/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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****************************************************************************/

#include "qmlprojectfileformat.h"
#include "qmlprojectitem.h"
#include "filefilteritems.h"
#include <qmljs/qmljssimplereader.h>

#include <QVariant>
#include <QDebug>

enum {
    debug = false
};

namespace   {

void setupFileFilterItem(QmlProjectManager::FileFilterBaseItem *fileFilterItem, const QmlJS::SimpleReaderNode::Ptr &node)
{
    const QVariant directoryProperty = node->property(QLatin1String("directory"));
    if (directoryProperty.isValid())
        fileFilterItem->setDirectory(directoryProperty.toString());

    const QVariant recursiveProperty = node->property(QLatin1String("recursive"));
    if (recursiveProperty.isValid())
        fileFilterItem->setRecursive(recursiveProperty.toBool());

    const QVariant pathsProperty = node->property(QLatin1String("paths"));
    if (pathsProperty.isValid())
        fileFilterItem->setPathsProperty(pathsProperty.toStringList());

    const QVariant filterProperty = node->property(QLatin1String("filter"));
    if (filterProperty.isValid())
        fileFilterItem->setFilter(filterProperty.toString());

    if (debug)
        qDebug() << "directory:" << directoryProperty << "recursive" << recursiveProperty << "paths" << pathsProperty;
}

} //namespace

namespace QmlProjectManager {

QmlProjectItem *QmlProjectFileFormat::parseProjectFile(const QString &fileName, QString *errorMessage)
{
    QmlJS::SimpleReader simpleQmlJSReader;

    const QmlJS::SimpleReaderNode::Ptr rootNode = simpleQmlJSReader.readFile(fileName);

    if (!simpleQmlJSReader.errors().isEmpty() || !rootNode->isValid()) {
        qWarning() << "unable to parse:" << fileName;
        qWarning() << simpleQmlJSReader.errors();
        if (errorMessage)
            *errorMessage = simpleQmlJSReader.errors().join(QLatin1String(", "));
        return 0;
    }

    if (rootNode->name() == QLatin1String("Project")) {
        QmlProjectItem *projectItem = new QmlProjectItem();

        const QVariant mainFileProperty = rootNode->property(QLatin1String("mainFile"));
        if (mainFileProperty.isValid())
            projectItem->setMainFile(mainFileProperty.toString());

        const QVariant importPathsProperty = rootNode->property(QLatin1String("importPaths"));
        if (importPathsProperty.isValid())
            projectItem->setImportPaths(importPathsProperty.toStringList());

        if (debug)
            qDebug() << "importPath:" << importPathsProperty << "mainFile:" << mainFileProperty;

        foreach (const QmlJS::SimpleReaderNode::Ptr &childNode, rootNode->children()) {
            if (childNode->name() == QLatin1String("QmlFiles")) {
                if (debug)
                    qDebug() << "QmlFiles";
                QmlFileFilterItem *qmlFileFilterItem = new QmlFileFilterItem(projectItem);
                setupFileFilterItem(qmlFileFilterItem, childNode);
                projectItem->appendContent(qmlFileFilterItem);
            } else if (childNode->name() == QLatin1String("JavaScriptFiles")) {
                if (debug)
                    qDebug() << "JavaScriptFiles";
                JsFileFilterItem *jsFileFilterItem = new JsFileFilterItem(projectItem);
                setupFileFilterItem(jsFileFilterItem, childNode);
                projectItem->appendContent(jsFileFilterItem);
            } else if (childNode->name() == QLatin1String("ImageFiles")) {
                if (debug)
                    qDebug() << "ImageFiles";
                ImageFileFilterItem *imageFileFilterItem = new ImageFileFilterItem(projectItem);
                setupFileFilterItem(imageFileFilterItem, childNode);
                projectItem->appendContent(imageFileFilterItem);

            } else if (childNode->name() == QLatin1String("CssFiles")) {
                if (debug)
                    qDebug() << "CssFiles";
                CssFileFilterItem *cssFileFilterItem = new CssFileFilterItem(projectItem);
                setupFileFilterItem(cssFileFilterItem, childNode);
                projectItem->appendContent(cssFileFilterItem);
            } else if (childNode->name() == QLatin1String("Files")) {
                if (debug)
                    qDebug() << "Files";
                OtherFileFilterItem *otherFileFilterItem = new OtherFileFilterItem(projectItem);
                setupFileFilterItem(otherFileFilterItem, childNode);
                projectItem->appendContent(otherFileFilterItem);
            } else {
                qWarning() << "Unknown type:" << childNode->name();
            }
        }
        return projectItem;
    }

    if (errorMessage)
        *errorMessage = tr("Invalid root element: %1").arg(rootNode->name());

    return 0;
}

} // namespace QmlProjectManager