/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/

#include "qmldumptool.h"
#include "qt4project.h"
#include "qt4projectmanagerconstants.h"
#include <coreplugin/icore.h>

#include <projectexplorer/project.h>
#include <QDesktopServices>
#include <QCoreApplication>
#include <QDir>
#include <QDebug>

namespace Qt4ProjectManager {

static inline QStringList validBinaryFilenames()
{
    return QStringList()
            << QLatin1String("debug/qmldump.exe")
            << QLatin1String("qmldump.exe")
            << QLatin1String("qmldump")
            << QLatin1String("qmldump.app/Contents/MacOS/qmldump");
}

bool QmlDumpTool::canBuild(const QString &installHeadersDir)
{
    QString qDeclHeader = installHeadersDir + QLatin1String("/QtDeclarative/private/qdeclarativemetatype_p.h");
    return QFile::exists(qDeclHeader);
}

QString QmlDumpTool::toolForProject(ProjectExplorer::Project *project)
{
    if (project && project->id() == Qt4ProjectManager::Constants::QT4PROJECT_ID) {
        Qt4Project *qt4Project = static_cast<Qt4Project*>(project);
        if (qt4Project && qt4Project->activeTarget()
         && qt4Project->activeTarget()->activeBuildConfiguration()) {
            QtVersion *version = qt4Project->activeTarget()->activeBuildConfiguration()->qtVersion();
            if (version->isValid()) {
                QString qtInstallData = version->versionInfo().value("QT_INSTALL_DATA");
                QString toolPath = toolByInstallData(qtInstallData);
                return toolPath;
            }
        }
    }
    return QString();
}

QString QmlDumpTool::toolByInstallData(const QString &qtInstallData)
{
    if (!Core::ICore::instance())
        return QString();

    const QString mainFilename = Core::ICore::instance()->resourcePath()
            + QLatin1String("/qml/qmldump/main.cpp");
    const QStringList directories = installDirectories(qtInstallData);
    const QStringList binFilenames = validBinaryFilenames();

    return byInstallDataHelper(mainFilename, directories, binFilenames);
}

QStringList QmlDumpTool::locationsByInstallData(const QString &qtInstallData)
{
    QStringList result;
    QFileInfo fileInfo;
    const QStringList binFilenames = validBinaryFilenames();
    foreach(const QString &directory, installDirectories(qtInstallData)) {
        if (getHelperFileInfoFor(binFilenames, directory, &fileInfo))
            result << fileInfo.filePath();
    }
    return result;
}

QString QmlDumpTool::build(const QString &directory, const QString &makeCommand,
                     const QString &qmakeCommand, const QString &mkspec,
                     const Utils::Environment &env, const QString &targetMode)
{
    return buildHelper(QCoreApplication::tr("qmldump"), QLatin1String("qmldump.pro"),
                       directory, makeCommand, qmakeCommand, mkspec, env, targetMode);
}

QString QmlDumpTool::copy(const QString &qtInstallData, QString *errorMessage)
{
    const QStringList directories = QmlDumpTool::installDirectories(qtInstallData);

    QStringList files;
    files << QLatin1String("main.cpp") << QLatin1String("qmldump.pro")
          << QLatin1String("LICENSE.LGPL") << QLatin1String("LGPL_EXCEPTION.TXT");

    QString sourcePath = Core::ICore::instance()->resourcePath() + QLatin1String("/qml/qmldump/");

    // Try to find a writeable directory.
    foreach(const QString &directory, directories)
        if (copyFiles(sourcePath, files, directory, errorMessage)) {
            errorMessage->clear();
            return directory;
        }
    *errorMessage = QCoreApplication::translate("ProjectExplorer::QmlDumpTool",
                                                "qmldump could not be built in any of the directories:\n- %1\n\nReason: %2")
                    .arg(directories.join(QLatin1String("\n- ")), *errorMessage);
    return QString();
}

QStringList QmlDumpTool::installDirectories(const QString &qtInstallData)
{
    const QChar slash = QLatin1Char('/');
    const uint hash = qHash(qtInstallData);
    QStringList directories;
    directories
            << (qtInstallData + QLatin1String("/qtc-qmldump/"))
            << QDir::cleanPath((QCoreApplication::applicationDirPath() + QLatin1String("/../qtc-qmldump/") + QString::number(hash))) + slash
            << (QDesktopServices::storageLocation(QDesktopServices::DataLocation) + QLatin1String("/qtc-qmldump/") + QString::number(hash)) + slash;
    return directories;
}

} // namespace