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#include <qtest.h>
#include <QtQml/qqmlengine.h>
#include <QtQml/qqmlcontext.h>
#include <QtQml/qqmlpropertymap.h>
#include <QtQml/qqmlcomponent.h>
#include <QtQuick/private/qquicktext_p.h>
#include <QSignalSpy>
#include <QDebug>

class tst_QQmlPropertyMap : public QObject
{
    Q_OBJECT
public:
    tst_QQmlPropertyMap() {}

private slots:
    void insert();
    void operatorInsert();
    void operatorValue();
    void clear();
    void changed();
    void count();
    void controlledWrite();

    void crashBug();
    void QTBUG_17868();
    void metaObjectAccessibility();
};

void tst_QQmlPropertyMap::insert()
{
    QQmlPropertyMap map;
    map.insert(QLatin1String("key1"),100);
    map.insert(QLatin1String("key2"),200);
    QVERIFY(map.keys().count() == 2);
    QVERIFY(map.contains(QLatin1String("key1")));

    QCOMPARE(map.value(QLatin1String("key1")), QVariant(100));
    QCOMPARE(map.value(QLatin1String("key2")), QVariant(200));

    map.insert(QLatin1String("key1"),"Hello World");
    QCOMPARE(map.value(QLatin1String("key1")), QVariant("Hello World"));

    //inserting property names same with existing method(signal, slot, method) names is not allowed
    //QQmlPropertyMap has an invokable keys() method
    QTest::ignoreMessage(QtWarningMsg, "Creating property with name \"keys\" is not permitted, conflicts with internal symbols. ");
    map.insert(QLatin1String("keys"), 1);
    QVERIFY(map.keys().count() == 2);
    QVERIFY(!map.contains(QLatin1String("keys")));
    QVERIFY(map.value(QLatin1String("keys")).isNull());

    //QQmlPropertyMap has a deleteLater() slot
    QTest::ignoreMessage(QtWarningMsg, "Creating property with name \"deleteLater\" is not permitted, conflicts with internal symbols. ");
    map.insert(QLatin1String("deleteLater"), 1);
    QVERIFY(map.keys().count() == 2);
    QVERIFY(!map.contains(QLatin1String("deleteLater")));
    QVERIFY(map.value(QLatin1String("deleteLater")).isNull());

    //QQmlPropertyMap has an valueChanged() signal
    QTest::ignoreMessage(QtWarningMsg, "Creating property with name \"valueChanged\" is not permitted, conflicts with internal symbols. ");
    map.insert(QLatin1String("valueChanged"), 1);
    QVERIFY(map.keys().count() == 2);
    QVERIFY(!map.contains(QLatin1String("valueChanged")));
    QVERIFY(map.value(QLatin1String("valueChanged")).isNull());

    //but 'valueChange' should be ok
    map.insert(QLatin1String("valueChange"), 1);
    QVERIFY(map.keys().count() == 3);
    QVERIFY(map.contains(QLatin1String("valueChange")));
    QCOMPARE(map.value(QLatin1String("valueChange")), QVariant(1));

    //'valueCHANGED' should be ok, too
    map.insert(QLatin1String("valueCHANGED"), 1);
    QVERIFY(map.keys().count() == 4);
    QVERIFY(map.contains(QLatin1String("valueCHANGED")));
    QCOMPARE(map.value(QLatin1String("valueCHANGED")), QVariant(1));
}

void tst_QQmlPropertyMap::operatorInsert()
{
    QQmlPropertyMap map;
    map[QLatin1String("key1")] = 100;
    map[QLatin1String("key2")] = 200;
    QVERIFY(map.keys().count() == 2);

    QCOMPARE(map.value(QLatin1String("key1")), QVariant(100));
    QCOMPARE(map.value(QLatin1String("key2")), QVariant(200));

    map[QLatin1String("key1")] = "Hello World";
    QCOMPARE(map.value(QLatin1String("key1")), QVariant("Hello World"));
}

void tst_QQmlPropertyMap::operatorValue()
{
    QQmlPropertyMap map;
    map.insert(QLatin1String("key1"),100);
    map.insert(QLatin1String("key2"),200);
    QVERIFY(map.count() == 2);
    QVERIFY(map.contains(QLatin1String("key1")));

    const QQmlPropertyMap &constMap = map;

    QCOMPARE(constMap.value(QLatin1String("key1")), QVariant(100));
    QCOMPARE(constMap.value(QLatin1String("key2")), QVariant(200));
    QCOMPARE(constMap[QLatin1String("key1")], constMap.value(QLatin1String("key1")));
    QCOMPARE(constMap[QLatin1String("key2")], constMap.value(QLatin1String("key2")));
}

void tst_QQmlPropertyMap::clear()
{
    QQmlPropertyMap map;
    map.insert(QLatin1String("key1"),100);
    QVERIFY(map.keys().count() == 1);

    QCOMPARE(map.value(QLatin1String("key1")), QVariant(100));

    map.clear(QLatin1String("key1"));
    QVERIFY(map.keys().count() == 1);
    QVERIFY(map.contains(QLatin1String("key1")));
    QCOMPARE(map.value(QLatin1String("key1")), QVariant());
}

void tst_QQmlPropertyMap::changed()
{
    QQmlPropertyMap map;
    QSignalSpy spy(&map, SIGNAL(valueChanged(const QString&, const QVariant&)));
    map.insert(QLatin1String("key1"),100);
    map.insert(QLatin1String("key2"),200);
    QCOMPARE(spy.count(), 0);

    map.clear(QLatin1String("key1"));
    QCOMPARE(spy.count(), 0);

    //make changes in QML
    QQmlEngine engine;
    QQmlContext *ctxt = engine.rootContext();
    ctxt->setContextProperty(QLatin1String("testdata"), &map);
    QQmlComponent component(&engine);
    component.setData("import QtQuick 2.0\nText { text: { testdata.key1 = 'Hello World'; 'X' } }",
            QUrl::fromLocalFile(""));
    QVERIFY(component.isReady());
    QQuickText *txt = qobject_cast<QQuickText*>(component.create());
    QVERIFY(txt);
    QCOMPARE(txt->text(), QString('X'));
    QCOMPARE(spy.count(), 1);
    QList<QVariant> arguments = spy.takeFirst();
    QCOMPARE(arguments.count(), 2);
    QCOMPARE(arguments.at(0).toString(),QLatin1String("key1"));
    QCOMPARE(arguments.at(1).value<QVariant>(),QVariant("Hello World"));
    QCOMPARE(map.value(QLatin1String("key1")), QVariant("Hello World"));
}

void tst_QQmlPropertyMap::count()
{
    QQmlPropertyMap map;
    QCOMPARE(map.isEmpty(), true);
    map.insert(QLatin1String("key1"),100);
    map.insert(QLatin1String("key2"),200);
    QCOMPARE(map.count(), 2);
    QCOMPARE(map.isEmpty(), false);

    map.insert(QLatin1String("key3"),"Hello World");
    QCOMPARE(map.count(), 3);

    //clearing doesn't remove the key
    map.clear(QLatin1String("key3"));
    QCOMPARE(map.count(), 3);
    QCOMPARE(map.size(), map.count());
}

class MyPropertyMap : public QQmlPropertyMap
{
    Q_OBJECT
protected:
    virtual QVariant updateValue(const QString &key, const QVariant &src)
    {
        if (key == QLatin1String("key1")) {
            // 'key1' must be all uppercase
            const QString original(src.toString());
            return QVariant(original.toUpper());
        }

        return src;
    }
};

void tst_QQmlPropertyMap::controlledWrite()
{
    MyPropertyMap map;
    QCOMPARE(map.isEmpty(), true);

    //make changes in QML
    QQmlEngine engine;
    QQmlContext *ctxt = engine.rootContext();
    ctxt->setContextProperty(QLatin1String("testdata"), &map);

    const char *qmlSource =
        "import QtQuick 2.0\n"
        "Item { Component.onCompleted: { testdata.key1 = 'Hello World'; testdata.key2 = 'Goodbye' } }";

    QQmlComponent component(&engine);
    component.setData(qmlSource, QUrl::fromLocalFile(""));
    QVERIFY(component.isReady());

    QObject *obj = component.create();
    QVERIFY(obj);
    delete obj;

    QCOMPARE(map.value(QLatin1String("key1")), QVariant("HELLO WORLD"));
    QCOMPARE(map.value(QLatin1String("key2")), QVariant("Goodbye"));
}

void tst_QQmlPropertyMap::crashBug()
{
    QQmlPropertyMap map;

    QQmlEngine engine;
    QQmlContext context(&engine);
    context.setContextProperty("map", &map);

    QQmlComponent c(&engine);
    c.setData("import QtQuick 2.0\nBinding { target: map; property: \"myProp\"; value: 10 + 23 }",QUrl());
    QObject *obj = c.create(&context);
    delete obj;
}

void tst_QQmlPropertyMap::QTBUG_17868()
{
    QQmlPropertyMap map;

    QQmlEngine engine;
    QQmlContext context(&engine);
    context.setContextProperty("map", &map);
    map.insert("key", 1);
    QQmlComponent c(&engine);
    c.setData("import QtQuick 2.0\nItem {property bool error:false; Component.onCompleted: {try{ map.keys(); }catch(e) {error=true;}}}",QUrl());
    QObject *obj = c.create(&context);
    QVERIFY(obj);
    QVERIFY(!obj->property("error").toBool());
    delete obj;

}

class MyEnhancedPropertyMap : public QQmlPropertyMap
{
    Q_OBJECT
public:
    MyEnhancedPropertyMap() : QQmlPropertyMap(this, 0) {}

signals:
    void testSignal();

public slots:
    void testSlot() {}
};

namespace
{
    QStringList messages;
    void msgHandler(QtMsgType, const QMessageLogContext &, const QString &msg)
    {
        messages << msg;
    }
}

void tst_QQmlPropertyMap::metaObjectAccessibility()
{
    messages.clear();
    QtMessageHandler old = qInstallMessageHandler(msgHandler);

    QQmlEngine engine;

    MyEnhancedPropertyMap map;

    // Verify that signals and slots of QQmlPropertyMap-derived classes are accessible
    QObject::connect(&map, SIGNAL(testSignal()), &engine, SIGNAL(quit()));
    QObject::connect(&engine, SIGNAL(quit()), &map, SLOT(testSlot()));

    QCOMPARE(map.metaObject()->className(), "MyEnhancedPropertyMap");

    qInstallMessageHandler(old);

    QCOMPARE(messages.count(), 0);
}

QTEST_MAIN(tst_QQmlPropertyMap)

#include "tst_qqmlpropertymap.moc"
