<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <script src="/resources/testharness.js"></script>
        <script src="/resources/testharnessreport.js"></script>
    </head>
    <body>
        <video id="video1" autoplay></video>
        <script src ="routines.js"></script>
        <script>
async function waitForMessage(worker, data)
{
    while (true) {
        const received = await new Promise(resolve => worker.onmessage = (event) => resolve(event.data));
        if (data === received)
            return;
    }
}

async function gatherMetadata(test, audio)
{
    worker = new Worker('script-metadata-transform-worker.js');
    const data = await new Promise(resolve => worker.onmessage = (event) => resolve(event.data));
    assert_equals(data, "registered");

    const localStream = await navigator.mediaDevices.getUserMedia({audio: audio, video: !audio});

    let sender, receiver;
    const senderTransform = new RTCRtpScriptTransform(worker, {name:'sender'});
    const receiverTransform = new RTCRtpScriptTransform(worker, {name:'receiver'});

    await new Promise((resolve, reject) => {
        createConnections(test, (firstConnection) => {
            pc1 = firstConnection;
            sender = firstConnection.addTrack(localStream.getTracks()[0], localStream);
            sender.transform = senderTransform;
        }, (secondConnection) => {
            pc2 = secondConnection;
            secondConnection.ontrack = (trackEvent) => {
                receiver = trackEvent.receiver;
                receiver.transform = receiverTransform;
                resolve(trackEvent.streams[0]);
            };
        });
        test.step_timeout(() => reject("Test timed out"), 5000);
    });

    return new Promise((resolve, reject) => {
        let senderMetadata, senderTimestamp;
        worker.onmessage = (event) => {
            if (event.data.name === 'sender') {
                senderMetadata = event.data.metadata;
                senderTimestamp = event.data.timestamp;
            } else if (event.data.name === 'receiver')
               resolve([senderMetadata, senderTimestamp, event.data.metadata, event.data.timestamp]);
        };
        test.step_timeout(() => reject("Metadata test timed out"), 5000);
    });
}

promise_test(async (test) => {
    const [senderMetadata, senderTimestamp, receiverMetadata, receiverTimestamp] = await gatherMetadata(test, true);

    assert_equals(senderTimestamp, receiverTimestamp, "timestamp");
    assert_true(!!senderMetadata.synchronizationSource, "ssrc");
    assert_equals(senderMetadata.synchronizationSource, receiverMetadata.synchronizationSource, "ssrc");
    assert_array_equals(senderMetadata.contributingSources, receiverMetadata.contributingSources, "csrc");
}, "audio exchange with transform");

promise_test(async (test) => {
    const [senderMetadata, senderTimestamp, receiverMetadata, receiverTimestamp] = await gatherMetadata(test, true);

    assert_equals(senderTimestamp, receiverTimestamp, "timestamp");
    assert_true(!!senderMetadata.synchronizationSource, "ssrc");
    assert_equals(senderMetadata.synchronizationSource, receiverMetadata.synchronizationSource, "ssrc");
    assert_equals(senderMetadata.height, receiverMetadata.height, "height");
    assert_equals(senderMetadata.width, receiverMetadata.width, "width");
    assert_equals(senderMetadata.spatialIndex, receiverMetadata.spatialIndex, "spatialIndex");
    assert_equals(senderMetadata.temporalIndex, receiverMetadata.temporalIndex, "temporalIndex");
}, "video exchange with transform");
        </script>
    </body>
</html>