import streamlit as st
import requests

st.title("Spatial Parser Demo")

# 密码验证
password = st.text_input("Enter access password:", type="password")
if password != "demo1234":
    st.warning("Please enter the correct password.")
    st.stop()

# 输入框
text = st.text_area("Enter your spatial description:")

if st.button("Submit"):
    with st.spinner("Calling secure backend..."):
        try:
            response = requests.post(
                "https://dsbb0707--spatialparse-back.hf.space/predict",
                json={"text": text},
                timeout=20
            )
            try:
                st.write("Raw response:", response.text)
                result = response.json().get("result", "No result returned.")
            except Exception as e:
                st.error(f"Backend error: {e}\nRaw response: {response.text}")
            st.success(f"Parsed Output:\n\n{result}")
        except Exception as e:
            st.error(f"Backend error: {e}")