Update app.py

app.py

@@ -8,35 +8,43 @@ load_dotenv("apiroute.env")
 api_key = os.getenv("OPENAI_API_KEY")
 api_base = os.getenv("OPENAI_API_BASE")
 
-# Ensure they exist
+# Sanity check
 if not api_key or not api_base:
-    st.error("❌ Missing API credentials in apiroute.env.")
+    st.error("❌ API key or base URL missing in apiroute.env.")
     st.stop()
 
-# Set for LangChain/OpenAI use
-os.environ["OPENAI_API_KEY"] = api_key
-os.environ["OPENAI_API_BASE"] = api_base
 
-# Initialize LLM
+
+# Init LLM
 llm = ChatOpenAI(model_name="google/gemma-3n-e2b-it:free", temperature=0.7)
 
-# Streamlit setup
+# Page settings
 st.set_page_config(page_title="Chatbot", layout="centered")
-st.title("💬 Chat with LLM")
-
+st.title("💬 Chat with me")
 
+# Chat history
 if "history" not in st.session_state:
     st.session_state.history = []
 
-
+# Display chat history
 for sender, msg in st.session_state.history:
     st.markdown(f"**{sender}:** {msg}")
 
-user_input = st.text_input("ASK ME anything", key="input")
-
+# Input at bottom
+user_input = st.text_input("AsK me Anything", key="input")
 
-if user_input:
+# Handle input
+if user_input and st.session_state.get("input_submitted") is not True:
     st.session_state.history.append(("You", user_input))
     response = llm.invoke(user_input)
     st.session_state.history.append(("Bot", response.content))
-    st.rerun()  # force UI refresh
+
+    # ✅ Mark input as handled and clear box
+    st.session_state.input_submitted = True
+    st.session_state.input = ""  # Clear input box
+    st.rerun()
+
+# ✅ Reset flag after rerun
+if st.session_state.get("input_submitted"):
+    st.session_state.input_submitted = False
+