// -----------------------------------------------
// Minimal compilable example
//
// Qt5 result: all methods called
// Qt6 result: only testMethod4 is called
// -----------------------------------------------

#include <QCoreApplication>
#include <QVariant>

#include "main.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
    auto q1 = QMetaType::fromName("QList<quint8>");
    auto q2 = QMetaType::fromName("QList<uchar>");
#else
    auto q1 = QMetaType(QMetaType::type("QList<quint8>"));
    auto q2 = QMetaType(QMetaType::type("QList<uchar>"));
#endif
    qDebug() << "QList<quint8>" << q1.id();
    qDebug() << "QList<uchar>" << q2.id();

    // Qt5: need to register it
    // Qt6: registering as a type has no effect?
    qRegisterMetaType<QList<quint8>>("QList<quint8>");


    // QVariant converts QList<quint8> to QList<uchar>
    auto l1 = (int)11;
    auto l2 = QList<quint8>() << 11;
    auto l3 = QList<uchar>() << 11;

    auto v1 = QVariant::fromValue(l1);
    auto v2 = QVariant::fromValue(l2);
    auto v3 = QVariant::fromValue(l3);

    qDebug() << "v1 type:" << v1.typeName();
    qDebug() << "v2 type:" << v2.typeName();
    qDebug() << "v3 type:" << v3.typeName();


    // Issue: Invoke tries to find QList<uchar> and does not accept QList<quint8>
    // Not all methods are called
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
    qRegisterMetaType<InvokeTarget>("InvokeTarget");
    auto mt = QMetaType::fromName("InvokeTarget");
    auto obj = qobject_cast<InvokeTarget*>((QObject*)mt.create());
#else
    qRegisterMetaType<InvokeTarget*>("InvokeTarget");
    auto mt = QMetaType(QMetaType::type("InvokeTarget"));
    const QMetaObject* metaObject = QMetaType::metaObjectForType(mt.id());
    auto obj = metaObject->newInstance();
#endif
    if (obj == nullptr)
        return -1;

    // reconstruct variables to argument list
    auto genArg1 = QGenericArgument(QMetaType::typeName(v1.userType()), const_cast<void*>(v1.constData()));
    auto genArg2 = QGenericArgument(QMetaType::typeName(v2.userType()), const_cast<void*>(v2.constData()));

    QMetaObject::invokeMethod(obj, "testMethod1", genArg1, genArg2);
    QMetaObject::invokeMethod(obj, "testMethod2", genArg1, genArg2);
    QMetaObject::invokeMethod(obj, "testMethod3", genArg1, genArg2);
    QMetaObject::invokeMethod(obj, "testMethod4", genArg1, genArg2);

    return 0;
}