use xactor::*;

#[message(result = "String")]
struct ToUppercase(String);

struct MyActor;

impl Actor for MyActor {}

#[async_trait::async_trait]
impl Handler<ToUppercase> for MyActor {
    async fn handle(&mut self, _ctx: &Context<Self>, msg: ToUppercase) -> String {
        msg.0.to_uppercase()
    }
}

#[async_std::main]
async fn main() -> Result<()> {
    // Start actor and get its address
    let mut addr = MyActor.start().await;

    // Send message `ToUppercase` to actor via addr
    let res = addr.call(ToUppercase("lowercase".to_string())).await?;
    assert_eq!(res, "LOWERCASE");
    Ok(())
}