import json
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from Log import logger
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from app.config.agent_base_url import RG_CHAT_DIALOG, DF_CHAT_AGENT, DF_CHAT_PARAMETERS, RG_CHAT_SESSIONS, \
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DF_CHAT_WORKFLOW
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from app.config.config import settings
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from app.config.const import *
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from app.models import DialogModel, ApiTokenModel
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from app.models.v2.session_model import ChatSessionDao, ChatData
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from app.service.v2.app_driver.chat_agent import ChatAgent
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from app.service.v2.app_driver.chat_data import ChatBaseApply
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from app.service.v2.app_driver.chat_dialog import ChatDialog
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from app.service.v2.app_driver.chat_workflow import ChatWorkflow
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async def update_session_log(db, session_id: str, message: dict, conversation_id: str):
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await ChatSessionDao(db).update_session_by_id(
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session_id=session_id,
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session=None,
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message=message,
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conversation_id=conversation_id
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)
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async def add_session_log(db, session_id: str, question: str, chat_id: str, user_id, event_type: str,
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conversation_id: str):
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try:
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session = await ChatSessionDao(db).update_or_insert_by_id(
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session_id=session_id,
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name=question[:255],
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agent_id=chat_id,
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agent_type=1,
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tenant_id=user_id,
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message={"role": "user", "content": question},
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conversation_id=conversation_id,
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event_type=event_type
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)
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return session
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except Exception as e:
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logger.error(e)
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return None
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async def get_chat_token(db, app_id):
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app_token = db.query(ApiTokenModel).filter_by(app_id=app_id).first()
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if app_token:
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return app_token.token
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return ""
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async def get_chat_info(db, chat_id: str):
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return db.query(DialogModel).filter_by(id=chat_id, status=Dialog_STATSU_ON).first()
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async def get_chat_object(mode):
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if mode == workflow_chat:
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url = settings.dify_base_url + DF_CHAT_WORKFLOW
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return ChatWorkflow(), url
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else:
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url = settings.dify_base_url + DF_CHAT_AGENT
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return ChatAgent(), url
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async def service_chat_dialog(db, chat_id: str, question: str, session_id: str, user_id, mode: str):
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conversation_id = ""
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token = await get_chat_token(db, rg_api_token)
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url = settings.fwr_base_url + RG_CHAT_DIALOG.format(chat_id)
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chat = ChatDialog()
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session = await add_session_log(db, session_id, question, chat_id, user_id, mode, session_id)
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if session:
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conversation_id = session.conversation_id
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message = {"role": "assistant", "answer": "", "reference": {}}
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try:
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async for ans in chat.chat_completions(url, await chat.request_data(question, conversation_id),
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await chat.get_headers(token)):
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data = {}
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error = ""
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status = http_200
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if ans.get("code", None) == 102:
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error = ans.get("message", "error！")
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status = http_400
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event = smart_message_error
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else:
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if isinstance(ans.get("data"), bool) and ans.get("data") is True:
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event = smart_message_end
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else:
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data = ans.get("data", {})
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# conversation_id = data.get("session_id", "")
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if "session_id" in data:
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del data["session_id"]
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message = data
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event = smart_message_cover
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message_str = "data: " + json.dumps(
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{"event": event, "data": data, "error": error, "status": status, "session_id": session_id},
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ensure_ascii=False) + "\n\n"
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for i in range(0, len(message_str), max_chunk_size):
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chunk = message_str[i:i + max_chunk_size]
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# print(chunk)
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yield chunk # 发送分块消息
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except Exception as e:
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logger.error(e)
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try:
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yield "data: " + json.dumps({"message": smart_message_error,
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"error": "**ERROR**: " + str(e), "status": http_500},
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ensure_ascii=False) + "\n\n"
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except:
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...
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finally:
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await update_session_log(db, session_id, message, conversation_id)
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async def service_chat_workflow(db, chat_id: str, chat_data: ChatData, session_id: str, user_id, mode: str):
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conversation_id = ""
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answer_event = ""
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answer_agent = ""
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message_id = ""
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task_id = ""
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error = ""
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files = []
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node_list = []
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token = await get_chat_token(db, chat_id)
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chat, url = await get_chat_object(mode)
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if hasattr(chat_data, "query"):
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query = chat_data.query
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else:
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query = "start new workflow"
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session = await add_session_log(db, session_id, query, chat_id, user_id, mode, conversation_id)
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if session:
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conversation_id = session.conversation_id
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try:
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async for ans in chat.chat_completions(url,
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await chat.request_data(query, conversation_id, str(user_id), chat_data),
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await chat.get_headers(token)):
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data = {}
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status = http_200
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conversation_id = ans.get("conversation_id")
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task_id = ans.get("task_id")
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if ans.get("event") == message_error:
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error = ans.get("message", "参数异常！")
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status = http_400
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event = smart_message_error
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elif ans.get("event") == message_agent:
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data = {"answer": ans.get("answer", ""), "id": ans.get("message_id", "")}
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answer_agent += ans.get("answer", "")
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message_id = ans.get("message_id", "")
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event = smart_message_stream
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elif ans.get("event") == message_event:
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data = {"answer": ans.get("answer", ""), "id": ans.get("message_id", "")}
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answer_event += ans.get("answer", "")
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message_id = ans.get("message_id", "")
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event = smart_message_stream
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elif ans.get("event") == message_file:
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data = {"url": ans.get("url", ""), "id": ans.get("id", ""),
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"type": ans.get("type", "")}
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files.append(data)
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event = smart_message_file
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elif ans.get("event") in [workflow_started, node_started, node_finished]:
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data = ans.get("data", {})
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data["inputs"] = []
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data["outputs"] = []
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data["process_data"] = ""
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node_list.append(ans)
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event = [smart_workflow_started, smart_node_started, smart_node_finished][
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[workflow_started, node_started, node_finished].index(ans.get("event"))]
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elif ans.get("event") == workflow_finished:
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data = ans.get("data", {})
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event = smart_workflow_finished
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node_list.append(ans)
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elif ans.get("event") == message_end:
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event = smart_message_end
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else:
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continue
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yield "data: " + json.dumps(
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{"event": event, "data": data, "error": error, "status": status, "task_id": task_id,
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"session_id": session_id},
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ensure_ascii=False) + "\n\n"
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except Exception as e:
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logger.error(e)
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try:
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yield "data: " + json.dumps({"message": smart_message_error,
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"error": "**ERROR**: " + str(e), "status": http_500},
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ensure_ascii=False) + "\n\n"
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except:
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...
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finally:
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await update_session_log(db, session_id, {"role": "assistant", "answer": answer_event or answer_agent,
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"node_list": node_list, "task_id": task_id, "id": message_id,
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"error": error}, conversation_id)
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async def service_chat_basic(db, chat_id: str, question: str, session_id: str, user_id):
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...
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async def service_chat_parameters(db, chat_id, user_id):
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chat_info = db.query(DialogModel).filter_by(id=chat_id).first()
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if not chat_info:
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return {}
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return chat_info.parameters
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# if chat_info.dialog_type == RG_TYPE:
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# return {"retriever_resource":
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# {
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# "enabled": True
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# }
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# }
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# elif chat_info.dialog_type == BASIC_TYPE:
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# ...
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# elif chat_info.dialog_type == DF_TYPE:
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# token = await get_chat_token(db, chat_id)
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# if not token:
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# return {}
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# url = settings.dify_base_url + DF_CHAT_PARAMETERS
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# chat = ChatBaseApply()
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# return await chat.chat_get(url, {"user": str(user_id)}, await chat.get_headers(token))
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async def service_chat_sessions(db, chat_id, name):
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token = await get_chat_token(db, rg_api_token)
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if not token:
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return {}
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url = settings.fwr_base_url + RG_CHAT_SESSIONS.format(chat_id)
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chat = ChatDialog()
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return await chat.chat_sessions(url, {"name": name}, await chat.get_headers(token))
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