From 1ab90de913405b45050e0f732a03004087134fda Mon Sep 17 00:00:00 2001
From: zhaoqingang <zhaoqg0118@163.com>
Date: 星期一, 25 十一月 2024 11:11:04 +0800
Subject: [PATCH] 上传dify文件

---
 app/api/chat.py |  168 ++++++++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 127 insertions(+), 41 deletions(-)

diff --git a/app/api/chat.py b/app/api/chat.py
index 9784eb9..483a69a 100644
--- a/app/api/chat.py
+++ b/app/api/chat.py
@@ -14,6 +14,7 @@
 from app.models.user_model import UserModel
 from app.service.dialog import update_session_history
 from app.service.basic import BasicService
+from app.service.difyService import DifyService
 from app.service.ragflow import RagflowService
 from app.service.service_token import get_bisheng_token, get_ragflow_token
 from app.service.session import SessionService
@@ -49,7 +50,6 @@
         try:
             async def forward_to_ragflow():
                 while True:
-                    is_new = False
                     message = await websocket.receive_json()
                     print(f"Received from client {chat_id}: {message}")
                     chat_history = message.get('chatHistory', [])
@@ -57,7 +57,6 @@
                     if len(chat_history) == 0:
                         chat_history = await ragflow_service.get_session_history(token, chat_id)
                         if len(chat_history) == 0:
-                            is_new = True
                             chat_history = await ragflow_service.set_session(token, agent_id,
                                                                              message, chat_id, True)
                             # print("chat_history------------------------", chat_history)
@@ -103,8 +102,12 @@
                             result = {"message": f"鍐呴儴閿欒锛� {e2}", "type": "close"}
                             await websocket.send_json(result)
                             print(f"Error process message of ragflow: {e2}")
-                    dialog_chat_history = await ragflow_service.get_session_history(token, chat_id, 1)
-                    await update_session_history(db, dialog_chat_history, current_user.id, is_new)
+                    try:
+                        dialog_chat_history = await ragflow_service.get_session_history(token, chat_id, 1)
+                        await update_session_history(db, dialog_chat_history, current_user.id)
+                    except Exception as e:
+                        logger.error(e)
+                        logger.error("-----------------淇濆瓨ragflow鐨勫巻鍙蹭細璇濆紓甯�-----------------")
 
             # 鍚姩浠诲姟澶勭悊瀹㈡埛绔秷鎭�
             tasks = [
@@ -209,11 +212,11 @@
                 question = message.get("message")
                 try:
                     SessionService(db).create_session(
-                        session_id=chat_id,
-                        name=question,
-                        agent_id=agent_id,
-                        agent_type=AgentType.BASIC,
-                        user_id=current_user.id
+                        chat_id,
+                        question,
+                        agent_id,
+                        AgentType.BASIC,
+                        current_user.id
                     )
                 except Exception as e:
                     logger.error(e)
@@ -231,14 +234,14 @@
                         excel_url = None
                         if file_name:
                             excel_url = f"/api/files/download/?agent_id=basic_question_talk&file_id={file_name}&file_type=word"
-                        result = {"message": output, "type": "message", "file_url": excel_url}
+                        result = {"message": output, "type": "message", "file_url": excel_url, "file_name":file_name}
                         try:
                             SessionService(db).update_session(chat_id,
                                                               message={"role": "assistant", "content": result})
                         except Exception as e:
                             logger.error(e)
-                        logger.error("-----------------11111111--------------------")
-                        await websocket.send_json(result | data)
+                        logger.error("-----------------杩斿洖鏁版嵁--------------------")
+                        await websocket.send_json(result)
                     except Exception as e2:
 
                         result = {"message": f"鍐呴儴閿欒锛� {e2}", "type": "close"}
@@ -247,47 +250,130 @@
                         await websocket.send_json(result)
 
                 else:
-                    async for result in service.excel_talk(question, chat_id):
+                    async for data in service.excel_talk(question, chat_id):
+                        output = data.get("output", "")
+                        excel_name = data.get("excel_name", "")
+                        image_name = data.get("image_name", "")
+
+                        def build_file_url(name, file_type):
+                            if not name:
+                                return None
+                            return (f"/api/files/download/?agent_id={agent_id}&file_id={name}"
+                                    f"&file_type={file_type}")
+                        excel_url = build_file_url(excel_name, 'excel')
+                        image_url = build_file_url(image_name, 'image')
+                        if excel_url or data.get("e", ""):
+                            try:
+                                SessionService(db).update_session(chat_id,
+                                                                  message={
+                                                                      "content": output,
+                                                                      "excel_url": excel_url,
+                                                                      "image_url": image_url,
+                                                                      "sql": data.get("sql", ""),
+                                                                      "code": data.get("code", ""),
+                                                                      "e": data.get("e", ""),
+                                                                      "role": "assistant"})
+                            except Exception as e:
+                                logger.error(f"Unexpected error when update_session: {e}")
+                        # 鍙戦�佺粨鏋滅粰瀹㈡埛绔�
+                        data["type"] = "message"
+                        data["message"] = output
+                        data["excel_url"] = excel_url
+                        data["image_url"] = image_url
+                        await websocket.send_json(data)
+        except Exception as e:
+            logger.error(e)
+            await websocket.send_json({"message": "鍑虹幇閿欒锛�", "type": "error"})
+        finally:
+            await websocket.close()
+            print(f"Client {agent_id} disconnected")
+    if agent_type == AgentType.DIFY:
+        dify_service = DifyService(settings.dify_base_url)
+        # token = get_dify_token(db, current_user.id)
+        token = settings.dify_api_token
+        try:
+            async def forward_to_dify():
+                while True:
+                    conversation_id = ""
+                    receive_message = await websocket.receive_json()
+                    print(f"Received from client {chat_id}: {receive_message}")
+                    upload_file_id = receive_message.get('upload_file_id', [])
+                    question = receive_message.get('message', "")
+                    if not question and not image_url:
+                        await websocket.send_json({"message": "Invalid request", "type": "error"})
+                        continue
+                    try:
+                        session = SessionService(db).create_session(
+                            chat_id,
+                            question,
+                            agent_id,
+                            AgentType.DIFY,
+                            current_user.id
+                        )
+                        conversation_id = session.conversation_id
+                    except Exception as e:
+                        logger.error(e)
+                    complete_response = ""
+                    async for rag_response in dify_service.chat(token, current_user.id, question, upload_file_id, conversation_id):
                         try:
-                            if result[:5] == "data:":
+                            if rag_response[:5] == "data:":
                                 # 濡傛灉鏄紝鍒欐埅鍙栨帀鍓�5涓瓧绗︼紝骞跺幓闄ら灏剧┖鐧界
-                                text = result[5:].strip()
+                                text = rag_response[5:].strip()
                             else:
                                 # 鍚﹀垯锛屼繚鎸佸師鏍�
-                                text = result
+                                text = rag_response
+                            complete_response += text
                             try:
-                                data = json.loads(text)
-                                output = data.get("output", "")
-                                excel_name = data.get("excel_name", "")
-                                image_name = data.get("image_name", "")
-                                excel_url = None
-                                image_url = None
-                                if excel_name:
-                                    excel_url = f"/api/files/download/?agent_id=basic_excel_talk&file_id={excel_name}&file_type=excel"
-                                if image_name:
-                                    image_url = f"/api/files/download/?agent_id=basic_excel_talk&file_id={image_name}&file_type=image"
-                                result = {"message": output, "type": "message", "excel_url": excel_url, "image_url": image_url}
-                                try:
-                                    SessionService(db).update_session(chat_id,
-                                                                      message={"role": "assistant", "content": result})
-                                except Exception as e:
-                                    logger.error(e)
-                                await websocket.send_json(result | data)
+                                data = json.loads(complete_response)
+                                # data = json_data.get("data")
+                                if "answer" not in  data or not isinstance(data["answer"], dict):  # 淇℃伅杩囨护
+                                    continue
+                                else:  # 姝e父杈撳嚭
+                                    answer = data.get("answer", "")
+
+                                    result = {"message": answer, "type": "message"}
+                                    try:
+                                        SessionService(db).update_session(chat_id,
+                                                                          message={"role": "assistant", "content": data, "conversation_id": data.get("conversation_id")})
+                                    except Exception as e:
+                                        logger.error(e)
+                                await websocket.send_json(result)
+                                complete_response = ""
                             except json.JSONDecodeError as e:
                                 print(f"Error decoding JSON: {e}")
                                 # print(f"Response text: {text}")
                         except Exception as e2:
                             result = {"message": f"鍐呴儴閿欒锛� {e2}", "type": "close"}
                             await websocket.send_json(result)
-                            print(f"Error process message of basic agent: {e2}")
-        except Exception as e:
-            logger.error("----------------------------------------------fffffff")
-            logger.error(e)
-            print(e)
-            await websocket.send_json({"message": "鍑虹幇閿欒锛�", "type": "error"})
-        finally:
+                            print(f"Error process message of ragflow: {e2}")
+                    try:
+                        dialog_chat_history = await ragflow_service.get_session_history(token, chat_id, 1)
+                        await update_session_history(db, dialog_chat_history, current_user.id)
+                    except Exception as e:
+                        logger.error(e)
+                        logger.error("-----------------淇濆瓨ragflow鐨勫巻鍙蹭細璇濆紓甯�-----------------")
+
+            # 鍚姩浠诲姟澶勭悊瀹㈡埛绔秷鎭�
+            tasks = [
+                asyncio.create_task(forward_to_dify())
+            ]
+            await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
+        except WebSocketDisconnect as e1:
+            print(f"Client {chat_id} disconnected: {e1}")
             await websocket.close()
-            print(f"Client {agent_id} disconnected")
+        except Exception as e:
+            print(f"Exception occurred: {e}")
+
+        finally:
+            print("Cleaning up resources of ragflow")
+            # 鍙栨秷鎵�鏈変换鍔�
+            for task in tasks:
+                if not task.done():
+                    task.cancel()
+                    try:
+                        await task
+                    except asyncio.CancelledError:
+                        pass
     else:
         ret = {"message": "Agent not found", "type": "close"}
         await websocket.send_json(ret)

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