from datetime import datetime
from typing import Optional

from pydantic import BaseModel, Field


# Shared properties
class ProductBase(BaseModel):
    name: Optional[str] = None
    description: Optional[str] = None
    price: Optional[float] = None
    stock: Optional[int] = None
    image_url: Optional[str] = None


# Properties to receive on product creation
class ProductCreate(ProductBase):
    name: str
    price: float = Field(..., gt=0)
    stock: int = Field(..., ge=0)


# Properties to receive on product update
class ProductUpdate(ProductBase):
    pass


class ProductInDBBase(ProductBase):
    id: int
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True


# Additional properties to return via API
class Product(ProductInDBBase):
    pass


# Additional properties stored in DB
class ProductInDB(ProductInDBBase):
    pass