rag-gateway
blame | 历史 | 补丁 | 提交 | 提交对比 | ignore whitespace
zhaoqingang
2025-04-08 0650b889a36d9b9fd42415b9b9819676f839ae9b 
 app/api/v2/chat.py


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import json


import uuid




from typing import List


from fastapi import Depends, APIRouter, File, UploadFile


from sqlalchemy.orm import Session


from starlette.responses import StreamingResponse, Response


from app.api import get_current_user, get_api_key


from app.config.const import smart_message_error, http_400, http_500, http_200, complex_dialog_chat, \


    complex_knowledge_chat_deep, complex_knowledge_chat


from app.models import UserModel


from app.models.base_model import get_db


from app.models.v2.chat import RetrievalRequest, ChatDataRequest, ComplexChatDao, SetModelRequest


from app.models.v2.session_model import ChatData


from app.service.v2.chat import service_chat_dialog, get_chat_info, service_chat_basic, \


    service_chat_workflow, service_chat_parameters, service_chat_sessions, service_chat_upload, \


    service_chat_sessions_list, service_chat_session_log, service_chunk_retrieval, service_complex_chat, \


    service_complex_upload, service_complex_model, service_get_complex_model




chat_router_v2 = APIRouter()




# 对话


@chat_router_v2.post("/chat/{chatId}/completions")


async def api_chat_dialog(chatId:str, dialog: ChatData, current_user: UserModel = Depends(get_current_user),db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    chat_info = await get_chat_info(db, chatId)


    if not chat_info:


        error_msg = json.dumps(


            {"message": smart_message_error, "error": "\n**ERROR**: parameter exception", "status": http_400})


        return StreamingResponse(f"data: {error_msg}\n\n",


                                 media_type="text/event-stream")


    session_id = dialog.sessionId


    if not dialog.query:


        error_msg = json.dumps(


            {"message": smart_message_error, "error": "\n**ERROR**: question cannot be empty.", "status": http_400})


        return StreamingResponse(f"data: {error_msg}\n\n",


                                 media_type="text/event-stream")


    if not session_id:


        session = await service_chat_sessions(db, chatId, dialog.query)


        # print(session)


        if not session or session.get("code") != 0:


            error_msg = json.dumps(


                {"message": smart_message_error, "error": "\n**ERROR**: chat agent error", "status": http_500})


            return StreamingResponse(f"data: {error_msg}\n\n",


                                     media_type="text/event-stream")


        session_id = session.get("data", {}).get("id")


    return StreamingResponse(service_chat_dialog(db, chatId, dialog.query, session_id, current_user.id, chat_info.mode, chat_info.get_kb_ids()),


                             media_type="text/event-stream")




@chat_router_v2.post("/agent/{chatId}/completions")


async def api_chat_dialog(chatId:str, dialog: ChatData, current_user: UserModel = Depends(get_current_user),db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    chat_info = await get_chat_info(db, chatId)


    if not chat_info:


        error_msg = json.dumps(


            {"message": smart_message_error, "error": "\n**ERROR**: parameter exception", "status": http_400})


        return StreamingResponse(f"data: {error_msg}\n\n",


                                 media_type="text/event-stream")


    session_id = dialog.sessionId


    if not session_id:


        session_id = str(uuid.uuid4()).replace("-", "")


    return StreamingResponse(service_chat_workflow(db, chatId, dialog, session_id, current_user.id, chat_info.mode),


                             media_type="text/event-stream")






@chat_router_v2.post("/workflow/{chatId}/completions")


async def api_chat_dialog(chatId:str, dialog: ChatData, current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    chat_info = await get_chat_info(db, chatId)


    if not chat_info:


        error_msg = json.dumps(


            {"message": smart_message_error, "error": "\n**ERROR**: parameter exception", "status": http_400})


        return StreamingResponse(f"data: {error_msg}\n\n",


                                 media_type="text/event-stream")


    session_id = dialog.sessionId


    if not session_id:


        session_id = str(uuid.uuid4()).replace("-", "")


    return StreamingResponse(service_chat_workflow(db, chatId, dialog, session_id, current_user.id, chat_info.mode),


                             media_type="text/event-stream")






@chat_router_v2.post("/develop/{chatId}/completions")


async def api_chat_dialog(chatId:str, dialog: ChatData, current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    chat_info = await get_chat_info(db, chatId)


    if not chat_info:


        error_msg = json.dumps(


            {"message": smart_message_error, "error": "\n**ERROR**: parameter exception", "status": http_400})


        return StreamingResponse(f"data: {error_msg}\n\n",


                                 media_type="text/event-stream")


    session_id = dialog.sessionId


    if not session_id:


        session_id = str(uuid.uuid4()).replace("-", "")






    return StreamingResponse(service_chat_basic(db, chatId, dialog, session_id, current_user.id, chat_info.mode),


                             media_type="text/event-stream")








@chat_router_v2.get("/chat/{chatId}/parameters")


async def api_chat_parameters(chatId:str, current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    status_code = http_200


    data = await service_chat_parameters(db, chatId, current_user.id)


    if not data:


        status_code = http_400


        data = json.dumps({"code": http_400})


    return Response(data, media_type="application/json", status_code=status_code)






@chat_router_v2.post("/{chatId}/upload")


async def api_chat_upload(chatId:str, file: List[UploadFile] = File(...), current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    status_code = http_200


    data = await service_chat_upload(db, chatId, file, current_user.id)


    if not data:


        status_code = http_400


        data = "{}"


    return Response(data, media_type="application/json", status_code=status_code)








@chat_router_v2.get("/chat/sessions")


async def api_chat_sessions(chatId:str, current:int=1, pageSize:int=100, keyword:str="", current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    data = await service_chat_sessions_list(db, chatId, current, pageSize, current_user.id, keyword)


    return Response(data, media_type="application/json", status_code=http_200)






@chat_router_v2.get("/chat/session_log")


async def api_chat_sessions(sessionId:str, current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    data = await service_chat_session_log(db, sessionId)


    return Response(data, media_type="application/json", status_code=http_200)






@chat_router_v2.post("/retrieval")


async def retrieve_chunks(request_data: RetrievalRequest, api_key: str = Depends(get_api_key)):


    records = await service_chunk_retrieval(request_data.query, request_data.knowledge_id, request_data.retrieval_setting.top_k, request_data.retrieval_setting.score_threshold, api_key)


    return {"records": records}






@chat_router_v2.post("/complex/chat/completions")


async def api_complex_chat_completions(chat: ChatDataRequest, current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    # chat_mode = chat.chatMode


    if chat.isDeep == 2 and chat.chatMode == complex_knowledge_chat:


        chat.chatMode = complex_knowledge_chat_deep


    complex_chat = await ComplexChatDao(db).get_complex_chat_by_mode(chat.chatMode)


    if complex_chat:


        if not chat.sessionId:


            chat.sessionId = str(uuid.uuid4()).replace("-", "")


        return StreamingResponse(service_complex_chat(db, complex_chat.id, complex_chat.mode, current_user.id, chat),


                                 media_type="text/event-stream")


    else:


        error_msg = json.dumps(


            {"message": smart_message_error, "error": "\n**ERROR**: 网络异常，无法生成对话结果！", "status": http_500})


        return StreamingResponse(f"data: {error_msg}\n\n",


                                 media_type="text/event-stream")






@chat_router_v2.post("/complex/upload/{chatMode}")


async def api_complex_upload(chatMode:int, file: List[UploadFile] = File(...), current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    status_code = http_200


    complex_chat = await ComplexChatDao(db).get_complex_chat_by_mode(chatMode)


    if complex_chat:


        data = await service_complex_upload(db, complex_chat.id, file, current_user.id)


        if not data:


            status_code = http_400


            data = "{}"


    else:


        status_code = http_500


        data = "{}"


    return Response(data, media_type="application/json", status_code=status_code)






@chat_router_v2.put("/complex/model")


async def api_complex_model(chatModel:SetModelRequest, current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    status_code = http_200


    data = await service_complex_model(db, chatModel.chatType, chatModel.modelType, chatModel.modelName, chatModel.modelProvider)


    if data:


        status_code = http_500


    return Response(data, media_type="application/json", status_code=status_code)






@chat_router_v2.get("/complex/model")


async def api_get_complex_model(current_user: UserModel = Depends(get_current_user), db: Session = Depends(get_db)): #  current_user: UserModel = Depends(get_current_user)


    status_code = http_200


    data = await service_get_complex_model(db)


    if data:


        status_code = http_500


    return Response(data, media_type="application/json", status_code=status_code)