#[cfg(unix)]
mod unix {
    use futures::stream::StreamExt;
    use std::{fs, time::Duration};
    use tokio::{
        io::split,
        net::{UnixListener, UnixStream},
        time::sleep,
    };
    use tokio_util::codec::{length_delimited::LengthDelimitedCodec, FramedRead, FramedWrite};

    async fn uds_server() {
        let _ = fs::remove_file("/tmp/chmux_test");
        let listener = UnixListener::bind("/tmp/chmux_test").unwrap();

        let (socket, _) = listener.accept().await.unwrap();
        let (socket_rx, socket_tx) = split(socket);
        let framed_tx = FramedWrite::new(socket_tx, LengthDelimitedCodec::new());
        let framed_rx = FramedRead::new(socket_rx, LengthDelimitedCodec::new());
        let framed_rx = framed_rx.map(|data| data.map(|b| b.freeze()));

        let mux_cfg = chmux::Cfg::default();
        let (mux, _, mut server) = chmux::Multiplexer::new(&mux_cfg, framed_tx, framed_rx).await.unwrap();

        let mux_run = tokio::spawn(async move { mux.run().await.unwrap() });

        while let Some((mut tx, mut rx)) = server.accept().await.unwrap() {
            println!("Server accepting request");

            tx.send("Hi from server".into()).await.unwrap();
            println!("Server sent Hi message");

            println!("Server dropping sender");
            drop(tx);
            println!("Server dropped sender");

            while let Some(msg) = rx.recv().await.unwrap() {
                println!("Server received: {}", String::from_utf8_lossy(&Vec::from(msg)));
            }
        }

        println!("Waiting for server mux to terminate...");
        mux_run.await.unwrap();
    }

    async fn uds_client() {
        let socket = UnixStream::connect("/tmp/chmux_test").await.unwrap();

        let (socket_rx, socket_tx) = split(socket);
        let framed_tx = FramedWrite::new(socket_tx, LengthDelimitedCodec::new());
        let framed_rx = FramedRead::new(socket_rx, LengthDelimitedCodec::new());
        let framed_rx = framed_rx.map(|data| data.map(|b| b.freeze()));

        let mux_cfg = chmux::Cfg::default();
        let (mux, client, _) = chmux::Multiplexer::new(&mux_cfg, framed_tx, framed_rx).await.unwrap();
        let mux_run = tokio::spawn(async move { mux.run().await.unwrap() });

        {
            let client = client;

            println!("Client connecting...");
            let (mut tx, mut rx) = client.connect().await.unwrap();
            println!("Client connected");

            tx.send("Hi from client".into()).await.unwrap();
            println!("Client sent Hi message");

            println!("Client dropping sender");
            drop(tx);
            println!("Client dropped sender");

            while let Some(msg) = rx.recv().await.unwrap() {
                println!("Client received: {}", String::from_utf8_lossy(&Vec::from(msg)));
            }

            println!("Client closing connection...");
        }

        println!("Waiting for client mux to terminate...");
        mux_run.await.unwrap();
    }

    #[tokio::test]
    async fn uds_test() {
        env_logger::init();

        println!("Starting server task...");
        let server_task = tokio::spawn(uds_server());
        sleep(Duration::from_millis(100)).await;

        println!("String client thread...");
        let client_task = tokio::spawn(uds_client());

        println!("Waiting for server task...");
        server_task.await.unwrap();
        println!("Waiting for client thread...");
        client_task.await.unwrap();
    }
}