use scrappy_actor::{Actor, Context, Handler, System};
use scrappy_derive::{Message, MessageResponse};

#[derive(MessageResponse)]
struct Added(usize);

#[derive(Message)]
#[rtype(result = "Added")]
struct Sum(usize, usize);

#[derive(Default)]
struct Adder;

impl Actor for Adder {
    type Context = Context<Self>;
}

impl Handler<Sum> for Adder {
    type Result = <Sum as scrappy_actor::Message>::Result;
    fn handle(&mut self, msg: Sum, _: &mut Self::Context) -> Added {
        Added(msg.0 + msg.1)
    }
}

#[test]
fn test_message() {
    let mut sys = System::new("scrappy-test-runtime");
    let addr = Adder::start_default();
    let res = sys.block_on(addr.send(Sum(3, 5))).unwrap();
    assert_eq!(res.0, 8);
}