class RenderWorkerError(Exception):
    """RenderWorker基础异常类"""
    def __init__(self, message: str, error_code: str = None):
        super().__init__(message)
        self.message = message
        self.error_code = error_code or self.__class__.__name__

class ConfigurationError(RenderWorkerError):
    """配置错误"""
    pass

class TemplateError(RenderWorkerError):
    """模板相关错误"""
    pass

class TemplateNotFoundError(TemplateError):
    """模板未找到错误"""
    pass

class TemplateValidationError(TemplateError):
    """模板验证错误"""
    pass

class TaskError(RenderWorkerError):
    """任务处理错误"""
    pass

class TaskValidationError(TaskError):
    """任务参数验证错误"""
    pass

class RenderError(RenderWorkerError):
    """渲染处理错误"""
    pass

class FFmpegError(RenderError):
    """FFmpeg执行错误"""
    def __init__(self, message: str, command: list = None, return_code: int = None, stderr: str = None):
        super().__init__(message)
        self.command = command
        self.return_code = return_code
        self.stderr = stderr

class EffectError(RenderError):
    """效果处理错误"""
    def __init__(self, message: str, effect_name: str = None, effect_params: str = None):
        super().__init__(message)
        self.effect_name = effect_name
        self.effect_params = effect_params

class StorageError(RenderWorkerError):
    """存储相关错误"""
    pass

class APIError(RenderWorkerError):
    """API调用错误"""
    def __init__(self, message: str, status_code: int = None, response_body: str = None):
        super().__init__(message)
        self.status_code = status_code
        self.response_body = response_body

class ResourceError(RenderWorkerError):
    """资源相关错误"""
    pass

class ResourceNotFoundError(ResourceError):
    """资源未找到错误"""
    pass

class DownloadError(ResourceError):
    """下载错误"""
    pass