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#include <qtest.h>
#include <QLibraryInfo>

#include "debugutil_p.h"
#include "qqmldebugclient.h"
#include "../../../shared/util.h"

#define PORT 13773
#define STR_PORT "13773"

struct QQmlProfilerData
{
    qint64 time;
    int messageType;
    int detailType;

    //###
    QString detailData; //used by RangeData and RangeLocation
    int line;           //used by RangeLocation
    int column;         //used by RangeLocation
    int framerate;      //used by animation events
    int animationcount; //used by animation events

    QByteArray toByteArray() const;
};

class QQmlProfilerClient : public QQmlDebugClient
{
    Q_OBJECT

public:
    enum Message {
        Event,
        RangeStart,
        RangeData,
        RangeLocation,
        RangeEnd,
        Complete, // end of transmission

        MaximumMessage
    };

    enum EventType {
        FramePaint,
        Mouse,
        Key,
        AnimationFrame,
        EndTrace,
        StartTrace,

        MaximumEventType
    };

    enum RangeType {
        Painting,
        Compiling,
        Creating,
        Binding,            //running a binding
        HandlingSignal,     //running a signal handler

        MaximumRangeType
    };

    QQmlProfilerClient(QQmlDebugConnection *connection)
        : QQmlDebugClient(QLatin1String("CanvasFrameRate"), connection)
    {
    }

    QList<QQmlProfilerData> traceMessages;

    void setTraceState(bool enabled) {
        QByteArray message;
        QDataStream stream(&message, QIODevice::WriteOnly);
        stream << enabled;
        sendMessage(message);
    }

signals:
    void complete();

protected:
    void messageReceived(const QByteArray &message);
};

class tst_QQmlProfilerService : public QQmlDataTest
{
    Q_OBJECT

public:
    tst_QQmlProfilerService()
        : m_process(0)
        , m_connection(0)
        , m_client(0)
    {
    }

private:
    QQmlDebugProcess *m_process;
    QQmlDebugConnection *m_connection;
    QQmlProfilerClient *m_client;

    void connect(bool block, const QString &testFile);

private slots:
    void cleanup();

    void blockingConnectWithTraceEnabled();
    void blockingConnectWithTraceDisabled();
    void nonBlockingConnect();
    void profileOnExit();
};

void QQmlProfilerClient::messageReceived(const QByteArray &message)
{
    QByteArray msg = message;
    QDataStream stream(&msg, QIODevice::ReadOnly);


    QQmlProfilerData data;
    data.time = -2;
    data.messageType = -1;
    data.detailType = -1;
    data.line = -1;
    data.framerate = -1;
    data.animationcount = -1;

    stream >> data.time >> data.messageType;

    QVERIFY(data.time >= -1);

    switch (data.messageType) {
    case (QQmlProfilerClient::Event): {
        stream >> data.detailType;

        switch (data.detailType) {
        case QQmlProfilerClient::AnimationFrame: {
            stream >> data.framerate >> data.animationcount;
            QVERIFY(data.framerate != -1);
            QVERIFY(data.animationcount != -1);
            break;
        }
        case QQmlProfilerClient::FramePaint:
        case QQmlProfilerClient::Mouse:
        case QQmlProfilerClient::Key:
        case QQmlProfilerClient::StartTrace:
        case QQmlProfilerClient::EndTrace:
            break;
        default: {
            QString failMsg = QString("Unknown event type:") + data.detailType;
            QFAIL(qPrintable(failMsg));
            break;
        }
        }
        break;
    }
    case QQmlProfilerClient::Complete: {
        emit complete();
        return;
    }
    case QQmlProfilerClient::RangeStart: {
        stream >> data.detailType;
        QVERIFY(data.detailType >= 0 && data.detailType < QQmlProfilerClient::MaximumRangeType);
        break;
    }
    case QQmlProfilerClient::RangeEnd: {
        stream >> data.detailType;
        QVERIFY(data.detailType >= 0 && data.detailType < QQmlProfilerClient::MaximumRangeType);
        break;
    }
    case QQmlProfilerClient::RangeData: {
        stream >> data.detailType >> data.detailData;
        QVERIFY(data.detailType >= 0 && data.detailType < QQmlProfilerClient::MaximumRangeType);
        break;
    }
    case QQmlProfilerClient::RangeLocation: {
        stream >> data.detailType >> data.detailData >> data.line >> data.column;
        QVERIFY(data.detailType >= 0 && data.detailType < QQmlProfilerClient::MaximumRangeType);
        QVERIFY(data.line >= -2);
        break;
    }
    default:
        QString failMsg = QString("Unknown message type:") + data.messageType;
        QFAIL(qPrintable(failMsg));
        break;
    }
    QVERIFY(stream.atEnd());
    traceMessages.append(data);
}

void tst_QQmlProfilerService::connect(bool block, const QString &testFile)
{
    const QString executable = QLibraryInfo::location(QLibraryInfo::BinariesPath) + "/qmlscene";
    QStringList arguments;

    if (block)
        arguments << QString("-qmljsdebugger=port:" STR_PORT ",block");
    else
        arguments << QString("-qmljsdebugger=port:" STR_PORT);

    arguments << QQmlDataTest::instance()->testFile(testFile);

    m_process = new QQmlDebugProcess(executable, this);
    m_process->start(QStringList() << arguments);
    QVERIFY2(m_process->waitForSessionStart(), "Could not launch application, or did not get 'Waiting for connection'.");

    QQmlDebugConnection *m_connection = new QQmlDebugConnection();
    m_client = new QQmlProfilerClient(m_connection);

    m_connection->connectToHost(QLatin1String("127.0.0.1"), PORT);
}

void tst_QQmlProfilerService::cleanup()
{
    if (QTest::currentTestFailed()) {
        qDebug() << "Process State:" << m_process->state();
        qDebug() << "Application Output:" << m_process->output();
    }
    delete m_process;
    delete m_connection;
    delete m_client;
}

void tst_QQmlProfilerService::blockingConnectWithTraceEnabled()
{
    connect(true, "test.qml");
    QTRY_COMPARE(m_client->state(), QQmlDebugClient::Enabled);

    m_client->setTraceState(true);
    m_client->setTraceState(false);
    QVERIFY2(QQmlDebugTest::waitForSignal(m_client, SIGNAL(complete())), "No trace received in time.");

    QVERIFY(m_client->traceMessages.count());
    // must start with "StartTrace"
    QCOMPARE(m_client->traceMessages.first().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.first().detailType, (int)QQmlProfilerClient::StartTrace);

    // must end with "EndTrace"
    QCOMPARE(m_client->traceMessages.last().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.last().detailType, (int)QQmlProfilerClient::EndTrace);
}

void tst_QQmlProfilerService::blockingConnectWithTraceDisabled()
{
    connect(true, "test.qml");
    QTRY_COMPARE(m_client->state(), QQmlDebugClient::Enabled);

    m_client->setTraceState(false);
    m_client->setTraceState(true);
    m_client->setTraceState(false);
    QVERIFY2(QQmlDebugTest::waitForSignal(m_client, SIGNAL(complete())), "No trace received in time.");

    QVERIFY(m_client->traceMessages.count());

    // must start with "StartTrace"
    QCOMPARE(m_client->traceMessages.first().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.first().detailType, (int)QQmlProfilerClient::StartTrace);

    // must end with "EndTrace"
    QCOMPARE(m_client->traceMessages.last().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.last().detailType, (int)QQmlProfilerClient::EndTrace);
}

void tst_QQmlProfilerService::nonBlockingConnect()
{
    connect(false, "test.qml");
    QTRY_COMPARE(m_client->state(), QQmlDebugClient::Enabled);

    m_client->setTraceState(true);
    m_client->setTraceState(false);
    QVERIFY2(QQmlDebugTest::waitForSignal(m_client, SIGNAL(complete())), "No trace received in time.");

    // must start with "StartTrace"
    QCOMPARE(m_client->traceMessages.first().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.first().detailType, (int)QQmlProfilerClient::StartTrace);

    // must end with "EndTrace"
    QCOMPARE(m_client->traceMessages.last().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.last().detailType, (int)QQmlProfilerClient::EndTrace);
}

void tst_QQmlProfilerService::profileOnExit()
{
    connect(true, "exit.qml");
    QTRY_COMPARE(m_client->state(), QQmlDebugClient::Enabled);

    m_client->setTraceState(true);

    QVERIFY2(QQmlDebugTest::waitForSignal(m_client, SIGNAL(complete())), "No trace received in time.");

    // must start with "StartTrace"
    QCOMPARE(m_client->traceMessages.first().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.first().detailType, (int)QQmlProfilerClient::StartTrace);

    // must end with "EndTrace"
    QCOMPARE(m_client->traceMessages.last().messageType, (int)QQmlProfilerClient::Event);
    QCOMPARE(m_client->traceMessages.last().detailType, (int)QQmlProfilerClient::EndTrace);
}

QTEST_MAIN(tst_QQmlProfilerService)

#include "tst_qqmlprofilerservice.moc"