//
// Created by robin on 1/30/18.
//


#include <gtest/gtest.h>
#include <QtCore/QCoreApplication>
#include <QtCore/QTimer>
#include <QtNetwork/QTcpSocket>

#include "dns-server/QDnsTcpServer.h"

#include "serverTests.h"

struct DnsTcpServerTestParams
{
    QList<const char*> hexData;
};

class DnsTcpServerTest : public ::testing::TestWithParam<DnsTcpServerTestParams>
{
};

TEST_P(DnsTcpServerTest, simple)
{
    auto params = GetParam();
    QCoreApplication app(m_argc, m_argv);

    QTimer timer;
    QObject::connect(&timer, &QTimer::timeout, qApp, &QCoreApplication::quit);
    timer.start(1000);

    QDns::Server::QDnsTcpServer server;
    ASSERT_TRUE(server.start(QHostAddress("127.0.0.1"), 5053));
    QList<QDns::Base::QDnsPacket> packets;
    QObject::connect(&server, &QDns::Server::QDnsServer::onRequest, [&packets](QDns::Server::QDnsServer::OnRequestParams params)
    {
        packets.append(params.query);
    });
    QList<QDns::Base::QDnsPacket> expectedPackets;
    QTcpSocket socket;
    socket.connectToHost(QHostAddress("127.0.0.1"), 5053);
    socket.waitForConnected();
    for (auto hexData : params.hexData)
    {
        auto data = QByteArray::fromHex(hexData);
        QByteArray size;
        QDataStream dataStream(&size, QIODevice::WriteOnly);
        dataStream << (quint16) data.size();
        socket.write(size.constData(), size.size());
        socket.write(data.constData(), data.length());
        QDns::Base::QDnsPacket packet(data);
        if (packet.isValid())
        {
            expectedPackets.append(packet);
        }
    }
    socket.disconnectFromHost();
    socket.waitForDisconnected();

    ASSERT_EQ(app.exec(), 0);
    ASSERT_EQ(packets.size(), expectedPackets.size());
}

INSTANTIATE_TEST_CASE_P(DnsTcpServerTestInst,
                        DnsTcpServerTest,
                        ::testing::Values(
                                DnsTcpServerTestParams
                                        {
                                                QList<const char*>()
                                                        << "e1bc010000010000000000000266720000010001"
                                                        << "00"
                                                        << "e1bc010000010000000000000266720000010001"
                                        }
                        ));