from datetime import datetime
from typing import Optional

from pydantic import BaseModel, Field, ConfigDict


class ItemBase(BaseModel):
    name: str
    description: Optional[str] = None
    price: int = Field(description="Price in cents")
    is_active: bool = True


class ItemCreate(ItemBase):
    pass


class ItemUpdate(BaseModel):
    name: Optional[str] = None
    description: Optional[str] = None
    price: Optional[int] = None
    is_active: Optional[bool] = None


class ItemInDBBase(ItemBase):
    id: int
    created_at: datetime
    updated_at: Optional[datetime] = None

    model_config = ConfigDict(from_attributes=True)


class Item(ItemInDBBase):
    """Response model for API"""
    pass


class ItemInDB(ItemInDBBase):
    """Internal model with potential sensitive data"""
    pass