texam.cpp

/***************************************************************************
 *   Copyright (C) 2011-2021 by Tomasz Bojczuk                             *
 *   seelook@gmail.com                                                     *
 *                                                                         *
 *   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 3 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 "texam.h"
#include "tattempt.h"
#include "tglobals.h"
#include "tlevel.h"
#include <QtCore/qdatastream.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qdir.h>
#include <QtCore/qfile.h>
#include <QtCore/qrandom.h>
#include <QtCore/qsettings.h>
#include <QtWidgets/qmessagebox.h>
#if defined(Q_OS_ANDROID)
#include <Android/tandroid.h>
#endif

#include <QtCore/qdebug.h>

/*static*/
/**
 * Versions history:
 *
 * 1. 0x95121702;
 *
 * 2. 0x95121704; (2012.07)
 *     - exam stores penalties in the list
 *
 * 3. 0x95121706 (2013.12.02)
 *     - new level version
 *
 * 4. 0x95121708 (2014.09.01)
 *    - encoded XML structure
 *
 * 5. 0x9512170A (05.02.2018)
 *    - new instruments, melodies in Music XML, new mistake types - it can not be compatible with older versions
 *
 * 6. 0x9512170C (09.06.2021)
 *    - ukulele support - opening with previous versions would cause problems
 *
 */

const qint32 Texam::examVersion = 0x95121702;
const qint32 Texam::examVersion2 = 0x95121704;
const qint32 Texam::currentVersion = 0x9512170C; // version 5

const quint16 Texam::maxAnswerTime = 65500;

int Texam::examVersionNr(qint32 ver)
{
    if ((ver - examVersion) % 2)
        return -1; // invalid when rest of division is 1
    return ((ver - examVersion) / 2) + 1;
}

bool Texam::couldBeExam(qint32 ver)
{
    int givenVersion = examVersionNr(ver);
    if (givenVersion >= 1 && givenVersion <= 127)
        return true;
    else
        return false;
}

bool Texam::isExamVersion(qint32 ver)
{
    if (examVersionNr(ver) <= examVersionNr(currentVersion))
        return true;
    else
        return false;
}

/** Obsolete! It has no meaning in XML versions (above 3) */
qint32 Texam::examVersionToLevel(qint32 examVer)
{
    if (examVersionNr(examVer) <= 2)
        return Tlevel::getVersionId(1); // level version 1 for exam versions 1 and 2
    else
        return Tlevel::getVersionId(2); // level version 2 for exam versions 3 and so
}

bool Texam::areQuestTheSame(TQAunit *q1, TQAunit *q2)
{
    if (q1->questionAs == q2->questionAs && // the same questions
        q1->answerAs == q2->answerAs && // the same answers
        q1->qa.note == q2->qa.note && // the same notes
        q1->qa.pos() == q2->qa.pos() // the same frets
    )
        return true;
    else
        return false;
}

QString Texam::formatReactTime(quint16 timeX10, bool withUnit)
{
    QString hh, mm, ss;
    int dig = 0;
    if (timeX10 / 36000) {
        hh = QString("%1").arg(timeX10 / 36000);
        dig = 2;
    }
    int dig2 = 0;
    if ((timeX10 % 36000) / 600) {
        mm = QString("%1").arg((timeX10 % 36000) / 600, dig, 'i', 0, '0');
        dig2 = 2;
    }
    ss = QString("%1").arg(((timeX10 % 36000) % 600) / 10, dig2, 'i', 0, '0');
    QString res;
    if (!hh.isEmpty())
        res = hh + QLatin1String(":");
    if (!mm.isEmpty())
        res += mm + QLatin1String(":");
    QString unitS;
    if (withUnit && timeX10 < 600)
        unitS = QLatin1String(" s");
    return res + ss + QString(".%1").arg(timeX10 % 10) + unitS;
}

/*end of static*/

// #################################################################################################
// ###################             CONSTRUCTOR          ############################################
// #################################################################################################
Texam::Texam(Tlevel *l, const QString &userName)
    : m_fileName(QString())
    , m_userName(userName)
    , m_totalTime(0)
    , m_attempts(0)
    , m_mistNr(0)
    , m_tmpMist(0)
    , m_averReactTime(0)
    , m_workTime(0)
    , m_halfMistNr(0)
    , m_tmpHalf(0)
    , m_isFinished(false)
    , m_melody(false)
    , m_isExercise(false)
    , m_penaltysNr(0)
    , m_blackCount(0)
    , m_okTime(0)
    , m_effectivenes(0.0)
    , m_skippedUnit(nullptr)
{
    setLevel(l);
}

Texam::~Texam()
{
    clearAnswList();
    m_blackList.clear();
    m_blackNumbers.clear();
    if (m_skippedUnit)
        delete m_skippedUnit;
}

// #################################################################################################
// ###################                PUBLIC            ############################################
// #################################################################################################
void Texam::setExercise()
{
    if (count()) {
        qDebug() << "[Texam] Exam has got questions already. Can't set it as an exercise!";
        return;
    }
    setFileName(QDir::toNativeSeparators(QFileInfo(GLOB->config->fileName()).absolutePath() + QLatin1String("/exercise2.noo")));
    m_isExercise = true;
}

void Texam::setLevel(Tlevel *l)
{
    m_level = l;
    m_melody = l->canBeMelody();
}

void Texam::setFileName(const QString &fileName)
{
    if (isExercise()) {
        qDebug() << "[Texam] Can not set a file name for exercise";
        return;
    }
    m_fileName = fileName;
}

void Texam::skipLast(bool skip)
{
    if (skip != (bool)m_skippedUnit) {
        if (skip) {
            if (m_skippedUnit)
                qDebug() << "[Texam] Previously skipped question unit will be overridden by newly skipped.";
            delete m_skippedUnit;
            m_skippedUnit = m_answList.takeLast();
        } else {
            if (!m_skippedUnit)
                qDebug() << "[Texam] There is no skipped unit to revert it back!";
            else {
                m_answList << m_skippedUnit;
                m_skippedUnit = 0;
            }
        }
    }
}

Texam::EerrorType Texam::loadFromFile(const QString &fileName)
{
#if defined(Q_OS_ANDROID)
    Tandroid::askForWriteAcces();
#endif
    m_okTime = 0;
    m_tmpMist = 0;
    m_tmpHalf = 0;
    m_fileName = fileName;
    QFile file(fileName);
    m_workTime = 0;
    m_mistNr = 0;
    m_blackCount = 0;
    m_attempts = 0;
    m_isExercise = false;
    m_blackList.clear();
    clearAnswList();
    EerrorType result = e_file_OK;
    quint32 ev; // exam template version
    if (file.open(QIODevice::ReadOnly)) {
        QDataStream in(&file);
        in >> ev;
        if (couldBeExam(ev)) {
            if (!isExamVersion(ev)) {
                qDebug() << "[Texam] Exam file" << fileName << "created with newer Nootka version";
                GLOB->warnAboutNewerVersion(fileName);
                return e_newerVersion;
            }
        } else
            return e_file_not_valid;

        bool isExamFileOk = true;
        if (examVersionNr(ev) > 3) {
            if (examVersionNr(ev) > 5)
                in.setVersion(QDataStream::Qt_5_9);
            else
                in.setVersion(QDataStream::Qt_5_2);
            QByteArray arrayXML = file.readAll();
            arrayXML.remove(0, 4);
            QByteArray unZipXml = qUncompress(arrayXML);
            if (!unZipXml.isEmpty()) {
                QXmlStreamReader xml(unZipXml);
                isExamFileOk = loadFromXml(xml);
            } else {
                qDebug() << "[Texam] Problems with decompressing exam file";
                return e_file_not_valid;
            }
        } else {
            in.setVersion(QDataStream::Qt_4_7);
            isExamFileOk = loadFromBin(in, ev);
        }

        m_melody = m_level->canBeMelody();
        updateEffectiveness();
        updateAverageReactTime(true);

        if (!isExamFileOk)
            result = e_file_corrupted;
        file.close();
    } else {
        Tlevel::fileIOerrorMsg(file);
        result = e_cant_open;
    }
    updateBlackCount();

    if (m_level->clef.type() == Tclef::Bass_F_8down) {
        qDebug() << "[Texam] OBSOLETE bass dropped clef detected. Converting exam to ordinary bass clef.";
        transposeAfterBassDropped();
    }

    return result;
}

bool Texam::loadFromBin(QDataStream &in, quint32 ev)
{
    quint16 questNr;
    bool isExamFileOk = true;
    in >> m_userName;
    getLevelFromStream(in, *(m_level), examVersionToLevel(ev));
    in >> m_tune;
    in >> m_totalTime;
    in >> questNr >> m_averReactTime >> m_mistNr;
    if (examVersionNr(ev) >= 2) {
        in >> m_halfMistNr >> m_penaltysNr >> m_isFinished;
    } else { // exam version 1
        m_halfMistNr = 0;
        m_penaltysNr = 0;
        m_isFinished = false;
    }
    while (!in.atEnd()) {
        TQAunit qaUnit;
        if (!getTQAunitFromStream(in, qaUnit))
            isExamFileOk = false;
        if ((qaUnit.questionAs == TQAtype::e_asName || qaUnit.answerAs == TQAtype::e_asName) && qaUnit.styleOfQuestion() < 0) {
            qaUnit.setStyle(static_cast<Tnote::EnameStyle>(GLOB->noteNameStyle()), qaUnit.styleOfAnswer());
        } /** In old versions, style was set to 0 so now it gives styleOfQuestion = -1
           * Also in transition Nootka versions it was left unchanged.
           * Unfixed it invokes stupid names in charts.
           * We are fixing it by insert user preferred style of naming */
        if (qaUnit.time <= maxAnswerTime || ev == examVersion) { // add to m_answList
            m_answList << new TQAunit(qaUnit);
            grabFromLastUnit();
        } else { // add to m_blackList
            m_blackList << qaUnit;
        }
    }
    if (!checkQuestionNumber(questNr)) {
        isExamFileOk = false;
    }
    if (examVersionNr(ev) >= 2 && (m_tmpMist != m_mistNr || m_tmpHalf != m_halfMistNr)) {
        m_mistNr = m_tmpMist; // we try to fix exam file to give proper number of mistakes
        m_halfMistNr = m_tmpHalf;
        isExamFileOk = false;
    } else {
        m_mistNr = m_tmpMist; // transition to exam version 2
    }
    if (ev == examVersion) {
        convertToVersion2();
        m_halfMistNr = m_tmpHalf;
    }
    return isExamFileOk;
}

bool Texam::loadFromXml(QXmlStreamReader &xml)
{
    bool ok = true;
    int questNr = 0;
    if (xml.readNextStartElement()) {
        if (xml.name() != QLatin1String("exam")) {
            qDebug() << "[Texam] There is no 'exam' key in that XML";
            return false;
        }
        m_userName = xml.attributes().value(QStringLiteral("user")).toString();
        if (m_userName.isEmpty() || m_userName.size() > 30) {
            qDebug() << "[Texam] Exam has wrong user name";
            return false;
        }
    }
    while (xml.readNextStartElement()) {
        if (xml.name() == QLatin1String("head")) {
            while (xml.readNextStartElement()) {
                if (xml.name() == QLatin1String("level")) {
                    auto err = m_level->loadFromXml(xml);
                    if (err != Tlevel::e_level_OK) {
                        qDebug() << "[Texam] Exam has wrong level definition" << static_cast<int>(err);
                        ok = false;
                    }
                } else if (xml.name() == QLatin1String("tuning")) {
                    if (!m_tune.fromXml(xml, true)) {
                        qDebug() << "[Texam] Exam has wrong tuning";
                        ok = false;
                    }
                } else if (xml.name() == QLatin1String("totalTime"))
                    m_totalTime = xml.readElementText().toInt();
                else if (xml.name() == QLatin1String("questNr"))
                    questNr = xml.readElementText().toInt();
                else if (xml.name() == QLatin1String("averReactTime"))
                    m_averReactTime = xml.readElementText().toInt();
                else if (xml.name() == QLatin1String("mistNr"))
                    m_mistNr = xml.readElementText().toInt();
                else if (xml.name() == QLatin1String("halfMistNr"))
                    m_halfMistNr = xml.readElementText().toInt();
                else if (xml.name() == QLatin1String("penaltysNr"))
                    m_penaltysNr = xml.readElementText().toInt();
                else if (xml.name() == QLatin1String("finished"))
                    m_isFinished = QVariant(xml.readElementText()).toBool();
                else if (xml.name() == QLatin1String("exercise")) {
                    m_isExercise = true;
                    xml.skipCurrentElement();
                } else
                    Tlevel::skipCurrentXmlKey(xml);
            }
        } else if (xml.name() == QLatin1String("answers")) {
            if (!readAnswerFromXml(m_answList, xml))
                ok = false;
        } else if (xml.name() == QLatin1String("penalties")) {
            if (!readPenaltyFromXml(m_blackList, xml))
                ok = false;
        } else if (xml.name() == QLatin1String("black")) {
            m_blackNumbers.clear();
            while (xml.readNextStartElement()) {
                if (xml.name() == QLatin1String("n"))
                    m_blackNumbers << xml.readElementText().toInt();
                else
                    Tlevel::skipCurrentXmlKey(xml);
            }
        } else
            Tlevel::skipCurrentXmlKey(xml);
    }
    if (!checkQuestionNumber(questNr)) {
        ok = false;
    }
    if (m_tmpMist != m_mistNr || m_tmpHalf != m_halfMistNr) {
        if (m_tmpMist != m_mistNr)
            qDebug() << "[Texam] Mistakes number do not match. Exam file corrupted!" << m_tmpMist << m_mistNr;
        else if (m_tmpHalf != m_halfMistNr)
            qDebug() << "[Texam] 'Not bad' number do not match. Exam file corrupted!" << m_tmpHalf << m_halfMistNr;
        m_mistNr = m_tmpMist; // we try to fix exam file to give proper number of mistakes
        m_halfMistNr = m_tmpHalf;
        ok = false;
    }
    return ok;
}

Texam::EerrorType Texam::saveToFile(const QString &fileName)
{
    if (!fileName.isEmpty())
        setFileName(fileName); // m_fileName becomes fileName
    if (m_fileName.isEmpty())
        return e_noFileName;

    QFile file(m_fileName);
    if (file.open(QIODevice::WriteOnly)) {
        QDataStream out(&file);
        out.setVersion(QDataStream::Qt_5_9);
        out << currentVersion;
        QByteArray arrayXML;
        QXmlStreamWriter xml(&arrayXML);
        //     xml.setAutoFormatting(true);
        xml.writeStartDocument();
        xml.writeComment(
            "\nXML file of Nootka exam data.\nhttps://nootka.sf.net\nThis file should never be opened in other software then Nootka.\nProbably you are doing "
            "something illegal!");
        writeToXml(xml);
        xml.writeEndDocument();

        out << qCompress(arrayXML);

        file.close();
    } else {
        QMessageBox::critical(nullptr, QString(), QObject::tr("Cannot save exam file:\n%1").arg(QString::fromLocal8Bit(qPrintable(file.errorString()))));
        return e_cant_open;
    }
    qDebug() << "[Texam] Exam saved to:" << m_fileName;
    return e_file_OK;
}

void Texam::writeToXml(QXmlStreamWriter &xml)
{
    xml.writeStartElement(QStringLiteral("exam"));
    xml.writeAttribute(QStringLiteral("user"), m_userName);
    xml.writeStartElement(QStringLiteral("head"));
    m_level->writeToXml(xml);
    m_tune.toXml(xml, true);
    xml.writeTextElement(QStringLiteral("totalTime"), QVariant(m_totalTime).toString());
    xml.writeTextElement(QStringLiteral("questNr"), QVariant(count()).toString());
    xml.writeTextElement(QStringLiteral("averReactTime"), QVariant(m_averReactTime).toString());
    xml.writeTextElement(QStringLiteral("mistNr"), QVariant(m_mistNr).toString());
    xml.writeTextElement(QStringLiteral("halfMistNr"), QVariant(m_halfMistNr).toString());
    xml.writeTextElement(QStringLiteral("penaltysNr"), QVariant(m_penaltysNr).toString());
    xml.writeTextElement(QStringLiteral("finished"), QVariant(m_isFinished).toString());
    if (isExercise())
        xml.writeEmptyElement(QStringLiteral("exercise"));
    xml.writeEndElement(); // head
    xml.writeStartElement(QStringLiteral("answers"));
    for (int i = 0; i < count(); ++i)
        m_answList[i]->toXml(xml);
    xml.writeEndElement(); // answers
    if (m_blackList.size()) {
        xml.writeStartElement(QStringLiteral("penalties"));
        for (int i = 0; i < m_blackList.size(); ++i)
            m_blackList[i].toXml(xml);
        xml.writeEndElement(); // penalties
    } else if (m_blackNumbers.size()) {
        xml.writeStartElement(QStringLiteral("black"));
        for (int i = 0; i < m_blackNumbers.size(); ++i)
            xml.writeTextElement(QStringLiteral("n"), QString::number(m_blackNumbers[i]));
        xml.writeEndElement(); // penalties
    }
    xml.writeEndElement(); // exam
}

void Texam::newAttempt()
{
    curQ()->newAttempt();
    if (curQ()->attemptsCount() > 1) { // unset answered and revert mistakes - user tries once more
        if (curQ()->isNotSoBad())
            m_halfMistNr--;
        else if (curQ()->isWrong())
            m_mistNr--;
        else
            qDebug() << "[Texam] A new attempt called for correct answer!";
        curQ()->unsetAnswered();
    }
}

void Texam::sumarizeAnswer()
{
    curQ()->updateEffectiveness();
    curQ()->time = qMin(maxAnswerTime, curQ()->time); // when user think too much
    if (melodies()) {
        m_workTime += curQ()->lastAttempt()->totalTime();
        if (!curQ()->isWrong()) {
            if (curQ()->effectiveness() < 50)
                curQ()->setMistake(TQAunit::e_veryPoor);
            else if (curQ()->effectiveness() < 70)
                curQ()->setMistake(TQAunit::e_poorEffect);
        }
        m_attempts++;
    }
    updateAverageReactTime(true);
    if (melodies()) {
        if (curQ()->isNotSoBad())
            m_halfMistNr++;
        else if (curQ()->isWrong())
            m_mistNr++;
    } else {
        addPenalties(); // for melodies it should be invoked after ensuring that answer was finished
        if (!isExercise())
            updateBlackCount();
        m_workTime += curQ()->time;
    }
    updateEffectiveness();
}

void Texam::addPenalties()
{
    if (!curQ()->isCorrect()) {
        if (melodies()) // for any kind of mistake add one more random melody or mistaken one if not random and melody set
            m_blackNumbers.append(m_level->isMelodySet() && !m_level->randOrderInSet ? count() - 1 : -1);
        if (curQ()->isNotSoBad()) {
            if (!isExercise() && !isFinished())
                m_penaltysNr++;
            if (!melodies())
                m_halfMistNr++;
        } else {
            if (melodies())
                m_blackNumbers.append(count() - 1); // repeat current melody in some further question
            if (!isExercise() && !isFinished())
                m_penaltysNr += 2;
            if (!melodies())
                m_mistNr++;
        }
    }
}

void Texam::updateEffectiveness()
{
    qreal sum = 0.0;
    for (int i = 0; i < count(); ++i)
        sum += answList()->at(i)->effectiveness();
    m_effectivenes = sum / (qreal)count();
}

void Texam::updateAverageReactTime(bool skipWrong)
{
    int totalTime = 0;
    int cnt = 0;
    for (int i = 0; i < count(); ++i) {
        if (!skipWrong || (skipWrong && !m_answList[i]->isWrong())) {
            totalTime += m_answList[i]->time;
            cnt++;
        }
    }
    if (cnt)
        m_averReactTime = totalTime / cnt;
    else
        m_averReactTime = 0;
}

// #################################################################################################
// ###################              PROTECTED           ############################################
// #################################################################################################

void Texam::updateBlackCount()
{
    m_blackCount = 0;
    if (m_blackList.size()) {
        for (int i = 0; i < m_blackList.size(); i++)
            m_blackCount += (m_blackList[i].time - maxAnswerTime);
    }
}

bool Texam::readPenaltyFromXml(QList<TQAunit> &blackList, QXmlStreamReader &xml)
{
    bool ok = true;
    while (xml.readNextStartElement()) {
        if (xml.name() == QLatin1String("u")) {
            blackList << TQAunit(this);
            if (!blackList.last().fromXml(xml)) {
                qDebug() << "[Texam] Exam has wrong unit" << blackList.size();
                blackList.removeLast();
                ok = false;
            }
        } else
            Tlevel::skipCurrentXmlKey(xml);
    }
    return ok;
}

bool Texam::readAnswerFromXml(QList<TQAunit *> &list, QXmlStreamReader &xml)
{
    bool ok = true;
    while (xml.readNextStartElement()) {
        if (xml.name() == QLatin1String("u")) {
            list << new TQAunit(this);
            if (list.last()->fromXml(xml)) {
                grabFromLastUnit();
                if (melodies())
                    m_attempts += curQ()->attemptsCount();
            } else {
                qDebug() << "[Texam] Exam has wrong unit" << list.size();
                list.removeLast();
                ok = false;
            }
        } else
            Tlevel::skipCurrentXmlKey(xml);
    }
    return ok;
}

void Texam::grabFromLastUnit()
{
    m_workTime += curQ()->time;
    if (!curQ()->isCorrect()) {
        if (curQ()->isWrong())
            m_tmpMist++;
        else
            m_tmpHalf++; // not so bad answer
    }
    if (!curQ()->isWrong())
        m_okTime += curQ()->time;
}

bool Texam::checkQuestionNumber(int questNr)
{
    bool ok = true;
    if (questNr != m_answList.size()) {
        qDebug() << "[Texam] Exam questions number read from file" << questNr << "and those calculated" << m_answList.size()
                 << "do not match. Exam file corrupted.";
        ok = false;
    }
    return ok;
}

void Texam::clearAnswList()
{
    for (int i = 0; i < m_answList.size(); ++i)
        delete m_answList[i];
    m_answList.clear();
}

void Texam::transposeAfterBassDropped()
{
    if (m_tune.type() == Ttune::Custom)
        m_tune.riseOctaveUp();
    m_level->convFromDropedBass();
    for (int a = 0; a < m_answList.size(); ++a)
        m_answList[a]->riseOctaveUp();
    for (int b = 0; b < m_blackList.size(); ++b)
        m_blackList[b].riseOctaveUp();
}

/**
 * This method exist for backward compatibility but is has very rare usage in 'modern' Nootka times
 */
void Texam::convertToVersion2()
{
    bool hasStyle = false;
    Tnote::EnameStyle randStyles[3];
    if (m_level->canBeName()) {
        // version 1 didn't put proper Tnote::EnameStyle to file - we fixing it
        hasStyle = true;
        qDebug() << "[Texam] Fixing styles of note names in file";
        if (m_level->requireStyle) { // prepare styles array to imitate switching
            randStyles[0] = Tnote::e_italiano_Si;
            if (GLOB->seventhIsB()) {
                randStyles[1] = Tnote::e_english_Bb;
                randStyles[2] = Tnote::e_nederl_Bis;
            } else {
                randStyles[1] = Tnote::e_norsk_Hb;
                randStyles[2] = Tnote::e_deutsch_His;
            }
        }
    }

    for (int i = 0; i < m_answList.size(); i++) {
        if (m_answList[i]->time > maxAnswerTime) // fix too long times from version 1 if any
            m_answList[i]->time = maxAnswerTime;
        // version 1 didn't put proper Tnote::EnameStyle to file - we fixing it
        if (hasStyle) {
            if (m_level->requireStyle) {
                if (m_answList[i]->questionAs == TQAtype::e_asName && m_answList[i]->answerAs == TQAtype::e_asName) {
                    Tnote::EnameStyle qSt = randStyles[QRandomGenerator::global()->bounded(3)];
                    Tnote::EnameStyle aSt;
                    if (qSt == Tnote::e_italiano_Si)
                        aSt = randStyles[QRandomGenerator::global()->bounded(2) + 1];
                    else
                        aSt = Tnote::e_italiano_Si;
                    m_answList[i]->setStyle(qSt, aSt);
                } else if (m_answList[i]->questionAs == TQAtype::e_asName) {
                    m_answList[i]->setStyle(randStyles[QRandomGenerator::global()->bounded(3)], static_cast<Tnote::EnameStyle>(GLOB->noteNameStyle()));
                } else {
                    if (m_answList[i]->questionAs == TQAtype::e_asName)
                        m_answList[i]->setStyle(static_cast<Tnote::EnameStyle>(GLOB->noteNameStyle()), randStyles[QRandomGenerator::global()->bounded(3)]);
                }
            } else // fixed style - we changing to user preferred
                m_answList[i]->setStyle(static_cast<Tnote::EnameStyle>(GLOB->noteNameStyle()), static_cast<Tnote::EnameStyle>(GLOB->noteNameStyle()));
        }

        if (!m_answList[i]->isCorrect()) {
            quint16 penCnt = 0; // counts of penalties
            if (m_answList[i]->isWrong()) {
                if (i < (m_answList.size() - 1) && areQuestTheSame(m_answList[i], m_answList[i + 1])) {
                    // there was next question repeated
                    if (m_answList[i + 1]->isCorrect()) // and was correct
                        penCnt = 65501; // so add one penalty
                    else // when again wrong
                        penCnt = 65502; // add two
                    // The next loop will add next two penalties !!
                } else // question was not repeated
                    penCnt = 65502;
            } else { // not so bad
                if (i < (m_answList.size() - 1) && areQuestTheSame(m_answList[i], m_answList[i + 1])) {
                    // there was next question repeated
                    if (m_answList[i + 1]->isCorrect()) // and was correct
                        penCnt = 0;
                    else
                        penCnt = 65501;
                }
            }
            if (penCnt) {
                m_blackList << *m_answList[i];
                m_blackList.last().time = penCnt;
                m_penaltysNr += (penCnt - 65500);
            }
        }
    }
}