//! This example demonstrates how to make multiple outgoing connections on a single UDP socket.
//!
//! Checkout the `README.md` for guidance.

use std::{error::Error};

#[macro_use]
extern crate log;
extern crate simplelog;
// use simple_logger::SimpleLogger;
use time::macros;
use simplelog::*;
use std::str::FromStr;
use scionnet::SocketAddr;
use quinn::Endpoint;

// use pan_bindings::{Endpoint as PanEndpoint, resolve_udp_addr};

mod common;
use common::{make_scion_client_endpoint2, make_scion_server_endpoint2};

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {

  // SimpleLogger::init(LevelFilter::Trace, ConfigBuilder::new().set_time_format_custom(format_description!("[second].[subsecond]")).set_time_level(LevelFilter::Debug).build() );
  env_logger::init();
  

    //let local = <PanEndpoint as FromStr>::from_str("localhost").unwrap();
    //let local = <PanEndpoint as FromStr>::from_str("19-ffaa:1:1094,127.0.0.1:53").unwrap();
    // let local  = resolve_udp_addr("localhost")?;
    

    let mut addr1:SocketAddr = "19-ffaa:1:1067,127.0.0.1:0".parse()?;//  local.into();
    addr1.set_port(5000);
    let mut addr2:SocketAddr = addr1.clone();
    addr2.set_port(5001);
    let mut addr3:SocketAddr = addr1.clone();
    addr3.set_port(5002);
    let server1_cert = run_scion_server(addr1)?;
 //   let server2_cert = run_scion_server(addr2)?;
 //   let server3_cert = run_scion_server(addr3)?;


    println!("server01: {}", addr1.to_string() );
  //  println!("server02: {}", addr2.to_string() );
   // println!("server03: {}", addr3.to_string() );

    let client = make_scion_client_endpoint2(
        "127.0.0.1:0".parse().unwrap(),
        &[&server1_cert]
        // &[&server1_cert, &server2_cert, &server3_cert],
    )?;

    // connect to multiple endpoints using the same socket/endpoint
    tokio::join!(
        run_scion_client(&client, addr1),
    //    run_scion_client(&client, addr2),
     //   run_scion_client(&client, addr3),
    );

    // Make sure the server has a chance to clean up
    client.wait_idle().await;
    debug!("DONE:)");
    Ok(())
}

/// Runs a QUIC server bound to given address and returns server certificate.
fn run_scion_server(addr: SocketAddr) -> Result<Vec<u8>, Box<dyn Error>> {
    let (endpoint, server_cert) = make_scion_server_endpoint2(addr)?;
    // accept a single connection
    tokio::spawn(async move {
        let connection = endpoint.accept().await.unwrap().await.unwrap();
        println!(
            "[server] incoming connection: addr={}",
            connection.remote_address()
        );
    });

    Ok(server_cert)
}

/// Attempt QUIC connection with the given server address.
async fn run_scion_client(endpoint: &Endpoint, server_addr: SocketAddr) {
    let connect = endpoint.connect(server_addr, "localhost").unwrap();
    let connection = connect.await.unwrap();
    println!("[client] connected: addr={}", connection.remote_address());
}