/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**************************************************************************/

#include "qtprojectparameters.h"
#include <utils/codegeneration.h>

#include <QTextStream>
#include <QDir>
#include <QCoreApplication>
#include <QDateTime>
#include <QDebug>

namespace Qt4ProjectManager {
namespace Internal {

// ----------- QtProjectParameters
QtProjectParameters::QtProjectParameters()
  : type(ConsoleApp), flags(0), qtVersionSupport(SupportQt4And5)
{
}

QString QtProjectParameters::projectPath() const
{
    QString rc = path;
    if (!rc.isEmpty())
        rc += QDir::separator();
    rc += fileName;
    return rc;
}

// Write out a QT module line.
static inline void writeQtModulesList(QTextStream &str,
                                      const QStringList &modules,
                                      char op ='+')
{
    if (const int size = modules.size()) {
        str << "QT       " << op << "= ";
        for (int i =0; i < size; ++i) {
            if (i)
                str << ' ';
            str << modules.at(i);
        }
        str << "\n\n";
    }
}

void QtProjectParameters::writeProFile(QTextStream &str) const
{
    QStringList allSelectedModules = selectedModules;
    // Handling of widgets module.
    const bool addWidgetsModule =
        (flags & WidgetsRequiredFlag) && qtVersionSupport != SupportQt4Only
        && !allSelectedModules.contains(QLatin1String("widgets"));

    if (addWidgetsModule && qtVersionSupport == SupportQt5Only)
        allSelectedModules.append(QLatin1String("widgets"));
    writeQtModulesList(str, allSelectedModules, '+');
    writeQtModulesList(str, deselectedModules, '-');
    if (addWidgetsModule && qtVersionSupport == SupportQt4And5)
        str << "greaterThan(QT_MAJOR_VERSION, 4): QT += widgets\n\n";

    const QString &effectiveTarget = target.isEmpty() ? fileName : target;
    if (!effectiveTarget.isEmpty())
        str << "TARGET = " <<  effectiveTarget << '\n';
    switch (type) {
    case ConsoleApp:
        // Mac: Command line apps should not be bundles
        str << "CONFIG   += console\nCONFIG   -= app_bundle\n\n";
    case GuiApp:
        str << "TEMPLATE = app\n";
        break;
    case StaticLibrary:
        str << "TEMPLATE = lib\nCONFIG += staticlib\n";
        break;
    case SharedLibrary:
        str << "TEMPLATE = lib\n\nDEFINES += " << libraryMacro(fileName) << '\n';
        break;
    case Qt4Plugin:
        str << "TEMPLATE = lib\nCONFIG += plugin\n";
        break;
    default:
        break;
    }

    if (!targetDirectory.isEmpty())
        str << "\nDESTDIR = " << targetDirectory << '\n';
}

void QtProjectParameters::writeProFileHeader(QTextStream &str)
{
    const QChar hash = QLatin1Char ('#');
    const QChar nl = QLatin1Char('\n');
    const QChar blank = QLatin1Char(' ');
    // Format as '#-------\n# <Header> \n#---------'
    QString header = QLatin1String(" Project created by ");
    header += QCoreApplication::applicationName();
    header += blank;
    header += QDateTime::currentDateTime().toString(Qt::ISODate);
    const QString line = QString(header.size(), QLatin1Char('-'));
    str << hash << line << nl << hash << nl << hash << header << nl
        << hash <<nl << hash << line << nl << nl;
}


QString createMacro(const QString &name, const QString &suffix)
{
    QString rc = name.toUpper();
    const int extensionPosition = rc.indexOf(QLatin1Char('.'));
    if (extensionPosition != -1)
        rc.truncate(extensionPosition);
    rc += suffix;
    return Utils::fileNameToCppIdentifier(rc);
}

QString QtProjectParameters::exportMacro(const QString &projectName)
{
    return createMacro(projectName, QLatin1String("SHARED_EXPORT"));
}

QString QtProjectParameters::libraryMacro(const QString &projectName)
{
     return createMacro(projectName, QLatin1String("_LIBRARY"));
}

} // namespace Internal
} // namespace Qt4ProjectManager