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#include "testlupdate.h"

#if CHECK_SIMTEXTH

#include "../shared/simtexth.h"

#endif

#include <QtCore/QDir>

#include <QtCore/QDebug>

#include <QtCore/QFile>

#include <QtCore/QByteArray>

#include <QtTest/QtTest>

class tst_lupdate : public QObject

{

    Q_OBJECT

public:

    tst_lupdate() { m_basePath = QDir::currentPath() + QLatin1String("/testdata/"); }

private slots:

    void good_data();

    void good();

    void output_ts();

    void commandline_data();

    void commandline();

#if CHECK_SIMTEXTH

    void simtexth();

    void simtexth_data();

#endif

private:

    TestLUpdate m_lupdate;

    QString m_basePath;

    void doCompare(const QStringList &actual, const QString &expectedFn, bool err);

    void doCompare(const QString &actualFn, const QString &expectedFn, bool err);

};

void tst_lupdate::doCompare(const QStringList &actual, const QString &expectedFn, bool err)

{

    QFile file(expectedFn);

    int i = 0, ei = expected.size(), gi = actual.size();

    for (; ; i++) {

        if (i == gi) {

            if (i == ei)

                return;

            gi = 0;

            break;

        } else if (i == ei) {

            ei = 0;

            break;

        } else {

            QString act = actual.at(i);

            act.remove('\r');

            if (err ? !QRegExp(expected.at(i)).exactMatch(act) :

                         (act != expected.at(i))) {

                bool cond = true;

                while (cond) {

                    act = actual.at(gi - 1);

                    act.remove('\r');

                    cond = (ei - 1) >= i && (gi - 1) >= i &&

                         (err ? QRegExp(expected.at(ei - 1)).exactMatch(act) :

                                (act == expected.at(ei - 1)));

                    if (cond) {

                        ei--, gi--;

                    }

                }

                break;

            }

        }

    }

    QByteArray diff;

    for (int j = qMax(0, i - 3); j < i; j++)

        diff += expected.at(j) + '\n';

    diff += "<<<<<<< got\n";

    for (int j = i; j < gi; j++) {

        diff += actual.at(j) + '\n';

        if (j >= i + 5) {

            diff += "...\n";

            break;

        }

    }

    diff += "=========\n";

    for (int j = i; j < ei; j++) {

        diff += expected.at(j) + '\n';

        if (j >= i + 5) {

            diff += "...\n";

            break;

        }

    }

    diff += ">>>>>>> expected\n";

    for (int j = ei; j < qMin(ei + 3, expected.size()); j++)

        diff += expected.at(j) + '\n';

    QFAIL(qPrintable((err ? "Output for " : "Result for ") + expectedFn + " does not meet expectations:\n" + diff));

}

void tst_lupdate::doCompare(const QString &actualFn, const QString &expectedFn, bool err)

{

    QFile afile(actualFn);

    doCompare(actual, expectedFn, err);

}

void tst_lupdate::good_data()

{

    QTest::addColumn<QString>("directory");

    QDir parsingDir(m_basePath + "good");

    QStringList dirs = parsingDir.entryList(QDir::Dirs | QDir::NoDotAndDotDot, QDir::Name);

#ifndef Q_OS_WIN

    dirs.removeAll(QLatin1String("backslashes"));

#endif

    foreach (const QString &dir, dirs)

        QTest::newRow(dir.toLocal8Bit()) << dir;

}

void tst_lupdate::good()

{

    QFETCH(QString, directory);

    QString dir = m_basePath + "good/" + directory;

    QString expectedFile = dir + QLatin1String("/project.ts.result");

    qDebug() << "Checking...";

    // qmake will delete the previous one, to ensure that we don't do any merging....

    QString generatedtsfile(QLatin1String("project.ts"));

    m_lupdate.setWorkingDirectory(dir);

    m_lupdate.qmake();

    // look for a command

    QString lupdatecmd;

    QFile file(dir + "/lupdatecmd");

    if (file.exists()) {

        while (!file.atEnd()) {

            QByteArray cmdstring = file.readLine().simplified();

            if (cmdstring.startsWith('#'))

                continue;

            if (cmdstring.startsWith("lupdate")) {

                cmdstring.remove(0, 8);

                lupdatecmd.append(cmdstring);

                break;

            } else if (cmdstring.startsWith("TRANSLATION:")) {

                cmdstring.remove(0, 12);

                generatedtsfile = dir + QLatin1Char('/') + cmdstring.trimmed();

            }

        }

        file.close();

    }

    if (lupdatecmd.isEmpty()) {

        lupdatecmd = QLatin1String("project.pro -ts project.ts");

    }

    lupdatecmd.prepend("-silent ");

    m_lupdate.updateProFile(lupdatecmd);

    // If the file expectedoutput.txt exists, compare the

    // console output with the content of that file

    QFile outfile(dir + "/expectedoutput.txt");

    if (outfile.exists()) {

        QString errs = m_lupdate.getErrorMessages().at(1).trimmed();

        QStringList errslist = errs.split(QLatin1Char('\n'));

        doCompare(errslist, outfile.fileName(), true);

        if (QTest::currentTestFailed())

            return;

    }

    doCompare(generatedtsfile, expectedFile, false);

}

void tst_lupdate::output_ts()

{

    QString dir = m_basePath + "output_ts";

    m_lupdate.setWorkingDirectory(dir);

    // look for a command

    QString lupdatecmd;

    QFile file(dir + "/lupdatecmd");

    if (file.exists()) {

        while (!file.atEnd()) {

        QByteArray cmdstring = file.readLine().simplified();

            if (cmdstring.startsWith('#'))

                continue;

            if (cmdstring.startsWith("lupdate")) {

                cmdstring.remove(0, 8);

                lupdatecmd.append(cmdstring);

                break;

            }

        }

        file.close();

    }

    QDir parsingDir(m_basePath + "output_ts");

    QString generatedtsfile =

        dir + QLatin1String("/toplevel/library/tools/translations/project.ts");

    QFile::remove(generatedtsfile);

    lupdatecmd.prepend("-silent ");

    m_lupdate.qmake();

    m_lupdate.updateProFile(lupdatecmd);

    // If the file expectedoutput.txt exists, compare the

    // console output with the content of that file

    QFile outfile(dir + "/expectedoutput.txt");

    if (outfile.exists()) {

        QString errs = m_lupdate.getErrorMessages().at(1).trimmed();

        QStringList errslist = errs.split(QLatin1Char('\n'));

        doCompare(errslist, outfile.fileName(), true);

        if (QTest::currentTestFailed())

            return;

    }

    doCompare(generatedtsfile, dir + QLatin1String("/project.ts.result"), false);

}

void tst_lupdate::commandline_data()

{

    QTest::addColumn<QString>("currentPath");

    QTest::addColumn<QString>("commandline");

    QTest::addColumn<QString>("generatedtsfile");

    QTest::addColumn<QString>("expectedtsfile");

    QTest::newRow("Recursive scan") << QString("recursivescan")

       << QString(". -ts foo.ts") << QString("foo.ts") << QString("foo.ts.result");

    QTest::newRow("Deep path argument") << QString("recursivescan")

       << QString("sub/finddialog.cpp -ts bar.ts") << QString("bar.ts") << QString("bar.ts.result");

}

void tst_lupdate::commandline()

{

    QFETCH(QString, currentPath);

    QFETCH(QString, commandline);

    QFETCH(QString, generatedtsfile);

    QFETCH(QString, expectedtsfile);

    m_lupdate.setWorkingDirectory(m_basePath + currentPath);

    QString generated =

        m_basePath + currentPath + QLatin1Char('/') + generatedtsfile;

    QFile gen(generated);

    if (gen.exists())

        QVERIFY(gen.remove());

    if (!m_lupdate.run("-silent " + commandline))

        qDebug() << m_lupdate.getErrorMessages().last();

    doCompare(generated, m_basePath + currentPath + QLatin1Char('/') + expectedtsfile, false);

}

#if CHECK_SIMTEXTH

void tst_lupdate::simtexth()

{

    QFETCH(QString, one);

    QFETCH(QString, two);

    QFETCH(int, expected);

    int measured = getSimilarityScore(one, two.toLatin1());

    QCOMPARE(measured, expected);

}

void tst_lupdate::simtexth_data()

{

    using namespace QTest;

    addColumn<QString>("one");

    addColumn<QString>("two");

    addColumn<int>("expected");

    newRow("00") << "" << "" << 1024;

    newRow("01") << "a" << "a" << 1024;

    newRow("02") << "ab" << "ab" << 1024;

    newRow("03") << "abc" << "abc" << 1024;

    newRow("04") << "abcd" << "abcd" << 1024;

}

#endif

QTEST_MAIN(tst_lupdate)

#include "tst_lupdate.moc"