# app/schemas/token.py
from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime, timezone, timedelta

class Token(BaseModel):
    """令牌响应模型"""
    access_token: str
    token_type: str = "bearer"
    expires_in: Optional[int] = None
    refresh_token: Optional[str] = None

class TokenResponse(Token):
    """带用户信息的令牌响应"""
    user: dict

class TokenData(BaseModel):
    """令牌数据模型"""
    username: Optional[str] = None
    user_id: Optional[int] = None
    email: Optional[str] = None
    exp: Optional[int] = None
    iat: Optional[int] = None

class TokenPayload(BaseModel):
    """令牌载荷"""
    sub: Optional[str] = None
    exp: Optional[datetime] = None

class RefreshTokenRequest(BaseModel):
    """刷新令牌请求"""
    refresh_token: str

class TokenCreate(BaseModel):
    """创建令牌请求"""
    user_id: int
    username: str
    email: str

# 导出所有模型
__all__ = [
    "Token",
    "TokenResponse",
    "TokenData",
    "TokenPayload",
    "RefreshTokenRequest",
    "TokenCreate"
]