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

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** 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

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

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** $QT_END_LICENSE$

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

#include "pathmapper_symbian_p.h"

#include "xqsettingsmanager.h"

#include <QDir>

#include <QFileSystemWatcher>

#include <QTimer>

#include <QDebug>

QTM_BEGIN_NAMESPACE

CCRMLDirectoryMonitor::CCRMLDirectoryMonitor() : CActive(EPriorityStandard)

{

    if (m_fs.Connect() == KErrNone) {

        CActiveScheduler::Add(this);

        IssueNotifyChange();

    }

}

CCRMLDirectoryMonitor::~CCRMLDirectoryMonitor()

{

    Cancel();

    m_fs.Close();

}

void CCRMLDirectoryMonitor::IssueNotifyChange()

{

    _LIT(KCRMLDirectory, "?:\\resource\\qt\\crml");

    m_fs.NotifyChange(ENotifyFile, iStatus, KCRMLDirectory);

    SetActive();

}

void CCRMLDirectoryMonitor::RunL()

{

    emit directoryChanged();

    IssueNotifyChange();

}

void CCRMLDirectoryMonitor::DoCancel()

{

    m_fs.NotifyChangeCancel();

}

PathMapper::PathMapper()

{

    m_CRMLDirectoryMonitor = new CCRMLDirectoryMonitor;

    QTimer *timer = new QTimer(this);

    timer->setSingleShot(true);

    timer->setInterval(1000);

    connect(m_CRMLDirectoryMonitor, SIGNAL(directoryChanged()), timer, SLOT(start()));

    connect(timer, SIGNAL(timeout()), this, SLOT(updateMappings()));

    updateMappings();

}

PathMapper::~PathMapper()

{

    delete m_CRMLDirectoryMonitor;

}

void PathMapper::updateMappings()

{

    QStringList filters;

    filters << "*.qcrml" << "*.confml";

    m_paths.clear();

    foreach (const QFileInfo &info, QDir::drives()) {

        const QDir crmlDir(info.path() + "resource/qt/crml");

        foreach (const QString &fileName, crmlDir.entryList(filters, QDir::Files)) {

            QList<KeyData> keyDatas = m_crmlParser.parseQCrml(crmlDir.filePath(fileName));

            if (m_crmlParser.error() != QCrmlParser::NoError)

                qDebug() << "error:" << m_crmlParser.errorString();

            foreach (const KeyData &keyData, keyDatas) {

                if (!m_paths.contains(keyData.path())) {

                    m_paths.insert(keyData.path(), PathData(PathMapper::Target(keyData.target()),

                                                            keyData.repoId(), keyData.keyId()));

                }

            }

        }

    }

}

bool PathMapper::getChildren(const QString &path, QSet<QString> &children) const

{

    QString basePath = path;

    if (basePath.right(1) != QString(QLatin1Char('/')))

        basePath += QLatin1Char('/');

    foreach (const QString &foundPath, childPaths(basePath)) {

        QString value = foundPath.mid(basePath.size());

        int index = value.indexOf(QLatin1Char('/'));

        if (index != -1)

            value = value.mid(0, index);

        children.insert(value);

    }

    return children.count() > 0;

}

QStringList PathMapper::childPaths(const QString &path) const

{

    QString basePath = path;

    QStringList children;

    if (basePath.right(1) == QString(QLatin1Char('/')))

        basePath.chop(1);

    QHashIterator<QString, PathData> i(m_paths);

    XQSettingsManager settingsManager;

    while (i.hasNext()) {

        i.next();

        if (i.key().startsWith(basePath)) {

            const PathData &data = i.value();

            PathMapper::Target target = data.m_target;

            quint32 category = data.m_category;

            quint32 key = data.m_key;

            XQSettingsKey settingsKey(XQSettingsKey::Target(target), (long)category, (unsigned long)key);

            settingsManager.readItemValue(settingsKey);

            if (settingsManager.error() != XQSettingsManager::NotFoundError) {

                children << i.key();

            }

        }

    }

    return children;

}

bool PathMapper::resolvePath(const QString &path, Target &target, quint32 &category, quint32 &key) const

{

    if (m_paths.contains(path)) {

        const PathData &data = m_paths.value(path);

        target = data.m_target;

        category = data.m_category;

        key = data.m_key;

        return true;

    }

    return false;

}

#include "moc_pathmapper_symbian_p.cpp"

QTM_END_NAMESPACE