from pydantic import BaseModel, Field, EmailStr

class UserBase(BaseModel):
    username: str = Field(..., min_length=3, max_length=50, index=True, unique=True, description="User's username")
    email: EmailStr = Field(..., unique=True, description="User's email address")
    password: str = Field(..., min_length=8, description="User's password")
    is_active: bool = Field(True, description="Whether the user account is active")

    class Config:
        schema_extra = {
            "example": {
                "username": "johndoe",
                "email": "john@example.com",
                "password": "securepassword123",
                "is_active": True
            }
        }

class UserCreate(UserBase):
    pass

class UserResponse(UserBase):
    id: int = Field(..., description="User's unique identifier")

    class Config:
        orm_mode = True