// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtTest/QtTest>

#include <QtCore/QThread>
#include <QtCore/QUrl>
#include <QtCore/QFileInfo>

#include <QtHelp/QHelpEngine>
#include <QtHelp/QHelpContentWidget>

class SignalWaiter : public QThread
{
    Q_OBJECT

public:
    SignalWaiter();
    void run() override;

public slots:
    void stopWaiting();

private:
    bool stop;
};

SignalWaiter::SignalWaiter()
{
    stop = false;
}

void SignalWaiter::run()
{
    while (!stop)
        msleep(500);
    stop = false;
}

void SignalWaiter::stopWaiting()
{
    stop = true;
}


class tst_QHelpContentModel : public QObject
{
    Q_OBJECT

private slots:
    void init();

    void setupContents();
    void contentItemAt();

private:
    QString m_colFile;
};

void tst_QHelpContentModel::init()
{
    // defined in profile
    QString path = QLatin1String(SRCDIR);

    m_colFile = path + QLatin1String("/data/col.qhc");
    if (QFile::exists(m_colFile))
        QDir::current().remove(m_colFile);
    if (!QFile::copy(path + "/data/collection.qhc", m_colFile))
        QFAIL("Cannot copy file!");
    QFile f(m_colFile);
    f.setPermissions(QFile::WriteUser|QFile::ReadUser);
}

void tst_QHelpContentModel::setupContents()
{
    QHelpEngine h(m_colFile, 0);
    h.setReadOnly(false);
    QHelpContentModel *m = h.contentModel();
    SignalWaiter w;
    connect(m, &QHelpContentModel::contentsCreated, &w, &SignalWaiter::stopWaiting);
    w.start();
    h.setupData();
    int i = 0;
    while (w.isRunning() && i++ < 10)
        QTest::qWait(500);

    QCOMPARE(h.currentFilter(), QString("unfiltered"));
    QCOMPARE(m->rowCount(), 4);

    w.start();
    h.setCurrentFilter("Custom Filter 1");
    i = 0;
    while (w.isRunning() && i++ < 10)
        QTest::qWait(500);

     QCOMPARE(m->rowCount(), 1);
}

void tst_QHelpContentModel::contentItemAt()
{
    QHelpEngine h(m_colFile, 0);
    h.setReadOnly(false);
    QHelpContentModel *m = h.contentModel();
    SignalWaiter w;
    connect(m, &QHelpContentModel::contentsCreated, &w, &SignalWaiter::stopWaiting);
    w.start();
    h.setupData();
    int i = 0;
    while (w.isRunning() && i++ < 10)
        QTest::qWait(500);

    QCOMPARE(h.currentFilter(), QString("unfiltered"));

    QModelIndex root = m->index(2, 0);
    if (!root.isValid())
        QFAIL("Cannot retrieve root item!");
    QHelpContentItem *item = m->contentItemAt(root);
    if (!item)
        QFAIL("Cannot retrieve content item!");
    QCOMPARE(item->title(), QString("qmake Manual"));

    item = m->contentItemAt(m->index(4, 0, root));
    QCOMPARE(item->title(), QString("qmake Concepts"));

    item = m->contentItemAt(m->index(0, 0));
    QCOMPARE(item->title(), QString("Fancy Manual"));

    w.start();
    h.setCurrentFilter("Custom Filter 1");
    i = 0;
    while (w.isRunning() && i++ < 10)
        QTest::qWait(500);

    item = m->contentItemAt(m->index(0, 0));
    QCOMPARE(item->title(), QString("Test Manual"));
}

QTEST_MAIN(tst_QHelpContentModel)
#include "tst_qhelpcontentmodel.moc"