const puppeteer = require('puppeteer-extra');

async function scrapeGoogleShopping(query, browser) {
  const page = await browser.newPage();
  const url = `https://www.google.com/search?q=${encodeURIComponent(query)}&tbm=shop`;
  
  try {
    await page.goto(url, { waitUntil: 'domcontentloaded', timeout: 30000 });
    
    const products = await page.evaluate(() => {
      const results = [];
      // Google Shopping results are often inside blocks with class .sh-dgr__grid-result or similar
      const cards = document.querySelectorAll('.sh-dgr__grid-result, .sh-np__click-target');
      
      cards.forEach(card => {
        const titleEl = card.querySelector('h3, [role="heading"]');
        const priceEl = card.querySelector('.a80p0, [data-price], span[aria-hidden="true"]:not(:empty)');
        // Fallback for price: look for any element mimicking a price format
        let priceText = null;
        if (priceEl) {
           priceText = priceEl.innerText.trim();
        } else {
           const spans = card.querySelectorAll('span');
           spans.forEach(span => {
               if (span.innerText.includes('€') || span.innerText.match(/\d+,\d{2}/)) {
                   priceText = span.innerText.trim();
               }
           });
        }

        const linkEl = card.tagName === 'A' ? card : card.querySelector('a');
        
        if (titleEl && priceText) {
          results.push({
            name: titleEl.innerText.trim(),
            price: priceText,
            link: linkEl ? linkEl.href : null,
            source: 'Google Shopping'
          });
        }
      });
      return results.slice(0, 5);
    });

    return products;
  } catch (error) {
    console.error(`[Google Shopping] Error scraping ${query}:`, error.message);
    return [];
  } finally {
    await page.close();
  }
}

module.exports = scrapeGoogleShopping;