More changes than expected. Mobile version improvements & PWA

scraper/src/openfoodfacts.js

@@ -0,0 +1,44 @@
+const puppeteer = require('puppeteer-extra');
+
+async function scrapeOpenFoodFacts(query, browser) {
+  const page = await browser.newPage();
+  const url = `https://world.openfoodfacts.org/cgi/search.pl?search_terms=${encodeURIComponent(query)}&search_simple=1&action=process`;
+  
+  try {
+    await page.goto(url, { waitUntil: 'domcontentloaded', timeout: 30000 });
+    
+    const products = await page.evaluate(() => {
+      const results = [];
+      const items = document.querySelectorAll('#search_results li');
+      
+      items.forEach(item => {
+        const linkEl = item.querySelector('a');
+        const titleEl = item.querySelector('span:not([class])') || item.querySelector('.list_product_name'); // heuristic
+        
+        let link = linkEl ? linkEl.href : null;
+        if (link && !link.startsWith('http')) {
+            link = `https://world.openfoodfacts.org${link}`;
+        }
+        
+        if (linkEl && linkEl.title) {
+          results.push({
+            name: linkEl.title.trim(),
+            price: 'N/A', // OFF usually doesn't have prices
+            link: link,
+            source: 'OpenFoodFacts'
+          });
+        }
+      });
+      return results.slice(0, 5);
+    });
+
+    return products;
+  } catch (error) {
+    console.error(`[OpenFoodFacts] Error scraping ${query}:`, error.message);
+    return [];
+  } finally {
+    await page.close();
+  }
+}
+
+module.exports = scrapeOpenFoodFacts;