from datetime import datetime
from typing import Optional

from pydantic import BaseModel, Field


# Shared properties
class ItemBase(BaseModel):
    title: str = Field(..., min_length=1, max_length=255, example="My Item")
    description: Optional[str] = Field(
        None, example="A detailed description of my item"
    )
    is_active: Optional[bool] = Field(True, example=True)


# Properties to receive on item creation
class ItemCreate(ItemBase):
    pass


# Properties to receive on item update
class ItemUpdate(BaseModel):
    title: Optional[str] = Field(
        None, min_length=1, max_length=255, example="Updated Item Title"
    )
    description: Optional[str] = Field(None, example="Updated description")
    is_active: Optional[bool] = Field(None, example=True)


# Properties shared by models stored in DB
class ItemInDBBase(ItemBase):
    id: int
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True


# Properties to return to client
class Item(ItemInDBBase):
    pass


# Properties stored in DB
class ItemInDB(ItemInDBBase):
    pass