use owl::{db::model::person::Person, prelude::*};

#[model]
#[derive(Debug)]
pub struct Car {
    pub id: Id,
    pub price: u32,
    pub driver: IdRef<Person>,
}

pub fn main() {
    env_logger::init();

    // Init
    let db = Database::in_memory();

    let per = Person::new_id("perso", "P1", "");
    let per2: Person = Person::new_id("perso2", "P2", "");

    // Save
    let car = Car {
        id: Id::new_ulid(),
        price: 1000,
        driver: per.reference(),
    };
    db.save(per);
    let per2 = db.save(per2);
    let mut car = db.save(car);

    println!(
        "P1 has {} cars",
        db.query(|car: &Car| {
            car.driver
                .dereference(&db)
                .read()
                .first_name
                .current()
                .unwrap()
                .as_str()
                == "P1"
        })
        .iter()
        .count()
    );

    car.write(&db, |car| {
        car.driver = per2.reference();
    });

    println!(
        "P1 has {} cars",
        db.query(|car: &Car| {
            car.driver
                .try_dereference(&db)
                .map(|x| x.read().first_name.current().unwrap().as_str() == "P1")
                .unwrap_or(false)
        })
        .iter()
        .count()
    );
}