application_serializers.py

# coding=utf-8
"""
    @project: maxkb
    @Author：虎
    @file： application_serializers.py
    @date：2023/11/7 10:02
    @desc:
"""
import asyncio
import datetime
import hashlib
import json
import os
import pickle
import re
import uuid
from functools import reduce
from typing import Dict, List
from django.contrib.postgres.fields import ArrayField
from django.core import cache, validators
from django.core import signing
from django.db import transaction, models
from django.db.models import QuerySet
from django.db.models.expressions import RawSQL
from django.http import HttpResponse
from django.template import Template, Context
from langchain_mcp_adapters.client import MultiServerMCPClient
from mcp.client.sse import sse_client
from rest_framework import serializers, status
from rest_framework.utils.formatting import lazy_format

from application.flow.workflow_manage import Flow
from application.models import Application, ApplicationDatasetMapping, ApplicationTypeChoices, WorkFlowVersion
from application.models.api_key_model import ApplicationAccessToken, ApplicationApiKey
from common.cache_data.application_access_token_cache import get_application_access_token, del_application_access_token
from common.cache_data.application_api_key_cache import del_application_api_key, get_application_api_key
from common.config.embedding_config import VectorStore
from common.constants.authentication_type import AuthenticationType
from common.db.search import get_dynamics_model, native_search, native_page_search
from common.db.sql_execute import select_list
from common.exception.app_exception import AppApiException, NotFound404, AppUnauthorizedFailed, ChatException
from common.field.common import UploadedImageField, UploadedFileField
from common.models.db_model_manage import DBModelManage
from common.response import result
from common.util.common import valid_license, password_encrypt, restricted_loads
from common.util.field_message import ErrMessage
from common.util.file_util import get_file_content
from dataset.models import DataSet, Document, Image
from dataset.serializers.common_serializers import list_paragraph, get_embedding_model_by_dataset_id_list
from embedding.models import SearchMode
from function_lib.models.function import FunctionLib, PermissionType, FunctionType
from function_lib.serializers.function_lib_serializer import FunctionLibSerializer, FunctionLibModelSerializer
from setting.models import AuthOperate, TeamMemberPermission
from setting.models.model_management import Model
from setting.models_provider import get_model_credential
from setting.models_provider.tools import get_model_instance_by_model_user_id
from setting.serializers.provider_serializers import ModelSerializer
from smartdoc.conf import PROJECT_DIR
from users.models import User
from django.utils.translation import gettext_lazy as _, get_language, to_locale

chat_cache = cache.caches['chat_cache']


class MKInstance:

    def __init__(self, application: dict, function_lib_list: List[dict], version: str):
        self.application = application
        self.function_lib_list = function_lib_list
        self.version = version


class ModelDatasetAssociation(serializers.Serializer):
    user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))
    model_id = serializers.CharField(required=False, allow_null=True, allow_blank=True,
                                     error_messages=ErrMessage.char(_("Model id")))
    dataset_id_list = serializers.ListSerializer(required=False, child=serializers.UUIDField(required=True,
                                                                                             error_messages=ErrMessage.uuid(
                                                                                                 _("Knowledge base id"))),
                                                 error_messages=ErrMessage.list(_("Knowledge Base List")))

    def is_valid(self, *, raise_exception=True):
        super().is_valid(raise_exception=True)
        model_id = self.data.get('model_id')
        user_id = self.data.get('user_id')
        if model_id is not None and len(model_id) > 0:
            if not QuerySet(Model).filter(id=model_id).exists():
                raise AppApiException(500, f'{_("Model does not exist")}【{model_id}】')
        dataset_id_list = list(set(self.data.get('dataset_id_list')))
        exist_dataset_id_list = [str(dataset.id) for dataset in
                                 QuerySet(DataSet).filter(id__in=dataset_id_list, user_id=user_id)]
        for dataset_id in dataset_id_list:
            if not exist_dataset_id_list.__contains__(dataset_id):
                raise AppApiException(500, f'{_("The knowledge base id does not exist")}【{dataset_id}】')


class ApplicationSerializerModel(serializers.ModelSerializer):
    class Meta:
        model = Application
        fields = "__all__"


class NoReferencesChoices(models.TextChoices):
    """订单类型"""
    ai_questioning = 'ai_questioning', 'ai回答'
    designated_answer = 'designated_answer', '指定回答'


class NoReferencesSetting(serializers.Serializer):
    status = serializers.ChoiceField(required=True, choices=NoReferencesChoices.choices,
                                     error_messages=ErrMessage.char(_("No reference status")))
    value = serializers.CharField(required=True, error_messages=ErrMessage.char(_("Prompt word")))


def valid_model_params_setting(model_id, model_params_setting):
    if model_id is None or model_params_setting is None or len(model_params_setting.keys()) == 0:
        return
    model = QuerySet(Model).filter(id=model_id).first()
    credential = get_model_credential(model.provider, model.model_type, model.model_name)
    credential.get_model_params_setting_form(model.model_name).valid_form(model_params_setting)


class DatasetSettingSerializer(serializers.Serializer):
    top_n = serializers.FloatField(required=True, max_value=10000, min_value=1,
                                   error_messages=ErrMessage.float(_("Reference segment number")))
    similarity = serializers.FloatField(required=True, max_value=1, min_value=0,
                                        error_messages=ErrMessage.float(_("Acquaintance")))
    max_paragraph_char_number = serializers.IntegerField(required=True, min_value=500, max_value=100000,
                                                         error_messages=ErrMessage.integer(
                                                             _("Maximum number of quoted characters")))
    search_mode = serializers.CharField(required=True, validators=[
        validators.RegexValidator(regex=re.compile("^embedding|keywords|blend$"),
                                  message=_("The type only supports embedding|keywords|blend"), code=500)
    ], error_messages=ErrMessage.char(_("Retrieval Mode")))

    no_references_setting = NoReferencesSetting(required=True,
                                                error_messages=ErrMessage.base(_("Segment settings not referenced")))


class ModelSettingSerializer(serializers.Serializer):
    prompt = serializers.CharField(required=False, allow_null=True, allow_blank=True, max_length=102400,
                                   error_messages=ErrMessage.char(_("Prompt word")))
    system = serializers.CharField(required=False, allow_null=True, allow_blank=True, max_length=102400,
                                   error_messages=ErrMessage.char(_("Role prompts")))
    no_references_prompt = serializers.CharField(required=True, max_length=102400, allow_null=True, allow_blank=True,
                                                 error_messages=ErrMessage.char(_("No citation segmentation prompt")))
    reasoning_content_enable = serializers.BooleanField(required=False,
                                                        error_messages=ErrMessage.char(_("Thinking process switch")))
    reasoning_content_start = serializers.CharField(required=False, allow_null=True, default="<think>",
                                                    allow_blank=True, max_length=256,
                                                    error_messages=ErrMessage.char(
                                                        _("The thinking process begins to mark")))
    reasoning_content_end = serializers.CharField(required=False, allow_null=True, allow_blank=True, default="</think>",
                                                  max_length=256,
                                                  error_messages=ErrMessage.char(_("End of thinking process marker")))


class ApplicationWorkflowSerializer(serializers.Serializer):
    name = serializers.CharField(required=True, max_length=64, min_length=1,
                                 error_messages=ErrMessage.char(_("Application Name")))
    desc = serializers.CharField(required=False, allow_null=True, allow_blank=True,
                                 max_length=256, min_length=1,
                                 error_messages=ErrMessage.char(_("Application Description")))
    work_flow = serializers.DictField(required=False, error_messages=ErrMessage.dict(_("Workflow Objects")))
    prologue = serializers.CharField(required=False, allow_null=True, allow_blank=True, max_length=4096,
                                     error_messages=ErrMessage.char(_("Opening remarks")))

    @staticmethod
    def to_application_model(user_id: str, application: Dict):
        language = get_language()
        if application.get('work_flow') is not None:
            default_workflow = application.get('work_flow')
        else:
            workflow_file_path = os.path.join(PROJECT_DIR, "apps", "application", 'flow',
                                              f'default_workflow_{to_locale(language)}.json')
            if not os.path.exists(workflow_file_path):
                workflow_file_path = os.path.join(PROJECT_DIR, "apps", "application", 'flow',
                                                  f'default_workflow_zh.json')
            default_workflow_json = get_file_content(workflow_file_path)
            default_workflow = json.loads(default_workflow_json)
        for node in default_workflow.get('nodes'):
            if node.get('id') == 'base-node':
                node.get('properties')['node_data']['desc'] = application.get('desc')
                node.get('properties')['node_data']['name'] = application.get('name')
                node.get('properties')['node_data']['prologue'] = application.get('prologue')
        return Application(id=uuid.uuid1(),
                           name=application.get('name'),
                           desc=application.get('desc'),
                           prologue="",
                           dialogue_number=0,
                           user_id=user_id, model_id=None,
                           dataset_setting={},
                           model_setting={},
                           problem_optimization=False,
                           type=ApplicationTypeChoices.WORK_FLOW,
                           stt_model_enable=application.get('stt_model_enable', False),
                           stt_model_id=application.get('stt_model', None),
                           tts_model_id=application.get('tts_model', None),
                           tts_model_enable=application.get('tts_model_enable', False),
                           tts_model_params_setting=application.get('tts_model_params_setting', {}),
                           tts_type=application.get('tts_type', None),
                           file_upload_enable=application.get('file_upload_enable', False),
                           file_upload_setting=application.get('file_upload_setting', {}),
                           work_flow=default_workflow
                           )


def get_base_node_work_flow(work_flow):
    node_list = work_flow.get('nodes')
    base_node_list = [node for node in node_list if node.get('id') == 'base-node']
    if len(base_node_list) > 0:
        return base_node_list[-1]
    return None


class ApplicationSerializer(serializers.Serializer):
    name = serializers.CharField(required=True, max_length=64, min_length=1,
                                 error_messages=ErrMessage.char(_("application name")))
    desc = serializers.CharField(required=False, allow_null=True, allow_blank=True,
                                 max_length=256, min_length=1,
                                 error_messages=ErrMessage.char(_("application describe")))
    model_id = serializers.CharField(required=False, allow_null=True, allow_blank=True,
                                     error_messages=ErrMessage.char(_("Model")))
    dialogue_number = serializers.IntegerField(required=True,
                                               min_value=0,
                                               max_value=1024,
                                               error_messages=ErrMessage.integer(_("Historical chat records")))
    prologue = serializers.CharField(required=False, allow_null=True, allow_blank=True, max_length=4096,
                                     error_messages=ErrMessage.char(_("Opening remarks")))
    dataset_id_list = serializers.ListSerializer(required=False, child=serializers.UUIDField(required=True),
                                                 allow_null=True,
                                                 error_messages=ErrMessage.list(_("Related Knowledge Base")))
    # 数据集相关设置
    dataset_setting = DatasetSettingSerializer(required=True)
    # 模型相关设置
    model_setting = ModelSettingSerializer(required=True)
    # 问题补全
    problem_optimization = serializers.BooleanField(required=True,
                                                    error_messages=ErrMessage.boolean(_("Question completion")))
    problem_optimization_prompt = serializers.CharField(required=False, max_length=102400,
                                                        error_messages=ErrMessage.char(_("Question completion prompt")))
    # 应用类型
    type = serializers.CharField(required=True, error_messages=ErrMessage.char(_("Application Type")),
                                 validators=[
                                     validators.RegexValidator(regex=re.compile("^SIMPLE|WORK_FLOW$"),
                                                               message=_(
                                                                   "Application type only supports SIMPLE|WORK_FLOW"),
                                                               code=500)
                                 ]
                                 )
    model_params_setting = serializers.DictField(required=False, error_messages=ErrMessage.dict(_('Model parameters')))

    def is_valid(self, *, user_id=None, raise_exception=False):
        super().is_valid(raise_exception=True)
        ModelDatasetAssociation(data={'user_id': user_id, 'model_id': self.data.get('model_id'),
                                      'dataset_id_list': self.data.get('dataset_id_list')}).is_valid()

    class Embed(serializers.Serializer):
        host = serializers.CharField(required=True, error_messages=ErrMessage.char(_("Host")))
        protocol = serializers.CharField(required=True, error_messages=ErrMessage.char(_("protocol")))
        token = serializers.CharField(required=True, error_messages=ErrMessage.char(_("token")))

        def get_embed(self, with_valid=True, params=None):
            if params is None:
                params = {}
            if with_valid:
                self.is_valid(raise_exception=True)
            index_path = os.path.join(PROJECT_DIR, 'apps', "application", 'template', 'embed.js')
            file = open(index_path, "r", encoding='utf-8')
            content = file.read()
            file.close()
            application_access_token = QuerySet(ApplicationAccessToken).filter(
                access_token=self.data.get('token')).first()
            is_draggable = 'false'
            show_guide = 'true'
            float_icon = f"{self.data.get('protocol')}://{self.data.get('host')}/ui/MaxKB.gif"
            xpack_cache = DBModelManage.get_model('xpack_cache')
            X_PACK_LICENSE_IS_VALID = False if xpack_cache is None else xpack_cache.get('XPACK_LICENSE_IS_VALID', False)
            # 获取接入的query参数
            query = self.get_query_api_input(application_access_token.application, params)
            float_location = {"x": {"type": "right", "value": 0}, "y": {"type": "bottom", "value": 30}}
            header_font_color = "rgb(100, 106, 115)"
            application_setting_model = DBModelManage.get_model('application_setting')
            if application_setting_model is not None and X_PACK_LICENSE_IS_VALID:
                application_setting = QuerySet(application_setting_model).filter(
                    application_id=application_access_token.application_id).first()
                if application_setting is not None:
                    is_draggable = 'true' if application_setting.draggable else 'false'
                    if application_setting.float_icon is not None and len(application_setting.float_icon) > 0:
                        float_icon = f"{self.data.get('protocol')}://{self.data.get('host')}{application_setting.float_icon}"
                    show_guide = 'true' if application_setting.show_guide else 'false'
                    if application_setting.float_location is not None:
                        float_location = application_setting.float_location
                    if application_setting.custom_theme is not None and len(
                            application_setting.custom_theme.get('header_font_color', 'rgb(100, 106, 115)')) > 0:
                        header_font_color = application_setting.custom_theme.get('header_font_color',
                                                                                 'rgb(100, 106, 115)')

            is_auth = 'true' if application_access_token is not None and application_access_token.is_active else 'false'
            t = Template(content)
            s = t.render(
                Context(
                    {'is_auth': is_auth, 'protocol': self.data.get('protocol'), 'host': self.data.get('host'),
                     'token': self.data.get('token'),
                     'white_list_str': ",".join(
                         application_access_token.white_list if application_access_token.white_list is not None else []),
                     'white_active': 'true' if application_access_token.white_active else 'false',
                     'is_draggable': is_draggable,
                     'float_icon': float_icon,
                     'query': query,
                     'show_guide': show_guide,
                     'x_type': float_location.get('x', {}).get('type', 'right'),
                     'x_value': float_location.get('x', {}).get('value', 0),
                     'y_type': float_location.get('y', {}).get('type', 'bottom'),
                     'y_value': float_location.get('y', {}).get('value', 30),
                     'max_kb_id': str(uuid.uuid1()).replace('-', ''),
                     'header_font_color': header_font_color}))
            response = HttpResponse(s, status=200, headers={'Content-Type': 'text/javascript'})
            return response

        def get_query_api_input(self, application, params):
            query = ''
            if application.work_flow is not None:
                work_flow = application.work_flow
                if work_flow is not None:
                    for node in work_flow.get('nodes', []):
                        if node['id'] == 'base-node':
                            input_field_list = node.get('properties', {}).get('api_input_field_list',
                                                                              node.get('properties', {}).get(
                                                                                  'input_field_list', []))
                            if input_field_list is not None:
                                for field in input_field_list:
                                    if field['assignment_method'] == 'api_input' and field['variable'] in params:
                                        query += f"&{field['variable']}={params[field['variable']]}"

            return query

    class AccessTokenSerializer(serializers.Serializer):
        application_id = serializers.UUIDField(required=True, error_messages=ErrMessage.boolean(_("Application ID")))

        class AccessTokenEditSerializer(serializers.Serializer):
            access_token_reset = serializers.BooleanField(required=False,
                                                          error_messages=ErrMessage.boolean(_("Reset Token")))
            is_active = serializers.BooleanField(required=False, error_messages=ErrMessage.boolean(_("Is it enabled")))
            access_num = serializers.IntegerField(required=False, max_value=10000,
                                                  min_value=0,
                                                  error_messages=ErrMessage.integer(_("Number of visits")))
            white_active = serializers.BooleanField(required=False,
                                                    error_messages=ErrMessage.boolean(_("Whether to enable whitelist")))
            white_list = serializers.ListSerializer(required=False, child=serializers.CharField(required=True,
                                                                                                error_messages=ErrMessage.char(
                                                                                                    _("Whitelist"))),
                                                    error_messages=ErrMessage.list(_("Whitelist"))),
            show_source = serializers.BooleanField(required=False,
                                                   error_messages=ErrMessage.boolean(
                                                       _("Whether to display knowledge sources")))
            language = serializers.CharField(required=False, allow_blank=True, allow_null=True,
                                             error_messages=ErrMessage.char(_("language")))

        def edit(self, instance: Dict, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
                ApplicationSerializer.AccessTokenSerializer.AccessTokenEditSerializer(data=instance).is_valid(
                    raise_exception=True)

            application_access_token = QuerySet(ApplicationAccessToken).get(
                application_id=self.data.get('application_id'))
            if 'is_active' in instance:
                application_access_token.is_active = instance.get("is_active")
            if 'access_token_reset' in instance and instance.get('access_token_reset'):
                del_application_access_token(application_access_token.access_token)
                application_access_token.access_token = hashlib.md5(str(uuid.uuid1()).encode()).hexdigest()[8:24]
            if 'access_num' in instance and instance.get('access_num') is not None:
                application_access_token.access_num = instance.get("access_num")
            if 'white_active' in instance and instance.get('white_active') is not None:
                application_access_token.white_active = instance.get("white_active")
            if 'white_list' in instance and instance.get('white_list') is not None:
                application_access_token.white_list = instance.get('white_list')
            if 'show_source' in instance and instance.get('show_source') is not None:
                application_access_token.show_source = instance.get('show_source')
            if 'language' in instance and instance.get('language') is not None:
                application_access_token.language = instance.get('language')
            if 'language' not in instance or instance.get('language') is None:
                application_access_token.language = None
            application_access_token.save()
            application_setting_model = DBModelManage.get_model('application_setting')
            xpack_cache = DBModelManage.get_model('xpack_cache')
            X_PACK_LICENSE_IS_VALID = False if xpack_cache is None else xpack_cache.get("XPACK_LICENSE_IS_VALID", False)
            if application_setting_model is not None and X_PACK_LICENSE_IS_VALID:
                application_setting, _ = application_setting_model.objects.get_or_create(
                    application_id=self.data.get('application_id'))
                if application_setting is not None and instance.get('authentication') is not None and instance.get(
                        'authentication_value') is not None:
                    application_setting.authentication = instance.get('authentication')
                    application_setting.authentication_value = {
                        "type": "password",
                        "value": instance.get('authentication_value')
                    }
                    application_setting.save()

            get_application_access_token(application_access_token.access_token, False)
            return self.one(with_valid=False)

        def one(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application_id = self.data.get("application_id")
            application_access_token = QuerySet(ApplicationAccessToken).filter(
                application_id=application_id).first()
            if application_access_token is None:
                application_access_token = ApplicationAccessToken(application_id=application_id,
                                                                  access_token=hashlib.md5(
                                                                      str(uuid.uuid1()).encode()).hexdigest()[
                                                                               8:24], is_active=True)
                application_access_token.save()
            return {'application_id': application_access_token.application_id,
                    'access_token': application_access_token.access_token,
                    "is_active": application_access_token.is_active,
                    'access_num': application_access_token.access_num,
                    'white_active': application_access_token.white_active,
                    'white_list': application_access_token.white_list,
                    'show_source': application_access_token.show_source,
                    'language': application_access_token.language
                    }

    class Authentication(serializers.Serializer):
        access_token = serializers.CharField(required=True, error_messages=ErrMessage.char(_("access_token")))
        authentication_value = serializers.JSONField(required=False, allow_null=True,
                                                     error_messages=ErrMessage.char(_("Certification Information")))

        def auth(self, request, with_valid=True):
            token = request.META.get('HTTP_AUTHORIZATION')
            token_details = None
            try:
                # 校验token
                if token is not None:
                    token_details = signing.loads(token)
            except Exception as e:
                token = None
            if with_valid:
                self.is_valid(raise_exception=True)
            access_token = self.data.get("access_token")
            application_access_token = QuerySet(ApplicationAccessToken).filter(access_token=access_token).first()
            authentication_value = self.data.get('authentication_value', None)
            authentication = {}
            if application_access_token is not None and application_access_token.is_active:
                if token_details is not None and 'client_id' in token_details and token_details.get(
                        'client_id') is not None:
                    client_id = token_details.get('client_id')
                    authentication = token_details.get('authentication', {})
                else:
                    client_id = str(uuid.uuid1())
                if authentication_value is not None:
                    # 认证用户token
                    self.auth_authentication_value(authentication_value, str(application_access_token.application_id))
                    authentication = {'type': authentication_value.get('type'),
                                      'value': password_encrypt(authentication_value.get('value'))}
                token = signing.dumps({'application_id': str(application_access_token.application_id),
                                       'user_id': str(application_access_token.application.user.id),
                                       'access_token': application_access_token.access_token,
                                       'type': AuthenticationType.APPLICATION_ACCESS_TOKEN.value,
                                       'client_id': client_id,
                                       'authentication': authentication})
                return token
            else:
                raise NotFound404(404, _("Invalid access_token"))

        def auth_authentication_value(self, authentication_value, application_id):
            application_setting_model = DBModelManage.get_model('application_setting')
            xpack_cache = DBModelManage.get_model('xpack_cache')
            X_PACK_LICENSE_IS_VALID = False if xpack_cache is None else xpack_cache.get('XPACK_LICENSE_IS_VALID', False)
            if application_setting_model is not None and X_PACK_LICENSE_IS_VALID:
                application_setting = QuerySet(application_setting_model).filter(application_id=application_id).first()
                if application_setting.authentication and authentication_value is not None:
                    if authentication_value.get('type') == 'password':
                        if not self.auth_password(authentication_value, application_setting.authentication_value):
                            raise AppApiException(1005, _("Wrong password"))
            return True

        @staticmethod
        def auth_password(source_authentication_value, authentication_value):
            return source_authentication_value.get('value') == authentication_value.get('value')

    class Edit(serializers.Serializer):
        name = serializers.CharField(required=False, max_length=64, min_length=1,
                                     error_messages=ErrMessage.char(_("Application Name")))
        desc = serializers.CharField(required=False, max_length=256, min_length=1, allow_null=True, allow_blank=True,
                                     error_messages=ErrMessage.char(_("Application Description")))
        model_id = serializers.CharField(required=False, allow_blank=True, allow_null=True,
                                         error_messages=ErrMessage.char(_("Model")))
        dialogue_number = serializers.IntegerField(required=False,
                                                   min_value=0,
                                                   max_value=1024,
                                                   error_messages=ErrMessage.integer(_("Historical chat records")))
        prologue = serializers.CharField(required=False, allow_null=True, allow_blank=True, max_length=4096,
                                         error_messages=ErrMessage.char(_("Opening remarks")))
        dataset_id_list = serializers.ListSerializer(required=False, child=serializers.UUIDField(required=True),
                                                     error_messages=ErrMessage.list(_("Related Knowledge Base"))
                                                     )
        # 数据集相关设置
        dataset_setting = DatasetSettingSerializer(required=False, allow_null=True,
                                                   error_messages=ErrMessage.json(_("Dataset settings")))
        # 模型相关设置
        model_setting = ModelSettingSerializer(required=False, allow_null=True,
                                               error_messages=ErrMessage.json(_("Model setup")))
        # 问题补全
        problem_optimization = serializers.BooleanField(required=False, allow_null=True,
                                                        error_messages=ErrMessage.boolean(_("Question completion")))
        icon = serializers.CharField(required=False, allow_null=True, error_messages=ErrMessage.char(_("Icon")))

        model_params_setting = serializers.DictField(required=False,
                                                     error_messages=ErrMessage.dict(_('Model parameters')))

    class Create(serializers.Serializer):
        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))

        @valid_license(model=Application, count=5,
                       message=_(
                           'The community version supports up to 5 applications. If you need more applications, please contact us (https://fit2cloud.com/).'))
        @transaction.atomic
        def insert(self, application: Dict):
            application_type = application.get('type')
            if 'WORK_FLOW' == application_type:
                return self.insert_workflow(application)
            else:
                return self.insert_simple(application)

        def insert_workflow(self, application: Dict):
            self.is_valid(raise_exception=True)
            user_id = self.data.get('user_id')
            ApplicationWorkflowSerializer(data=application).is_valid(raise_exception=True)
            application_model = ApplicationWorkflowSerializer.to_application_model(user_id, application)
            application_model.save()
            # 插入认证信息
            ApplicationAccessToken(application_id=application_model.id,
                                   access_token=hashlib.md5(str(uuid.uuid1()).encode()).hexdigest()[8:24]).save()
            return ApplicationSerializerModel(application_model).data

        def insert_simple(self, application: Dict):
            self.is_valid(raise_exception=True)
            user_id = self.data.get('user_id')
            ApplicationSerializer(data=application).is_valid(user_id=user_id, raise_exception=True)
            application_model = ApplicationSerializer.Create.to_application_model(user_id, application)
            dataset_id_list = application.get('dataset_id_list', [])
            application_dataset_mapping_model_list = [
                ApplicationSerializer.Create.to_application_dataset_mapping(application_model.id, dataset_id) for
                dataset_id in dataset_id_list]
            # 插入应用
            application_model.save()
            # 插入认证信息
            ApplicationAccessToken(application_id=application_model.id,
                                   access_token=hashlib.md5(str(uuid.uuid1()).encode()).hexdigest()[8:24]).save()
            # 插入关联数据
            QuerySet(ApplicationDatasetMapping).bulk_create(application_dataset_mapping_model_list)
            return ApplicationSerializerModel(application_model).data

        @staticmethod
        def to_application_model(user_id: str, application: Dict):
            return Application(id=uuid.uuid1(), name=application.get('name'), desc=application.get('desc'),
                               prologue=application.get('prologue'),
                               dialogue_number=application.get('dialogue_number', 0),
                               user_id=user_id, model_id=application.get('model_id'),
                               dataset_setting=application.get('dataset_setting'),
                               model_setting=application.get('model_setting'),
                               problem_optimization=application.get('problem_optimization'),
                               type=ApplicationTypeChoices.SIMPLE,
                               model_params_setting=application.get('model_params_setting', {}),
                               problem_optimization_prompt=application.get('problem_optimization_prompt', None),
                               stt_model_enable=application.get('stt_model_enable', False),
                               stt_model_id=application.get('stt_model', None),
                               tts_model_id=application.get('tts_model', None),
                               tts_model_enable=application.get('tts_model_enable', False),
                               tts_model_params_setting=application.get('tts_model_params_setting', {}),
                               tts_type=application.get('tts_type', None),
                               file_upload_enable=application.get('file_upload_enable', False),
                               file_upload_setting=application.get('file_upload_setting', {}),
                               work_flow={}
                               )

        @staticmethod
        def to_application_dataset_mapping(application_id: str, dataset_id: str):
            return ApplicationDatasetMapping(id=uuid.uuid1(), application_id=application_id, dataset_id=dataset_id)

    class HitTest(serializers.Serializer):
        id = serializers.CharField(required=True, error_messages=ErrMessage.uuid(_("Application ID")))
        user_id = serializers.UUIDField(required=False, error_messages=ErrMessage.uuid(_("User ID")))
        query_text = serializers.CharField(required=True, error_messages=ErrMessage.char(_("Query text")))
        top_number = serializers.IntegerField(required=True, max_value=10000, min_value=1,
                                              error_messages=ErrMessage.integer(_("topN")))
        similarity = serializers.FloatField(required=True, max_value=2, min_value=0,
                                            error_messages=ErrMessage.float(_("Relevance")))
        search_mode = serializers.CharField(required=True, validators=[
            validators.RegexValidator(regex=re.compile("^embedding|keywords|blend$"),
                                      message=_("The type only supports embedding|keywords|blend"), code=500)
        ], error_messages=ErrMessage.char(_("Retrieval Mode")))

        def is_valid(self, *, raise_exception=False):
            super().is_valid(raise_exception=True)
            if not QuerySet(Application).filter(id=self.data.get('id')).exists():
                raise AppApiException(500, _('Application id does not exist'))

        def hit_test(self):
            self.is_valid()
            vector = VectorStore.get_embedding_vector()
            dataset_id_list = [ad.dataset_id for ad in
                               QuerySet(ApplicationDatasetMapping).filter(
                                   application_id=self.data.get('id'))]
            if len(dataset_id_list) == 0:
                return []
            exclude_document_id_list = [str(document.id) for document in
                                        QuerySet(Document).filter(
                                            dataset_id__in=dataset_id_list,
                                            is_active=False)]
            model = get_embedding_model_by_dataset_id_list(dataset_id_list)
            # 向量库检索
            hit_list = vector.hit_test(self.data.get('query_text'), dataset_id_list, exclude_document_id_list,
                                       self.data.get('top_number'),
                                       self.data.get('similarity'),
                                       SearchMode(self.data.get('search_mode')),
                                       model)
            hit_dict = reduce(lambda x, y: {**x, **y}, [{hit.get('paragraph_id'): hit} for hit in hit_list], {})
            p_list = list_paragraph([h.get('paragraph_id') for h in hit_list])
            return [{**p, 'similarity': hit_dict.get(p.get('id')).get('similarity'),
                     'comprehensive_score': hit_dict.get(p.get('id')).get('comprehensive_score')} for p in p_list]

    class Query(serializers.Serializer):
        name = serializers.CharField(required=False, error_messages=ErrMessage.char(_("Application Name")))

        desc = serializers.CharField(required=False, error_messages=ErrMessage.char(_("Application Description")))

        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))
        select_user_id = serializers.UUIDField(required=False, error_messages=ErrMessage.uuid(_("Select User ID")))

        def get_query_set(self):
            user_id = self.data.get("user_id")
            query_set_dict = {}
            query_set = QuerySet(model=get_dynamics_model(
                {'temp_application.name': models.CharField(), 'temp_application.desc': models.CharField(),
                 'temp_application.create_time': models.DateTimeField(),
                 'temp_application.user_id': models.CharField(), }))
            if "desc" in self.data and self.data.get('desc') is not None:
                query_set = query_set.filter(**{'temp_application.desc__icontains': self.data.get("desc")})
            if "name" in self.data and self.data.get('name') is not None:
                query_set = query_set.filter(**{'temp_application.name__icontains': self.data.get("name")})
            if 'select_user_id' in self.data and self.data.get('select_user_id') is not None and self.data.get(
                    'select_user_id') != 'all':
                query_set = query_set.filter(**{'temp_application.user_id__exact': self.data.get('select_user_id')})
            query_set = query_set.order_by("-temp_application.create_time")
            query_set_dict['default_sql'] = query_set

            query_set_dict['application_custom_sql'] = QuerySet(model=get_dynamics_model(
                {'application.user_id': models.CharField(),
                 })).filter(
                **{'application.user_id': user_id}
            )

            query_set_dict['team_member_permission_custom_sql'] = QuerySet(model=get_dynamics_model(
                {'user_id': models.CharField(),
                 'team_member_permission.auth_target_type': models.CharField(),
                 'team_member_permission.operate': ArrayField(base_field=models.CharField(max_length=256,
                                                                                          blank=True,
                                                                                          choices=AuthOperate.choices,
                                                                                          default=AuthOperate.USE)
                                                              )})).filter(
                **{'user_id': user_id, 'team_member_permission.operate__contains': ['USE'],
                   'team_member_permission.auth_target_type': 'APPLICATION'})

            return query_set_dict

        def list(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            return [ApplicationSerializer.Query.reset_application(a) for a in
                    native_search(self.get_query_set(), select_string=get_file_content(
                        os.path.join(PROJECT_DIR, "apps", "application", 'sql', 'list_application.sql')))]

        @staticmethod
        def reset_application(application: Dict):
            application['multiple_rounds_dialogue'] = True if application.get('dialogue_number') > 0 else False

            if 'dataset_setting' in application:
                application['dataset_setting'] = {'search_mode': 'embedding', 'no_references_setting': {
                    'status': 'ai_questioning',
                    'value': '{question}'}, **application['dataset_setting']}
            return application

        def page(self, current_page: int, page_size: int, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            return native_page_search(current_page, page_size, self.get_query_set(), select_string=get_file_content(
                os.path.join(PROJECT_DIR, "apps", "application", 'sql', 'list_application.sql')),
                                      post_records_handler=ApplicationSerializer.Query.reset_application)

    class ApplicationModel(serializers.ModelSerializer):
        class Meta:
            model = Application
            fields = ['id', 'name', 'desc', 'prologue', 'dialogue_number', 'icon', 'type']

    class IconOperate(serializers.Serializer):
        application_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("Application ID")))
        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))
        image = UploadedImageField(required=True, error_messages=ErrMessage.image(_("picture")))

        def edit(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application = QuerySet(Application).filter(id=self.data.get('application_id')).first()
            if application is None:
                raise AppApiException(500, _('Application id does not exist'))
            image_id = uuid.uuid1()
            image = Image(id=image_id, image=self.data.get('image').read(), image_name=self.data.get('image').name)
            image.save()
            application.icon = f'/api/image/{image_id}'
            application.save()
            application_access_token = QuerySet(ApplicationAccessToken).filter(
                application_id=self.data.get('application_id')).first()
            get_application_access_token(application_access_token.access_token, False)
            return {**ApplicationSerializer.Query.reset_application(ApplicationSerializerModel(application).data)}

    class Import(serializers.Serializer):
        file = UploadedFileField(required=True, error_messages=ErrMessage.image(_("file")))
        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))

        @valid_license(model=Application, count=5,
                       message=_(
                           'The community version supports up to 5 applications. If you need more applications, please contact us (https://fit2cloud.com/).'))
        @transaction.atomic
        def import_(self, with_valid=True):
            if with_valid:
                self.is_valid()
            user_id = self.data.get('user_id')
            mk_instance_bytes = self.data.get('file').read()
            try:
                mk_instance = restricted_loads(mk_instance_bytes)
            except Exception as e:
                raise AppApiException(1001, _("Unsupported file format"))
            application = mk_instance.application
            function_lib_list = mk_instance.function_lib_list
            if len(function_lib_list) > 0:
                function_lib_id_list = [function_lib.get('id') for function_lib in function_lib_list]
                exits_function_lib_id_list = [str(function_lib.id) for function_lib in
                                              QuerySet(FunctionLib).filter(id__in=function_lib_id_list)]
                # 获取到需要插入的函数
                function_lib_list = [function_lib for function_lib in function_lib_list if
                                     not exits_function_lib_id_list.__contains__(function_lib.get('id'))]
            application_model = self.to_application(application, user_id)
            function_lib_model_list = [self.to_function_lib(f, user_id) for f in function_lib_list]
            application_model.save()
            # 插入认证信息
            ApplicationAccessToken(application_id=application_model.id,
                                   access_token=hashlib.md5(str(uuid.uuid1()).encode()).hexdigest()[8:24]).save()
            QuerySet(FunctionLib).bulk_create(function_lib_model_list) if len(function_lib_model_list) > 0 else None
            return True

        @staticmethod
        def to_application(application, user_id):
            work_flow = application.get('work_flow')
            for node in work_flow.get('nodes', []):
                if node.get('type') == 'search-dataset-node':
                    node.get('properties', {}).get('node_data', {})['dataset_id_list'] = []
            return Application(id=uuid.uuid1(), user_id=user_id, name=application.get('name'),
                               desc=application.get('desc'),
                               prologue=application.get('prologue'), dialogue_number=application.get('dialogue_number'),
                               dataset_setting=application.get('dataset_setting'),
                               model_setting=application.get('model_setting'),
                               model_params_setting=application.get('model_params_setting'),
                               tts_model_params_setting=application.get('tts_model_params_setting'),
                               problem_optimization=application.get('problem_optimization'),
                               icon="/ui/favicon.ico",
                               work_flow=work_flow,
                               type=application.get('type'),
                               problem_optimization_prompt=application.get('problem_optimization_prompt'),
                               tts_model_enable=application.get('tts_model_enable'),
                               stt_model_enable=application.get('stt_model_enable'),
                               tts_type=application.get('tts_type'),
                               clean_time=application.get('clean_time'),
                               file_upload_enable=application.get('file_upload_enable'),
                               file_upload_setting=application.get('file_upload_setting'),
                               )

        @staticmethod
        def to_function_lib(function_lib, user_id):
            """

            @param user_id: 用户id
            @param function_lib: 函数库
            @return:
            """
            return FunctionLib(id=function_lib.get('id'), user_id=user_id, name=function_lib.get('name'),
                               code=function_lib.get('code'), input_field_list=function_lib.get('input_field_list'),
                               is_active=function_lib.get('is_active'),
                               permission_type=PermissionType.PRIVATE)

    class Operate(serializers.Serializer):
        application_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("Application ID")))
        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))

        def is_valid(self, *, raise_exception=False):
            super().is_valid(raise_exception=True)
            if not QuerySet(Application).filter(id=self.data.get('application_id')).exists():
                raise AppApiException(500, _('Application id does not exist'))

        def list_model(self, model_type=None, with_valid=True):
            if with_valid:
                self.is_valid()
            if model_type is None:
                model_type = "LLM"
            application = QuerySet(Application).filter(id=self.data.get("application_id")).first()
            return ModelSerializer.Query(
                data={'user_id': application.user_id, 'model_type': model_type}).list(
                with_valid=True)

        def list_function_lib(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application = QuerySet(Application).filter(id=self.data.get("application_id")).first()
            return FunctionLibSerializer.Query(
                data={'user_id': application.user_id, 'is_active': True,
                      'function_type': FunctionType.PUBLIC}
            ).list(with_valid=True)

        def get_function_lib(self, function_lib_id, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application = QuerySet(Application).filter(id=self.data.get("application_id")).first()
            return FunctionLibSerializer.Operate(data={'user_id': application.user_id, 'id': function_lib_id}).one(
                with_valid=True)

        def get_model_params_form(self, model_id, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application = QuerySet(Application).filter(id=self.data.get("application_id")).first()
            return ModelSerializer.ModelParams(
                data={'user_id': application.user_id, 'id': model_id}).get_model_params(with_valid=True)

        def delete(self, with_valid=True):
            if with_valid:
                self.is_valid()
            QuerySet(Application).filter(id=self.data.get('application_id')).delete()
            return True

        def export(self, with_valid=True):
            try:
                if with_valid:
                    self.is_valid()
                application_id = self.data.get('application_id')
                application = QuerySet(Application).filter(id=application_id).first()
                function_lib_id_list = [node.get('properties', {}).get('node_data', {}).get('function_lib_id') for node
                                        in
                                        application.work_flow.get('nodes', []) if
                                        node.get('type') == 'function-lib-node']
                function_lib_list = []
                if len(function_lib_id_list) > 0:
                    function_lib_list = QuerySet(FunctionLib).filter(id__in=function_lib_id_list)
                application_dict = ApplicationSerializerModel(application).data

                mk_instance = MKInstance(application_dict,
                                         [FunctionLibModelSerializer(function_lib).data for function_lib in
                                          function_lib_list], 'v1')
                application_pickle = pickle.dumps(mk_instance)
                response = HttpResponse(content_type='text/plain', content=application_pickle)
                response['Content-Disposition'] = f'attachment; filename="{application.name}.mk"'
                return response
            except Exception as e:
                return result.error(str(e), response_status=status.HTTP_500_INTERNAL_SERVER_ERROR)

        @transaction.atomic
        def publish(self, instance, with_valid=True):
            if with_valid:
                self.is_valid()
            user_id = self.data.get('user_id')
            user = QuerySet(User).filter(id=user_id).first()
            application = QuerySet(Application).filter(id=self.data.get("application_id")).first()
            work_flow = instance.get('work_flow')
            if work_flow is None:
                raise AppApiException(500, _("work_flow is a required field"))
            Flow.new_instance(work_flow).is_valid()
            base_node = get_base_node_work_flow(work_flow)
            if base_node is not None:
                node_data = base_node.get('properties').get('node_data')
                if node_data is not None:
                    application.name = node_data.get('name')
                    application.desc = node_data.get('desc')
                    application.prologue = node_data.get('prologue')
            dataset_list = self.list_dataset(with_valid=False)
            application_dataset_id_list = [str(dataset.get('id')) for dataset in dataset_list]
            dataset_id_list = self.update_reverse_search_node(work_flow, application_dataset_id_list)
            application.work_flow = work_flow
            application.save()
            # 插入知识库关联关系
            self.save_application_mapping(application_dataset_id_list, dataset_id_list, application.id)
            chat_cache.clear_by_application_id(str(application.id))
            work_flow_version = WorkFlowVersion(work_flow=work_flow, application=application,
                                                name=datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
                                                publish_user_id=user_id,
                                                publish_user_name=user.username)
            chat_cache.clear_by_application_id(str(application.id))
            work_flow_version.save()
            return True

        def one(self, with_valid=True):
            if with_valid:
                self.is_valid()
            application_id = self.data.get("application_id")
            application = QuerySet(Application).get(id=application_id)
            dataset_list = self.list_dataset(with_valid=False)
            mapping_dataset_id_list = [adm.dataset_id for adm in
                                       QuerySet(ApplicationDatasetMapping).filter(application_id=application_id)]
            dataset_id_list = [d.get('id') for d in
                               list(filter(lambda row: mapping_dataset_id_list.__contains__(row.get('id')),
                                           dataset_list))]
            self.update_search_node(application.work_flow, [str(dataset.get('id')) for dataset in dataset_list])
            return {**ApplicationSerializer.Query.reset_application(ApplicationSerializerModel(application).data),
                    'dataset_id_list': dataset_id_list}

        def get_search_node(self, work_flow):
            if work_flow is None:
                return []
            return [node for node in work_flow.get('nodes', []) if node.get('type', '') == 'search-dataset-node']

        def update_search_node(self, work_flow, user_dataset_id_list: List):
            search_node_list = self.get_search_node(work_flow)
            for search_node in search_node_list:
                node_data = search_node.get('properties', {}).get('node_data', {})
                dataset_id_list = node_data.get('dataset_id_list', [])
                node_data['source_dataset_id_list'] = dataset_id_list
                node_data['dataset_id_list'] = [dataset_id for dataset_id in dataset_id_list if
                                                user_dataset_id_list.__contains__(dataset_id)]

        def update_reverse_search_node(self, work_flow, user_dataset_id_list: List):
            search_node_list = self.get_search_node(work_flow)
            result_dataset_id_list = []
            for search_node in search_node_list:
                node_data = search_node.get('properties', {}).get('node_data', {})
                dataset_id_list = node_data.get('dataset_id_list', [])
                for dataset_id in dataset_id_list:
                    if not user_dataset_id_list.__contains__(dataset_id):
                        message = lazy_format(_('Unknown knowledge base id {dataset_id}, unable to associate'),
                                              dataset_id=dataset_id)
                        raise AppApiException(500, message)

                source_dataset_id_list = node_data.get('source_dataset_id_list', [])
                source_dataset_id_list = [source_dataset_id for source_dataset_id in source_dataset_id_list if
                                          not user_dataset_id_list.__contains__(source_dataset_id)]
                source_dataset_id_list = list({*source_dataset_id_list, *dataset_id_list})
                node_data['source_dataset_id_list'] = []
                node_data['dataset_id_list'] = source_dataset_id_list
                result_dataset_id_list = [*source_dataset_id_list, *result_dataset_id_list]
            return list(set(result_dataset_id_list))

        def profile(self, with_valid=True):
            if with_valid:
                self.is_valid()
            application_id = self.data.get("application_id")
            application = QuerySet(Application).get(id=application_id)
            application_access_token = QuerySet(ApplicationAccessToken).filter(application_id=application.id).first()
            if application_access_token is None:
                raise AppUnauthorizedFailed(500, _("Illegal User"))
            application_setting_model = DBModelManage.get_model('application_setting')
            if application.type == ApplicationTypeChoices.WORK_FLOW:
                work_flow_version = QuerySet(WorkFlowVersion).filter(application_id=application.id).order_by(
                    '-create_time')[0:1].first()
                if work_flow_version is not None:
                    application.work_flow = work_flow_version.work_flow

            xpack_cache = DBModelManage.get_model('xpack_cache')
            X_PACK_LICENSE_IS_VALID = False if xpack_cache is None else xpack_cache.get('XPACK_LICENSE_IS_VALID', False)
            application_setting_dict = {}
            if application_setting_model is not None and X_PACK_LICENSE_IS_VALID:
                application_setting = QuerySet(application_setting_model).filter(
                    application_id=application_access_token.application_id).first()
                if application_setting is not None:
                    custom_theme = getattr(application_setting, 'custom_theme', {})
                    float_location = getattr(application_setting, 'float_location', {})
                    if not custom_theme:
                        application_setting.custom_theme = {
                            'theme_color': '',
                            'header_font_color': ''
                        }
                    if not float_location:
                        application_setting.float_location = {
                            'x': {'type': '', 'value': ''},
                            'y': {'type': '', 'value': ''}
                        }
                    application_setting_dict = {'show_source': application_access_token.show_source,
                                                'show_history': application_setting.show_history,
                                                'draggable': application_setting.draggable,
                                                'show_guide': application_setting.show_guide,
                                                'avatar': application_setting.avatar,
                                                'show_avatar': application_setting.show_avatar,
                                                'float_icon': application_setting.float_icon,
                                                'authentication': application_setting.authentication,
                                                'authentication_type': application_setting.authentication_value.get(
                                                    'type', 'password'),
                                                'disclaimer': application_setting.disclaimer,
                                                'disclaimer_value': application_setting.disclaimer_value,
                                                'custom_theme': application_setting.custom_theme,
                                                'user_avatar': application_setting.user_avatar,
                                                'show_user_avatar': application_setting.show_user_avatar,
                                                'float_location': application_setting.float_location}
            return ApplicationSerializer.Query.reset_application(
                {**ApplicationSerializer.ApplicationModel(application).data,
                 'stt_model_id': application.stt_model_id,
                 'tts_model_id': application.tts_model_id,
                 'stt_model_enable': application.stt_model_enable,
                 'tts_model_enable': application.tts_model_enable,
                 'tts_type': application.tts_type,
                 'tts_autoplay': application.tts_autoplay,
                 'stt_autosend': application.stt_autosend,
                 'file_upload_enable': application.file_upload_enable,
                 'file_upload_setting': application.file_upload_setting,
                 'work_flow': application.work_flow,
                 'show_source': application_access_token.show_source,
                 'language': application_access_token.language,
                 **application_setting_dict})

        @transaction.atomic
        def edit(self, instance: Dict, with_valid=True):
            if with_valid:
                self.is_valid()
                ApplicationSerializer.Edit(data=instance).is_valid(
                    raise_exception=True)
            application_id = self.data.get("application_id")

            application = QuerySet(Application).get(id=application_id)
            if instance.get('model_id') is None or len(instance.get('model_id')) == 0:
                application.model_id = None
            else:
                model = QuerySet(Model).filter(
                    id=instance.get('model_id')).first()
                if model is None:
                    raise AppApiException(500, _("Model does not exist"))
                if not model.is_permission(application.user_id):
                    message = lazy_format(_('No permission to use this model:{model_name}'), model_name=model.name)
                    raise AppApiException(500, message)
            if instance.get('stt_model_id') is None or len(instance.get('stt_model_id')) == 0:
                application.stt_model_id = None
            else:
                model = QuerySet(Model).filter(
                    id=instance.get('stt_model_id')).first()
                if model is None:
                    raise AppApiException(500, _("Model does not exist"))
                if not model.is_permission(application.user_id):
                    message = lazy_format(_('No permission to use this model:{model_name}'), model_name=model.name)
                    raise AppApiException(500, message)
            if instance.get('tts_model_id') is None or len(instance.get('tts_model_id')) == 0:
                application.tts_model_id = None
            else:
                model = QuerySet(Model).filter(
                    id=instance.get('tts_model_id')).first()
                if model is None:
                    raise AppApiException(500, _("Model does not exist"))
                if not model.is_permission(application.user_id):
                    message = lazy_format(_('No permission to use this model:{model_name}'), model_name=model.name)
                    raise AppApiException(500, message)
            if 'work_flow' in instance:
                # 当前用户可修改关联的知识库列表
                application_dataset_id_list = [str(dataset_dict.get('id')) for dataset_dict in
                                               self.list_dataset(with_valid=False)]
                self.update_reverse_search_node(instance.get('work_flow'), application_dataset_id_list)
                # 找到语音配置相关
                self.get_work_flow_model(instance)

            update_keys = ['name', 'desc', 'model_id', 'multiple_rounds_dialogue', 'prologue', 'status',
                           'dataset_setting', 'model_setting', 'problem_optimization', 'dialogue_number',
                           'stt_model_id', 'tts_model_id', 'tts_model_enable', 'stt_model_enable', 'tts_type',
                           'tts_autoplay', 'stt_autosend', 'file_upload_enable', 'file_upload_setting',
                           'api_key_is_active', 'icon', 'work_flow', 'model_params_setting', 'tts_model_params_setting',
                           'problem_optimization_prompt', 'clean_time']
            for update_key in update_keys:
                if update_key in instance and instance.get(update_key) is not None:
                    application.__setattr__(update_key, instance.get(update_key))
            application.save()

            if 'dataset_id_list' in instance:
                dataset_id_list = instance.get('dataset_id_list')
                # 当前用户可修改关联的知识库列表
                application_dataset_id_list = [str(dataset_dict.get('id')) for dataset_dict in
                                               self.list_dataset(with_valid=False)]
                for dataset_id in dataset_id_list:
                    if not application_dataset_id_list.__contains__(dataset_id):
                        message = lazy_format(_('Unknown knowledge base id {dataset_id}, unable to associate'),
                                              dataset_id=dataset_id)
                        raise AppApiException(500, message)

                self.save_application_mapping(application_dataset_id_list, dataset_id_list, application_id)
            if application.type == ApplicationTypeChoices.SIMPLE:
                chat_cache.clear_by_application_id(application_id)
            application_access_token = QuerySet(ApplicationAccessToken).filter(application_id=application_id).first()
            # 更新缓存数据
            get_application_access_token(application_access_token.access_token, False)
            return self.one(with_valid=False)

        @staticmethod
        def save_application_mapping(application_dataset_id_list, dataset_id_list, application_id):
            # 需要排除已删除的数据集
            dataset_id_list = [dataset.id for dataset in QuerySet(DataSet).filter(id__in=dataset_id_list)]
            # 删除已经关联的id
            QuerySet(ApplicationDatasetMapping).filter(dataset_id__in=application_dataset_id_list,
                                                       application_id=application_id).delete()
            # 插入
            QuerySet(ApplicationDatasetMapping).bulk_create(
                [ApplicationDatasetMapping(application_id=application_id, dataset_id=dataset_id) for dataset_id in
                 dataset_id_list]) if len(dataset_id_list) > 0 else None

        def list_dataset(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application = QuerySet(Application).get(id=self.data.get("application_id"))
            return select_list(get_file_content(
                os.path.join(PROJECT_DIR, "apps", "application", 'sql', 'list_application_dataset.sql')),
                [self.data.get('user_id') if self.data.get('user_id') == str(application.user_id) else None,
                 application.user_id, self.data.get('user_id')])

        @staticmethod
        def get_work_flow_model(instance):
            if 'nodes' not in instance.get('work_flow'):
                return
            nodes = instance.get('work_flow')['nodes']
            for node in nodes:
                if node['id'] == 'base-node':
                    node_data = node['properties']['node_data']
                    if 'stt_model_id' in node_data:
                        instance['stt_model_id'] = node_data['stt_model_id']
                    if 'tts_model_id' in node_data:
                        instance['tts_model_id'] = node_data['tts_model_id']
                    if 'stt_model_enable' in node_data:
                        instance['stt_model_enable'] = node_data['stt_model_enable']
                    if 'tts_model_enable' in node_data:
                        instance['tts_model_enable'] = node_data['tts_model_enable']
                    if 'tts_type' in node_data:
                        instance['tts_type'] = node_data['tts_type']
                    if 'tts_autoplay' in node_data:
                        instance['tts_autoplay'] = node_data['tts_autoplay']
                    if 'stt_autosend' in node_data:
                        instance['stt_autosend'] = node_data['stt_autosend']
                    if 'tts_model_params_setting' in node_data:
                        instance['tts_model_params_setting'] = node_data['tts_model_params_setting']
                    if 'file_upload_enable' in node_data:
                        instance['file_upload_enable'] = node_data['file_upload_enable']
                    if 'file_upload_setting' in node_data:
                        instance['file_upload_setting'] = node_data['file_upload_setting']
                    break

        def speech_to_text(self, file, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application_id = self.data.get('application_id')
            application = QuerySet(Application).filter(id=application_id).first()
            if application.stt_model_enable:
                model = get_model_instance_by_model_user_id(application.stt_model_id, application.user_id)
                text = model.speech_to_text(file)
                return text

        def text_to_speech(self, text, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application_id = self.data.get('application_id')
            application = QuerySet(Application).filter(id=application_id).first()
            if application.tts_model_enable:
                model = get_model_instance_by_model_user_id(application.tts_model_id, application.user_id,
                                                            **application.tts_model_params_setting)

                return model.text_to_speech(text)

        def play_demo_text(self, form_data, with_valid=True):
            text = '你好，这里是语音播放测试'
            if with_valid:
                self.is_valid(raise_exception=True)
            application_id = self.data.get('application_id')
            application = QuerySet(Application).filter(id=application_id).first()
            if 'tts_model_id' in form_data:
                tts_model_id = form_data.pop('tts_model_id')
            model = get_model_instance_by_model_user_id(tts_model_id, application.user_id, **form_data)
            return model.text_to_speech(text)

        def application_list(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            user_id = self.data.get('user_id')
            application_id = self.data.get('application_id')
            application = QuerySet(Application).get(id=application_id)

            application_user_id = user_id if user_id == str(application.user_id) else None

            if application_user_id is not None:
                all_applications = Application.objects.filter(user_id=application_user_id).exclude(id=application_id)
            else:
                all_applications = Application.objects.none()

            # 获取团队共享的应用
            shared_applications = Application.objects.filter(
                id__in=TeamMemberPermission.objects.filter(
                    auth_target_type='APPLICATION',
                    operate__contains=RawSQL("ARRAY['USE']", []),
                    member_id__team_id=application.user_id,
                    member_id__user_id=user_id
                ).values('target')
            )
            all_applications = all_applications.union(shared_applications)

            # 把应用的type为WORK_FLOW的应用放到最上面 然后再按名称排序
            serialized_data = ApplicationSerializerModel(all_applications, many=True).data
            application = sorted(serialized_data, key=lambda x: (x['type'] != 'WORK_FLOW', x['name']))
            return list(application)

        def get_application(self, app_id, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            if with_valid:
                self.is_valid()
            embed_application = QuerySet(Application).filter(id=app_id).first()
            if embed_application is None:
                raise AppApiException(500, _('Application does not exist'))
            if embed_application.type == ApplicationTypeChoices.WORK_FLOW:
                work_flow_version = QuerySet(WorkFlowVersion).filter(application_id=embed_application.id).order_by(
                    '-create_time')[0:1].first()
                if work_flow_version is not None:
                    embed_application.work_flow = work_flow_version.work_flow
            dataset_list = self.list_dataset(with_valid=False)
            mapping_dataset_id_list = [adm.dataset_id for adm in
                                       QuerySet(ApplicationDatasetMapping).filter(application_id=app_id)]
            dataset_id_list = [d.get('id') for d in
                               list(filter(lambda row: mapping_dataset_id_list.__contains__(row.get('id')),
                                           dataset_list))]
            self.update_search_node(embed_application.work_flow, [str(dataset.get('id')) for dataset in dataset_list])
            return {**ApplicationSerializer.Query.reset_application(ApplicationSerializerModel(embed_application).data),
                    'dataset_id_list': dataset_id_list}

    class ApplicationKeySerializerModel(serializers.ModelSerializer):
        class Meta:
            model = ApplicationApiKey
            fields = "__all__"

    class ApplicationKeySerializer(serializers.Serializer):
        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("User ID")))

        application_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("Application ID")))

        def is_valid(self, *, raise_exception=False):
            super().is_valid(raise_exception=True)
            application_id = self.data.get("application_id")
            application = QuerySet(Application).filter(id=application_id).first()
            if application is None:
                raise AppApiException(1001, _("Application does not exist"))

        def generate(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application_id = self.data.get("application_id")
            application = QuerySet(Application).filter(id=application_id).first()
            secret_key = 'application-' + hashlib.md5(str(uuid.uuid1()).encode()).hexdigest()
            application_api_key = ApplicationApiKey(id=uuid.uuid1(), secret_key=secret_key, user_id=application.user_id,
                                                    application_id=application_id)
            application_api_key.save()
            return ApplicationSerializer.ApplicationKeySerializerModel(application_api_key).data

        def list(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            application_id = self.data.get("application_id")
            return [ApplicationSerializer.ApplicationKeySerializerModel(application_api_key).data for
                    application_api_key in
                    QuerySet(ApplicationApiKey).filter(application_id=application_id)]

        class Edit(serializers.Serializer):
            is_active = serializers.BooleanField(required=False, error_messages=ErrMessage.boolean(_("Availability")))

            allow_cross_domain = serializers.BooleanField(required=False,
                                                          error_messages=ErrMessage.boolean(
                                                              _("Is cross-domain allowed")))

            cross_domain_list = serializers.ListSerializer(required=False,
                                                           child=serializers.CharField(required=True,
                                                                                       error_messages=ErrMessage.char(
                                                                                           _("Cross-domain address"))),
                                                           error_messages=ErrMessage.char(_("Cross-domain list")))

        class Operate(serializers.Serializer):
            application_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid(_("Application ID")))

            api_key_id = serializers.CharField(required=True, error_messages=ErrMessage.char(_("ApiKeyid")))

            def delete(self, with_valid=True):
                if with_valid:
                    self.is_valid(raise_exception=True)
                api_key_id = self.data.get("api_key_id")
                application_id = self.data.get('application_id')
                application_api_key = QuerySet(ApplicationApiKey).filter(id=api_key_id,
                                                                         application_id=application_id).first()
                del_application_api_key(application_api_key.secret_key)
                application_api_key.delete()

            def edit(self, instance, with_valid=True):
                if with_valid:
                    self.is_valid(raise_exception=True)
                    ApplicationSerializer.ApplicationKeySerializer.Edit(data=instance).is_valid(raise_exception=True)
                api_key_id = self.data.get("api_key_id")
                application_id = self.data.get('application_id')
                application_api_key = QuerySet(ApplicationApiKey).filter(id=api_key_id,
                                                                         application_id=application_id).first()
                if application_api_key is None:
                    raise AppApiException(500, _('APIKey does not exist'))
                if 'is_active' in instance and instance.get('is_active') is not None:
                    application_api_key.is_active = instance.get('is_active')
                if 'allow_cross_domain' in instance and instance.get('allow_cross_domain') is not None:
                    application_api_key.allow_cross_domain = instance.get('allow_cross_domain')
                if 'cross_domain_list' in instance and instance.get('cross_domain_list') is not None:
                    application_api_key.cross_domain_list = instance.get('cross_domain_list')
                application_api_key.save()
                # 写入缓存
                get_application_api_key(application_api_key.secret_key, False)

    class McpServers(serializers.Serializer):
        mcp_servers = serializers.JSONField(required=True)

        def get_mcp_servers(self, with_valid=True):
            if with_valid:
                self.is_valid(raise_exception=True)
            servers = json.loads(self.data.get('mcp_servers'))

            async def get_mcp_tools(servers):
                async with MultiServerMCPClient(servers) as client:
                    return client.get_tools()

            tools = []
            for server in servers:
                tools += [
                    {
                        'server': server,
                        'name': tool.name,
                        'description': tool.description,
                        'args_schema': tool.args_schema,
                    }
                    for tool in asyncio.run(get_mcp_tools({server: servers[server]}))]
            return tools