/****************************************************************************
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** This file is part of the test suite of the Qt Toolkit.
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** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/
#include <qtest.h>
#include <QtDeclarative/qdeclarativecomponent.h>
#include <QtDeclarative/qdeclarativeengine.h>
#include <QtDeclarative/qdeclarativeitem.h>
#include <QtDeclarative/qdeclarativecontext.h>
#include <QtCore/QDir>
#include <QtScript/QScriptEngineAgent>
#include <private/qdeclarativeengine_p.h>
#include "../shared/util.h"

class MyTestObject : public QObject {
    Q_OBJECT
    Q_PROPERTY(QString someProperty READ someProperty WRITE setSomeProperty NOTIFY somePropertyChanged)

public:
    QString someProperty() { return _someProperty; }
    void setSomeProperty(const QString &p) { _someProperty = p; }
    QString _someProperty;

    void emitSignal(const QString &value) { emit signaled(value); }

signals:
    void signaled(const QString &value);
    void somePropertyChanged();
};


class BtAgent : public QScriptEngineAgent {
public:
    BtAgent(QScriptEngine *engine) : QScriptEngineAgent(engine)
    { count = 0; engine->setAgent(this); }

    QStringList bt;
    int count;
    int breakpoint;
    void positionChange(qint64 , int lineNumber, int )
    {
        if(lineNumber == breakpoint) {
            count++;
            bt = engine()->currentContext()->backtrace();
        }
    }
};



/*
This test covers evaluation of ECMAScript expressions and bindings from within
QML.  This does not include static QML language issues.

Static QML language issues are covered in qmllanguage
*/
inline QUrl TEST_FILE(const QString &filename)
{
    return QUrl::fromLocalFile(TESTDATA(filename));
}

inline QUrl TEST_FILE(const char *filename)
{
    return TEST_FILE(QLatin1String(filename));
}

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

private slots:
    void initTestCase();
    void backtrace1();
};

void tst_qdeclarativescriptdebugging::initTestCase()
{
        qmlRegisterType<MyTestObject>("Qt.test", 1,0, "MyTestObject");
}

void tst_qdeclarativescriptdebugging::backtrace1()
{
    {
    QDeclarativeEngine engine;
    QUrl file = TEST_FILE("backtrace1.qml");
    QDeclarativeComponent component(&engine, file);
    QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(component.create());
    QVERIFY(item);
    MyTestObject *obj = item->findChild<MyTestObject *>();
    QVERIFY(obj);
    QCOMPARE(obj->someProperty(), QString("Hello Default"));

    QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(&engine);
    BtAgent agent(&ep->scriptEngine);
    agent.breakpoint = 16;

    obj->emitSignal("blah");
    QCOMPARE(obj->someProperty(), QString("Hello blahb"));
    QCOMPARE(agent.count, 1);

    QStringList expected;
    expected << "append(a = 'Hello', b = 'blahb') at @PREFIX@/backtrace1.qml:16"
             << "$someProperty() at @PREFIX@/backtrace1.qml:21"
             << "function2InScript(a = 'blahb') at @PREFIX@/backtrace1.js:4"
             << "functionInScript(a = 'blah', b = 'b') at @PREFIX@/backtrace1.js:10"
             << "onSignaled() at @PREFIX@/backtrace1.qml:24"
             << "<global>() at -1";
    expected.replaceInStrings("@PREFIX@", file.toString().section('/', 0, -2));
    QCOMPARE(agent.bt, expected);
    }
}


QTEST_MAIN(tst_qdeclarativescriptdebugging)

#include "tst_qdeclarativescriptdebugging.moc"