import gradio as gr
import requests

BACKEND_URL = "https://dsbb0707-SpatialParseback.hf.space/api/predict/"

def call_backend(input_text):
    try:
        response = requests.post(
            BACKEND_URL,
            json={"data": [input_text]},
            timeout=10
        )
        if response.status_code == 200:
            result = response.json()["data"][0]
            return f"✅ {result['result']}\n⏰ {result['timestamp']}"
        return f"❌ Backend Error (HTTP {response.status_code})"
    except Exception as e:
        return f"⚠️ Connection Error: {str(e)}"

# Gradio界面构建
with gr.Blocks() as demo:
    gr.Markdown("## 前端交互界面")
    with gr.Row():
        input_box = gr.Textbox(label="输入文本", placeholder="请输入...")
        output_box = gr.Textbox(label="处理结果", interactive=False)
    submit_btn = gr.Button("提交", variant="primary")
    
    submit_btn.click(
        fn=call_backend,
        inputs=input_box,
        outputs=output_box
    )

# 关键修改：使用正确的Gradio启动方式
if __name__ == "__main__":
    demo.launch(server_name="0.0.0.0", server_port=7860)