from sqlmodel import SQLModel
from typing import Optional


class ClientCreate(SQLModel):
    tin_number: int
    names: str
    phone_number: str


class ClientUpdate(SQLModel):
    tin_number: Optional[int] = None
    names: Optional[str] = None
    phone_number: Optional[str] = None


class SupplierCreate(SQLModel):
    tin_number: int
    names: str
    phone_number: str


class SupplierUpdate(ClientUpdate):
    tin_number: Optional[int] = None
    names: Optional[str] = None
    phone_number: Optional[str] = None


class ProductCreate(SQLModel):
    product_code: str
    product_name: str
    purchase_price: int


class ProductUpdate(SQLModel):
    product_code: Optional[str] = None
    product_name: Optional[str] = None
    purchase_price: Optional[int] = None