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#include "../../widgets/util.h"
#include <QtTest/QtTest>
#include <QtWebEngineCore/qwebenginecallback.h>
#include <QtWebEngineCore/qwebenginecookiestore.h>
#include <QtWebEngineWidgets/qwebenginepage.h>
#include <QtWebEngineWidgets/qwebengineprofile.h>
#include <QtWebEngineWidgets/qwebengineview.h>

class tst_QWebEngineCookieStore : public QObject
{
    Q_OBJECT

public:
    tst_QWebEngineCookieStore();
    ~tst_QWebEngineCookieStore();

public Q_SLOTS:
    void init();
    void cleanup();

private Q_SLOTS:
    void initTestCase();
    void cleanupTestCase();
    void cookieSignals();
    void setAndDeleteCookie();
    void batchCookieTasks();
};

tst_QWebEngineCookieStore::tst_QWebEngineCookieStore()
{
}

tst_QWebEngineCookieStore::~tst_QWebEngineCookieStore()
{
}

void tst_QWebEngineCookieStore::init()
{
}

void tst_QWebEngineCookieStore::cleanup()
{
}

void tst_QWebEngineCookieStore::initTestCase()
{
}

void tst_QWebEngineCookieStore::cleanupTestCase()
{
}

void tst_QWebEngineCookieStore::cookieSignals()
{
    QWebEngineView view;
    QWebEngineCookieStore *client = view.page()->profile()->cookieStore();

    QSignalSpy loadSpy(&view, SIGNAL(loadFinished(bool)));
    QSignalSpy cookieAddedSpy(client, SIGNAL(cookieAdded(const QNetworkCookie &)));
    QSignalSpy cookieRemovedSpy(client, SIGNAL(cookieRemoved(const QNetworkCookie &)));

    view.load(QUrl("qrc:///resources/index.html"));

    QTRY_COMPARE(loadSpy.count(), 1);
    QVariant success = loadSpy.takeFirst().takeFirst();
    QVERIFY(success.toBool());
    QTRY_COMPARE(cookieAddedSpy.count(), 2);

    // try whether updating a cookie to be expired results in that cookie being removed.
    QNetworkCookie expiredCookie(QNetworkCookie::parseCookies(QByteArrayLiteral("SessionCookie=delete; expires=Thu, 01-Jan-1970 00:00:00 GMT; path=///resources")).first());
    client->setCookie(expiredCookie, QUrl("qrc:///resources/index.html"));
    QTRY_COMPARE(cookieRemovedSpy.count(), 1);
    cookieRemovedSpy.clear();

    // try removing the other cookie.
    QNetworkCookie nonSessionCookie(QNetworkCookie::parseCookies(QByteArrayLiteral("CookieWithExpiresField=QtWebEngineCookieTest; path=///resources")).first());
    client->deleteCookie(nonSessionCookie, QUrl("qrc:///resources/index.html"));
    QTRY_COMPARE(cookieRemovedSpy.count(), 1);
}

void tst_QWebEngineCookieStore::setAndDeleteCookie()
{
    QTest::qWait(500);  // remove, when QTBUG-47946 is fixed!
    QWebEngineView view;
    QWebEngineCookieStore *client = view.page()->profile()->cookieStore();

    QSignalSpy loadSpy(&view, SIGNAL(loadFinished(bool)));
    QSignalSpy cookieAddedSpy(client, SIGNAL(cookieAdded(const QNetworkCookie &)));
    QSignalSpy cookieRemovedSpy(client, SIGNAL(cookieRemoved(const QNetworkCookie &)));

    QNetworkCookie cookie1(QNetworkCookie::parseCookies(QByteArrayLiteral("khaos=I9GX8CWI; Domain=.example.com; Path=/docs")).first());
    QNetworkCookie cookie2(QNetworkCookie::parseCookies(QByteArrayLiteral("Test%20Cookie=foobar; domain=example.com; Path=/")).first());
    QNetworkCookie cookie3(QNetworkCookie::parseCookies(QByteArrayLiteral("SessionCookie=QtWebEngineCookieTest; Path=///resources")).first());
    QNetworkCookie expiredCookie3(QNetworkCookie::parseCookies(QByteArrayLiteral("SessionCookie=delete; expires=Thu, 01-Jan-1970 00:00:00 GMT; path=///resources")).first());

    // check if pending cookies are set and removed
    client->setCookieWithCallback(cookie1, [](bool success) { QVERIFY(success); });
    client->setCookieWithCallback(cookie2, [](bool success) { QVERIFY(success); });
    client->deleteCookie(cookie1);

    view.load(QUrl("qrc:///resources/content.html"));

    QTRY_COMPARE(loadSpy.count(), 1);
    QVariant success = loadSpy.takeFirst().takeFirst();
    QVERIFY(success.toBool());
    QTRY_COMPARE(cookieAddedSpy.count(), 2);
    QTRY_COMPARE(cookieRemovedSpy.count(), 1);
    cookieAddedSpy.clear();
    cookieRemovedSpy.clear();

    client->setCookieWithCallback(cookie3, [](bool success) { QVERIFY(success); });
    // updating a cookie with an expired 'expires' field should remove the cookie with the same name
    client->setCookieWithCallback(expiredCookie3, [](bool success) { QVERIFY(success); });
    client->deleteCookie(cookie2);
    QTRY_COMPARE(cookieAddedSpy.count(), 1);
    QTRY_COMPARE(cookieRemovedSpy.count(), 2);
}

void tst_QWebEngineCookieStore::batchCookieTasks()
{
    QTest::qWait(500);  // remove, when QTBUG-47946 is fixed!
    QWebEngineView view;
    QWebEngineCookieStore *client = view.page()->profile()->cookieStore();

    QSignalSpy loadSpy(&view, SIGNAL(loadFinished(bool)));
    QSignalSpy cookieAddedSpy(client, SIGNAL(cookieAdded(const QNetworkCookie &)));
    QSignalSpy cookieRemovedSpy(client, SIGNAL(cookieRemoved(const QNetworkCookie &)));

    QNetworkCookie cookie1(QNetworkCookie::parseCookies(QByteArrayLiteral("khaos=I9GX8CWI; Domain=.example.com; Path=/docs")).first());
    QNetworkCookie cookie2(QNetworkCookie::parseCookies(QByteArrayLiteral("Test%20Cookie=foobar; domain=example.com; Path=/")).first());

    int capture = 0;

    client->setCookieWithCallback(cookie1, [&capture](bool success) { QVERIFY(success); ++capture; });
    client->setCookieWithCallback(cookie2, [&capture](bool success) { QVERIFY(success); ++capture; });

    view.load(QUrl("qrc:///resources/index.html"));

    QTRY_COMPARE(loadSpy.count(), 1);
    QVariant success = loadSpy.takeFirst().takeFirst();
    QVERIFY(success.toBool());
    QTRY_COMPARE(cookieAddedSpy.count(), 4);
    QTRY_COMPARE(cookieRemovedSpy.count(), 0);
    QTRY_COMPARE(capture, 2);
    capture = 0;

    cookieAddedSpy.clear();
    cookieRemovedSpy.clear();

    client->getAllCookies([&capture](const QByteArray& cookieLine) {
        ++capture;
        QCOMPARE(QNetworkCookie::parseCookies(cookieLine).count(), 4);
    });

    client->deleteSessionCookiesWithCallback([&capture](int numDeleted) {
        ++capture;
        QCOMPARE(numDeleted, 3);
    });

    client->deleteAllCookiesWithCallback([&capture](int numDeleted) {
        ++capture;
        QCOMPARE(numDeleted, 1);
    });

    QTRY_COMPARE(capture, 3);
}

QTEST_MAIN(tst_QWebEngineCookieStore)
#include "tst_qwebenginecookiestore.moc"