mod router {
    use futures_lite::future;
    use mediasoup::data_structures::AppData;
    use mediasoup::router::RouterOptions;
    use mediasoup::rtp_parameters::{
        MimeTypeAudio, MimeTypeVideo, RtpCodecCapability, RtpCodecParametersParameters,
    };
    use mediasoup::worker::{Worker, WorkerSettings};
    use mediasoup::worker_manager::WorkerManager;
    use std::collections::{HashMap, HashSet};
    use std::env;
    use std::num::{NonZeroU32, NonZeroU8};
    use std::sync::atomic::{AtomicUsize, Ordering};
    use std::sync::Arc;

    fn media_codecs() -> Vec<RtpCodecCapability> {
        vec![
            RtpCodecCapability::Audio {
                mime_type: MimeTypeAudio::Opus,
                preferred_payload_type: None,
                clock_rate: NonZeroU32::new(48000).unwrap(),
                channels: NonZeroU8::new(2).unwrap(),
                parameters: RtpCodecParametersParameters::from([
                    ("useinbandfec", 1u32.into()),
                    ("foo", "bar".into()),
                ]),
                rtcp_feedback: vec![],
            },
            RtpCodecCapability::Video {
                mime_type: MimeTypeVideo::VP8,
                preferred_payload_type: None,
                clock_rate: NonZeroU32::new(90000).unwrap(),
                parameters: RtpCodecParametersParameters::new(),
                rtcp_feedback: vec![],
            },
            RtpCodecCapability::Video {
                mime_type: MimeTypeVideo::H264,
                preferred_payload_type: None,
                clock_rate: NonZeroU32::new(90000).unwrap(),
                parameters: RtpCodecParametersParameters::from([
                    ("level-asymmetry-allowed", 1u32.into()),
                    ("packetization-mode", 1u32.into()),
                    ("profile-level-id", "4d0032".into()),
                ]),
                rtcp_feedback: vec![], // Will be ignored.
            },
        ]
    }

    async fn init() -> Worker {
        {
            let mut builder = env_logger::builder();
            if env::var(env_logger::DEFAULT_FILTER_ENV).is_err() {
                builder.filter_level(log::LevelFilter::Off);
            }
            let _ = builder.is_test(true).try_init();
        }

        let worker_manager = WorkerManager::new(
            env::var("MEDIASOUP_WORKER_BIN")
                .map(|path| path.into())
                .unwrap_or_else(|_| "../worker/out/Release/mediasoup-worker".into()),
        );

        worker_manager
            .create_worker(WorkerSettings::default())
            .await
            .expect("Failed to create worker")
    }

    #[test]
    fn create_router_succeeds() {
        future::block_on(async move {
            let worker = init().await;

            let new_router_count = Arc::new(AtomicUsize::new(0));

            worker
                .on_new_router({
                    let new_router_count = Arc::clone(&new_router_count);

                    move |_router| {
                        new_router_count.fetch_add(1, Ordering::SeqCst);
                    }
                })
                .detach();

            #[derive(Debug, PartialEq)]
            struct CustomAppData {
                foo: u32,
            }

            let router = worker
                .create_router({
                    let mut router_options = RouterOptions::new(media_codecs());

                    router_options.app_data = AppData::new(CustomAppData { foo: 123 });

                    router_options
                })
                .await
                .expect("Failed to create router");

            assert_eq!(new_router_count.load(Ordering::SeqCst), 1);
            assert_eq!(router.closed(), false);
            assert_eq!(
                router.app_data().downcast_ref::<CustomAppData>(),
                Some(&CustomAppData { foo: 123 }),
            );

            let dump = router.dump().await.expect("Failed to dump router");

            assert_eq!(dump.id, router.id());
            assert_eq!(dump.transport_ids, HashSet::new());
            assert_eq!(dump.rtp_observer_ids, HashSet::new());
            assert_eq!(dump.map_producer_id_consumer_ids, HashMap::new());
            assert_eq!(dump.map_consumer_id_producer_id, HashMap::new());
            assert_eq!(dump.map_producer_id_observer_ids, HashMap::new());
            assert_eq!(dump.map_data_producer_id_data_consumer_ids, HashMap::new());
            assert_eq!(dump.map_data_consumer_id_data_producer_id, HashMap::new());
        });
    }

    #[test]
    fn close_event() {
        future::block_on(async move {
            let worker = init().await;

            let router = worker
                .create_router(RouterOptions::new(media_codecs()))
                .await
                .expect("Failed to create router");

            let (tx, rx) = async_oneshot::oneshot::<()>();
            let _handler = router.on_close(move || {
                let _ = tx.send(());
            });
            drop(router);

            rx.await.expect("Failed to receive close event");
        });
    }

    #[test]
    fn worker_close_event() {
        future::block_on(async move {
            let worker = init().await;

            let router = worker
                .create_router(RouterOptions::new(media_codecs()))
                .await
                .expect("Failed to create router");

            let (close_tx, close_rx) = async_oneshot::oneshot::<()>();
            let _handler = router.on_close(move || {
                let _ = close_tx.send(());
            });

            let (worker_close_tx, worker_close_rx) = async_oneshot::oneshot::<()>();
            let _handler = router.on_worker_close(move || {
                let _ = worker_close_tx.send(());
            });

            unsafe {
                libc::kill(worker.pid() as i32, libc::SIGINT);
            }

            worker_close_rx
                .await
                .expect("Failed to receive worker_close event");
            close_rx.await.expect("Failed to receive close event");

            assert_eq!(router.closed(), true);
        });
    }
}
