/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** 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 and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtTest/QtTest>

#include <QtQml/private/qanimationgroupjob_p.h>
#include <QtQml/private/qsequentialanimationgroupjob_p.h>
#include <QtQml/private/qparallelanimationgroupjob_p.h>

Q_DECLARE_METATYPE(QAbstractAnimationJob::State)

class tst_QAnimationGroupJob : public QObject
{
    Q_OBJECT
public Q_SLOTS:
    void initTestCase();

private slots:
    void construction();
    void emptyGroup();
    void setCurrentTime();
    void addChildTwice();
};

void tst_QAnimationGroupJob::initTestCase()
{
    qRegisterMetaType<QAbstractAnimationJob::State>("QAbstractAnimationJob::State");
}

void tst_QAnimationGroupJob::construction()
{
    QSequentialAnimationGroupJob animationgroup;
}

class TestableGenericAnimation : public QAbstractAnimationJob
{
public:
    TestableGenericAnimation(int duration = 250) : m_duration(duration) {}
    int duration() const { return m_duration; }

private:
    int m_duration;
};

class UncontrolledAnimation : public QObject, public QAbstractAnimationJob
{
    Q_OBJECT
public:
    UncontrolledAnimation()
        : id(0)
    {
    }

    int duration() const { return -1; /* not time driven */ }

protected:
    void timerEvent(QTimerEvent *event)
    {
        if (event->timerId() == id)
            stop();
    }

    void updateRunning(bool running)
    {
        if (running) {
            id = startTimer(500);
        } else {
            killTimer(id);
            id = 0;
        }
    }

private:
    int id;
};

class StateChangeListener: public QAnimationJobChangeListener
{
public:
    virtual void animationStateChanged(QAbstractAnimationJob *, QAbstractAnimationJob::State newState, QAbstractAnimationJob::State)
    {
        states << newState;
    }

    int count()
    {
        return states.count();
    }

    QList<QAbstractAnimationJob::State> states;
};

void tst_QAnimationGroupJob::emptyGroup()
{
    QSequentialAnimationGroupJob group;
    StateChangeListener groupStateChangedSpy;
    group.addAnimationChangeListener(&groupStateChangedSpy, QAbstractAnimationJob::StateChange);

    QCOMPARE(group.state(), QAnimationGroupJob::Stopped);
    group.start();

    QCOMPARE(groupStateChangedSpy.count(), 2);

    QCOMPARE(groupStateChangedSpy.states.at(0), QAnimationGroupJob::Running);
    QCOMPARE(groupStateChangedSpy.states.at(1), QAnimationGroupJob::Stopped);

    QCOMPARE(group.state(), QAnimationGroupJob::Stopped);

    QTest::ignoreMessage(QtWarningMsg, "QAbstractAnimationJob::pause: Cannot pause a stopped animation");
    group.pause();

    QCOMPARE(groupStateChangedSpy.count(), 2);
    QCOMPARE(group.state(), QAnimationGroupJob::Stopped);

    group.start();

    QCOMPARE(groupStateChangedSpy.states.at(2),
             QAnimationGroupJob::Running);
    QCOMPARE(groupStateChangedSpy.states.at(3),
             QAnimationGroupJob::Stopped);

    QCOMPARE(group.state(), QAnimationGroupJob::Stopped);

    group.stop();

    QCOMPARE(groupStateChangedSpy.count(), 4);
    QCOMPARE(group.state(), QAnimationGroupJob::Stopped);
}

void tst_QAnimationGroupJob::setCurrentTime()
{
    // was originally sequence operating on same object/property
    QSequentialAnimationGroupJob *sequence = new QSequentialAnimationGroupJob();
    QAbstractAnimationJob *a1_s_o1 = new TestableGenericAnimation;
    QAbstractAnimationJob *a2_s_o1 = new TestableGenericAnimation;
    QAbstractAnimationJob *a3_s_o1 = new TestableGenericAnimation;
    a2_s_o1->setLoopCount(3);
    sequence->appendAnimation(a1_s_o1);
    sequence->appendAnimation(a2_s_o1);
    sequence->appendAnimation(a3_s_o1);

    // was originally sequence operating on different object/properties
    QAnimationGroupJob *sequence2 = new QSequentialAnimationGroupJob();
    QAbstractAnimationJob *a1_s_o2 = new TestableGenericAnimation;
    QAbstractAnimationJob *a1_s_o3 = new TestableGenericAnimation;
    sequence2->appendAnimation(a1_s_o2);
    sequence2->appendAnimation(a1_s_o3);

    // was originally parallel operating on different object/properties
    QAnimationGroupJob *parallel = new QParallelAnimationGroupJob();
    QAbstractAnimationJob *a1_p_o1 = new TestableGenericAnimation;
    QAbstractAnimationJob *a1_p_o2 = new TestableGenericAnimation;
    QAbstractAnimationJob *a1_p_o3 = new TestableGenericAnimation;
    a1_p_o2->setLoopCount(3);
    parallel->appendAnimation(a1_p_o1);
    parallel->appendAnimation(a1_p_o2);
    parallel->appendAnimation(a1_p_o3);

    QAbstractAnimationJob *notTimeDriven = new UncontrolledAnimation;
    QCOMPARE(notTimeDriven->totalDuration(), -1);

    QAbstractAnimationJob *loopsForever = new TestableGenericAnimation;
    loopsForever->setLoopCount(-1);
    QCOMPARE(loopsForever->totalDuration(), -1);

    QParallelAnimationGroupJob group;
    group.appendAnimation(sequence);
    group.appendAnimation(sequence2);
    group.appendAnimation(parallel);
    group.appendAnimation(notTimeDriven);
    group.appendAnimation(loopsForever);

    // Current time = 1
    group.setCurrentTime(1);
    QCOMPARE(group.state(), QAnimationGroupJob::Stopped);
    QCOMPARE(sequence->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(a1_s_o1->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(sequence2->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(a1_s_o2->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(parallel->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(a1_p_o1->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(a1_p_o2->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(a1_p_o3->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(notTimeDriven->state(), QAnimationGroupJob::Stopped);
    QCOMPARE(loopsForever->state(), QAnimationGroupJob::Stopped);

    QCOMPARE(group.currentLoopTime(), 1);
    QCOMPARE(sequence->currentLoopTime(), 1);
    QCOMPARE(a1_s_o1->currentLoopTime(), 1);
    QCOMPARE(a2_s_o1->currentLoopTime(), 0);
    QCOMPARE(a3_s_o1->currentLoopTime(), 0);
    QCOMPARE(a1_s_o2->currentLoopTime(), 1);
    QCOMPARE(a1_s_o3->currentLoopTime(), 0);
    QCOMPARE(a1_p_o1->currentLoopTime(), 1);
    QCOMPARE(a1_p_o2->currentLoopTime(), 1);
    QCOMPARE(a1_p_o3->currentLoopTime(), 1);
    QCOMPARE(notTimeDriven->currentLoopTime(), 1);
    QCOMPARE(loopsForever->currentLoopTime(), 1);

    // Current time = 250
    group.setCurrentTime(250);
    QCOMPARE(group.currentLoopTime(), 250);
    QCOMPARE(sequence->currentLoopTime(), 250);
    QCOMPARE(a1_s_o1->currentLoopTime(), 250);
    QCOMPARE(a2_s_o1->currentLoopTime(), 0);
    QCOMPARE(a3_s_o1->currentLoopTime(), 0);
    QCOMPARE(a1_s_o2->currentLoopTime(), 250);
    QCOMPARE(a1_s_o3->currentLoopTime(), 0);
    QCOMPARE(a1_p_o1->currentLoopTime(), 250);
    QCOMPARE(a1_p_o2->currentLoopTime(), 0);
    QCOMPARE(a1_p_o2->currentLoop(), 1);
    QCOMPARE(a1_p_o3->currentLoopTime(), 250);
    QCOMPARE(notTimeDriven->currentLoopTime(), 250);
    QCOMPARE(loopsForever->currentLoopTime(), 0);
    QCOMPARE(loopsForever->currentLoop(), 1);
    QCOMPARE(sequence->currentAnimation(), a2_s_o1);

    // Current time = 251
    group.setCurrentTime(251);
    QCOMPARE(group.currentLoopTime(), 251);
    QCOMPARE(sequence->currentLoopTime(), 251);
    QCOMPARE(a1_s_o1->currentLoopTime(), 250);
    QCOMPARE(a2_s_o1->currentLoopTime(), 1);
    QCOMPARE(a2_s_o1->currentLoop(), 0);
    QCOMPARE(a3_s_o1->currentLoopTime(), 0);
    QCOMPARE(sequence2->currentLoopTime(), 251);
    QCOMPARE(a1_s_o2->currentLoopTime(), 250);
    QCOMPARE(a1_s_o3->currentLoopTime(), 1);
    QCOMPARE(a1_p_o1->currentLoopTime(), 250);
    QCOMPARE(a1_p_o2->currentLoopTime(), 1);
    QCOMPARE(a1_p_o2->currentLoop(), 1);
    QCOMPARE(a1_p_o3->currentLoopTime(), 250);
    QCOMPARE(notTimeDriven->currentLoopTime(), 251);
    QCOMPARE(loopsForever->currentLoopTime(), 1);
    QCOMPARE(sequence->currentAnimation(), a2_s_o1);
}

void tst_QAnimationGroupJob::addChildTwice()
{
    QAbstractAnimationJob *subGroup;
    QAbstractAnimationJob *subGroup2;
    QAnimationGroupJob *parent = new QSequentialAnimationGroupJob();

    subGroup = new QAbstractAnimationJob;
    parent->appendAnimation(subGroup);
    parent->appendAnimation(subGroup);
    QVERIFY(parent->firstChild() && !parent->firstChild()->nextSibling());

    parent->clear();

    QVERIFY(!parent->firstChild());

    // adding the same item twice to a group will remove the item from its current position
    // and append it to the end
    subGroup = new QAbstractAnimationJob;
    parent->appendAnimation(subGroup);
    subGroup2 = new QAbstractAnimationJob;
    parent->appendAnimation(subGroup2);

    QCOMPARE(parent->firstChild(), subGroup);
    QCOMPARE(parent->lastChild(), subGroup2);

    parent->appendAnimation(subGroup);

    QCOMPARE(parent->firstChild(), subGroup2);
    QCOMPARE(parent->lastChild(), subGroup);

    delete parent;
}

QTEST_MAIN(tst_QAnimationGroupJob)
#include "tst_qanimationgroupjob.moc"
