from abc import ABC, abstractmethod


class NNExecutor(ABC):
    """
    Entry point of model execution in a certain pod.
    """

    @classmethod
    def from_config(cls, nn_config, **kwargs):
        pass

    def __init__(self,
             backend_model,
             backend_tokenizer,
             init_args,
             **kwargs):
        self.backend_model = backend_model
        self.backend_tokenizer = backend_tokenizer
        self.init_args = init_args
        self.kwargs = kwargs


class LLMExecutor(NNExecutor):

    @classmethod
    def from_config(cls, nn_config: dict, **kwargs):
        """
        Args:
            nn_config
        """

        # TODO
        pass

    @abstractmethod
    def sft(self, args=None, callbacks=None, **kwargs):
        """
        The entry point of SFT execution in a certain pod.
        """
        raise NotImplementedError(f"{self.__class__.__name__} does not support SFT.")

    @abstractmethod
    def rl_tuning(self, args=None, callbacks=None, **kwargs):
        """
        The entry point of SFT execution in a certain pod.
        """
        raise NotImplementedError(f"{self.__class__.__name__} does not support RL-Tuning.")

    def batch_inference(self, args, **kwargs):
        pass

    @abstractmethod
    def inference(self, data, **kwargs):
        """
        The entry point of inference. Usually for local invokers or model services.
        """
        raise NotImplementedError()


class HfLLMExecutor(NNExecutor):

    pass


class DeepKeExecutor(NNExecutor):

    pass