from typing import List, Optional

from pydantic import BaseModel


class CategoryBase(BaseModel):
    """Base schema for category data."""

    name: str
    description: Optional[str] = None


class CategoryCreate(CategoryBase):
    """Schema for creating a new category."""

    pass


class CategoryUpdate(BaseModel):
    """Schema for updating a category."""

    name: Optional[str] = None
    description: Optional[str] = None


class ProductInCategory(BaseModel):
    """Schema for product data in category responses."""

    id: int
    name: str
    price: float

    class Config:
        from_attributes = True


class CategoryResponse(CategoryBase):
    """Schema for category responses."""

    id: int

    class Config:
        from_attributes = True


class CategoryWithProducts(CategoryResponse):
    """Schema for category with related products."""

    products: List[ProductInCategory] = []

    class Config:
        from_attributes = True