//local shortcuts
use bevy_cobweb::prelude::*;
use crate::*;

//third-party shortcuts
use bevy::prelude::*;

//standard shortcuts

//-------------------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------------------------

fn on_resource_mutation(mut c: Commands) -> RevokeToken
{
    c.react().on_revokable(resource_mutation::<TestReactRes>(), update_test_recorder_with_resource)
}

fn on_resource_mutation_once(mut c: Commands) -> RevokeToken
{
    c.react().once(resource_mutation::<TestReactRes>(), update_test_recorder_with_resource)
}

//-------------------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------------------------

#[test]
fn test_resource_mutation()
{
    // setup
    let mut app = App::new();
    app.add_plugins(ReactPlugin)
        .insert_react_resource(TestReactRes::default())
        .init_resource::<TestReactRecorder>();
    let world = app.world_mut();

    // add reactor
    world.syscall((), on_resource_mutation);
    assert_eq!(world.resource::<TestReactRecorder>().0, 0);

    // update resource (reaction)
    world.syscall(100, update_react_res);
    assert_eq!(world.resource::<TestReactRecorder>().0, 100);

    // update resource (reaction)
    world.syscall(1, update_react_res);
    assert_eq!(world.resource::<TestReactRecorder>().0, 1);
}

//-------------------------------------------------------------------------------------------------------------------

#[test]
fn test_resource_mutation_once()
{
    // prepare tracing
    /*
    let subscriber = tracing_subscriber::FmtSubscriber::builder()
        .with_max_level(tracing::Level::TRACE)
        .finish();
    tracing::subscriber::set_global_default(subscriber).expect("setting default subscriber failed");
    */

    // setup
    let mut app = App::new();
    app.add_plugins(ReactPlugin)
        .insert_react_resource(TestReactRes::default())
        .init_resource::<TestReactRecorder>();
    let world = app.world_mut();

    // add reactor
    world.syscall((), on_resource_mutation_once);
    assert_eq!(world.resource::<TestReactRecorder>().0, 0);

    // update resource (reaction)
    world.syscall(100, update_react_res);
    assert_eq!(world.resource::<TestReactRecorder>().0, 100);

    // update resource (no reaction)
    world.syscall(1, update_react_res);
    assert_eq!(world.resource::<TestReactRecorder>().0, 100);
}

//-------------------------------------------------------------------------------------------------------------------

#[test]
fn revoke_once_reactor()
{
    // setup
    let mut app = App::new();
    app.add_plugins(ReactPlugin)
        .insert_react_resource(TestReactRes::default())
        .init_resource::<TestReactRecorder>();
    let world = app.world_mut();

    // add reactor
    let revoke_token = world.syscall((), on_resource_mutation_once);
    assert_eq!(world.resource::<TestReactRecorder>().0, 0);

    // revoke reactor
    world.syscall(revoke_token, revoke_reactor);

    // mutate resource (no reaction)
    world.syscall(1, update_react_res);
    assert_eq!(world.resource::<TestReactRecorder>().0, 0);
}

//-------------------------------------------------------------------------------------------------------------------