rag-gateway/app/api/agent.py

import json
import uuid

from fastapi import Depends, APIRouter, Query, HTTPException
from fastapi.responses import JSONResponse
from pydantic import BaseModel
from sqlalchemy.orm import Session

from app.api import Response, get_current_user, ResponseList
from app.config.config import settings
from app.models.agent_model import AgentType, AgentModel
from app.models.base_model import get_db
from app.models.session_model import SessionModel
from app.models.user_model import UserModel
from app.service.bisheng import BishengService
from app.service.dialog import get_session_history
from app.service.ragflow import RagflowService
from app.service.service_token import get_ragflow_token, get_bisheng_token

router = APIRouter()


@router.get("/list", response_model=ResponseList)
async def agent_list(db: Session = Depends(get_db)):
    agents = db.query(AgentModel).order_by(AgentModel.sort.asc()).all()
    result = [item.to_dict() for item in agents]
    return ResponseList(code=200, msg="", data=result)


@router.get("/{agent_id}/sessions", response_model=ResponseList)
async def chat_list(
        agent_id: str,
        page: int = Query(1, ge=1),
        limit: int = Query(1000, ge=1, le=1000),
        db: Session = Depends(get_db),
        current_user: UserModel = Depends(get_current_user)):
    agent = db.query(AgentModel).filter(AgentModel.id == agent_id).first()
    if not agent:
        return ResponseList(code=404, msg="Agent not found")

    if agent.agent_type == AgentType.RAGFLOW:
        ragflow_service = RagflowService(base_url=settings.fwr_base_url)
        try:
            token = get_ragflow_token(db, current_user.id)
            result = await ragflow_service.get_chat_sessions(token, agent_id)
            if not result:
                result = await get_session_history(db, current_user.id, agent_id)
        except Exception as e:
            raise HTTPException(status_code=500, detail=str(e))
        return ResponseList(code=200, msg="", data=result)

    elif agent.agent_type == AgentType.BISHENG:
        bisheng_service = BishengService(base_url=settings.sgb_base_url)
        try:
            token = get_bisheng_token(db, current_user.id)
            result = await bisheng_service.get_chat_sessions(token, page, limit)
        except Exception as e:
            raise HTTPException(status_code=500, detail=str(e))
        return ResponseList(code=200, msg="", data=result)

    elif agent.agent_type == AgentType.BASIC:
        offset = (page - 1) * limit
        records = db.query(SessionModel).filter(SessionModel.agent_id == agent_id, SessionModel.tenant_id==current_user.id).order_by(SessionModel.create_date.desc()).offset(offset).limit(limit).all()
        result = [item.to_dict() for item in records]
        return ResponseList(code=200, msg="", data=result)

    else:
        return ResponseList(code=200, msg="Unsupported agent type")


@router.get("/{agent_id}/{conversation_id}/session_log")
async def session_log(agent_id: str, conversation_id: str, db: Session = Depends(get_db), current_user: UserModel = Depends(get_current_user)):
    agent = db.query(AgentModel).filter(AgentModel.id == agent_id).first()
    if not agent:
        return Response(code=404, msg="Agent not found")

    if agent.agent_type == AgentType.RAGFLOW:
        ragflow_service = RagflowService(base_url=settings.fwr_base_url)
        try:
            token = get_ragflow_token(db, current_user.id)
            result = await ragflow_service.get_session_log(token, conversation_id)
            if 'session_log' in result and 'reference' in result:
                combined_logs = []
                last_question = None
                references = result['reference']
                reference_index = 0
                for session in result['session_log']:
                    if session['role'] == 'user':
                        last_question = session['message']
                    elif session['role'] == 'assistant' and last_question:
                        if reference_index < len(references):
                            reference = references[reference_index]
                        else:
                            reference = None
                        combined_logs.append({
                            'question': last_question,
                            'answer': session['message'],
                            'reference': reference
                        })
                        last_question = None
                        reference_index += 1
                return JSONResponse(status_code=200, content={"code": 200, "data": combined_logs})
            else:

                return JSONResponse(status_code=200, content={"code": 400, "message": "Invalid result structure"})
        except Exception as e:
            raise HTTPException(status_code=500, detail=str(e))
    elif agent.agent_type == AgentType.BISHENG:
        bisheng_service = BishengService(base_url=settings.sgb_base_url)
        try:
            token = get_bisheng_token(db, current_user.id)
            result = await bisheng_service.get_session_log(token, agent_id, conversation_id)
            combined_logs = []
            last_question = None

            for session in result:
                message = session['message']

                # 判断message是字符串还是json 对象,如果是json取其中的question字段，或者report_name字段赋值给message
                try:
                    message_json = json.loads(message)
                    if 'question' in message_json:
                        message = message_json['question']
                    elif 'query' in message_json:
                        message = message_json['query']
                    elif 'report_name' in message_json:
                        message = message_json['report_name']
                except json.JSONDecodeError:
                    pass

                if session['role'] == 'question':
                    last_question = message
                elif session['role'] == 'answer' and last_question:
                    combined_logs.append({
                        'question': last_question,
                        'answer': message
                    })
                    last_question = None
            return JSONResponse(status_code=200, content={"code": 200, "data": combined_logs})
        except Exception as e:
            raise HTTPException(status_code=500, detail=str(e))
    elif agent.agent_type == AgentType.BASIC:
        session = db.query(SessionModel).filter(SessionModel.id == conversation_id).first()
        return JSONResponse(status_code=200, content={"code": 200, "data": session.log_to_json() if session else {}})
    else:
        return JSONResponse(status_code=200, content={"code": 200, "log": "Unsupported agent type"})


@router.get("/get-chat-id/{agent_id}", response_model=Response)
async def get_chat_id(agent_id: str, db: Session = Depends(get_db)):
    agent = db.query(AgentModel).filter(AgentModel.id == agent_id).first()
    if not agent:
        return Response(code=404, msg="Agent not found")

    return Response(code=200, msg="", data={"chat_id": uuid.uuid4().hex})