From 7305b7b9c88be497452e4dcf8b70decef0353bad Mon Sep 17 00:00:00 2001
From: zhangqian <zhangqian@123.com>
Date: 星期二, 19 十一月 2024 21:55:46 +0800
Subject: [PATCH] 发送问答消息时创建会话记录

---
 app/api/chat.py |  138 +++++++++++++++++++++++++++++++++++++++------
 1 files changed, 118 insertions(+), 20 deletions(-)

diff --git a/app/api/chat.py b/app/api/chat.py
index 7381aab..e0abd8d 100644
--- a/app/api/chat.py
+++ b/app/api/chat.py
@@ -10,8 +10,11 @@
 from app.models.agent_model import AgentModel, AgentType
 from app.models.base_model import get_db
 from app.models.user_model import UserModel
+from app.service.dialog import update_session_history
+from app.service.basic import BasicService
 from app.service.ragflow import RagflowService
-from app.service.token import get_bisheng_token, get_ragflow_token
+from app.service.service_token import get_bisheng_token, get_ragflow_token
+from app.service.session import SessionService
 
 router = APIRouter()
 
@@ -23,6 +26,7 @@
                         chat_id: str,
                         current_user: UserModel = Depends(get_current_user_websocket),
                         db: Session = Depends(get_db)):
+    tasks = []
     await websocket.accept()
     print(f"Client {agent_id} connected")
 
@@ -38,63 +42,93 @@
         return
 
     if agent_type == AgentType.RAGFLOW:
-        ragflow_service = RagflowService(settings.ragflow_base_url)
+        ragflow_service = RagflowService(settings.fwr_base_url)
         token = get_ragflow_token(db, current_user.id)
         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', [])
+                    message["role"] = "user"
                     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["message"], chat_id, True)
+                                                                             message, chat_id, True)
+                            # print("chat_history------------------------", chat_history)
                             if len(chat_history) == 0:
                                 result = {"message": "鍐呴儴閿欒锛氬垱寤轰細璇濆け璐�", "type": "close"}
                                 await websocket.send_json(result)
                                 await websocket.close()
                                 return
+                        else:
+                            chat_history.append({
+                                "content": message["message"],
+                                "doc_ids": message.get("doc_ids", []),
+                                "role": "user"
+                            })
+                    complete_response = ""
                     async for rag_response in ragflow_service.chat(token, chat_id, chat_history):
                         try:
-                            print(f"Received from ragflow: {rag_response}")
                             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 = rag_response[5:].strip()
                             else:
                                 # 鍚﹀垯锛屼繚鎸佸師鏍�
                                 text = rag_response
+                            complete_response += text
                             try:
-                                json_data = json.loads(text)
+                                json_data = json.loads(complete_response)
                                 data = json_data.get("data")
                                 if data is True:  # 瀹屾垚杈撳嚭
                                     result = {"message": "", "type": "close"}
                                 elif data is None:  # 鍙戠敓閿欒
                                     answer = json_data.get("retmsg", json_data.get("retcode"))
-                                    result = {"message": "鍐呴儴閿欒锛�" + answer, "type": "stream"}
+                                    result = {"message": "鍐呴儴閿欒锛�" + answer, "type": "message"}
                                 else:  # 姝e父杈撳嚭
                                     answer = data.get("answer", "")
-                                    result = {"message": answer, "type": "stream"}
-                            except json.JSONDecodeError:
-                                result = {"message": text, "type": "stream"}
+                                    reference = data.get("reference", {})
+                                    result = {"message": answer, "type": "message", "reference": reference}
+                                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"Forwarded to client {chat_id}: {result}")
-                        except Exception as e:
-                            result = {"message": f"鍐呴儴閿欒锛� {e}", "type": "close"}
-                            await websocket.send_json(result)
-                            print(f"Error process message of ragflow: {e}")
+                            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)
+
             # 鍚姩浠诲姟澶勭悊瀹㈡埛绔秷鎭�
             tasks = [
                 asyncio.create_task(forward_to_ragflow())
             ]
             await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
-        except WebSocketDisconnect:
-            print(f"Client {chat_id} disconnected")
+        except WebSocketDisconnect as e1:
+            print(f"Client {chat_id} disconnected: {e1}")
+            await websocket.close()
+        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
 
     elif agent_type == AgentType.BISHENG:
         token = get_bisheng_token(db, current_user.id)
-        service_uri = f"{settings.bisheng_websocket_url}/api/v1/assistant/chat/{agent_id}?t=&chat_id={chat_id}"
+        service_uri = f"{settings.sgb_websocket_url}/api/v1/assistant/chat/{agent_id}?t=&chat_id={chat_id}"
         headers = {'cookie': f"access_token_cookie={token};"}
 
         async with websockets.connect(service_uri, extra_headers=headers) as service_websocket:
@@ -147,9 +181,73 @@
                     except asyncio.CancelledError:
                         pass
 
-            except WebSocketDisconnect:
-                print(f"Client {chat_id} disconnected")
+            except WebSocketDisconnect as e:
+                print(f"WebSocket connection closed with code {e.code}: {e.reason}")
+                await websocket.close()
+                await service_websocket.close()
+            except Exception as e:
+                print(f"Exception occurred: {e}")
+
+            finally:
+                print("Cleaning up resources of bisheng")
+                # 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
+    elif agent_type == AgentType.BASIC:
+        try:
+            while True:
+                # 鎺ユ敹鍓嶇娑堟伅
+                message = await websocket.receive_json()
+                question = message.get("message")
+                SessionService(db).create_session(
+                    session_id=chat_id,
+                    name=question,
+                    agent_id=agent_id,
+                    agent_type=AgentType.BASIC
+                )
+                if not question:
+                    await websocket.send_json({"message": "Invalid request", "type": "error"})
+                    continue
+
+                service = BasicService(base_url=settings.basic_base_url)
+                async for result in service.excel_talk(question, chat_id):
+                    try:
+                        if result[: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()
+                        else:
+                            # 鍚﹀垯锛屼繚鎸佸師鏍�
+                            text = result
+                        try:
+                            data = json.loads(text)
+                            output = data.get("output", "")
+                            excel_name = data.get("excel_name", "")
+                            image_name = data.get("excel_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}
+                            await websocket.send_json(result | data)
+                        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:
+            await websocket.send_json({"message": str(e), "type": "error"})
+        finally:
+            await websocket.close()
+            print(f"Client {agent_id} disconnected")
     else:
         ret = {"message": "Agent not found", "type": "close"}
         await websocket.send_json(ret)
-

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