/*  This file is part of the KDE libraries
 *  Copyright 2013 Alejandro Fiestas Olivares <afiestas@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 "kdeplatformtheme_config.h"
#include "../src/platformtheme/kfontsettingsdata.h"

#include <Qt>
#include <QTest>
#include <QDir>
#include <QFile>
#include <QString>
#include <QPalette>
#include <QIconEngine>
#include <QApplication>
#include <QDialogButtonBox>

#include <QDBusMessage>
#include <QDBusConnection>

#include <QDebug>

static void prepareEnvironment()
{
    qputenv("KDEHOME", QFile::encodeName(QDir::homePath() + QStringLiteral("/.kde5-unit-test-platformtheme")));
    qputenv("XDG_DATA_HOME", QFile::encodeName(QDir::homePath() + QStringLiteral("/.kde5-unit-test-platformtheme/xdg/local")));
    QByteArray configPath = QFile::encodeName(QDir::homePath() + QStringLiteral("/.kde5-unit-test-platformtheme/xdg/config"));
    qputenv("XDG_CONFIG_HOME", configPath);
    qputenv("KDE_SKIP_KDERC", "1");
    qunsetenv("KDE_COLOR_DEBUG");

    QDir().mkpath(configPath);
    configPath.append("/kdeglobals");
    QFile::remove(configPath);
    QFile::copy(CONFIGFILE, configPath);
}

// Run prepareEnvironment before qApp is created! slightly incorrect, QFile::encodeName can be wrong then.
// But we can't use Q_COREAPP_STARTUP_FUNCTION because the platform theme ends up being created
// first, with the wrong environment.
Q_CONSTRUCTOR_FUNCTION(prepareEnvironment);

class KFontSettingsData_UnitTest : public QWidget
{
    Q_OBJECT
public:
    bool event(QEvent *e) Q_DECL_OVERRIDE
    {
        if (e->type() == QEvent::ApplicationFontChange) {
            m_appChangedFont = true;
        }
        return QWidget::event(e);
    }
private:
    bool m_appChangedFont;
    KFontSettingsData *m_fonts;
private Q_SLOTS:
    void initTestCase()
    {
        m_appChangedFont = false;
        m_fonts = new KFontSettingsData;
    }

    void testFonts()
    {
        QCOMPARE(m_fonts->font(KFontSettingsData::GeneralFont)->family(), QStringLiteral("OxyFontTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::FixedFont)->family(), QStringLiteral("OxyFixedTest Mono"));
        QCOMPARE(m_fonts->font(KFontSettingsData::ToolbarFont)->family(), QStringLiteral("OxyToolbarTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::MenuFont)->family(), QStringLiteral("OxyMenuTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::WindowTitleFont)->family(), QStringLiteral("OxyActiveTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::TaskbarFont)->family(), QStringLiteral("OxyTaskbarTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::SmallestReadableFont)->family(), QStringLiteral("OxySmallestReadableTest"));
    }

    void testFontsChanged()
    {
        QByteArray configPath = qgetenv("XDG_CONFIG_HOME");
        configPath.append("/kdeglobals");
        QFile::remove(configPath);
        QFile::copy(CHANGED_CONFIGFILE, configPath);

        QEventLoop loop;
        QDBusConnection::sessionBus().connect(QString(), "/KDEPlatformTheme", "org.kde.KDEPlatformTheme",
                                              "refreshFonts", &loop, SLOT(quit()));

        QDBusMessage message = QDBusMessage::createSignal("/KDEPlatformTheme", "org.kde.KDEPlatformTheme", "refreshFonts");
        QDBusConnection::sessionBus().send(message);
        loop.exec();

        QVERIFY(m_appChangedFont);
        QCOMPARE(m_fonts->font(KFontSettingsData::GeneralFont)->family(), QStringLiteral("ChangedFontTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::FixedFont)->family(), QStringLiteral("ChangedFixedTest Mono"));
        QCOMPARE(m_fonts->font(KFontSettingsData::ToolbarFont)->family(), QStringLiteral("ChangedToolbarTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::MenuFont)->family(), QStringLiteral("ChangedMenuTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::WindowTitleFont)->family(), QStringLiteral("ChangedActiveTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::TaskbarFont)->family(), QStringLiteral("ChangedTaskbarTest"));
        QCOMPARE(m_fonts->font(KFontSettingsData::SmallestReadableFont)->family(), QStringLiteral("ChangedSmallestReadableTest"));
    }
};

QTEST_MAIN(KFontSettingsData_UnitTest)

#include "kfontsettingsdata_unittest.moc"

