From 88d47a7ba689114a58c07d0d80318ff22ca67711 Mon Sep 17 00:00:00 2001
From: zhangqian <zhangqian@123.com>
Date: 星期四, 21 十一月 2024 16:28:38 +0800
Subject: [PATCH] Merge branch 'master' of http://192.168.5.5:10010/r/rag-gateway

---
 app/api/chat.py |  249 +++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 209 insertions(+), 40 deletions(-)

diff --git a/app/api/chat.py b/app/api/chat.py
index 471a4e6..11af093 100644
--- a/app/api/chat.py
+++ b/app/api/chat.py
@@ -5,17 +5,20 @@
 import asyncio
 import websockets
 from sqlalchemy.orm import Session
+
+from Log import logger
 from app.api import get_current_user_websocket
 from app.config.config import settings
+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()
-
-# 瀛樺偍瀹㈡埛绔� WebSocket 杩炴帴
-client_websockets = {}
 
 
 # 涓棿灞俉ebSocket 鏈嶅姟鍣紝鎺ユ敹瀹㈡埛绔殑杩炴帴
@@ -25,54 +28,109 @@
                         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")
 
-    if agent_id == "0":
-        agent_id = settings.bisheng_agent_id
-    elif agent_id == "1":
-        agent_id = settings.ragflow_agent_id
-        chat_id = settings.ragflow_chat_id
+    agent = db.query(AgentModel).filter(AgentModel.id == agent_id).first()
+    if not agent:
+        ret = {"message": "Agent not found", "type": "close"}
+        await websocket.send_json(ret)
+        return
+    agent_type = agent.agent_type
+    if chat_id == "" or chat_id == "0":
+        ret = {"message": "Chat ID not found", "type": "close"}
+        await websocket.send_json(ret)
+        return
 
-    if chat_id == "0":
-        chat_id = uuid.uuid4().hex
-
-    client_websockets[chat_id] = websocket
-    if agent_id == settings.ragflow_agent_id:
-        ragflow_service = RagflowService(settings.ragflow_base_url)
+    if agent_type == AgentType.RAGFLOW:
+        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}")
-                    async for rag_response in ragflow_service.chat(token, chat_id, message["chatHistory"]):
+                    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, 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}")
-                            json_str = rag_response[5:].strip()
-                            json_data = json.loads(json_str)
-                            if json_data.get("data") is not True:
-                                answer = json_data.get("data", {}).get("answer", "")
-                                result = {"message": answer, "type": "stream"}
+                            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:
-                                result = {"message": "", "type": "close"}
+                                # 鍚﹀垯锛屼繚鎸佸師鏍�
+                                text = rag_response
+                            complete_response += text
+                            try:
+                                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": "message"}
+                                else:  # 姝e父杈撳嚭
+                                    answer = data.get("answer", "")
+                                    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:
-                            print(f"Error forwarding message to 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")
-        finally:
-            del client_websockets[chat_id]
+        except WebSocketDisconnect as e1:
+            print(f"Client {chat_id} disconnected: {e1}")
+            await websocket.close()
+        except Exception as e:
+            print(f"Exception occurred: {e}")
 
-    else:
+        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:
@@ -82,7 +140,7 @@
                 async def forward_to_service():
                     while True:
                         message = await websocket.receive_json()
-                        print(f"Received from client {chat_id}: {message}")
+                        print(f"Received from client, {chat_id}: {message}")
                         # 娣诲姞 'agent_id' 鍜� 'chat_id' 瀛楁
                         message['flow_id'] = agent_id
                         message['chat_id'] = chat_id
@@ -99,9 +157,16 @@
                 async def forward_to_client():
                     while True:
                         message = await service_websocket.recv()
-                        print(f"Received from service S: {message}")
-                        await websocket.send_text(message)
-                        print(f"Forwarded to client {chat_id}: {message}")
+                        print(f"Received from bisheng: {message}")
+                        data = json.loads(message)
+                        if data["type"] == "close" or data["type"] == "stream" or data["type"] == "end_cover":
+                            if data["type"] == "close":
+                                t = "close"
+                            else:
+                                t = "stream"
+                            result = {"message": data["message"], "type": t}
+                            await websocket.send_json(result)
+                            print(f"Forwarded to client, {chat_id}: {result}")
 
                 # 鍚姩涓や釜浠诲姟锛屽垎鍒鐞嗗鎴风鍜屾湇鍔$鐨勬秷鎭�
                 tasks = [
@@ -118,9 +183,113 @@
                     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:
-                del client_websockets[chat_id]
+                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:
+            service = BasicService(base_url=settings.basic_base_url)
+            while True:
+                # 鎺ユ敹鍓嶇娑堟伅
+                message = await websocket.receive_json()
+                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
+                    )
+                except Exception as e:
+                    logger.error(e)
+                if not question:
+                    await websocket.send_json({"message": "Invalid request", "type": "error"})
+                    continue
+                if agent.agent_type == "questionTalk":
+                    async for result in service.questions_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", "")
+                                file_name = data.get("filename", "")
 
-
+                                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}
+                                try:
+                                    SessionService(db).update_session(session_id=chat_id, is_incr=1,
+                                                                      message={"role": "assistant", "content": result})
+                                except Exception as e:
+                                    logger.error(e)
+                                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}")
+                else:
+                    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("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(session_id=chat_id, is_incr=1,
+                                                                      message={"role": "assistant", "content": result})
+                                except Exception as e:
+                                    logger.error(e)
+                                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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