youhua

zhaoqingang

2024-11-21 95d2318cd8fe7f39a9786fe9a8088440b081b295

 app/api/chat.py

@@ -5,13 +5,18 @@
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.service_token import get_bisheng_token, get_ragflow_token
from app.service.session import SessionService

router = APIRouter()

@@ -44,6 +49,7 @@
        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', [])
@@ -51,9 +57,10 @@
                    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)
                            # print("chat_history------------------------", chat_history)
                            if len(chat_history) == 0:
                                result = {"message": "内部错误：创建会话失败", "type": "close"}
                                await websocket.send_json(result)
@@ -91,11 +98,14 @@
                                complete_response = ""
                            except json.JSONDecodeError as e:
                                print(f"Error decoding JSON: {e}")
                                print(f"Response text: {text}")
                                # print(f"Response text: {text}")
                        except Exception as e2:
                            result = {"message": f"内部错误： {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)

            # 启动任务处理客户端消息
            tasks = [
                asyncio.create_task(forward_to_ragflow())
@@ -190,6 +200,96 @@
                            await task
                        except asyncio.CancelledError:
                            pass
    elif agent_type == AgentType.BASIC:
        try:
            service = BasicService(base_url=settings.basic_base_url)
            while True:
                # 接收前端消息
                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:":
                                # 如果是，则截取掉前5个字符，并去除首尾空白符
                                text = result[5:].strip()
                            else:
                                # 否则，保持原样
                                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"内部错误： {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:":
                                # 如果是，则截取掉前5个字符，并去除首尾空白符
                                text = result[5:].strip()
                            else:
                                # 否则，保持原样
                                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"内部错误： {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)