Upload response_engine.py

response_engine.py

@@ -0,0 +1,25 @@
+
+from knowledge_base import KnowledgeBase
+from datetime import datetime
+import random
+
+class ResponseEngine:
+    def __init__(self):
+        self.kb = KnowledgeBase()
+
+    def format_response(self, user_input: str) -> str:
+        answer = self.kb.retrieve_answer(user_input)
+
+        if "don't know" in answer.lower():
+            fallback = [
+                "I'm not sure about that yet, but I'm learning!",
+                "That's a great question. I'll need to look into it.",
+                "I don't have that information, but I'll try to find out."
+            ]
+            return random.choice(fallback)
+
+        timestamp = datetime.now().strftime('%Y-%m-%d %H:%M')
+        return f"[{timestamp}] 🤖 Based on what I know: {answer}"
+
+    def close(self):
+        self.kb.close()