Update ai_service.py

ai_service.py

@@ -1,4 +1,4 @@
-# ai_service.py (Final version with leading slash for api_name)
+# ai_service.py (Final version, added None placeholder for Gradio button input)
 import json
 from datetime import datetime
 import google.generativeai as genai
@@ -46,8 +46,8 @@ def call_mcp_pws_search() -> str:
         print(f"--- 正在呼叫遠端 PWS MCP 伺服器 (由 Gemini 觸發) ---")
         client = Client("cwadayi/MCP-pws")
         
-        # [核心修正] 根據伺服器的提示，在 api_name 前方加上斜線
-        result = client.predict(api_name="/get_disaster_warnings")
+        # [核心修正] 傳入一個 None 作為伺服器端按鈕事件所需的佔位符輸入
+        result = client.predict(None, api_name="/get_disaster_warnings")
         
         return result[0] if isinstance(result, tuple) and len(result) > 0 else str(result)
     except Exception as e: