from abc import abstractmethod


class Advanceable:
    def __init__(self) -> None:
        self.reset()

    def advance(self, dt: float):
        """Advances the simulation data in time.

        Args:
            dt (float): The step in time to make.
        """
        self.__t += dt
        self._on_step(dt)

    def advance_to(self, t: float):
        """Advances the simulation data to a new point in time.

        Args:
            t (float): The target point in time.
        """
        assert t > self.__t, 'Advanceable can only move forward in time.'

        self.advance(t - self.__t)

    def reset(self):
        """
        Reset the Avanceable object to its initial state.
        """
        self.__t = 0
        self._on_reset()

    @abstractmethod
    def _on_step(self, dt: float):
        pass

    @abstractmethod
    def _on_reset(self):
        pass

    def get_time(self) -> float:
        """
        Returns:
            float: Returns the current time of the Advanceable.
        """
        return self.__t