from pydantic import BaseModel, Field
from typing import Optional

class UserBase(BaseModel):
    name: str = Field(..., index=True, description="Product name")
    brand: str = Field(..., description="Product brand")
    category: str = Field(..., description="Product category")
    size: str = Field(..., description="Product size")
    color: str = Field(..., description="Product color")
    price: float = Field(..., gt=0, description="Product price")
    description: Optional[str] = Field(None, description="Product description")
    stock_quantity: int = Field(default=0, ge=0, description="Available stock quantity")
    is_available: bool = Field(default=True, description="Product availability status")

class UserCreate(UserBase):
    class Config:
        schema_extra = {
            "example": {
                "name": "Classic T-Shirt",
                "brand": "BrandName",
                "category": "Clothing",
                "size": "M",
                "color": "Blue",
                "price": 29.99,
                "description": "Comfortable cotton t-shirt",
                "stock_quantity": 100,
                "is_available": True
            }
        }

class User(UserBase):
    id: int = Field(..., description="Product ID")

    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "id": 1,
                "name": "Classic T-Shirt",
                "brand": "BrandName",
                "category": "Clothing",
                "size": "M",
                "color": "Blue",
                "price": 29.99,
                "description": "Comfortable cotton t-shirt",
                "stock_quantity": 100,
                "is_available": True
            }
        }