//! Plain (non-buffered) subscribe live diagnostic for F49 / F56.
//!
//! Mirror of `buffered_subscribe_live.rs` but invokes
//! `Session::subscribe` instead of `subscribe_buffered`. Used to
//! isolate whether F56's "no DataUpdate" symptom is buffered-specific
//! (only `subscribe_buffered` broken) or affects all subscribe paths.

#![allow(
    clippy::unwrap_used,
    clippy::expect_used,
    clippy::indexing_slicing,
    clippy::panic
)]

#[cfg(all(windows, feature = "live-windows-com"))]
mod live {
    use std::sync::Arc;
    use std::time::{Duration, Instant};

    use futures_util::StreamExt;
    use mxaccess::{MxValue, RecoveryPolicy, Session, SessionOptions};
    use mxaccess_galaxy::SqlTagResolver;
    use mxaccess_rpc::ntlm::NtlmClientContext;

    fn ntlm_from_test_env() -> NtlmClientContext {
        let user = std::env::var("MX_TEST_USER").expect("MX_TEST_USER");
        let password = std::env::var("MX_TEST_PASSWORD").expect("MX_TEST_PASSWORD");
        let domain = std::env::var("MX_TEST_DOMAIN").unwrap_or_default();
        let hostname = std::env::var("COMPUTERNAME").unwrap_or_default();
        NtlmClientContext::new(&user, &password, &domain, Some(&hostname))
    }

    #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
    #[ignore]
    async fn plain_subscribe_yields_updates() {
        if std::env::var_os("MX_LIVE").is_none() {
            eprintln!("MX_LIVE not set — skipping live test");
            return;
        }
        let tag = std::env::var("MX_TEST_TAG")
            .unwrap_or_else(|_| "TestChildObject.TestInt".to_string());

        let _ = tracing_subscriber::fmt()
            .with_env_filter(
                tracing_subscriber::EnvFilter::try_from_default_env()
                    .unwrap_or_else(|_| tracing_subscriber::EnvFilter::new("info")),
            )
            .with_test_writer()
            .try_init();

        let galaxy_db = std::env::var("MX_GALAXY_DB").expect("MX_GALAXY_DB");
        let resolver = Arc::new(
            SqlTagResolver::from_ado_string(&galaxy_db).expect("SqlTagResolver"),
        );

        let session = Session::connect_nmx_auto(
            ntlm_from_test_env,
            SessionOptions::default(),
            resolver,
            RecoveryPolicy::default(),
        )
        .await
        .expect("connect_nmx_auto");
        eprintln!("session connected");

        let mut sub = session.subscribe(&tag).await.expect("subscribe");
        eprintln!("plain subscribe correlation_id = {:02x?}", sub.correlation_id());

        // Background writer to force value changes.
        let deadline = Instant::now() + Duration::from_secs(20);
        let writer_session = session.clone();
        let writer_tag = tag.clone();
        let writer_stop = Arc::new(std::sync::atomic::AtomicBool::new(false));
        let writer_stop_clone = writer_stop.clone();
        let writer = tokio::spawn(async move {
            let mut value: i32 = 2_000;
            while !writer_stop_clone.load(std::sync::atomic::Ordering::Acquire) {
                if writer_session
                    .write(&writer_tag, MxValue::Int32(value))
                    .await
                    .is_err()
                {
                    break;
                }
                value = value.wrapping_add(1);
                tokio::time::sleep(Duration::from_millis(500)).await;
            }
            value
        });

        let mut received = 0;
        while received < 2 && Instant::now() < deadline {
            match tokio::time::timeout(Duration::from_secs(5), sub.next()).await {
                Ok(Some(Ok(dc))) => {
                    eprintln!("[{received}] {} = {:?} ts={:?}", dc.reference, dc.value, dc.timestamp);
                    received += 1;
                }
                Ok(Some(Err(e))) => {
                    writer_stop.store(true, std::sync::atomic::Ordering::Release);
                    let _ = writer.await;
                    panic!("subscription error: {e}");
                }
                Ok(None) => break,
                Err(_) => eprintln!("5s gap waiting for next update"),
            }
        }
        writer_stop.store(true, std::sync::atomic::Ordering::Release);
        let _ = writer.await;

        assert!(received >= 1, "no DataChange arrived for plain subscribe");
        eprintln!("received {received} updates via plain subscribe");

        session.unsubscribe(sub).await.expect("unsubscribe");
        session.shutdown_nmx().await.expect("shutdown");
    }
}

#[cfg(not(all(windows, feature = "live-windows-com")))]
mod live {
    #[test]
    #[ignore]
    fn plain_subscribe_yields_updates() {
        eprintln!("test skipped: requires Windows + live-windows-com feature");
    }
}