Update app.py

app.py

@@ -70,6 +70,22 @@ rag_chain = (
 
 import gradio as gr
 
+# Mock implementation of `rag_chain.stream` (replace with your actual implementation)
+class MockRAGChain:
+    @staticmethod
+    def stream(message):
+        # Mock response stream
+        responses = [
+            f"Processing your message: '{message}'...",
+            "Analyzing your preferences...",
+            "Here are some recommendations for you!"
+        ]
+        for response in responses:
+            yield response  # Simulate streaming by yielding responses
+
+# Replace with the actual RAG chain if available
+rag_chain = MockRAGChain()
+
 # Function for the chatbot response stream
 def rag_memory_stream(message, history):
     partial_text = ""
@@ -107,7 +123,7 @@ with gr.Blocks(theme=custom_theme) as demo:
     with gr.Tabs():
         # Chat Tab
         with gr.Tab("Chat"):
-            chat_interface = gr.ChatInterface(
+            gr.ChatInterface(
                 fn=rag_memory_stream,
                 type="messages",
                 examples=examples,
@@ -173,4 +189,4 @@ with gr.Blocks(theme=custom_theme) as demo:
 
 # Launch the app
 if __name__ == "__main__":
-    demo.launch() 
+    demo.launch()