init project

rag_core/retriever.py

@@ -34,6 +34,10 @@ class Retriever:
         dim = len(embeddings[0])
         self.index = faiss.IndexFlatL2(dim)
         self.index.add(np.array(embeddings).astype("float32"))
+
+        # ✅ Tạo thư mục nếu chưa tồn tại
+        os.makedirs(os.path.dirname(INDEX_PATH), exist_ok=True)
+
         faiss.write_index(self.index, INDEX_PATH)
         with open(META_PATH, "wb") as f:
             pickle.dump(valid_texts, f)
@@ -62,6 +66,7 @@ class Retriever:
                 logging.warning(f"❌ Lỗi embedding chunk mới {i}: {e}")
         if new_embeddings:
             self.index.add(np.array(new_embeddings).astype("float32"))
+            os.makedirs(os.path.dirname(INDEX_PATH), exist_ok=True)
             faiss.write_index(self.index, INDEX_PATH)
             with open(META_PATH, "wb") as f:
                 pickle.dump(self.texts, f)