/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.

Copyright (C) 2017 Martin Gräßlin <mgraesslin@kde.org>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "kwin_wayland_test.h"
#include "keyboard_input.h"
#include "platform.h"
#include "wayland_server.h"

#include <KConfigGroup>

#include <QDBusConnection>
#include <QDBusMessage>

using namespace KWin;
using namespace KWayland::Client;

static const QString s_socketName = QStringLiteral("wayland_test_kwin_keyboard_laout-0");

class KeyboardLayoutTest : public QObject
{
    Q_OBJECT
private Q_SLOTS:
    void initTestCase();
    void init();
    void cleanup();

    void testReconfigure();
};

void KeyboardLayoutTest::initTestCase()
{
    QSignalSpy workspaceCreatedSpy(kwinApp(), &Application::workspaceCreated);
    QVERIFY(workspaceCreatedSpy.isValid());
    kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
    QVERIFY(waylandServer()->init(s_socketName.toLocal8Bit()));

    kwinApp()->setConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));
    kwinApp()->setKxkbConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));

    kwinApp()->start();
    QVERIFY(workspaceCreatedSpy.wait());
    waylandServer()->initWorkspace();
}

void KeyboardLayoutTest::init()
{
}

void KeyboardLayoutTest::cleanup()
{
}

void KeyboardLayoutTest::testReconfigure()
{
    // verifies that we can change the keymap

    // default should be a keymap with only us layout
    auto xkb = input()->keyboard()->xkb();
    QCOMPARE(xkb->numberOfLayouts(), 1u);
    QCOMPARE(xkb->layoutName(), QStringLiteral("English (US)"));
    auto layouts = xkb->layoutNames();
    QCOMPARE(layouts.size(), 1);
    QVERIFY(layouts.contains(0));
    QCOMPARE(layouts[0], QStringLiteral("English (US)"));

    // create a new keymap
    KConfigGroup layoutGroup = kwinApp()->kxkbConfig()->group("Layout");
    layoutGroup.writeEntry("LayoutList", QStringLiteral("de,us"));
    layoutGroup.sync();

    // create DBus signal to reload
    QDBusMessage message = QDBusMessage::createSignal(QStringLiteral("/Layouts"), QStringLiteral("org.kde.keyboard"), QStringLiteral("reloadConfig"));
    QDBusConnection::sessionBus().send(message);
    // now we should have two layouts
    QTRY_COMPARE(xkb->numberOfLayouts(), 2u);
    // default layout is German
    QCOMPARE(xkb->layoutName(), QStringLiteral("German"));
    layouts = xkb->layoutNames();
    QCOMPARE(layouts.size(), 2);
    QVERIFY(layouts.contains(0));
    QVERIFY(layouts.contains(1));
    QCOMPARE(layouts[0], QStringLiteral("German"));
    QCOMPARE(layouts[1], QStringLiteral("English (US)"));
}

WAYLANDTEST_MAIN(KeyboardLayoutTest)
#include "keyboard_layout_test.moc"