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import json
import logging

from httpx import get

from core.model_runtime.utils.encoders import jsonable_encoder
from core.tools.entities.common_entities import I18nObject
from core.tools.entities.tool_bundle import ApiBasedToolBundle
from core.tools.entities.tool_entities import (
    ApiProviderAuthType,
    ApiProviderSchemaType,
    ToolCredentialsOption,
    ToolProviderCredentials,
)
from core.tools.entities.user_entities import UserTool, UserToolProvider
from core.tools.errors import ToolNotFoundError, ToolProviderCredentialValidationError, ToolProviderNotFoundError
from core.tools.provider.api_tool_provider import ApiBasedToolProviderController
from core.tools.provider.builtin._positions import BuiltinToolProviderSort
from core.tools.provider.tool_provider import ToolProviderController
from core.tools.tool_manager import ToolManager
from core.tools.utils.configuration import ToolConfigurationManager
from core.tools.utils.parser import ApiBasedToolSchemaParser
from extensions.ext_database import db
from models.tools import ApiToolProvider, BuiltinToolProvider
from services.model_provider_service import ModelProviderService
from services.tools_transform_service import ToolTransformService

logger = logging.getLogger(__name__)


class ToolManageService:
    @staticmethod
    def list_tool_providers(user_id: str, tenant_id: str):
        """

            list tool providers



            :return: the list of tool providers

        """
        providers = ToolManager.user_list_providers(
            user_id, tenant_id
        )

        # add icon
        for provider in providers:
            ToolTransformService.repack_provider(provider)

        result = [provider.to_dict() for provider in providers]

        return result
    
    @staticmethod
    def list_builtin_tool_provider_tools(

        user_id: str, tenant_id: str, provider: str

    ) -> list[UserTool]:
        """

            list builtin tool provider tools

        """
        provider_controller: ToolProviderController = ToolManager.get_builtin_provider(provider)
        tools = provider_controller.get_tools()

        tool_provider_configurations = ToolConfigurationManager(tenant_id=tenant_id, provider_controller=provider_controller)
        # check if user has added the provider
        builtin_provider: BuiltinToolProvider = db.session.query(BuiltinToolProvider).filter(
            BuiltinToolProvider.tenant_id == tenant_id,
            BuiltinToolProvider.provider == provider,
        ).first()

        credentials = {}
        if builtin_provider is not None:
            # get credentials
            credentials = builtin_provider.credentials
            credentials = tool_provider_configurations.decrypt_tool_credentials(credentials)

        result = []
        for tool in tools:
            result.append(ToolTransformService.tool_to_user_tool(
                tool=tool, credentials=credentials, tenant_id=tenant_id
            ))

        return result
    
    @staticmethod
    def list_builtin_provider_credentials_schema(

        provider_name

    ):
        """

            list builtin provider credentials schema



            :return: the list of tool providers

        """
        provider = ToolManager.get_builtin_provider(provider_name)
        return jsonable_encoder([
            v for _, v in (provider.credentials_schema or {}).items()
        ])

    @staticmethod
    def parser_api_schema(schema: str) -> list[ApiBasedToolBundle]:
        """

            parse api schema to tool bundle

        """
        try:
            warnings = {}
            try:
                tool_bundles, schema_type = ApiBasedToolSchemaParser.auto_parse_to_tool_bundle(schema, warning=warnings)
            except Exception as e:
                raise ValueError(f'invalid schema: {str(e)}')
            
            credentials_schema = [
                ToolProviderCredentials(
                    name='auth_type',
                    type=ToolProviderCredentials.CredentialsType.SELECT,
                    required=True,
                    default='none',
                    options=[
                        ToolCredentialsOption(value='none', label=I18nObject(
                            en_US='None',
                            zh_Hans='无'
                        )),
                        ToolCredentialsOption(value='api_key', label=I18nObject(
                            en_US='Api Key',
                            zh_Hans='Api Key'
                        )),
                    ],
                    placeholder=I18nObject(
                        en_US='Select auth type',
                        zh_Hans='选择认证方式'
                    )
                ),
                ToolProviderCredentials(
                    name='api_key_header',
                    type=ToolProviderCredentials.CredentialsType.TEXT_INPUT,
                    required=False,
                    placeholder=I18nObject(
                        en_US='Enter api key header',
                        zh_Hans='输入 api key header,如:X-API-KEY'
                    ),
                    default='api_key',
                    help=I18nObject(
                        en_US='HTTP header name for api key',
                        zh_Hans='HTTP 头部字段名,用于传递 api key'
                    )
                ),
                ToolProviderCredentials(
                    name='api_key_value',
                    type=ToolProviderCredentials.CredentialsType.TEXT_INPUT,
                    required=False,
                    placeholder=I18nObject(
                        en_US='Enter api key',
                        zh_Hans='输入 api key'
                    ),
                    default=''
                ),
            ]

            return jsonable_encoder({
                'schema_type': schema_type,
                'parameters_schema': tool_bundles,
                'credentials_schema': credentials_schema,
                'warning': warnings
            })
        except Exception as e:
            raise ValueError(f'invalid schema: {str(e)}')

    @staticmethod
    def convert_schema_to_tool_bundles(schema: str, extra_info: dict = None) -> list[ApiBasedToolBundle]:
        """

            convert schema to tool bundles



            :return: the list of tool bundles, description

        """
        try:
            tool_bundles = ApiBasedToolSchemaParser.auto_parse_to_tool_bundle(schema, extra_info=extra_info)
            return tool_bundles
        except Exception as e:
            raise ValueError(f'invalid schema: {str(e)}')

    @staticmethod
    def create_api_tool_provider(

        user_id: str, tenant_id: str, provider_name: str, icon: dict, credentials: dict,

        schema_type: str, schema: str, privacy_policy: str, custom_disclaimer: str

    ):
        """

            create api tool provider

        """
        if schema_type not in [member.value for member in ApiProviderSchemaType]:
            raise ValueError(f'invalid schema type {schema}')
        
        # check if the provider exists
        provider: ApiToolProvider = db.session.query(ApiToolProvider).filter(
            ApiToolProvider.tenant_id == tenant_id,
            ApiToolProvider.name == provider_name,
        ).first()

        if provider is not None:
            raise ValueError(f'provider {provider_name} already exists')

        # parse openapi to tool bundle
        extra_info = {}
        # extra info like description will be set here
        tool_bundles, schema_type = ToolManageService.convert_schema_to_tool_bundles(schema, extra_info)
        
        if len(tool_bundles) > 100:
            raise ValueError('the number of apis should be less than 100')

        # create db provider
        db_provider = ApiToolProvider(
            tenant_id=tenant_id,
            user_id=user_id,
            name=provider_name,
            icon=json.dumps(icon),
            schema=schema,
            description=extra_info.get('description', ''),
            schema_type_str=schema_type,
            tools_str=json.dumps(jsonable_encoder(tool_bundles)),
            credentials_str={},
            privacy_policy=privacy_policy,
            custom_disclaimer=custom_disclaimer
        )

        if 'auth_type' not in credentials:
            raise ValueError('auth_type is required')

        # get auth type, none or api key
        auth_type = ApiProviderAuthType.value_of(credentials['auth_type'])

        # create provider entity
        provider_controller = ApiBasedToolProviderController.from_db(db_provider, auth_type)
        # load tools into provider entity
        provider_controller.load_bundled_tools(tool_bundles)

        # encrypt credentials
        tool_configuration = ToolConfigurationManager(tenant_id=tenant_id, provider_controller=provider_controller)
        encrypted_credentials = tool_configuration.encrypt_tool_credentials(credentials)
        db_provider.credentials_str = json.dumps(encrypted_credentials)

        db.session.add(db_provider)
        db.session.commit()

        return { 'result': 'success' }
    
    @staticmethod
    def get_api_tool_provider_remote_schema(

        user_id: str, tenant_id: str, url: str

    ):
        """

            get api tool provider remote schema

        """
        headers = {
            "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0",
            "Accept": "*/*",
        }

        try:
            response = get(url, headers=headers, timeout=10)
            if response.status_code != 200:
                raise ValueError(f'Got status code {response.status_code}')
            schema = response.text

            # try to parse schema, avoid SSRF attack
            ToolManageService.parser_api_schema(schema)
        except Exception as e:
            logger.error(f"parse api schema error: {str(e)}")
            raise ValueError('invalid schema, please check the url you provided')
        
        return {
            'schema': schema
        }

    @staticmethod
    def list_api_tool_provider_tools(

        user_id: str, tenant_id: str, provider: str

    ) -> list[UserTool]:
        """

            list api tool provider tools

        """
        provider: ApiToolProvider = db.session.query(ApiToolProvider).filter(
            ApiToolProvider.tenant_id == tenant_id,
            ApiToolProvider.name == provider,
        ).first()

        if provider is None:
            raise ValueError(f'you have not added provider {provider}')
        
        return [
            ToolTransformService.tool_to_user_tool(tool_bundle) for tool_bundle in provider.tools
        ]

    @staticmethod
    def update_builtin_tool_provider(

        user_id: str, tenant_id: str, provider_name: str, credentials: dict

    ):
        """

            update builtin tool provider

        """
        # get if the provider exists
        provider: BuiltinToolProvider = db.session.query(BuiltinToolProvider).filter(
            BuiltinToolProvider.tenant_id == tenant_id,
            BuiltinToolProvider.provider == provider_name,
        ).first()

        try: 
            # get provider
            provider_controller = ToolManager.get_builtin_provider(provider_name)
            if not provider_controller.need_credentials:
                raise ValueError(f'provider {provider_name} does not need credentials')
            tool_configuration = ToolConfigurationManager(tenant_id=tenant_id, provider_controller=provider_controller)
            # get original credentials if exists
            if provider is not None:
                original_credentials = tool_configuration.decrypt_tool_credentials(provider.credentials)
                masked_credentials = tool_configuration.mask_tool_credentials(original_credentials)
                # check if the credential has changed, save the original credential
                for name, value in credentials.items():
                    if name in masked_credentials and value == masked_credentials[name]:
                        credentials[name] = original_credentials[name]
            # validate credentials
            provider_controller.validate_credentials(credentials)
            # encrypt credentials
            credentials = tool_configuration.encrypt_tool_credentials(credentials)
        except (ToolProviderNotFoundError, ToolNotFoundError, ToolProviderCredentialValidationError) as e:
            raise ValueError(str(e))

        if provider is None:
            # create provider
            provider = BuiltinToolProvider(
                tenant_id=tenant_id,
                user_id=user_id,
                provider=provider_name,
                encrypted_credentials=json.dumps(credentials),
            )

            db.session.add(provider)
            db.session.commit()

        else:
            provider.encrypted_credentials = json.dumps(credentials)
            db.session.add(provider)
            db.session.commit()

            # delete cache
            tool_configuration.delete_tool_credentials_cache()

        return { 'result': 'success' }
    
    @staticmethod
    def get_builtin_tool_provider_credentials(

        user_id: str, tenant_id: str, provider: str

    ):
        """

            get builtin tool provider credentials

        """
        provider: BuiltinToolProvider = db.session.query(BuiltinToolProvider).filter(
            BuiltinToolProvider.tenant_id == tenant_id,
            BuiltinToolProvider.provider == provider,
        ).first()

        if provider is None:
            return {}
        
        provider_controller = ToolManager.get_builtin_provider(provider.provider)
        tool_configuration = ToolConfigurationManager(tenant_id=tenant_id, provider_controller=provider_controller)
        credentials = tool_configuration.decrypt_tool_credentials(provider.credentials)
        credentials = tool_configuration.mask_tool_credentials(credentials)
        return credentials

    @staticmethod
    def update_api_tool_provider(

        user_id: str, tenant_id: str, provider_name: str, original_provider: str, icon: dict, credentials: dict, 

        schema_type: str, schema: str, privacy_policy: str, custom_disclaimer: str

    ):
        """

            update api tool provider

        """
        if schema_type not in [member.value for member in ApiProviderSchemaType]:
            raise ValueError(f'invalid schema type {schema}')
        
        # check if the provider exists
        provider: ApiToolProvider = db.session.query(ApiToolProvider).filter(
            ApiToolProvider.tenant_id == tenant_id,
            ApiToolProvider.name == original_provider,
        ).first()

        if provider is None:
            raise ValueError(f'api provider {provider_name} does not exists')

        # parse openapi to tool bundle
        extra_info = {}
        # extra info like description will be set here
        tool_bundles, schema_type = ToolManageService.convert_schema_to_tool_bundles(schema, extra_info)
        
        # update db provider
        provider.name = provider_name
        provider.icon = json.dumps(icon)
        provider.schema = schema
        provider.description = extra_info.get('description', '')
        provider.schema_type_str = ApiProviderSchemaType.OPENAPI.value
        provider.tools_str = json.dumps(jsonable_encoder(tool_bundles))
        provider.privacy_policy = privacy_policy
        provider.custom_disclaimer = custom_disclaimer

        if 'auth_type' not in credentials:
            raise ValueError('auth_type is required')

        # get auth type, none or api key
        auth_type = ApiProviderAuthType.value_of(credentials['auth_type'])

        # create provider entity
        provider_controller = ApiBasedToolProviderController.from_db(provider, auth_type)
        # load tools into provider entity
        provider_controller.load_bundled_tools(tool_bundles)

        # get original credentials if exists
        tool_configuration = ToolConfigurationManager(tenant_id=tenant_id, provider_controller=provider_controller)

        original_credentials = tool_configuration.decrypt_tool_credentials(provider.credentials)
        masked_credentials = tool_configuration.mask_tool_credentials(original_credentials)
        # check if the credential has changed, save the original credential
        for name, value in credentials.items():
            if name in masked_credentials and value == masked_credentials[name]:
                credentials[name] = original_credentials[name]

        credentials = tool_configuration.encrypt_tool_credentials(credentials)
        provider.credentials_str = json.dumps(credentials)

        db.session.add(provider)
        db.session.commit()

        # delete cache
        tool_configuration.delete_tool_credentials_cache()

        return { 'result': 'success' }
    
    @staticmethod
    def delete_builtin_tool_provider(

        user_id: str, tenant_id: str, provider_name: str

    ):
        """

            delete tool provider

        """
        provider: BuiltinToolProvider = db.session.query(BuiltinToolProvider).filter(
            BuiltinToolProvider.tenant_id == tenant_id,
            BuiltinToolProvider.provider == provider_name,
        ).first()

        if provider is None:
            raise ValueError(f'you have not added provider {provider_name}')
        
        db.session.delete(provider)
        db.session.commit()

        # delete cache
        provider_controller = ToolManager.get_builtin_provider(provider_name)
        tool_configuration = ToolConfigurationManager(tenant_id=tenant_id, provider_controller=provider_controller)
        tool_configuration.delete_tool_credentials_cache()

        return { 'result': 'success' }
    
    @staticmethod
    def get_builtin_tool_provider_icon(

        provider: str

    ):
        """

            get tool provider icon and it's mimetype

        """
        icon_path, mime_type = ToolManager.get_builtin_provider_icon(provider)
        with open(icon_path, 'rb') as f:
            icon_bytes = f.read()

        return icon_bytes, mime_type
    
    @staticmethod
    def get_model_tool_provider_icon(

        provider: str

    ):
        """

            get tool provider icon and it's mimetype

        """
        
        service = ModelProviderService()
        icon_bytes, mime_type = service.get_model_provider_icon(provider=provider, icon_type='icon_small', lang='en_US')

        if icon_bytes is None:
            raise ValueError(f'provider {provider} does not exists')

        return icon_bytes, mime_type
    
    @staticmethod
    def list_model_tool_provider_tools(

        user_id: str, tenant_id: str, provider: str

    ) -> list[UserTool]:
        """

            list model tool provider tools

        """
        provider_controller = ToolManager.get_model_provider(tenant_id=tenant_id, provider_name=provider)
        tools = provider_controller.get_tools(user_id=user_id, tenant_id=tenant_id)

        result = [
            UserTool(
                author=tool.identity.author,
                name=tool.identity.name,
                label=tool.identity.label,
                description=tool.description.human,
                parameters=tool.parameters or []
            ) for tool in tools
        ]

        return jsonable_encoder(result)
    
    @staticmethod
    def delete_api_tool_provider(

        user_id: str, tenant_id: str, provider_name: str

    ):
        """

            delete tool provider

        """
        provider: ApiToolProvider = db.session.query(ApiToolProvider).filter(
            ApiToolProvider.tenant_id == tenant_id,
            ApiToolProvider.name == provider_name,
        ).first()

        if provider is None:
            raise ValueError(f'you have not added provider {provider_name}')
        
        db.session.delete(provider)
        db.session.commit()

        return { 'result': 'success' }
    
    @staticmethod
    def get_api_tool_provider(

        user_id: str, tenant_id: str, provider: str

    ):
        """

            get api tool provider

        """
        return ToolManager.user_get_api_provider(provider=provider, tenant_id=tenant_id)
    
    @staticmethod
    def test_api_tool_preview(

        tenant_id: str, 

        provider_name: str,

        tool_name: str, 

        credentials: dict, 

        parameters: dict, 

        schema_type: str, 

        schema: str

    ):
        """

            test api tool before adding api tool provider

        """
        if schema_type not in [member.value for member in ApiProviderSchemaType]:
            raise ValueError(f'invalid schema type {schema_type}')
        
        try:
            tool_bundles, _ = ApiBasedToolSchemaParser.auto_parse_to_tool_bundle(schema)
        except Exception as e:
            raise ValueError('invalid schema')
        
        # get tool bundle
        tool_bundle = next(filter(lambda tb: tb.operation_id == tool_name, tool_bundles), None)
        if tool_bundle is None:
            raise ValueError(f'invalid tool name {tool_name}')
        
        db_provider: ApiToolProvider = db.session.query(ApiToolProvider).filter(
            ApiToolProvider.tenant_id == tenant_id,
            ApiToolProvider.name == provider_name,
        ).first()

        if not db_provider:
            # create a fake db provider
            db_provider = ApiToolProvider(
                tenant_id='', user_id='', name='', icon='',
                schema=schema,
                description='',
                schema_type_str=ApiProviderSchemaType.OPENAPI.value,
                tools_str=json.dumps(jsonable_encoder(tool_bundles)),
                credentials_str=json.dumps(credentials),
            )

        if 'auth_type' not in credentials:
            raise ValueError('auth_type is required')

        # get auth type, none or api key
        auth_type = ApiProviderAuthType.value_of(credentials['auth_type'])

        # create provider entity
        provider_controller = ApiBasedToolProviderController.from_db(db_provider, auth_type)
        # load tools into provider entity
        provider_controller.load_bundled_tools(tool_bundles)

        # decrypt credentials
        if db_provider.id:
            tool_configuration = ToolConfigurationManager(
                tenant_id=tenant_id, 
                provider_controller=provider_controller
            )
            decrypted_credentials = tool_configuration.decrypt_tool_credentials(credentials)
            # check if the credential has changed, save the original credential
            masked_credentials = tool_configuration.mask_tool_credentials(decrypted_credentials)
            for name, value in credentials.items():
                if name in masked_credentials and value == masked_credentials[name]:
                    credentials[name] = decrypted_credentials[name]

        try:
            provider_controller.validate_credentials_format(credentials)
            # get tool
            tool = provider_controller.get_tool(tool_name)
            tool = tool.fork_tool_runtime(meta={
                'credentials': credentials,
                'tenant_id': tenant_id,
            })
            result = tool.validate_credentials(credentials, parameters)
        except Exception as e:
            return { 'error': str(e) }
        
        return { 'result': result or 'empty response' }
    
    @staticmethod
    def list_builtin_tools(

        user_id: str, tenant_id: str

    ) -> list[UserToolProvider]:
        """

            list builtin tools

        """
        # get all builtin providers
        provider_controllers = ToolManager.list_builtin_providers()

        # get all user added providers
        db_providers: list[BuiltinToolProvider] = db.session.query(BuiltinToolProvider).filter(
            BuiltinToolProvider.tenant_id == tenant_id
        ).all() or []

        # find provider
        find_provider = lambda provider: next(filter(lambda db_provider: db_provider.provider == provider, db_providers), None)

        result: list[UserToolProvider] = []

        for provider_controller in provider_controllers:
            # convert provider controller to user provider
            user_builtin_provider = ToolTransformService.builtin_provider_to_user_provider(
                provider_controller=provider_controller,
                db_provider=find_provider(provider_controller.identity.name),
                decrypt_credentials=True
            )

            # add icon
            ToolTransformService.repack_provider(user_builtin_provider)

            tools = provider_controller.get_tools()
            for tool in tools:
                user_builtin_provider.tools.append(ToolTransformService.tool_to_user_tool(
                    tenant_id=tenant_id,
                    tool=tool, 
                    credentials=user_builtin_provider.original_credentials, 
                ))

            result.append(user_builtin_provider)

        return BuiltinToolProviderSort.sort(result)
    
    @staticmethod
    def list_api_tools(

        user_id: str, tenant_id: str

    ) -> list[UserToolProvider]:
        """

            list api tools

        """
        # get all api providers
        db_providers: list[ApiToolProvider] = db.session.query(ApiToolProvider).filter(
            ApiToolProvider.tenant_id == tenant_id
        ).all() or []

        result: list[UserToolProvider] = []

        for provider in db_providers:
            # convert provider controller to user provider
            provider_controller = ToolTransformService.api_provider_to_controller(db_provider=provider)
            user_provider = ToolTransformService.api_provider_to_user_provider(
                provider_controller,
                db_provider=provider,
                decrypt_credentials=True
            )

            # add icon
            ToolTransformService.repack_provider(user_provider)

            tools = provider_controller.get_tools(
                user_id=user_id, tenant_id=tenant_id
            )

            for tool in tools:
                user_provider.tools.append(ToolTransformService.tool_to_user_tool(
                    tenant_id=tenant_id,
                    tool=tool, 
                    credentials=user_provider.original_credentials, 
                ))

            result.append(user_provider)

        return result