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#include <qvaluespace_p.h>

#include <qvaluespacesubscriber.h>

#include <qvaluespacepublisher.h>

#include <QtTest/QTest>

#include <QSet>

#include <QFile>

#include <QDebug>

QTM_USE_NAMESPACE

class FakeLayer : public QAbstractValueSpaceLayer

{

    Q_OBJECT

public:

    QString name() { return QString("Fake Layer"); }

    bool startup(Type) { return true; }

    void shutdown() { }

    QUuid id() { return QUuid(0x76c95ddc, 0xe38d, 0x42f8, 0xb2,

                              0x54, 0x21, 0xff, 0xa3, 0x63, 0x74, 0xf7); }

    unsigned int order() { return 0x20000000; }

    Handle item(Handle parent, const QString &subPath);

    void removeHandle(Handle handle);

    void setProperty(Handle, Properties) { }

    bool value(Handle handle, QVariant *data);

    bool value(Handle handle, const QString &subPath, QVariant *data);

    QSet<QString> children(Handle handle);

    QValueSpace::LayerOptions layerOptions() const;

    /* QValueSpaceSubscriber functions */

    bool supportsInterestNotification() const;

    bool notifyInterest(Handle handle, bool interested);

    /* QValueSpacePublisher functions */

    bool setValue(QValueSpacePublisher *creator, Handle handle,

                  const QString &subPath, const QVariant &value);

    bool removeValue(QValueSpacePublisher *creator, Handle handle, const QString &subPath);

    bool removeSubTree(QValueSpacePublisher *creator, Handle handle);

    void addWatch(QValueSpacePublisher *creator, Handle handle);

    void removeWatches(QValueSpacePublisher *creator, Handle parent);

    void sync() { }

    QStringList testErrors();

private:

    bool testPath(const QString &path);

    QMap<uint, QString> handles;

    QMap<uint, uint> interest;

    QStringList m_testErrors;

};

bool FakeLayer::testPath(const QString &path)

{

    if (path.isEmpty())

        m_testErrors << QLatin1String("path is empty");

    else if (path.at(0) != '/') {

        m_testErrors << QLatin1String("path does not start with /");

    } else {

        if (path.length() > 1 && path.endsWith('/')) {

            m_testErrors << QLatin1String("path ends with /");

        } else if (path.contains("//")) {

            m_testErrors << QLatin1String("path contains //");

        } else {

            return true;

        }

    }

    return false;

}

QAbstractValueSpaceLayer::Handle FakeLayer::item(Handle parent, const QString &subPath)

{

    if (parent == InvalidHandle) {

        if (testPath(subPath)) {

            if (!handles.contains(qHash(subPath)))

                handles.insert(qHash(subPath), subPath);

            return Handle(qHash(subPath));

        }

    } else {

        qDebug() << "relative" << subPath;

        m_testErrors << QLatin1String("Relative subPath, not an error not done yet");

    }

    return InvalidHandle;

}

void FakeLayer::removeHandle(Handle handle)

{

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    else

        handles.remove(handle);

}

bool FakeLayer::value(Handle handle, QVariant *data)

{

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    if (!data)

        m_testErrors << QLatin1String("data is null");

    *data = QVariant();

    return true;

}

bool FakeLayer::value(Handle handle, const QString &subPath, QVariant *data)

{

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    if (!data)

        m_testErrors << QLatin1String("data is null");

    if (testPath(subPath)) {

        *data = QVariant();

        return true;

    } else {

        return false;

    }

}

QSet<QString> FakeLayer::children(Handle handle)

{

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    return QSet<QString>();

}

QValueSpace::LayerOptions FakeLayer::layerOptions() const

{

    return QValueSpace::TransientLayer;

}

bool FakeLayer::supportsInterestNotification() const

{

    return true;

}

bool FakeLayer::notifyInterest(Handle handle, bool interested)

{

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    if (interested) {

        if (interest.contains(handle))

            m_testErrors << QLatin1String("path has been registered for interest");

        ++interest[handle];

    } else {

        if (!interest.contains(handle))

            m_testErrors << QLatin1String("path has not been registered for interest");

        --interest[handle];

        if (interest[handle] == 0)

            interest.remove(handle);

    }

    return true;

}

bool FakeLayer::setValue(QValueSpacePublisher *creator, Handle handle,

                         const QString &subPath, const QVariant &)

{

    if (!creator)

        m_testErrors << QLatin1String("creator is null");

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    testPath(subPath);

    return true;

}

bool FakeLayer::removeValue(QValueSpacePublisher *creator, Handle handle, const QString &subPath)

{

    if (!creator)

        m_testErrors << QLatin1String("creator is null");

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    testPath(subPath);

    return true;

}

bool FakeLayer::removeSubTree(QValueSpacePublisher *creator, Handle handle)

{

    if (!creator)

        m_testErrors << QLatin1String("creator is null");

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

    return true;

}

void FakeLayer::addWatch(QValueSpacePublisher *creator, Handle handle)

{

    if (!creator)

        m_testErrors << QLatin1String("creator is null");

    if (!handles.contains(handle))

        m_testErrors << QLatin1String("Unknown handle");

}

void FakeLayer::removeWatches(QValueSpacePublisher *creator, Handle parent)

{

    if (!creator)

        m_testErrors << QLatin1String("creator is null");

    if (!handles.contains(parent))

        m_testErrors << QLatin1String("Unknown handle");

}

QStringList FakeLayer::testErrors()

{

    QStringList result = m_testErrors;

    m_testErrors.clear();

    return result;

}

class tst_QValueSpace: public QObject

{

    Q_OBJECT

private slots:

    void initTestCase();

    void cleanupTestCase();

    void availableLayers();

    void layerInterface_data();

    void layerInterface();

private:

    FakeLayer *fakeLayer;

};

void tst_QValueSpace::initTestCase()

{

#ifdef Q_OS_UNIX

    QFile::remove("/tmp/qt-0/valuespace_shmlayer");

#endif

    qRegisterMetaType<QVariant>("QVariant");

    fakeLayer = new FakeLayer;

    QValueSpace::installLayer(fakeLayer);

    QValueSpace::initValueSpaceServer();

}

void tst_QValueSpace::cleanupTestCase()

{

    delete fakeLayer;

}

void tst_QValueSpace::availableLayers()

{

    QList<QUuid> layers = QValueSpace::availableLayers();

#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN) && !defined(Q_WS_MAEMO_5) && !defined(Q_WS_MAEMO_6)

    QVERIFY(layers.contains(QVALUESPACE_SHAREDMEMORY_LAYER));

#else

    QVERIFY(!layers.contains(QVALUESPACE_SHAREDMEMORY_LAYER));

#endif

#ifdef Q_OS_WIN

    QVERIFY(layers.contains(QVALUESPACE_VOLATILEREGISTRY_LAYER));

    QVERIFY(layers.contains(QVALUESPACE_NONVOLATILEREGISTRY_LAYER));

#else

    QVERIFY(!layers.contains(QVALUESPACE_VOLATILEREGISTRY_LAYER));

    QVERIFY(!layers.contains(QVALUESPACE_NONVOLATILEREGISTRY_LAYER));

#endif

#ifdef Q_WS_MAEMO_5

    QVERIFY(layers.contains(QVALUESPACE_GCONF_LAYER));

#endif

#ifdef Q_WS_MAEMO_6

    QVERIFY(layers.contains(QVALUESPACE_CONTEXTKIT_LAYER));

#else

    QVERIFY(!layers.contains(QVALUESPACE_CONTEXTKIT_LAYER));

#endif

    QVERIFY(layers.contains(fakeLayer->id()));

}

#define CHECK_ERRORS(x) do { \

    x; \

    QStringList testErrors = fakeLayer->testErrors(); \

    if (!testErrors.isEmpty()) { \

        qDebug() << testErrors; \

        QFAIL(#x); \

    } \

} while (false)

void tst_QValueSpace::layerInterface_data()

{

    QTest::addColumn<QString>("path");

    QTest::addColumn<QString>("attribute");

    QStringList paths;

    paths << QString() << QString("/") << QString("//")

          << QString("layerInterface") << QString("layerInterface/")

          << QString("/layerInterface") << QString("//layerInterface")

          << QString("/layerInterface/") << QString("/layerInterface//")

          << QString("/layerInterface/subpath") << QString("/layerInterface//subpath")

          << QString("/layerInterface/subpath/") << QString("/layerInterface/subpath//");

    QStringList attributes;

    attributes << QString()

               << QString("/")

               << QString("//")

               << QString("value")

               << QString("value/")

               << QString("value//")

               << QString("/value")

               << QString("//value")

               << QString("/value/")

               << QString("subpath/value")

               << QString("subpath//value");

    foreach (const QString &path, paths) {

        foreach (const QString &attribute, attributes) {

            QString id = QString("p:%1 a:%2").arg(path, attribute);

            QTest::newRow(id.toLocal8Bit().constData()) << path << attribute;

        }

    }

}

class SignalSink : public QObject

{

    Q_OBJECT

public slots:

    void slot() { }

};

void tst_QValueSpace::layerInterface()

{

    QFETCH(QString, path);

    QFETCH(QString, attribute);

    QValueSpaceSubscriber *subscriber;

    CHECK_ERRORS(subscriber = new QValueSpaceSubscriber(path));

    CHECK_ERRORS(subscriber->value(attribute));

    CHECK_ERRORS(subscriber->children());

    CHECK_ERRORS(delete subscriber);

    QValueSpacePublisher *publisher;

    CHECK_ERRORS(publisher = new QValueSpacePublisher(fakeLayer->id(), path));

    QVERIFY(publisher->isConnected());

    CHECK_ERRORS(publisher->setValue(attribute, 10));

    CHECK_ERRORS(publisher->resetValue(attribute));

    SignalSink sink;

    CHECK_ERRORS(connect(publisher, SIGNAL(interestChanged(QString,bool)),

                         &sink, SLOT(slot())));

    CHECK_ERRORS(delete publisher);

}

QTEST_MAIN(tst_QValueSpace)

#include "tst_qvaluespace.moc"