/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the Qt Linguist of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#include "translator.h"

#include "proreader.h"

#include <QtCore/QCoreApplication>

#include <QtCore/QDebug>

#include <QtCore/QDir>

#include <QtCore/QFile>

#include <QtCore/QFileInfo>

#include <QtCore/QRegExp>

#include <QtCore/QString>

#include <QtCore/QStringList>

#include <QtCore/QTextStream>

#include <QtCore/QTranslator>

static void printOut(const QString & out)

{

    QTextStream stream(stdout);

    stream << out;

}

static void printUsage()

{

    printOut(QCoreApplication::tr(

        "Usage:\n"

        "    lrelease [options] project-file\n"

        "    lrelease [options] ts-files [-qm qm-file]\n\n"

        "lrelease is part of Qt's Linguist tool chain. It can be used as a\n"

        "stand-alone tool to convert XML-based translations files in the TS\n"

        "format into the 'compiled' QM format used by QTranslator objects.\n\n"

        "Options:\n"

        "    -help  Display this information and exit\n"

        "    -idbased\n"

        "           Use IDs instead of source strings for message keying\n"

        "    -compress\n"

        "           Compress the QM files\n"

        "    -nounfinished\n"

        "           Do not include unfinished translations\n"

        "    -removeidentical\n"

        "           If the translated text is the same as\n"

        "           the source text, do not include the message\n"

        "    -silent\n"

        "           Do not explain what is being done\n"

        "    -version\n"

        "           Display the version of lrelease and exit\n"

    ));

}

static bool loadTsFile(Translator &tor, const QString &tsFileName, bool /* verbose */)

{

    ConversionData cd;

    bool ok = tor.load(tsFileName, cd, QLatin1String("auto"));

    if (!ok) {

        qWarning("lrelease error: %s\n", qPrintable(cd.error()));

    } else {

        if (!cd.errors().isEmpty())

            printOut(cd.error());

    }

    return ok;

}

static bool releaseTranslator(Translator &tor, const QString &qmFileName,

    bool verbose, bool ignoreUnfinished,

    bool removeIdentical, bool idBased, TranslatorSaveMode mode)

{

    Translator::reportDuplicates(tor.resolveDuplicates(), qmFileName, verbose);

    if (verbose)

        printOut(QCoreApplication::tr( "Updating '%1'...\n").arg(qmFileName));

    if (removeIdentical) {

        if ( verbose )

            printOut(QCoreApplication::tr( "Removing translations equal to source text in '%1'...\n").arg(qmFileName));

        tor.stripIdenticalSourceTranslations();

    }

    QFile file(qmFileName);

    if (!file.open(QIODevice::WriteOnly)) {

        qWarning("lrelease error: cannot create '%s': %s\n",

                 qPrintable(qmFileName), qPrintable(file.errorString()));

        return false;

    }

    ConversionData cd;

    tor.normalizeTranslations(cd);

    cd.m_verbose = verbose;

    cd.m_ignoreUnfinished = ignoreUnfinished;

    cd.m_idBased = idBased;

    cd.m_saveMode = mode;

    bool ok = tor.release(&file, cd);

    file.close();

    if (!ok) {

        qWarning("lrelease error: cannot save '%s': %s\n",

                 qPrintable(qmFileName), qPrintable(cd.error()));

        return false;

    } else if (!cd.errors().isEmpty()) {

        printOut(cd.error());

    }

    return true;

}

static bool releaseTsFile(const QString& tsFileName, bool verbose,

    bool ignoreUnfinished, bool removeIdentical, bool idBased, TranslatorSaveMode mode)

{

    Translator tor;

    if (!loadTsFile(tor, tsFileName, verbose))

        return false;

    QString qmFileName = tsFileName;

    foreach (const Translator::FileFormat &fmt, Translator::registeredFileFormats()) {

        if (qmFileName.endsWith(QLatin1Char('.') + fmt.extension)) {

            qmFileName.chop(fmt.extension.length() + 1);

            break;

        }

    }

    qmFileName += QLatin1String(".qm");

    return releaseTranslator(tor, qmFileName, verbose, ignoreUnfinished, removeIdentical, idBased, mode);

}

int main(int argc, char **argv)

{

    QCoreApplication app(argc, argv);

    QStringList args = app.arguments();

    QTranslator translator;

    if (translator.load(QLatin1String("lrelease_") + QLocale::system().name()))

        app.installTranslator(&translator);

    bool verbose = true; // the default is true starting with Qt 4.2

    bool ignoreUnfinished = false;

    bool idBased = false;

    // the default mode is SaveEverything starting with Qt 4.2

    TranslatorSaveMode mode = SaveEverything;

    bool removeIdentical = false;

    Translator tor;

    QString outputFile;

    int numFiles = 0;

    for (int i = 1; i < argc; ++i) {

        if (args[i] == QLatin1String("-compress")) {

            mode = SaveStripped;

            continue;

        } else if (args[i] == QLatin1String("-idbased")) {

            idBased = true;

            continue;

        } else if (args[i] == QLatin1String("-nocompress")) {

            mode = SaveEverything;

            continue;

        } else if (args[i] == QLatin1String("-removeidentical")) {

            removeIdentical = true;

            continue;

        } else if (args[i] == QLatin1String("-nounfinished")) {

            ignoreUnfinished = true;

            continue;

        } else if (args[i] == QLatin1String("-silent")) {

            verbose = false;

            continue;

        } else if (args[i] == QLatin1String("-verbose")) {

            verbose = true;

            continue;

        } else if (args[i] == QLatin1String("-version")) {

            printOut(QCoreApplication::tr( "lrelease version %1\n").arg(QLatin1String(QT_VERSION_STR)) );

            return 0;

        } else if (args[i] == QLatin1String("-qm")) {

            if (i == argc - 1) {

                printUsage();

                return 1;

            }

            i++;

            outputFile = args[i];

        } else if (args[i] == QLatin1String("-help")) {

            printUsage();

            return 0;

        } else if (args[i][0] == QLatin1Char('-')) {

            printUsage();

            return 1;

        } else {

            numFiles++;

        }

    }

    if (numFiles == 0) {

        printUsage();

        return 1;

    }

    for (int i = 1; i < argc; ++i) {

        if (args[i][0] == QLatin1Char('-') || args[i] == outputFile)

            continue;

        if (args[i].endsWith(QLatin1String(".pro"), Qt::CaseInsensitive)

            || args[i].endsWith(QLatin1String(".pri"), Qt::CaseInsensitive)) {

            QHash<QByteArray, QStringList> varMap;

            bool ok = evaluateProFile(args[i], verbose, &varMap );

            if (ok) {

                QStringList translations = varMap.value("TRANSLATIONS");

                if (translations.isEmpty()) {

                    qWarning("lrelease warning: Met no 'TRANSLATIONS' entry in"

                             " project file '%s'\n",

                             qPrintable(args[i]));

                } else {

                    foreach (const QString &trans, translations)

                        if (!releaseTsFile(trans, verbose, ignoreUnfinished, removeIdentical, idBased, mode))

                            return 1;

                }

            } else {

                qWarning("error: lrelease encountered project file functionality that is currently not supported.\n"

                    "You might want to consider using TS files as input instead of a project file.\n"

                    "Try the following syntax:\n"

                    "    lrelease [options] ts-files [-qm qm-file]\n");

            }

        } else {

            if (outputFile.isEmpty()) {

                if (!releaseTsFile(args[i], verbose, ignoreUnfinished, removeIdentical, idBased, mode))

                    return 1;

            } else {

                if (!loadTsFile(tor, args[i], verbose))

                    return 1;

            }

        }

    }

    if (!outputFile.isEmpty())

        return releaseTranslator(tor, outputFile, verbose, ignoreUnfinished,

                                 removeIdentical, idBased, mode) ? 0 : 1;

    return 0;

}