from pydantic import BaseModel, Field
from typing import Optional

class UserBase(BaseModel):
    name: Optional[str] = Field(None, min_length=1, max_length=100, description="User's name")

class UserCreate(UserBase):
    class Config:
        schema_extra = {
            "example": {
                "name": "John Doe"
            }
        }

class User(UserBase):
    id: int
    
    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "id": 1,
                "name": "John Doe"
            }
        }