Update app.py

app.py

@@ -232,6 +232,26 @@ class ImageAnalyzer:
         except Exception as e:
             logger.error(f"Heatmap generation error: {e}")
             return None
+class RAGSystem:
+    """Basic RAG System for storing and retrieving documents."""
+    def __init__(self):
+        self.embedding_model = SentenceTransformer(config["model_settings"]["sentence_transformer"])
+        self.vector_store = faiss.IndexFlatL2(384)  # 384-dim for MiniLM embeddings
+        self.knowledge_base = []
+
+    def add_documents(self, docs: List[str]):
+        """Add documents to the vector store."""
+        embeddings = self.embedding_model.encode(docs)
+        self.vector_store.add(np.array(embeddings).astype('float32'))
+        for doc in docs:
+            self.knowledge_base.append({"text": doc})
+
+    def search(self, query: str, k: int = 3):
+        """Retrieve similar documents for the query."""
+        query_embedding = self.embedding_model.encode([query])
+        D, I = self.vector_store.search(np.array(query_embedding).astype('float32'), k)
+        return [self.knowledge_base[i]["text"] for i in I[0]]
+
 
 class EnhancedRAGSystem(RAGSystem):
     """Enhanced RAG system with additional features"""