use dubbo::codegen::{Request, Response};
use dubbo::Dubbo;
use dubbo_config::RootConfig;
use crate::sample::greeter_server::{Greeter, register_server};
use crate::sample::{GreeterReply, GreeterRequest};

mod sample;

#[tokio::main]
async fn main() {
    register_server(GreeterServerImpl {
        name: "greeter".to_string(),
    });

    Dubbo::new()
        .with_config({
            let r = RootConfig::new();
            match r.load() {
                Ok(config) => config,
                Err(_err) => panic!("err: {:?}", _err), // response was droped
            }
        })
        .start()
        .await;
}

#[allow(dead_code)]
#[derive(Default, Clone)]
struct GreeterServerImpl {
    name: String,
}

#[async_trait::async_trait]
impl Greeter for GreeterServerImpl {
    async fn greet(
        &self,
        request: Request<GreeterRequest>,
    ) -> Result<Response<GreeterReply>, dubbo::status::Status> {
        println!("GreeterServer::greet {:?}", request.metadata);

        Ok(Response::new(GreeterReply {
            message: "hello, dubbo-rust".to_string(),
        }))
    }
}