import datetime

from sqlmodel import Field, SQLModel


class Car(SQLModel, table=True):
    id: int | None = Field(default=None, primary_key=True)
    id_string: str = Field(nullable=False, index=True, unique=True)


class FuelItem(SQLModel, table=True):
    id: int | None = Field(default=None, primary_key=True)
    car_id: int | None = Field(default=None, foreign_key="car.id", unique_items=True)
    date: datetime.date = Field(nullable=False, index=True, unique_items=True)
    odometer_reading: float = Field(nullable=False)
    fuel_fill: float = Field(nullable=False)