/*
    SPDX-FileCopyrightText: 2016 Eike Hein <hein@kde.org>

    SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/

#include <QObject>

#include <KConfigGroup>
#include <KDesktopFile>
#include <KIconTheme>
#include <KSharedConfig>
#include <KSycoca>

#include <QDir>
#include <QIcon>
#include <QStandardPaths>
#include <QTemporaryDir>
#include <QTest>

#include "tasktools.h"

// Taken from tst_qstandardpaths.
#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC) && !defined(Q_OS_BLACKBERRY) && !defined(Q_OS_ANDROID)
#define Q_XDG_PLATFORM
#endif

using namespace TaskManager;

class TaskToolsTest : public QObject
{
    Q_OBJECT

private Q_SLOTS:
    void initTestCase();
    void cleanupTestCase();

    void shouldFindApp();
    void shouldFindDefaultApp();
    void shouldCompareLauncherUrls();

private:
    QString appLinkPath();
    void fillReferenceAppData();
    void createAppLink();
    void createIcon();

    AppData m_referenceAppData;
    QTemporaryDir m_tempDir;
};

void TaskToolsTest::initTestCase()
{
    QStandardPaths::setTestModeEnabled(true);

    QVERIFY(m_tempDir.isValid());
    QVERIFY(QDir().mkpath(m_tempDir.path() + QLatin1String("/config")));
    QVERIFY(QDir().mkpath(m_tempDir.path() + QLatin1String("/cache")));
    QVERIFY(QDir().mkpath(m_tempDir.path() + QLatin1String("/data/applications")));

#ifdef Q_XDG_PLATFORM
    qputenv("XDG_CONFIG_HOME", QFile::encodeName(m_tempDir.path() + QLatin1String("/config")));
    qputenv("XDG_CACHE_HOME", QFile::encodeName(m_tempDir.path() + QLatin1String("/cache")));
    qputenv("XDG_DATA_DIRS", QFile::encodeName(m_tempDir.path() + QLatin1String("/data")));
#else
    QSKIP("This test requires XDG.");
#endif

    createIcon();
    fillReferenceAppData();
    createAppLink();

    QFile::remove(KSycoca::absoluteFilePath());
    KSycoca::self()->ensureCacheValid();
    QVERIFY(QFile::exists(KSycoca::absoluteFilePath()));
}

void TaskToolsTest::cleanupTestCase()
{
    QFile::remove(KSycoca::absoluteFilePath());
}

void TaskToolsTest::shouldFindApp()
{
    // FIXME Test icon.

    const AppData &data = appDataFromUrl(QUrl::fromLocalFile(appLinkPath()));

    QCOMPARE(data.id, m_referenceAppData.id);
    QCOMPARE(data.name, m_referenceAppData.name);
    QCOMPARE(data.genericName, m_referenceAppData.genericName);
    QCOMPARE(data.url, m_referenceAppData.url);
}

void TaskToolsTest::shouldFindDefaultApp()
{
    // FIXME Test other recognized default app types.

    KConfigGroup config(KSharedConfig::openConfig(), "General");
    config.writePathEntry("BrowserApplication", QLatin1String("konqueror"));

    QVERIFY(defaultApplication(QUrl("wrong://url")).isEmpty());
    QCOMPARE(defaultApplication(QUrl("preferred://browser")), QLatin1String("konqueror"));
}

void TaskToolsTest::shouldCompareLauncherUrls()
{
    QUrl a(QLatin1String("file:///usr/share/applications/org.kde.dolphin.desktop"));
    QUrl b(QLatin1String("file:///usr/share/applications/org.kde.konsole.desktop"));
    QUrl c(QLatin1String("file:///usr/share/applications/org.kde.dolphin.desktop?iconData=foo"));
    QUrl d(QLatin1String("file:///usr/share/applications/org.kde.konsole.desktop?iconData=bar"));

    QVERIFY(launcherUrlsMatch(QUrl(a), QUrl(a)));
    QVERIFY(launcherUrlsMatch(QUrl(a), QUrl(a), Strict));
    QVERIFY(launcherUrlsMatch(QUrl(a), QUrl(a), IgnoreQueryItems));

    QVERIFY(!launcherUrlsMatch(QUrl(a), QUrl(b)));
    QVERIFY(!launcherUrlsMatch(QUrl(a), QUrl(b), Strict));
    QVERIFY(!launcherUrlsMatch(QUrl(a), QUrl(b), IgnoreQueryItems));

    QVERIFY(!launcherUrlsMatch(QUrl(b), QUrl(c), Strict));
    QVERIFY(!launcherUrlsMatch(QUrl(c), QUrl(d), Strict));

    QVERIFY(launcherUrlsMatch(QUrl(a), QUrl(c), IgnoreQueryItems));
    QVERIFY(!launcherUrlsMatch(QUrl(c), QUrl(d), IgnoreQueryItems));
}

QString TaskToolsTest::appLinkPath()
{
    return QString(m_tempDir.path() + QLatin1String("/data/applications/org.kde.konversation.desktop"));
}

void TaskToolsTest::fillReferenceAppData()
{
    // FIXME Add icon.

    m_referenceAppData.id = QLatin1String("org.kde.konversation");
    m_referenceAppData.name = QLatin1String("Konversation");
    m_referenceAppData.genericName = QLatin1String("IRC Client");
    m_referenceAppData.url = QUrl("applications:org.kde.konversation.desktop");
}

void TaskToolsTest::createAppLink()
{
    KDesktopFile file(appLinkPath());
    KConfigGroup group = file.desktopGroup();
    group.writeEntry(QLatin1String("Type"), QStringLiteral("Application"));
    group.writeEntry(QLatin1String("Name"), m_referenceAppData.name);
    group.writeEntry(QLatin1String("GenericName"), m_referenceAppData.genericName);
    group.writeEntry(QLatin1String("Icon"), QStringLiteral("konversation"));
    group.writeEntry(QLatin1String("Exec"), QStringLiteral("konversation"));
    file.sync();

    QVERIFY(file.hasApplicationType());

    QVERIFY(QFile::exists(appLinkPath()));
    QVERIFY(KDesktopFile::isDesktopFile(appLinkPath()));
}

void TaskToolsTest::createIcon()
{
    // FIXME KIconLoaderPrivate::initIconThemes: Error: standard icon theme "oxygen" not found!

    QString iconDir = m_tempDir.path() + QLatin1String("/data/icons/");

    QVERIFY(QDir().mkpath(iconDir));

    QIcon::setThemeSearchPaths(QStringList() << m_tempDir.path() + QLatin1String("/data/icons/"));
    QCOMPARE(QIcon::themeSearchPaths(), QStringList() << iconDir);

    iconDir = iconDir + QLatin1String("/") + KIconTheme::defaultThemeName();

    QVERIFY(QDir().mkpath(iconDir));

    const QString &themeFile = iconDir + QLatin1String("/index.theme");

    KConfig config(themeFile);
    KConfigGroup group(config.group(QLatin1String("Icon Theme")));
    group.writeEntry(QLatin1String("Name"), KIconTheme::defaultThemeName());
    group.writeEntry(QLatin1String("Inherits"), QStringLiteral("hicolor"));
    config.sync();

    QVERIFY(QFile::exists(themeFile));

    iconDir = iconDir + QLatin1String("/64x64/apps");

    QVERIFY(QDir().mkpath(iconDir));

    const QString &iconPath = iconDir + QLatin1String("/konversation.png");

    QImage image(64, 64, QImage::Format_Mono);
    image.save(iconPath);

    QVERIFY(QFile::exists(iconPath));
}

QTEST_MAIN(TaskToolsTest)

#include "tasktoolstest.moc"