LQAgentPlatform/views/test_views.py

# ！/usr/bin/ python
# -*- coding: utf-8 -*-
'''
@Project    : lq-agent-api
@File       :cattle_farm_views.py
@IDE        :PyCharm
@Author     :
@Date       :2025/7/10 17:32
'''
import json
from typing import Optional

from fastapi import Depends, Response, Header
from sse_starlette import EventSourceResponse
from starlette.responses import JSONResponse

from agent.test_agent import test_agent_client
from agent.generate.model_generate import test_generate_model_client
from logger.loggering import server_logger
from schemas.test_schemas import TestForm
from utils.common import return_json, handler_err
from views import test_router, get_operation_id
from agent.workflow.test_workflow_graph import test_workflow_graph




@test_router.post("/generate/chat", response_model=TestForm)
async def generate_chat_endpoint(
        param: TestForm,
        trace_id: str = Depends(get_operation_id)):
    """
        生成类模型
    """
    try:
        server_logger.info(trace_id=trace_id, msg=f"{param}")

        # 从字典中获取input
        input_query = param.input
        session_id = param.config.session_id
        context = param.context
        header_info = {
        }
        task_prompt_info = {"task_prompt": ""}
        output = test_generate_model_client.get_model_generate_invoke(trace_id , task_prompt_info, 
                                                                                 input_query, context)
        # 直接执行
        server_logger.debug(trace_id=trace_id, msg=f"【result】: {output}", log_type="agent/chat")
        # 返回字典格式的响应
        return JSONResponse(
            return_json(data={"output": output}, data_type="text", trace_id=trace_id))

    except ValueError as err:
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="generate/stream")
        return JSONResponse(return_json(code=100500, msg=f"{err}", trace_id=trace_id))

    except Exception as err:
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="generate/stream")
        return JSONResponse(return_json(code=100500, msg=f"{err}", trace_id=trace_id))


@test_router.post("/generate/stream", response_model=TestForm)
async def generate_stream_endpoint(
        param: TestForm,
        trace_id: str = Depends(get_operation_id)):
    """
        生成类模型
    """
    try:
        server_logger.info(trace_id=trace_id, msg=f"{param}")

        # 从字典中获取input
        input_query = param.input
        session_id = param.config.session_id
        context = param.context
        header_info = {
        }
        task_prompt_info = {"task_prompt": ""}
        # 创建 SSE 流式响应
        async def event_generator():
            try:
                # 流式处理查询 trace_id, task_prompt_info: dict, input_query, context=None
                for chunk in test_generate_model_client.get_model_generate_stream(trace_id , task_prompt_info, 
                                                                                 input_query, context):
                    # 发送数据块
                    yield {
                        "event": "message",
                        "data": json.dumps({
                            "output": chunk,
                            "completed": False,
                        }, ensure_ascii=False)
                    }
                     # 获取缓存数据
                result_data = {}
                # 发送结束事件
                yield {
                    "event": "message_end",
                    "data": json.dumps({
                        "completed": True,
                        "message": json.dumps(result_data, ensure_ascii=False),
                        "code": 0,
                        "trace_id": trace_id,
                    }, ensure_ascii=False),
                }
            except Exception as e:
                # 错误处理
                yield {
                    "event": "error",
                    "data": json.dumps({
                        "trace_id": trace_id,
                        "message": str(e),
                        "code": 1
                    }, ensure_ascii=False)
                }
            finally:
                # 不需要关闭客户端，因为它是单例
                pass
        # 返回 SSE 响应
        return EventSourceResponse(
            event_generator(),
            headers={
                "Cache-Control": "no-cache",
                "Connection": "keep-alive"
            }
        )
    except ValueError as err:
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="generate/stream")
        return JSONResponse(return_json(code=100500, msg=f"{err}", trace_id=trace_id))

    except Exception as err:
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="generate/stream")
        return JSONResponse(return_json(code=100500, msg=f"{err}", trace_id=trace_id))

# 路由

@test_router.post("/agent/chat", response_model=TestForm)
async def chat_endpoint(
        param: TestForm,
        trace_id: str = Depends(get_operation_id)):
    """
    根据场景获取智能体反馈
    """

    try:
        server_logger.info(trace_id=trace_id, msg=f"{param}")
        # 验证参数

        # 从字典中获取input
        input_data = param.input
        session_id = param.config.session_id
        context = param.context
        header_info = {
        }
        task_prompt_info = {"task_prompt": ""}
  
        # stream 流式执行
        output = await test_agent_client.handle_query(trace_id  , task_prompt_info, input_data, context, param.config)
        # 直接执行
        server_logger.debug(trace_id=trace_id, msg=f"【result】: {output}", log_type="agent/chat")
        # 返回字典格式的响应
        return JSONResponse(
            return_json(data={"output": output}, data_type="text", trace_id=trace_id))
    except ValueError as err:
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="agent/chat")
        return JSONResponse(return_json(code=100500, msg=f"{err}", trace_id=trace_id))

    except Exception as err:
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="agent/chat")
        return JSONResponse(return_json(code=100500, msg=f"{err}", trace_id=trace_id))


@test_router.post("/agent/stream", response_class=Response)
async def chat_agent_stream(param: TestForm,
                     trace_id: str = Depends(get_operation_id)):
    """
    根据场景获取智能体反馈 (SSE流式响应)
    """
    try:
        server_logger.info(trace_id=trace_id, msg=f"{param}")

       
        # 提取参数
        input_data = param.input
        context = param.context
        header_info = {
          
        }
        task_prompt_info = {"task_prompt": ""}
          # 如果business_scene为None，则使用大模型进行意图识别

        server_logger.info(trace_id=trace_id, msg=f"{param}")
        # 创建 SSE 流式响应
        async def event_generator():
            try:
                # 流式处理查询
                async for chunk in test_agent_client.handle_query_stream(
                        trace_id=trace_id,
                        config_param=param.config,
                        task_prompt_info=task_prompt_info,
                        input_query=input_data,
                        context=context,
                        header_info=header_info
                ):
                    server_logger.debug(trace_id=trace_id, msg=f"{chunk}")
                    # 发送数据块
                    yield {
                        "event": "message",
                        "data": json.dumps({
                            "code": 0,
                            "output": chunk,
                            "completed": False,
                            "trace_id": trace_id,
                        }, ensure_ascii=False)
                    }
                # 获取缓存数据
                result_data = {}
                # 发送结束事件
                yield {
                    "event": "message_end",
                    "data": json.dumps({
                        "completed": True,
                        "message": json.dumps(result_data, ensure_ascii=False),
                        "code": 0,
                        "trace_id": trace_id,
                    }, ensure_ascii=False),
                }
            except Exception as e:
                # 错误处理
                yield {
                    "event": "error",
                    "data": json.dumps({
                        "trace_id": trace_id,
                        "message": str(e),
                        "code": 1
                    }, ensure_ascii=False)
                }
            finally:
                # 不需要关闭客户端，因为它是单例
                pass

        # 返回 SSE 响应
        return EventSourceResponse(
            event_generator(),
            headers={
                "Cache-Control": "no-cache",
                "Connection": "keep-alive"
            }
        )

    except Exception as err:
        # 初始错误处理
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="agent/stream")
        return JSONResponse(
            return_json(code=1, msg=f"{err}", trace_id=trace_id),
            status_code=500
        )



@test_router.post("/graph/stream", response_class=Response)
async def chat_graph_stream(param: TestForm,
                     trace_id: str = Depends(get_operation_id)):
    """
        根据场景获取智能体反馈 (SSE流式响应)
    """
    try:
        server_logger.info(trace_id=trace_id, msg=f"{param}")
        # request_param = {
        #     "input": param.input,
        #     "config": param.config,
        #     "context": param.context
        # }
        # 创建 SSE 流式响应 
        async def event_generator():
                try:
                    # 流式处理查询
                    async for chunk in test_workflow_graph.handle_query_stream(
                            param=param,
                            trace_id=trace_id,
                    ):
                        server_logger.debug(trace_id=trace_id, msg=f"{chunk}")
                        # 发送数据块
                        yield {
                            "event": "message",
                            "data": json.dumps({
                                "code": 0,
                                "output": chunk,
                                "completed": False,
                                "trace_id": trace_id,
                                "dataType": "text"
                            }, ensure_ascii=False)
                        }

                    # 发送结束事件
                    yield {
                        "event": "message_end",
                        "data": json.dumps({
                            "completed": True,
                            "message": "Stream completed",
                            "code": 0,
                            "trace_id": trace_id,
                            "dataType": "text"
                        }, ensure_ascii=False),
                    }
                except Exception as e:
                    # 错误处理
                    yield {
                        "event": "error",
                        "data": json.dumps({
                            "trace_id": trace_id,
                            "msg": str(e),
                            "code": 1,
                            "dataType": "text"
                        }, ensure_ascii=False)
                    }
                finally:
                    # 不需要关闭客户端，因为它是单例
                    pass

        # 返回 SSE 响应
        return EventSourceResponse(
            event_generator(),
            headers={
                "Cache-Control": "no-cache",
                "Connection": "keep-alive"
            }
        )
        
    except Exception as err:
        # 初始错误处理
        handler_err(server_logger, trace_id=trace_id, err=err, err_name="graph/stream")
        return JSONResponse(
            return_json(code=1, msg=f"{err}", trace_id=trace_id),
            status_code=500
        )