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 /* This file is part of the KDE frameworks
     Copyright (c) 2015 David Faure <faure@kde.org>
 
     This library is free software; you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as published by
     the Free Software Foundation; either version 2 of the License or ( at
     your option ) version 3 or, at the discretion of KDE e.V. ( which shall
     act as a proxy as in section 14 of the GPLv3 ), any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Lesser General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #include <QDebug>
 #include <kross/core/metafunction.h>
 #include <QMetaMethod>
 #include <QTest>
 
 class MyFunction : public Kross::MetaFunction
 {
 public:
     MyFunction(QObject* sender, const QByteArray& signal)
         : Kross::MetaFunction(sender, signal) {}
 
     int qt_metacall(QMetaObject::Call _c, int _id, void **_a) override {
         _id = QObject::qt_metacall(_c, _id, _a);
         if (_id >= 0 && _c == QMetaObject::InvokeMetaMethod) {
             switch (_id) {
                 case 0:
                 {
                     // convert the arguments
                     QMetaMethod method = metaObject()->method( metaObject()->indexOfMethod(m_signature.constData()) );
                     m_paramTypes = method.parameterTypes();
                     for (int idx = 0; idx < m_paramTypes.size(); ++idx) {
                         const int tp = QVariant::nameToType( m_paramTypes.at(idx).constData() );
                         QVariant v(tp, _a[idx+1]);
                         m_paramValues.append(v);
                     }
                 }
             }
             _id -= 1;
         }
         return _id;
     }
     QList<QByteArray> paramTypes() const { return m_paramTypes; }
     QList<QVariant> paramValues() const { return m_paramValues; }
 private:
     QList<QByteArray> m_paramTypes;
     QList<QVariant> m_paramValues;
 };
 
 class WrappedObject : public QObject
 {
     Q_OBJECT
 public:
     void doEmit() { emit valueChanged(42); }
 Q_SIGNALS:
     void valueChanged(int);
 };
 
 class MetaFunctionTest : public QObject
 {
     Q_OBJECT
 private Q_SLOTS:
     void testMetaFunction()
     {
         WrappedObject obj;
         QList<MyFunction *> funcs;
         // mostly from kross-interpreters/python/pythonscript.cpp
         const QMetaObject* metaobject = obj.metaObject();
         const int count = metaobject->methodCount();
         for(int i = 0; i < count; ++i) {
             QMetaMethod metamethod = metaobject->method(i);
             if( metamethod.methodType() == QMetaMethod::Signal ) {
                 const QByteArray signature = metamethod.methodSignature();
                 // skip signals from QObject
                 if (signature.startsWith("destroyed") || signature.startsWith("objectNameChanged"))
                     continue;
                 MyFunction *func = new MyFunction(&obj, signature);
                 funcs.append(func);
                 const QByteArray name = signature.left(signature.indexOf('('));
                 QByteArray sendersignal = signature;
                 sendersignal.prepend(QSIGNAL_CODE + '0');
                 QByteArray receiverslot = signature;
                 receiverslot.prepend(QSLOT_CODE + '0');
 
                 QObject::connect(&obj, sendersignal.constData(), func, receiverslot.constData());
             }
         }
 
         QCOMPARE(funcs.count(), 1); // valueChanged
 
         MyFunction* valueChangedFunc = funcs.at(0);
         const QMetaObject *valueChangedMetaObj = valueChangedFunc->metaObject();
         bool found = false;
         QByteArray foundSig;
         for (int i = 0; i < valueChangedMetaObj->methodCount(); ++i) {
             QMetaMethod method = valueChangedMetaObj->method(i);
             if (method.name() == "valueChanged") {
                 found = true;
                 foundSig = method.methodSignature();
             }
         }
         QVERIFY2(found, "no valueChanged method/slot found in dynamic meta object!");
         QCOMPARE(foundSig.constData(), "valueChanged(int)");
 
         obj.doEmit();
         QCOMPARE(funcs.at(0)->paramTypes(), QList<QByteArray>() << "int");
         QCOMPARE(funcs.at(0)->paramValues().at(0).toInt(), 42);
         qDeleteAll(funcs);
     }
 };
 
 QTEST_MAIN(MetaFunctionTest)
 
 #include "metafunctiontest.moc"