from pydantic import BaseModel
from typing import Optional
from datetime import datetime

class PersonImageBase(BaseModel):
    """人物形象基础模型"""
    user_id: int
    image_url: str
    is_default: bool = False

class PersonImageCreate(PersonImageBase):
    """创建人物形象请求模型"""
    pass

class PersonImageUpdate(PersonImageBase):
    """更新人物形象请求模型"""
    image_url: Optional[str] = None
    is_default: Optional[bool] = None

class PersonImage(PersonImageBase):
    """人物形象响应模型"""
    id: int
    user_id: int
    create_time: datetime

    class Config:
        from_attributes = True