use enum_derived::Rand;

#[derive(Rand)]
struct Weather {
    wind_speed: u8,
    #[custom_rand(rand_temp)]
    temperature: f32,
    cloudy: bool
}

#[derive(Rand)]
enum TravelLog {
    Airplane {
        weather: Weather,
        altitude: u16
    },
    Boat(
        Weather,
        #[custom_rand()]
        u32,
    ),
    #[custom_rand(always_has_sunroof)]
    Car {
        has_sunroof: bool,
    },
    #[weight(3)]
    SpaceShip,
}

fn main() {
    let travel_log = TravelLog::rand();
}

fn always_has_sunroof() -> TravelLog {
    TravelLog::Car { has_sunroof: true }
}

fn rand_boat_speed() -> u32 {
    thread_rng().gen_range(5..50)
}

fn rand_temp() -> f32 {
   thread_rng().gen_range(-20.0..120.0)
}

use rand::{thread_rng, Rng};