"""
用户相关的 Pydantic Schema
"""
from pydantic import BaseModel, Field, EmailStr
from typing import Optional
from datetime import datetime


class UserBase(BaseModel):
    """用户基础 Schema"""
    username: str = Field(..., min_length=3, max_length=50, description="用户名")
    nickname: Optional[str] = Field(None, max_length=50, description="昵称")
    email: Optional[EmailStr] = Field(None, description="邮箱")
    phone: Optional[str] = Field(None, max_length=20, description="手机号")


class UserCreate(UserBase):
    """创建用户 Schema"""
    password: str = Field(..., min_length=6, max_length=50, description="密码")


class UserUpdate(BaseModel):
    """更新用户 Schema"""
    nickname: Optional[str] = None
    email: Optional[EmailStr] = None
    phone: Optional[str] = None
    avatar: Optional[str] = None


class UserResponse(UserBase):
    """用户响应 Schema"""
    id: int
    avatar: Optional[str] = None
    status: int
    is_superuser: int
    last_login_at: Optional[datetime] = None
    created_at: datetime

    class Config:
        from_attributes = True


class UserLogin(BaseModel):
    """用户登录 Schema"""
    username: str = Field(..., description="用户名")
    password: str = Field(..., description="密码")


class Token(BaseModel):
    """Token 响应 Schema"""
    access_token: str
    token_type: str = "bearer"
    user: UserResponse


class ChangePassword(BaseModel):
    """修改密码 Schema"""
    old_password: str = Field(..., description="旧密码")
    new_password: str = Field(..., min_length=6, max_length=50, description="新密码")