# -*- coding: utf-8 -*-
"""数据实体模型"""

from dataclasses import dataclass
from datetime import datetime
from typing import Optional


@dataclass
class SimulationResult:
    """模拟结果实体"""
    expression: str
    time_consuming: float
    status: str  # 'ok' or 'err'
    timestamp: str
    alpha_id: Optional[str] = None
    message: Optional[str] = None


@dataclass
class AlphaExpression:
    """Alpha表达式实体"""
    expression: str
    unused: bool = True
    created_time: Optional[datetime] = None


@dataclass
class TokenInfo:
    """认证令牌信息"""
    token: str
    expiry: int