/* Формат канального события: live/history сохраняются при передаче в GUI, битые события отбрасываются. */
#include "../transport/gui_bridge.h"
#include "../../../lib/debug_config.h"
#include <QtTest>
#include <cstring>

struct ReceivedMessage {
    QString channel;
    quint64 author;
    bool initialSync;
    bool guiThread;
};
static QList<ReceivedMessage> received;

static void message_received(const char* channel, int length, uint64_t author, int initial_sync) {
    received.append({QString::fromUtf8(channel, length), author, initial_sync != 0, QThread::currentThread() == qApp->thread()});
}

static QByteArray message_event(quint64 author, bool initialSync) {
    const QByteArray channel("12345");
    QByteArray event(1 + channel.size() + 9, '\0');
    event[0] = char(channel.size());
    memcpy(event.data() + 1, channel.constData(), channel.size());
    memcpy(event.data() + 1 + channel.size(), &author, 8);
    event[event.size() - 1] = initialSync;
    return event;
}

static void post_message(const QByteArray& event) {
    gui_bridge_post(GUI_EVT_MSG_RECEIVED, reinterpret_cast<const uint8_t*>(event.constData()), event.size());
}

class MessageEventTest : public QObject {
    Q_OBJECT
private slots:
    void initTestCase() {
        debug_config_init();
        debug_set_level(DEBUG_LEVEL_DEBUG);
        gui_bridge_init();
        gui_bridge_set_msg_received_cb(message_received);
    }
    void cleanupTestCase() { gui_bridge_set_msg_received_cb(nullptr); }
    void init() { received.clear(); }

    void liveAndHistory() {
        post_message(message_event(42, false));
        post_message(message_event(43, true));
        QTRY_COMPARE(received.size(), 2);
        QCOMPARE(received[0].channel, QString("12345"));
        QCOMPARE(received[0].author, quint64(42));
        QVERIFY(!received[0].initialSync);
        QVERIFY(received[0].guiThread);
        QCOMPARE(received[1].author, quint64(43));
        QVERIFY(received[1].initialSync);
        QVERIFY(received[1].guiThread);
    }

    void rejectsMalformedEvents() {
        QByteArray event = message_event(42, false);
        event.chop(1);
        post_message(event);
        event = message_event(42, false);
        event[event.size() - 1] = 2;
        post_message(event);
        event = message_event(42, false);
        event[0] = char(255);
        post_message(event);
        post_message({});
        QTest::qWait(100);
        QVERIFY(received.isEmpty());
    }
};

QTEST_MAIN(MessageEventTest)
#include "test_message_events.moc"