//! End-to-end server coverage for upstream microphone media streams.
//!
//! Scope: run a local gRPC server and push synthetic client microphone packets
//! through the public `StreamMicrophone` RPC.
//! Targets: `server/src/main.rs`, `server/src/audio.rs`.
//! Why: upstream audio should surface sink failures, supersession, and normal
//! packet delivery without requiring ALSA hardware in CI.

#[cfg(coverage)]
#[allow(warnings)]
mod server_upstream_media_audio {
    include!(env!("LESAVKA_SERVER_MAIN_SRC"));
    include!("../support/server_upstream_media_harness.rs");

    use serial_test::serial;
    use temp_env::with_var;

    #[test]
    #[serial]
    fn stream_microphone_accepts_upstream_audio_packets() {
        let rt = tokio::runtime::Runtime::new().expect("runtime");
        with_var("LESAVKA_CAPTURE_POWER_UNIT", Some("none"), || {
            with_var("LESAVKA_UPSTREAM_PLAYOUT_DELAY_MS", Some("0"), || {
                rt.block_on(async {
                    let (_dir, handler) = build_handler_for_tests();
                    let (server, mut cli) = serve_handler(handler).await;
                    let (tx, rx) = tokio::sync::mpsc::channel(4);

                    let outbound = tokio_stream::wrappers::ReceiverStream::new(rx);
                    let mut response = cli
                        .stream_microphone(tonic::Request::new(outbound))
                        .await
                        .expect("microphone stream should open");

                    tokio::time::sleep(std::time::Duration::from_millis(35)).await;
                    tx.send(AudioPacket {
                        id: 0,
                        pts: 12_345,
                        data: vec![1, 2, 3, 4, 5, 6],
                        ..AudioPacket::default()
                    })
                    .await
                    .expect("send synthetic upstream audio");
                    drop(tx);

                    let ack = tokio::time::timeout(
                        std::time::Duration::from_secs(1),
                        response.get_mut().message(),
                    )
                    .await
                    .expect("microphone ack timeout")
                    .expect("microphone ack grpc")
                    .expect("microphone ack item");
                    assert_eq!(ack, Empty {});

                    server.abort();
                });
            });
        });
    }

    #[test]
    #[serial]
    fn stream_microphone_supersedes_the_previous_owner_cleanly() {
        let rt = tokio::runtime::Runtime::new().expect("runtime");
        with_var("LESAVKA_CAPTURE_POWER_UNIT", Some("none"), || {
            with_var("LESAVKA_UPSTREAM_PLAYOUT_DELAY_MS", Some("0"), || {
                rt.block_on(async {
                    let (_dir, handler) = build_handler_for_tests();
                    let (server, mut cli) = serve_handler(handler).await;
                    let (first_tx, first_rx) = tokio::sync::mpsc::channel(1);
                    let (_second_tx, second_rx) = tokio::sync::mpsc::channel(1);

                    let mut first = cli
                        .stream_microphone(tonic::Request::new(
                            tokio_stream::wrappers::ReceiverStream::new(first_rx),
                        ))
                        .await
                        .expect("first microphone stream")
                        .into_inner();

                    let _second = cli
                        .stream_microphone(tonic::Request::new(
                            tokio_stream::wrappers::ReceiverStream::new(second_rx),
                        ))
                        .await
                        .expect("second microphone stream supersedes first");

                    drop(first_tx);
                    let ack =
                        tokio::time::timeout(std::time::Duration::from_secs(1), first.message())
                            .await
                            .expect("superseded microphone ack timeout")
                            .expect("superseded microphone ack grpc")
                            .expect("superseded microphone ack item");
                    assert_eq!(ack, Empty {});

                    server.abort();
                });
            });
        });
    }

    #[test]
    #[serial]
    fn stream_microphone_surfaces_internal_error_when_sink_open_fails() {
        let rt = tokio::runtime::Runtime::new().expect("runtime");
        with_var("LESAVKA_CAPTURE_POWER_UNIT", Some("none"), || {
            with_var("LESAVKA_TEST_FORCE_PIPELINE_START_ERROR", Some("1"), || {
                rt.block_on(async {
                    let (_dir, handler) = build_handler_for_tests();
                    let (server, mut cli) = serve_handler(handler).await;
                    let (_tx, rx) = tokio::sync::mpsc::channel(1);

                    let err = cli
                        .stream_microphone(tonic::Request::new(
                            tokio_stream::wrappers::ReceiverStream::new(rx),
                        ))
                        .await
                        .expect_err("missing sink should fail the stream");
                    assert_eq!(err.code(), tonic::Code::Internal);

                    server.abort();
                });
            });
        });
    }
}