Update app.py

app.py

@@ -1452,49 +1452,45 @@ def build_langgraph_pipeline():
 from tempfile import mkdtemp
 
 
+from tempfile import mkdtemp
+import os
+
 from tempfile import mkdtemp
 import os
 
 def get_file_path_tab6(file):
-    # DEBUG: 印出接收到的 file 物件
-    print("DEBUG: Received file object:", file)
-    
     # 如果傳入的是字串，確認該字串為存在的檔案路徑
     if isinstance(file, str):
         if os.path.exists(file):
             return file
         else:
-            print("DEBUG: String file path does not exist:", file)
             return None
     # 如果傳入的是字典（Gradio 上傳後常見格式）
     elif isinstance(file, dict):
         data = file.get("data")
         name = file.get("name")
-        print("DEBUG: File dict - name:", name, "data type:", type(data))
-        if data:
-            # 如果 data 為字串且該路徑存在，就直接返回
-            if isinstance(data, str) and os.path.exists(data):
-                return data
-            else:
-                # 將 data 寫入臨時檔案
-                temp_dir = mkdtemp()
-                file_path = os.path.join(temp_dir, name if name else "uploaded_file")
-                with open(file_path, "wb") as f:
-                    if isinstance(data, str):
-                        f.write(data.encode("utf-8"))
-                    else:
-                        f.write(data)
-                # 檢查檔案是否成功寫入
-                if os.path.exists(file_path):
-                    print("DEBUG: File successfully written to:", file_path)
-                    return file_path
-                else:
-                    print("DEBUG: File not created at:", file_path)
-                    return None
-        else:
-            # 如果沒有 data，就返回 None 避免返回無效檔案名稱
-            print("DEBUG: No data field in file dict")
+        # 如果沒有 data 欄位，直接返回 None，避免僅返回檔名
+        if not data:
+            print("DEBUG: No data field in file dict; returning None for", name)
             return None
+        # 如果 data 為字串且該路徑存在，就直接返回
+        if isinstance(data, str) and os.path.exists(data):
+            return data
+        else:
+            # 將 data 寫入臨時檔案
+            temp_dir = mkdtemp()
+            file_path = os.path.join(temp_dir, name if name else "uploaded_file")
+            with open(file_path, "wb") as f:
+                if isinstance(data, str):
+                    f.write(data.encode("utf-8"))
+                else:
+                    f.write(data)
+            if os.path.exists(file_path):
+                print("DEBUG: File successfully written to:", file_path)
+                return file_path
+            else:
+                print("DEBUG: File not created at:", file_path)
+                return None
     # 如果是具有 .save 屬性的物件，直接呼叫 save 並返回檔案路徑
     elif hasattr(file, "save"):
         temp_dir = mkdtemp()
@@ -1504,14 +1500,11 @@ def get_file_path_tab6(file):
             print("DEBUG: File saved at:", file_path)
             return file_path
         else:
-            print("DEBUG: File not saved at:", file_path)
             return None
     else:
-        # 如果 file 有 .name 屬性，嘗試返回該屬性
-        if hasattr(file, "name"):
-            if os.path.exists(file.name):
-                return file.name
-        print("DEBUG: File type not recognized.")
+        # 若 file 有 .name 屬性，檢查該檔案是否存在
+        if hasattr(file, "name") and os.path.exists(file.name):
+            return file.name
         return None
 
 def langgraph_tab6_main(query: str, file=None):
@@ -1523,7 +1516,7 @@ def langgraph_tab6_main(query: str, file=None):
         docs_by_file = []    # 每份文件的完整內文
         
         for f in files:
-            path = get_file_path_tab6(f)  # 使用新版 get_file_path_tab6
+            path = get_file_path_tab6(f)
             if not path:
                 print("DEBUG: get_file_path_tab6 returned None for file:", f)
                 continue
@@ -1547,7 +1540,6 @@ def langgraph_tab6_main(query: str, file=None):
             docs_by_file.append(text)
             all_docs.extend(docs)
         
-        # 建立檢索器（用於非多代理流程）
         if not all_docs:
             print("DEBUG: No valid document content read. file_names:", file_names)
             retriever = None
@@ -1564,13 +1556,11 @@ def langgraph_tab6_main(query: str, file=None):
                 memory=ConversationBufferMemory(memory_key="chat_history", return_messages=True),
             )
         
-        # 解析查詢拆解子意圖
         parsed = parse_query(query)
         if (parsed.get("summarise") or parsed.get("compare")) and len(docs_by_file) > 0:
             final_answer = execute_multi_agent(parsed, docs_by_file, file_names)
             return final_answer
         
-        # 否則，走原有 LangGraph pipeline
         graph = build_langgraph_pipeline()
         state = {"query": query, "file_names": file_names}
         if retriever is not None: