Update recommendation_module.py

recommendation_module.py

@@ -132,4 +132,63 @@ def get_recommendation(
     else:
         size_label = "large"
 
-    # Build query te
+    # Build query text — Sentence Transformer sẽ tìm case tương tự nhất
+    query_text = (
+        f"{site_type} ecotourism site, {size_label} size, "
+        f"{visitor_count} visitors per day, {risk_level} waste risk. "
+        f"Needs waste management improvement for sustainability certification."
+    )
+
+    # AI similarity search
+    model = get_model()
+    query_embedding = model.encode(query_text, convert_to_tensor=True)
+    case_embeddings = get_case_embeddings()
+    similarities    = util.cos_sim(query_embedding, case_embeddings)[0]
+
+    # Top 1 match
+    best_idx  = int(torch.argmax(similarities))
+    best_case = CASES[best_idx]
+    best_sim  = float(similarities[best_idx])
+
+    # All scores sorted
+    scored = sorted(
+        zip(CASES, similarities.tolist()),
+        key=lambda x: -x[1]
+    )
+    rows = "\n".join([
+        f"| {c['name']} | {s:.1%} |"
+        for c, s in scored
+    ])
+
+    output = f"""## 💡 Recommendation for your site
+
+**Query:** {query_text}
+
+**Most Similar Certified Site:** {best_case['name']} (similarity: {best_sim:.1%})
+
+---
+
+### 📋 3-Phase Action Roadmap
+
+**Phase 1 — Immediate (within 24 hours)**
+{best_case['rec_immediate']}
+
+**Phase 2 — Short Term (this month)**
+{best_case['rec_monthly']}
+
+**Phase 3 — Long Term (6-12 months)**
+{best_case['rec_longterm']}
+
+---
+
+### ✅ Proven Result from Similar Site
+{best_case['result']}
+
+---
+
+### Similarity Scores (All Reference Sites)
+| Site | Similarity |
+|------|-----------|
+{rows}
+"""
+    return output, combined_risk