from typing import Optional

from rest_framework.exceptions import APIException

class ToolInstanceBaseException(APIException):

def __init__(

self,

detail: Optional[str] = None,

code: Optional[int] = None,

tool_name: Optional[str] = None,

) -> None:

detail = detail or self.default_detail

if tool_name is not None:

detail = f"{detail} Tool: {tool_name}"

super().__init__(detail, code)

class ToolFunctionIsMandatory(ToolInstanceBaseException):

status_code = 400

default_detail = "Tool function is mandatory."

class ToolDoesNotExist(ToolInstanceBaseException):

status_code = 400

default_detail = "Tool doesn't exist."

class FetchToolListFailed(ToolInstanceBaseException):

status_code = 400

default_detail = "Failed to fetch tool list."

class ToolInstantiationError(ToolInstanceBaseException):

status_code = 500

default_detail = "Error instantiating tool."

class BadRequestException(ToolInstanceBaseException):

status_code = 400

default_detail = "Invalid input."

class ToolSettingValidationError(APIException):

status_code = 400

default_detail = "Error while validating tool's setting."