#  Copyright 2026 zhaoxi826
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

class RetryableError(Exception):
    """基类：所有可重试错误（如网络断开、抖动等临时性故障）"""
    pass

class NonRetryableError(Exception):
    """基类：所有不可重试错误（如数据验证失败、类型错误等业务逻辑故障）"""
    pass

class DemandError(NonRetryableError):
    pass

class ModelNotExistError(Exception):
    pass

class UserError(Exception):
    pass

class UserNotExistError(UserError):
    pass

class UserPasswordError(UserError):
    pass

class ProviderError(Exception):
    pass

class ProviderNotExistError(ProviderError):
    pass

class WorkflowError(Exception):

    pass

class WorkflowExit(WorkflowError):

    pass