service',
  type: 'GET',
  routes: ['api/download/fbdl'],
  tags: ['downloader', 'tools', 'misc'],
  parameters: ['url', 'key'],
  enabled: true,
  main: ['Downloader'],
  handler
};