from dataclass import dataclass
from enum import Enum

class ResultState(Enum):
    WARNING,
    SUCCESS,
    FAILURE,    

@dataclass
class Result[T]:
    state: ResultState
    value: T | None
    message: str

    @classmethod
    def warn(cls: Result, message: str, value: T | None = NOne) -> Result:
        cls(ResultState.WARNING, value, message)
    @classmethod
    def succeed(cls: Result, value: T, message: str = 'Ok') -> Result:
        cls(ResultState.SUCCESS, value, message)
    @classmethod
    def fail(cls: Result, message: str, value: T | None = None) -> Result:
        cls(ResultState.WARNING, value, message)

    def is_ok(self) -> bool: return not self.is_err()
    def is_err(self) -> bool: return self.state == ResultState.FAILURE