use bevy::prelude::*;

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_systems(Update, mess_with_handles)
        .run();
}

fn mess_with_handles(
    mut commands: Commands,
    asset_server: Res<AssetServer>,
    mut images: ResMut<Assets<Image>>,
    mut state: Local<usize>,
    mut store1: Local<Option<Handle<Image>>>,
    mut store2: Local<Option<Handle<Image>>>,
) {
    match *state {
        0 => {
            let new_image = asset_server.load("whatever.png");
            *store1 = Some(new_image);
            *state = 1;
        }
        1 => {
            if asset_server.is_loaded(store1.as_ref().unwrap().id()) {
                *state = 2;
                // this results in `NotLoaded`
                *store2 = Some(images.get_strong_handle(store1.as_ref().unwrap().id()).unwrap());
                // this would result in `Loaded`
                // *store2 = Some(store1.as_ref().unwrap().clone());
            }
        }
        2 => {
            *store1 = Some(store1.as_ref().unwrap().clone_weak());
            *state = 3;
        }
        _ => {
            *state = 4;
            commands.send_event(AppExit::default());
        }
    }

    let id = store1.as_ref().unwrap().id();
    println!(
        "[{}]: load state: {:?}, available: {:?}",
        *state,
        asset_server.load_state(id),
        images.get(id).is_some()
    );
}