<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>Testing basic video exchange from offerer to receiver</title>
        <script src="../resources/testharness.js"></script>
        <script src="../resources/testharnessreport.js"></script>
    </head>
    <body>
        <video id="video" autoplay=""></video>
        <canvas id="canvas" width="640" height="480"></canvas>
        <script src ="routines.js"></script>
        <script>

promise_test((test) => {
    var pc = new RTCPeerConnection();
    pc.addTransceiver("video");

    return pc.createOffer().then((offer) => {
        assert_true(offer.sdp.indexOf("mid:video") !== -1);
        assert_true(offer.sdp.indexOf("a=recvonly") !== -1);

        pc.addTransceiver("audio");
        return pc.createOffer();
    }).then((offer) => {
        assert_true(offer.sdp.indexOf("mid:audio") !== -1);
    });
}, "Setting up calls with addTransceiver but with no track");

promise_test((test) => {
    if (window.testRunner)
        testRunner.setUserMediaPermission(true);

    return navigator.mediaDevices.getUserMedia({ video: true }).then((stream) => {
        var pc = new RTCPeerConnection();
        pc.addTransceiver("video");
        pc.getSenders()[0].replaceTrack(stream.getVideoTracks()[0]);

        return pc.createOffer().then((offer) => {
            assert_true(offer.sdp.indexOf("mid:video") !== -1);
            // Replacing the track is not done yet so we still set it as a recvonly.
            assert_true(offer.sdp.indexOf("a=recvonly") !== -1);
        });
    });
}, "Setting up calls with addTransceiver with a track");

function testImage()
{
    canvas.width = video.videoWidth;
    canvas.height = video.videoHeight;
    canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height);

    imageData = canvas.getContext('2d').getImageData(10, 325, 250, 1);
    data = imageData.data;

    var index = 20;
    assert_true(data[index] < 100);
    assert_true(data[index + 1] < 100);
    assert_true(data[index + 2] < 100);

    index = 80;
    assert_true(data[index] > 200);
    assert_true(data[index + 1] > 200);
    assert_true(data[index + 2] > 200);

    index += 80;
    assert_true(data[index] > 200);
    assert_true(data[index + 1] > 200);
    assert_true(data[index + 2] < 100);
}

promise_test((test) => {
    if (window.testRunner)
        testRunner.setUserMediaPermission(true);

    return navigator.mediaDevices.getUserMedia({ video: true}).then((stream) => {
        return new Promise((resolve, reject) => {
            createConnections((firstConnection) => {
                var track = stream.getVideoTracks()[0];
                firstConnection.addTransceiver("video");
                return firstConnection.getSenders()[0].replaceTrack(stream.getVideoTracks()[0]);
            }, (secondConnection) => {
                secondConnection.ontrack = (trackEvent) => {
                    resolve(trackEvent.streams[0]);
                };
            });
            setTimeout(() => reject("Test timed out"), 5000);
        });
    }).then((stream) => {
        video.srcObject = stream;
        return video.play();
    }).then(() => {
        testImage();
    });
}, "Basic video exchange set up with addTransceiver");

        </script>
    </body>
</html>