Smart product cards: only show products AI actually mentions in response, match by model code + name keywords

index.html

@@ -1253,19 +1253,42 @@ text=text.replace(/\/san-pham\/[a-z0-9-]+\/index\.html/g,'');
 text=text.replace(/\*\*([^*]+)\*\*/g,'<strong>$1</strong>');
 // Line breaks
 text=text.replace(/\n/g,'<br>');
-// Add product cards if available
+// Smart product cards: only show products MENTIONED in the AI response
 if(matchedProducts&&matchedProducts.length>0){
-let cards=matchedProducts.slice(0,3).map(p=>
+let mentionedProducts=filterMentionedProducts(text,matchedProducts);
+if(mentionedProducts.length>0){
+let cards=mentionedProducts.slice(0,4).map(p=>
 '<a href="/san-pham/'+p.slug+'/index.html" style="text-decoration:none;color:inherit;display:flex;gap:10px;background:var(--l);border-radius:10px;padding:10px;margin-top:6px;border:1px solid var(--gl);transition:all .2s" onmouseover="this.style.borderColor=\'var(--p)\'" onmouseout="this.style.borderColor=\'var(--gl)\'">'
 +'<img src="'+p.image+'" style="width:50px;height:50px;object-fit:contain;border-radius:6px;background:#fff;flex-shrink:0" onerror="this.style.display=\'none\'">'
 +'<div style="flex:1;min-width:0"><div style="font-size:.76rem;font-weight:600;color:var(--d);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden">'+p.name+'</div>'
 +'<div style="font-size:.8rem;font-weight:800;color:var(--p);margin-top:2px">'+(p.price||'Liên hệ')+'</div></div></a>'
 ).join('');
-text+=cards;
+text+='<div style="margin-top:10px;padding-top:10px;border-top:1px solid var(--gl)"><div style="font-size:.68rem;font-weight:700;color:var(--g);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px">👉 Xem chi tiết sản phẩm</div>'+cards+'</div>';
+}
 }
 return text;
 }
 
+// Filter products that are actually mentioned in the AI response
+function filterMentionedProducts(responseText,products){
+if(!products||!products.length)return[];
+let text=responseText.toLowerCase().replace(/<[^>]*>/g,' ');
+let mentioned=[];
+for(let p of products){
+// Check model code (most reliable match)
+let model=(p.model||'').toLowerCase().replace(/[^a-z0-9]/g,'');
+if(model.length>=3&&text.replace(/[^a-z0-9]/g,'').includes(model)){mentioned.push(p);continue}
+// Check significant words in product name (at least 2 matches from meaningful words)
+let nameWords=p.name.toLowerCase().replace(/[|]/g,' ').split(/\s+/).filter(w=>w.length>3&&!['malloca','eurogold','grob'].includes(w));
+let matchCount=nameWords.filter(w=>text.includes(w)).length;
+if(matchCount>=2){mentioned.push(p);continue}
+// Check if price is mentioned with nearby product context
+let priceStr=(p.price||'').replace(/\./g,'').replace('đ','');
+if(priceStr&&text.replace(/\./g,'').includes(priceStr)){mentioned.push(p)}
+}
+return mentioned;
+}
+
 async function sendChat(){
 if(chatBusy)return;
 let input=document.getElementById('chatInput');