from __future__ import annotations
from abc import ABC, abstractmethod
from auto_media_publisher.utils.logger import get_logger
import tempfile
import os
import glob

class MediaGenerator(ABC):
    def __init__(self):
        self.logger = get_logger(self.__class__.__name__,"admin")
    

    @abstractmethod
    def generate(self):
        """所有子类都必须实现的主方法"""
        pass

    @classmethod
    def create_by_name(cls, name: str, *args, **kwargs):
        for subclass in cls.__subclasses__():
            if subclass.__name__.lower() == name.lower():
                return subclass(*args, **kwargs)
        raise ValueError(f"未找到名为 '{name}' 的子类")
    

    def cleanup_old_temp_files(self):
        temp_dir = tempfile.gettempdir()
        for temp_file in glob.glob(os.path.join(temp_dir, "*.ts")):
            try:
                os.unlink(temp_file)
                self.logger.info(f"Deleted old temp file: {temp_file}")
            except (PermissionError, FileNotFoundError):
                self.logger.error(f"Could not delete old temp file: {temp_file}")